Home

Single Stage Compressor Controller User Manual

1. All Healthy epnAmeeg epnAmeeg F Control Loops Ready Fi Extnl Rely To Start 1 Fd Anti Surge Viv Ready Fd Extnl Rdy To Start 2 Fd CapacityllGV Ready Fd Extnl Rdy To Start 3 E Extn Ray To Start 4 Wd Digital inputs OK Fd Analog Inputs OK PP Digital Outputs oK Fad Analog Outputs OK lt q 4 4m eo E 4m oo Ep The Permissives screen has two pages Use the screen navigation arrow keys at the bottom to navigate between the two pages 112 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 On the Permissives screen each permissive has a visual status indication to identify whether the permissive is Ready Not Ready Bypassed or First Out This table explains these visual indications Visual Indication Example V Control Loops Ready x Control Loops Ready Wf Control Loops Ready IE control Loops Ready Explanation The green check mark indicates that the permissive status is Ready The red X indicates the permissive is Not Ready The permissive was not the First Out permissive The red X indicates the permissive is Not Ready The yellow highlight indicates the permissive is the First Out The yellow highlight indicates the permissive was First Out The check mark indicates the permissive status has returned to Ready The yellow highlight remains until all permissives have returned to Ready The grey appearance indicates the permissive is Bypassed
2. Cap01 Control Cap02 Control Analog Inputs Valve Control Compressor Warnings Screen Overview From any main screen press the Warnings icon A onthe navigation toolbar to open the Warnings screen The Warnings screen has two pages for alerting the user regarding important errors or other operating condition When the Warnings screen opens the last viewed page is presented to the user Description Warnings Screen Level 1 Preventing Operation Display Features e level 1 warnings are presented by an orange color e The Warning icon on the top navigation toolbar will change color to alert the operator when a warning condition is present Operational Features e No user operations required from this screen Warnings Screen Level 2 Function Disabled Bypassed Display Features e Level 2 warnings are presented by an yellow color e The Warning icon on the top navigation toolbar will change color to alert the operator when a warning condition is present Operational Features e No user operations required from this screen Trend Select Screen Overview From any main screen press the Trend icon on the navigation toolbar to open the Trend Select screen The Trend Select screen has only one page containing a list of trend groups Description Trend Select Screen Display Features e Trend Group selector Operational Features e Use A and tochoose the desired trend group e Press to open the Trend Detail p
3. Open 0 100 100 Sets the maximum limit for the control value for the device 100 Control Value Minimum Limit 96 Open Sets the minimum limit for the control value for the device Valve Fail Direction Choices 0 Closed i e Valve is Air to Open 1 Open i e Valve is Air to Close Typically the device is Air to Open and fails closed This setting is used to generate the analog output signal direction from the control value which is always expressed as 96 open Device Position Deviation Alarm Deadband 96 When one of the multi signal analog input channels is configured for capacity device position feedback the controller supports a position deviation alarm This parameter sets the deadband limit for the alarm When the difference between the control value and position feedback exceed this deadband the deviation alarm timer is activated Device Position Deviation Alarm Time seconds This parameter is the preset for the deviation alarm timer If the position deviation remains active for this time the position deviation alarm is generated Rockwell Automation Publication 1711 UM002A EN P September 2012 77 Chapter 5 SSCC Configuration 21 Capacity Primary PID Loop List 21 defines the configuration settings for the capacity control primary PID loop This PID loop is optional and must be configured for use using this parameter list The configuration parameters for this loop include the following
4. Page 1 Operator Use Input PV button M Eor A Use Substitute PV button M E or A Substitute PV value M Eor A Page 2 Configuration PV EU Minimum value EorA PV EU Maximum value EorA Has Extended Scaling setting EorA Square root Extract setting EorA Has Hi Alarm setting EorA Has Lo Alarm setting EorA Hi Alarm Limit value EorA Lo Alarm Limit value EorA Alarm Deadband value EorA Primary Units of Measure string EorA Secondary Units of Measure string EorA Device Description string EorA Table 27 Analog Output Device Screen popup Page Function Requiring Security Privilege User Roles Page 1 Operator Operator Mode button 0 S MorE Program Mode button 0 S MorE Operator Control value 0 S MorE Rockwell Automation Publication 1711 UM002A EN P September 2012 45 Chapter4 Human Machine Interface Table 27 Analog Output Device Screen popup Page Function Requiring Security Privilege User Roles Page 2 Configuration CV EU Minimum value Value set by logic CV EU Maximum value Value set by logic Fail Open setting Value set by logic Has Low Resolution AO setting Value set by logic Has Position Feedback setting Value set by logic Deviation DB value Value set by logic Deviation Minimum Duration value Value set by logic Primary Unit of Measure string EorA Secondary Unit of Measure string EorA Device Description string EorA Table 28 PID Loop Device Screen popup Page Function Requiring Sec
5. V Close Screen Compressor Run DI q Edit Device Name Disallow Substitute P 4 Disallow Channel Configuration Eni UR Dr E v Substitute PV Use This Signal y mode Table 77 lists the configuration items displayed on the Digital Input Faceplate Configuration page and the corresponding parameter lists and parameter numbers used for configuration Table 77 Digital Input Faceplate Configuration Parameter List Cross Reference Faceplate Configuration Item Parameter List Parameter Disallow Substitute PV List 25 DINs subst PV 0 Allow 1 DisAllow Parameter various individual per channel DI 1 Active Status List 09 Digital Input Channel Configuration Parameter various individual per channel Use This Signal List 09 Digital Input Channel Configuration Parameter various individual per channel Customize the Channel From the device configuration you may edit the description This represents a string tag in the HMI not the controller This tag is retentive and saved in the HMI memory For example you may want to include the device tag number in the description and identify the signal more clearly for example PSL 1014 Low Lube Oil Pressure String Tag limits are Description 34 characters 138 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Digital Output Device Faceplate The Digital Output Device faceplate provides a graphical interface to the operational
6. amp R of 2 A n i B Display Features Maintenance Configuration BES Parameters e Configuration buttons identified e Bypass Enable Disable buttons identified e Parameter list configuration and management identified Operational Features e No operational actions required from this page Rockwell Automation Publication 1711 UM002A EN P September 2012 37 Chapter4 Human Machine Interface Table 13 Help Screen Pages Continued Page Example Screen Description pum z Help Screen Trends Security Hardware Status E NERKA Trend Security Hardware Status Display Features B eee e Trend popup screen operational buttons identified E RES i Fautts S e Security access buttons identified e Hardware status management buttons identified Tes J contig 7 X Set Controller ax Clock Next Pen Operational Features e No operational actions required from this page a 00000000 Help Screen Indicators A eguAEee998 Indicators Display Features e Compressor operation summary indicators identified Operational Features e No operational actions required from this page E r IB cor ooooooeo Help Screen Commands SARAHB Commands Display Features e Operating buttons identified Operational Features e No operational actions required from this page oooooooe HMI Secu rity The HMI includes a security model to restrict access to specific functions The model reli
7. Chapter 4 Human Machine Interface Table 7 Maintenance Screen Pages Page Example Screen s 32 epgwuAEBeegB Configuration Hardware ue de t Device Operation amp Settings Compressor Flow a 00 m SFERZame oB Hardware E Configuration Fo de IO a Bypass Interlocks amp Permissives Device Operation amp Settings Compressor Flow epuAEeeg Change Password Step 1 Log In As Desired User Current User Engineer e3 Fo Step 2 Change Password Current User Engineer epuAEBeeg Localization Select Language Select Units Of Measure Primary 4m O06 Secondary Maintenance Screen Overview From any main screen press the Maintenance icon of on the navigation toolbar to open the Maintenance screen The Maintenance screen has three pages for configuration and maintenance activities When the Maintenance screen opens the last viewed page is presented Description Maintenance Screen Configuration and Settings Display Features e Access to configuration device settings and hardware status monitoring e Bypass interlocks and permissives only shown if configured Operational Features PS T e Press to access Parameter Configuration popup screen e Press ES to access Interlocks Configuration popup screen e Press to access Permissives Configuration popup screen e Press E to access Hardware popup screen to access controller and PanelView Plus status information
8. Chapter 5 he configured 81 Chapter 5 SSCC Configuration 23 Anti Surge Capacity Decoupling Configuration List 23 defines the configuration settings used for decoupling the anti surge and capacity controls The following decoupling features are available e Useful when anti surge control and capacity control are configured in the SSCC If capacity control is not configured these settings can be ignored e Management of the anti surge and capacity controls so they do not fight each other at operating points near the control limit line e At operating points between the specified initiate and release points the capacity control action is held so the capacity controller does not drive the compressor to surge e This decoupling method allows the anti surge controller to stabilize flow first and then release the capacity control for further action when safe to do so The following table identifies the configuration parameters range limits and initial values Table 53 Parameter List 23 Anti Surge Capacity Decoupling Configuration No Description Range Initial Value User configured Value 01 02 03 82 Use Decoupling Choices 0or 1 0 No do not use decoupling methods 1 Yes use the decoupling methods Decoupling Initiate Point DP1 3 This value defines the distance below the control limit line where decoupling action is Initiated When the operating point moves below the control limi
9. On the Warnings screen each warning has a visual status indication This table explains these visual indications Warning Visual Indication Example Explanation D Normal no warning condition no color indication Surge Test ASC Mode protection bypassed DUPC Do A Level 1 warning condition exists orange color cK E EHE Level 2 warning condition exists yellow color Table 67 provides an explanation of each warning Table 67 Descriptions of Warnings Warning Explanation Not Logged In Default user No security privileges Log into HMI to obtain desired level of access Head Calc Config Error Configuration parameters required for compressor head calculation are invalid Check relevant configuration settings and correct as required OP Calc Config Error Configuration parameters required for compressor operating point calculation are invalid Check relevant configuration settings and correct as required Surge Map Config Error Configuration parameters required for compressor surge map are invalid Check relevant configuration settings and correct as required Interlock and Permissive Bypassed Bypasses are enabled for interlocks and permissives Check interlocks and permissives to familiarize which functions may be bypassed Digital Input in Substitute PV mode One or more digital input channels in substitute PV mode System will not respond to the relevant fie
10. Recycle Valve This setting is used to modify the representation of the anti surge valve connections on the Process Overview page of the Operator screen Open Slew Rate sec 0 999999 100 Limits the opening rate of the control value Normally the anti surge opening slew rate is set to allow fast opening Close Slew Rate sec 0 999999 2 Limits the closing rate of the control value Normally the anti surge closing slew rate is set to close the valve slowly Control Value Max Limit 96 Open Sets the max limit for the control value for the valve Rockwell Automation Publication 1711 UM002A EN P September 2012 69 Chapter5 SCC Configuration Table 45 Parameter List 15 Anti Surge Control General Configuration Continued Description Range Initial Value User configured Value 08 Control Value Min Limit 96 Open Sets the min limit for the control value for the valve 09 Incipient Surge Control Value Increment 96 Open On incipient surge detection this control value is incremented by this amount This increment is not subject to open slew rate limits This increment serves to bump the anti surge valve open more than the PID calculations are doing themselves when an incipient surge is detected Note This Incipient Surge Increment action requires that one of the multi use analog input channels be configured for the SurgeGard signal input see list 07 AIN Multi use Signal A on page 59 and list 08 AIN Multi
11. Select the desired parameter list Click Restore to update the parameter table on the screen For each parameter in the list click Edit Parameter to set the desired value Click Download to download the configuration to the controller 1 2 3 4 Click Save to save the configuration to the HMI file memory 5 6 Click Restore to confirm the controller values Is your compressor running e Yes You cannot use the Parameter Configuration screen to make changes Instead you can use the device faceplates on the HMI to change many configuration parameters e No Perform the following steps 1 2 3 Select a parameter list Click Restore to update the parameter table Review the table to determine if the parameter you want to change in this list If so continue if not return to step 1 Click Upload to read the controller values to the HMI file memory Click Restore to update the parameter table FILE column is updated from the Upload Scroll to the parameter s you want to change enter the desired value and click Edit Parameter Click Save to save the changes to the HMI file memory Click Download to download the configuration to the controller Click Restore to confirm the controller parameter values 92 Rockwell Automation Publication 1711 UM002A EN P September 2012 What Task Do You Want to Accomplish have changed settings in the controller using device faceplates on the HMI Now want to save the co
12. Table 30 Available Configuration Parameter Lists Continued Parameter List Name 12 Surge Map Definition on page 65 13 Surge and Margin Configuration on page 66 14 Run and Load Configuration on page 68 15 Anti Surge Control General Configuration on page 69 16 ASC Primary PID Loop on page 70 17 ASC Primary PID Loop Adaptive Integral on page 72 18 ASC Primary PID Loop Adaptive Proportional on page 73 19 ASC Secondary PID Loop on page 74 20 Capacity Control General Configuration on page 76 21 Capacity Primary PID Loop on page 78 22 Capacity Secondary PID Loop on page 80 23 Anti Surge Capacity Decoupling Configuration on page 82 24 AINs Substitute PV on page 83 25 DINs Substitute PV on page 84 26 Reserved for Future Use on page 84 27 Interlock Bypassable Configuration on page 85 28 Permissive Bypassable Configuration on page 86 29 Modbus Serial Port Configuration on page 87 30 Application HMI Configuration on page 88 Summary of Parameters Compressor surge map 10 segment lookup table values head vs operating point plus inlet guide vane positions if applicable Anti surge control margin properties surge detection properties and operating point tracking properties Compressor run determination and manual auto load configuration Anti surge control and valve properties including control value limits slew rates position deviation alarming Anti surge PID loop min
13. Y Axis Pre configured to EU range of Pen s Trend Sampling 1 second Trend History Trend Log 240 samples 4 minutes available on Trend Open Display Buffer 4800 samples 80 minutes while screen open Clears when screen closed 158 Rockwell Automation Publication 1711 UM002A EN P September 2012 Serial Port Configuration Chapter Modbus Interface The SSCC has a RS 232 serial port for Modbus communication The port is located on the front of the controller The protocol supported is RTU in slave mode The following table shows the parameters related to Modbus communication Table 87 Modbus Communication Parameters 4 Parity Configuration 0 None 1 Odd 2 Even 0 2 Baud Rate Read back 0 38400 6 Parity Read back 7 Set Port Config 1 Set Port Config c N Un ce EN Configuration of the Modbus interface is performed through the HMI Refer to configuration details for parameter list 29 Modbus Serial Port Configuration on page 87 Figure 49 Modbus Serial Port Configuration Screen Restore successful SELECT 02 Reg Scaling Range 32757 32757 03 Baud Rate Cfg 19200 19200 LE 04 Parity Cfg 0 M 1 0 2 E 1 1 05 Baud Rate Readback 38400 O0 06 Parity Readback 1 T Y Rockwell Automation Publication 1711 UM002A EN P September 2012 159 Chapter7 Modbus Interface Modbus Holding Registers Modbus data access to the SSCC utilizes only Modbus holding registers Modbus function code 3 can be used
14. G x Step 2 Change Password Current User Engineer r9 a 600000 gt lt a O60 gt Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 User Logout When logged in the HMI provides you with particular security privileges based on your user role In order to safeguard against unauthorized changes to configuration or operational modes it is recommended that you logout and return to the default user role which has no security privileges when the unit is unattended You can logout from either the Operator or Maintenance screen Follow these steps to log out of the HMI 1 Complete the steps in User Login on page 39 to access either the Operator or Maintenance screen 2 Press 2 9 to return to the default user access level Change the User Password The HMI application has initial passwords set for each user role as presented earlier in this chapter From the HMI it is possible to change the password for each user role Changing the user password requires the following two main processes e Login as the desired user e Change the password for the user Follow these steps to change the user password 1 Complete the steps in User Login on page 39 to access the Maintenance screen Login Change Password page 2 Press 9 The Change Password dialog box appears Change Password Operator Mew Password FX Conin Password F4 in EE Rockwell Automation Publi
15. The check mark indicates the permissive status is Ready The grey appearance indicates the permissive is Bypassed The X indicates the permissive status is Not Ready Table 66 provides an explanation of each permissive Table 66 Description of Permissives Permissive Control Loops Ready AntiSurge Vlv Ready Capacity IGV Ready Digital Inputs OK Analog Inputs OK Digital Outputs OK Analog Outputs OK External Ready To Start 1 External Ready To Start 2 External Ready To Start 3 External Ready To Start 4 Explanation Ready when all the PID loops configured for use are in the Auto mode Ready when the anti surge control value and position feedback signals are within position deviation limits If anti surge position feedback signal is not configured this permissive is always Ready Ready when the capacity control value and position feedback signals are within position deviation limits If capacity control feedback signal is not configured this permissive is always Ready Ready when the digital input module slot is healthy Ready when analog input module slot is healthy and all configured AIN channels are within range limits no under range or over range conditions Ready when all digital output channels are in Program mode and the digital output module slot is healthy Ready when all analog output channels are in Program mode and the analog output module slot is healthy Ready when the associated exte
16. True ASC Primary Control AO Control PID Loop ae Limiter SCL ASC Secondary PID Loop Configurable Control Track Feedback Q Ps Pd or AuxCtrlPV From HMI Rockwell Automation Publication 1711 UM002A EN P September 2012 105 Chapter6 SSCCOperation Common Faceplate features e PV value units and bar graph e SP value and slider indication e CV value and bar graph e Control Track indication e PID button to access loop faceplate detail 106 Capacity Control PID Loops Overview Capacity control is provided through two optional PID loops each configurable for the choice of process variable to control Typically one PV would be the primary control measure and a secondary control measure might be considered for an override controller For instance the primary capacity control measure may be discharge pressure for example Pd on AIN channel 2 A secondary override control may be required to limit power or amps on an electric motor driving the compressor The auxiliary control PV input AIN channel 3 would be connected to this measurement Page 6 of the Operator screen provides an overview of these two capacity control PID loops Figure 22 Operator Screen Page 6 Example Configurable Primary and Secondary PID Loops Faceplates configured e Blank Panels not configured AuxPV PVsignal type epunAmneegu Capacity Primary Loop Capacity Secondary Loop 1
17. low alarm limit Surge Test Enabled Surge test is enabled which bypasses the Manual mode protection for the anti surge primary PID loop 176 Rockwell Automation Publication 1711 UM002A EN P September 2012 Alarm Example Troubleshooting Chapter 8 The following sequence provides an example of checking and resetting alarms Alarm status Indications OPERATO B y A r 9H sav y xv slot 3 1769 IFa I 1 5034 493 e 5348 3571 a997 sio oa om 4d a a la Compressor Flow Suction Pressure Discharge Pressure Auxiliary Cntrl Sig Suction Temperature Discharge Temp Multi Signal A MultiSignal B Observations and Actions The color of the Alarm button indicates the alarm condition e Coloris pink steady alarm severity is Fault 4 e Press M toopen the Alarm screen On the Alarm screen there are three alarms shown Each alarm has a flashing color indication The alarm with the alarm severity fault pink is represented by the Discharge Press Underrange alarm In this case a bad discharge pressure signal causes the Compressor Head Fault which triggers the Minimum Flow Fallback control strategy Press v to acknowledge all of the alarm indications All three alarms become steady color after acknowledgement Investigation of the discharge pressure analog input signal confirms that the transmitter signal is below the threshold for underrange This example shows the Analo
18. m op amp A a Display Features ockwe N l Automation e Product Description Catalog Number Version and Serial Number Application Information Description Single Stg Compressor Cntrl Operational Features Catalog Number 1711N A02NS SCC i i Varstisn B1 e No operational actions required from this page Serial Number C01D61D0 2 Help Screen Navigation 4 6 7X 9 amp a B of a A m a Display Features creen Navigation Jv Es e Navigation icon toolbar items identified e Page navigation and page scrolling identified ong Operational Features e No operational actions required from this page 00000000 3 Help Screen Interlocks Permissives 4 x 7X amp R of A A A a Display Features Interlock Permissive Jc om ondin ok flot S ypassed input Condtion OK e Interlock and permissive icon symbols identified pues E nout Condtion Notok e Interlock and permissive signal status indications identified Operational Features e No operational actions required from this page 00800000 4 Help Screen Alarms Warnings 4 pa 7X 9 amp a DNA E E Display Features arms Warnings M M uu gl Acknowledge Preventing e Alarm icon severity classification colors identified ok Function e Alarm screen operation buttons identified e Warning icon classification colors identified Operational Features e No operational actions required from this page 5 Help Screen Maintenance Configuration Gf
19. or contact your local Rockwell Automation representative New Product Satisfaction Return Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility However if your product is not functioning and needs to be returned follow these procedures United States Contact your distributor You must provide a Customer Support case number call the phone number above to obtain one to your distributor to complete the return process Outside United States Please contact your local Rockwell Automation representative for the return procedure Documentation Feedback Your comments will help us serve your documentation needs better If you have any suggestions on how to improve this document complete this form publication RA DU002 available at http www rockwellautomation com literature www rockwellautomation com Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation NV Pegasus Park De Kleetlaan 12a 1831 Diegem Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1711 UM002A EN P September 2012 Copyright O 2012 Rockwell Automation Inc All
20. 11 Rockwell Automation Publication 1711 UM002A EN P September 2012 Index P PanelView activate 25 description 24 exit graphics 168 login 39 logout 41 memory 93 navigate 27 security 38 set clock 168 toolbar 29 PanelView fails to power up troubleshoot 163 Parameter Configuration screen access 89 description 90 security privileges 44 parameter list 01 AIN Compressor Flow 53 02 AIN Suction Pressure 54 03 AIN Discharge Pressure 55 04 AIN Auxiliary Control Signal 56 05 AIN Suction Temperature 57 06 AIN Discharge Temperature 58 07 AIN Multi use Signal A 59 08 AIN Multi use Signal B 60 09 Digital Input Channel Configuration 61 10 Digital Output Channel Configuration 63 11 Compressor Configuration Information 64 12 Surge Map Definition 65 13 Surge and Margin Configuration 66 14 Run and Load Configuration 68 15 Anti Surge Control General Configuration 69 16 ASC Primary PID Loop 71 17 ASC Primary PID Loop Adaptive Integral 72 18 ASC Primary PID Loop Adaptive Proportional 73 19 ASC Secondary PID Loop 74 20 Capacity Control General Configuration 76 21 Capacity Primary PID Loop 78 22 Capacity Secondary PID Loop 80 23 Anti Surge Capacity Decoupling Configuration 82 24 AINs Substitute PV 83 25 DINs Substitute PV 84 26 Reserved for Future Use 84 27 Interlock Bypassable Configuration 85 28 Permissive Bypassable Configuration 86 29 Modbus
21. 1711 UM002A EN P September 2012 129 Chapter6 SSCCOperation Accessing the Compressor Details Faceplates from the Operator Screen 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press bo on the main navigation toolbar to navigate to the Operator screen 3 Press topageforward or 4 to page backward as required to navigate to the Operator screen Compressor Map Overview page 3 shown here epuAEee88 Y 0 00 ASC 100 0 0 01 CV 100 00 004 Sec Tack 6 01 Cv 94 98 6 05 Cap 10 0 eos ME on JE 0 20 40 60 80 100 E d Compressor Sec Track Dist OP CLL 5 04 Details CV 15 02 lt 008000 E Compress Press susie to open the Compressor Details faceplate Details Base OPTrk ASCV Surge Surge uri Cond n Dcp CapV Config Test ES Head Calc Properties Head Calc Data Head Type 0 Ps Abs 25 48 O HpSim 1 Pratio Ts Abs 566 96 k Cp Cv 0 0004 Efficiency 0 785 Pd Abs 25 53 0 Fixed 1 Variable Calculated Head Values PolyExp Max 0 5000 HpSim 0 000 PolyExp Min 0 1000 Press Ratio 1 002 PolyExp Val 0 0000 Press Rise 0 05 Device Names and Device Selector The Device Operation amp Settings device selector on the Maintenance screen presents the devices by the device name From the device faceplates the names can be customized and even made blank If after customization the device names are changed and it be
22. 1769 OF4 7 Press to open the IO Module Detail page for example Analog Inputs Slot 3 1769 IF8 Ua Compressor Flow 6107 Suction Pressure 5160 Discharge Pressure amp Auxiliary Cntrl Sig 5348 Suction Temperature 6550 Discharge Temp 10003 MultiSignal A 86 MultiSignal B 2 En die RB ee Ad Rockwell Automation Publication 1711 UM002A EN P September 2012 169 Chapter8 Troubleshooting Digital Input Module Detail The Digital Input Module Detail screen is shown in Figure 53 Figure 53 Digital Input Module Detail Slot 1 1769 1016 I Compressor Run DI Extnl Rdy To Start 1 1 Reset PB Extnl Rdy To Start 2 2 Load Request PB Extnl Rdy To Start 3 3 Unload Request PB Extnl Rdy To Start 4 4 Hot Used Extnl Comp Trip 1 5 Hot Used Extnl Comp Trip 2 6 Not Used Extnl Comp Trip 3 T Not Used o Comp Trip 4 For each input channel the channel number and description are presented The channel descriptions on this screen are fixed and cannot be customized They reflect the allocated function for each channel The channel number is used as a status indicator for the individual channel Visual Indication Example Explanation oO Compressor Run Dl The green color indicates the input is energized logic 1 B Coniressdr marii The grey color indicates the input is de energized logic 0 The red color indicates a fault is reported l com pressor Run Dl P Digital Output Module Detail The Digital Output Module Detail scr
23. AIN Auxiliary Control Signal No Description Range Initial Value User configured Value 01 05 06 07 08 Channel Usage Configuration Choices 0or 1 0 Not configured 1 Configured for use The auxiliary control signal is optional Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choices 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or 1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering units 0 999999 If transmitter is a gauge transmitter enter the amount to convert to absolute value If the transmitter is an absolute transmitter enter 0 Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or1 0 No low level alarm not to be used 1 Yes low level alarm to be used 09 High Alarm Limit Value Engineering units 999999 999999 10 Low Alarm Limit Value Engineering units 999999 999999 Eo 11 Alarm Deadband Engineering units 0 999999 CNET 56 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 05 AIN Suction Temperature
24. Abs PolyExp Type 0 Td Abs 25 48 566 96 25 53 567 10 Fixed 1 Variable Calculated Head Values PolyExp Max 0 5000 HpSim PolyExp Min 0 1000 Press Ratio PolyExp Val 0 0000 Press Rise 0 000 1 002 0 05 Base ap OPTrk ASCV Surge Surge ES Cond ol P Dcp CapV Config Test Flow Element Base Compressor Base Press Abs 0 00 Press Abs Temp Abs 567 00 Temp Abs Qmax for 55018 Gas MW 0 2 Gas Z Flow Location 1 1 Suction Qs IGV Methods 2 Discharge Qd Map Uses IGV 3 Discharge Qdd O No 1 Yes 4 Alternate OP Min Limit 24 70 567 00 30 550 0 9890 0 20 00 Base OPTrk ASCV Surge Surge ES Map m Cond Me Dcp CapV Config Test X Axis SQ 24 Y Axis Head Pt 0 0 00 0 000 0 000 0 000 0 000 0 000 0 000 0 693 0 774 0 862 0 955 1 057 Head Map 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 OPTrk Base OPTrk ASCV Surge Surge ES Dcpl Cond Dcpl CapV Config Test OP Tracking Decoupling Max Limit 75 00 Trigger Pt Margin 5 00 Release Pt Rate sec 1 00 Use Decoupling 3 00 1 00 Decouple Inactive SSCC Operation Chapter 6 Configuration Features Head calculation properties security privilege required E or A Pressures and temperatures in absolute units Head calculation values Head calc configuration error indications A if present Compressor Details Faceplate Base Conditions tab Configuration Features Flow elemen
25. Compressor Map Example Y Axis Compressor Head Scale is configured automatically based on values for Surge Line X Axis Normalized Flow Scale is fixed at 0 100 CONAH 9i 20 40 60 80 100 P Margin Compressor Running Anti surge control along the MO control line limit C Head Minen G 20 an 60 0 100 0P Compressor Running 120 Anti surge valve closed ees OP tracking safely tothe right y gt 0 46 of the control limit line 0 72 Head 0 48 0 24 0 00 9 20 40 60 820 100 SLLvalue CLL value 3 t SCL value 9 i OP value lt gt OP Track Margin 102 Rockwell Automation Publication 1711 UM002A EN P September 2012 Surge Limit Line SLL Red line 10 segment plotted from the configured Surge Line values Control Limit Line CLL Green line shaped the same as the SLL and shifted to the right by the Total Margin in use Operating Point OP Yellow point plotted at X 0P value Y Head value Surge Control Line SCL Blue line shaped the same asthe SLL tracks the OP by the OP track margin SSCC Operation Chapter 6 Margin Control For the primary anti surge PID the setpoint is dynamic based on operating conditions and is automatically generated by the functional components of the algorithm The operator does not directly enter the setpoint However the operator can influence t
26. D 29 Operator Screen Overview oebsoeooxap de utes uiu Pepe P dde 30 Maintenance Screen Overview cele 32 Alarms Screen Overview ccc cece ce ceecccccceceneeeeees 33 WAPI eS SCIE n OVEL VIEW S uda Sebast usted Reba cakes 34 Trend Select Screen Overview eee 34 Interlocks Screen Overview 0 cece ee ccc cece cece eee eeaee 35 Permissives Screen Overview o 2x1 ete rre Bere E aceon bob a oes 36 Pel piscreen OVEEVIOM eriin ri Oei eR Ee dd a Eb ed 37 EINLISCOUEID as das eer ue os desu i boe ena A utet neta teat 38 U Ser LOC le erae A dV CERRO Metu Ep tu qd 39 User LO cOU tires tp unde eun ERO ut uM Sod bM Es 4 Change the User Password ja ucarccetninaeuderietaadariatedas 4 HMI Functions with Security Privileges 0 cece cece eee ee 43 Rockwell Automation Publication 1711 UM002A EN P September 2012 3 Table of Contents SSCC Configuration SSCC Operation Chapter 5 Parimeter JS ES conos ew eai doe ord dde p beu Reti bs dabas 51 Ole AEN Compressor FOW usse tek eda us hae n n bes er ted 53 02 AIN Suction Pressure 2 60055 eue Ea 54 O37 AIN Discharge D EeSSUEe 32s vestes cente tom E Rides omes 55 04 AIN Auxiliary Control SIonial a cesa acte te ERR mna 56 05 AIN Suction Temiperatile esscuteqo s Tiaeoos b Oen ES 57 06 AIN Discharge Temperitu asss eb rire 58 O7 AIN Multiuse Siena A ereere a ue 59 08 AIN Multi se Signal Bosse eter Ed Eoo eK bie 60 09 Digital Input Channel Co
27. Device Name Over range indicator EJ 55018 H 54000 4 Hi Alarm Limit PV Value in Use Unit of Measure Channel Fault indicator p Under range indicator MA Lo Alarm Limit peces cde hoes a F V from Input Mode Operation Substitute PV Nas PV value Engineering Unit Scale Input Signal raw count 0 10000 The analog input device supports two modes of operation 1 PV from Input and 2 Substitute PV Under normal operations the mode should be PV from Input This mode uses the measured input signal raw count 0 10000 and converts it to engineering units according to the configured scaling settings The scaled value is presented as the process value PV in use Substitute PV mode lets you to override the measured value and substitute in its place a desired engineering unit value This mode may be useful should a transmitter fail require maintenance or calibration Use of Substitute PV mode produces a warning Through configuration refer to parameter list 24 AINs Substitute PV the use of Substitute PV mode can be disallowed When disallowed the Substitute PV features are absent from the device operation graphic and the device mode will be PV from Input The mode operation buttons and Substitute PV value entry require security privileges maintenance engineer or administrator Rockwell Automation Publication 1711
28. ENSE cy 0 00 100 00 0 00 94 97 a PID Ea PID Track lt a 000080 m epuAmeeg Capacity Secondary Loop Capacity Primary Loop Loop Hot Used PV not Configured Loop Not Used PV not Configured a 000000 gt epunAmeeg Capacity Primary Loop Capacity Secondary Loop 100 00 400 00 Pd AuxPV PV SP 25 53 EU 240 00 Cv 0 00 10 01 96 or 100 PO ESSEN a 000008 Rockwell Automation Publication 1711 UM002A EN P September 2012 Operator Screen Margin Control Display Features e Anti surge margin information Operational Features e Press A marginincrement and margin decrement to adjust margin security privilege required 0 S M or E e Modify Base Max Margin and Margin Adjustment security privilege required M E or A Operator Screen Anti Surge Control PID Loops Overview Display Features e Overview of Anti surge control PID loops PV SP Output Mode e Anti surge secondary Override PID loop is only shown when configured Operational Features e Press PID to open individual PID loop faceplates for detailed PID loop operation and tuning Operator Screen Capacity Control PID Loops Overview Display Features e Overview of Capacity Control PID Loops PV SP Output Mode e Capacity PID loops are only shown when configured Operational Features e Press PID to open individual PID loop faceplates for detailed PID loop operation and tuning 31
29. Enter the absolute adjustment value For DegF transmitters set to 460 to convert to DegR For DegC transmitters set to 273 to convert to DegK Suction and discharge transmitters must be in the same units Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or 1 0 No low level alarm not to be used 1 Yes low level alarm to be used High Alarm Limit Value Engineering units 999999 999999 Low Alarm Limit Value Engineering units 999999 999999 CN Alarm Deadband Engineering units 0 999999 DEM Rockwell Automation Publication 1711 UM002A EN P September 2012 57 Chapter 5 Table 36 SSCC Configuration 06 AIN Discharge Temperature List 06 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 5 for discharge temperature The discharge temperature input is used for the following purposes e A variable in calculating the compressor head when variable polytropic exponent is configured e As temperature compensation in the operating point calculation when flow usage is Qdd The following table identifies the configuration parameters range limits and initial values Parameter List 06 AIN Discharge Temperature 01 05 06 07 08 Channel Usage Configuration Choices 0or 1 0 Not configured 1 Discharge temperature configu
30. Features aa e Banner with device name e Device state represented with descriptive word e Indicators for 10 Fault and Channel Not Configured For Use when conditions present e Visual indication of Input PV or Substitute PV modes Substitute PV Running Operational Features Input PV Mode e Use gt to choose between PV from Input or Substitute PV mode security privilege required M E or A H Res ES e In Substitute PV mode use state buttons to set substitute PV state security privilege required M E or A PV from Input Stopped Ly Digital Input Device Faceplate Configuration tab Display Features Compressor Run DI C fi i i bl di f ANCUS Configuration parameter values viewable regardless o DI 1 Active Status security privilege Use This Signal Configuration Features e Customize the device name security privilege required E or A e Configure channel usage active state and use of Substitute PV mode security privilege required E or A Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Table 71 Digital Output Device Faceplate Tab Sample Screen Description Digital Output Device Faceplate Operator tab a E Display Features n r e Banner with device name e Indication of device state Activated or Deactivated DeActivated e Indicator for 10 Fault when condition present e Visual indication of Program or Operator modes
31. For example if only 08 four points are defined enter them at parameters 8 11 9607 Pt 7 Pt 10 and prefill 09 parameters 1 7 960 Pt 0 Pt 6 0 0 10 11 12 Y axis Values Head 11 points for compressor surge map 0 100 13 Values represent Head expressed in simplified polytropic Head or pressure ratio as identified in 14 List 11 parameter 8 15 Values typically generated using the Rockwell Automation compressor toolset 16 Values must be ascending 17 Pt 0 lt Pt 1 Pt 1 lt Pt 2 Pt 8 lt Pt 9 Pt 9 lt Pt 10 18 When not all points are required pre fill the list as required For example if only four points are 19 defined enter them at parameters 19 22 Head Pt 7 Pt 10 and prefill parameters 12 18 0 0 0 for HpSim or 1 0 for Pratio 21 22 23 Inlet Guide Vane Values IGV 11 points for compressor surge map Applicable only for compressor 0 100 24 with inlet guide vanes IGV Values represent IGV position expressed in 96 open 25 Values typically generated using the Rockwell Automation compressor toolset 26 Values must be ascending 27 Pt 0 lt Pt 1 Pt 1 lt Pt 2 Pt 8 lt Pt 9 Pt 9 lt Pt 10 28 When not all points are required pre fill the list as required For example if only four IGV points are 29 defined enter them at parameters 30 33 IGV Pt 7 Pt 10 and prefill parameters 23 32 0 0 IGV Pt 0 Pt 6 30 31 32 33 Rockwell A
32. P September 2012 System Power Chapter 8 Troubleshooting This section covers topics to help troubleshooting the SSCC during commissioning or during its normal lifecycle The SSCC field signals should be connected to the marshaling terminals indicated on Chapter 3 of this manual All internal wiring is completed at the factory therefore signal troubleshooting is limited to checking the functioning of the power supplies circuit breakers and fuses This guide is not intended for troubleshooting field signals All field signals should be tested using the field loop drawings Make sure you have a set of system drawings before starting to troubleshoot Table 89 Troubleshooting Matrix Symptom Suggestions General power related symptoms If the system is powered from an AC source e Make sure 120 VAC is available at CBT e Make sure CB1 is in the On position If the system is powered from a DC source e Check voltage on 24VDC input power terminals 24V 1 24V 2 Controller fails to power up Check the suggestions for General power related symptoms above Check the voltage on terminals T 3 1 and TS3 2 24VDC Check the fuse 2A on TS3 1 PanelView fails to power up Check the suggestions for General power related symptoms above Check the voltage on terminals TS3 15 and T 3 16 24VDC Check the fuse 1A on TS3 15 Digital Inputs not working Check the suggestions for General power related symptoms above Check
33. PID track margin set to 8 Select Type is set to minimum compressor running and loaded primary PID loop output is min selected and at 35 secondary PID loop output is 40 and increasing If the secondary loop output increases above 43 3596 896 the secondary output is limited tracks at 4396 If the primary loop output decreases to 3296 the secondary loop tracking reduces to 40 32 896 Capacity Device Type and Location Choices 0 Capacity control not required show no device 1 Suction valve throttling used for capacity control 2 Inlet guide vane used for capacity control 3 Discharge valve throttling used for capacity control 4 Variable speed used for capacity control This setting is used to modify the location and representation of the capacity device on the Process Overview page of the Operator screen Open Slew Rate sec 0 999999 Limits the opening rate of the control value Normally the capacity control opening slew rate is set for slow to moderate opening rate Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 Table 50 Parameter List 20 Capacity Control General Configuration Continued Description Range Initial Value User configured Value Close Slew Rate sec 999999 Limits the closing rate of the control value 06 Normally the capacity control closing slew rate is set for slow to moderate closing rate Control Value Maximum Limit
34. Pens e ES e Pen values Color matches Pen d A 106 38 u i _ 4 38 38 Phi 4 33 38 PM X Axis time scale l4 Hn M mee p Cycles the Y Axis display scale for each Pen Trend Plot control buttons Pen Indicators The trend plot area is configured to display four minutes of trend data Trend data scrolls from right to left For each pen the trend legend identifies the variable the pen color and the current value Each pen indicators vertical position along the right edge of the plot area follows the current value of the pen The Y axis scale only presents one pen scale at a time To switch the Y axis scale use the next pen button to cycle through the available pens The color of the Y axis values follows the pen color The trend plot control buttons allow the user to scroll through trend data buffered by the display The functions for each button are described here Button Name Function Home Scroll trend plot back to earliest trend data in display buffer and Pause Scroll Left Scroll trend plot back 2 minutes and Pause T Pause Resume Iftrend plot is Live then Pause If trend plot is Paused then resume Live updates Scroll Right Scroll trend plot forward 2 minutes and Pause E End Scroll trend plot forward to most recent trend data and Resume Live update Rockwell Automation Publication 1711 UM002A EN P September 2012 157 Chapter6 SSCCOperation Trend Technical Specifications Trend Plot area X Axis Time scale 4 minutes fixed
35. Permissives Permissive Description string EorA Table 22 Parameter Configuration Screen popup Page Function Requiring Security Privilege User Roles Page 1 Parameter Configuration Restore button 0 S M Eor A Upload button EorA Download button EorA Edit Parameter button EorA Save button EorA Table 23 Hardware Status Screen popup Page Function Requiring Security Privilege User Roles Page 2 Controller Fault Status Details Fault Reset button 0 S M Eor Page 3 PanelView Plus Information Set Clock button EorA Exit to PanelView Config button EorA Table 24 Digital Input Device Screen popup Page Function Requiring Security Privilege User Roles Page 1 Operator Use Input PV button M Eor A Use Substitute PV button M Eor A Substitute PV state buttons M E or A Page 2 Configuration Disallow Substitute PV setting EorA Use this Signal setting EorA Device Description string EorA 44 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Table 25 Digital Output Device Screen popup Page Function Requiring Security Privilege User Roles Page 1 Operator Operator Mode button 0 S MorE Program Mode button 0 S MorE Output Command buttons 0 S MorE Page 2 Configuration Fail On setting EorA Device Description string EorA Table 26 Analog Input Device Screen popup Page Function Requiring Security Privilege User Roles
36. Press el This resets the alarm status and also resets the Minimum Flow Fallback condition returning the anti surge control strategy to normal All the alarm conditions are clear on the alarm list carry ve 178 Rockwell Automation Publication 1711 UM002A EN P September 2012 Configuration Errors Troubleshooting Chapter 8 The SSCC has built in a basic configuration error routine When a configuration error is detected a warning is generated Configuration errors should be cleared before running the compressor Table 100 Configuration Errors Configuration Error Head Calc Config Error OP Calc Config Error Surge Map Config Error Check the following One or more of the following configuration properties must be corrected Suction Pressure AIN configured for Use Ref List 2 Param 1 Discharge Pressure AIN configured for Use Ref List 3 Param 1 Gas ratio of Specific Heats 1 0 value 2 0 Ref List 11 Param 3 Polytropic Efficiency 0 0 value 1 0 Ref List 11 Param 4 If Variable Polytropic exponent is configured Ref List 11 Param 9 then Suction Temperature AIN configured for Use Ref List 5 Param 1 Discharge Temperature AIN configured for Use Ref List 6 Param 1 One or more of the following configuration properties must be corrected Flow AIN configured for Use value 1 2 3 or 4 Ref List 1 Param 1 Maximum Flow range normalization Qmax gt 0 0 Ref List 11 Param 7 Base
37. Publication 1711 UM002A EN P September 2012 Who Should Use this Manual Additional Resources Preface This manual provides a product and application overview installation instructions hardware description Human Machine Interface HMI operation instructions configuration instructions controller operation instructions Modbus configuration instructions and troubleshooting information for the Single Stage Compressor Controller This manual is intended for qualified personnel responsible for installing and operating the Rockwell Automation Single Stage Compressor Controller SSCC You should have previous experience with and an understanding of electrical terminology procedures required troubleshooting equipment equipment protection procedures and methods and safety precautions See safety related practices contained in publication NFPA 70E Standard for Electrical Safety in the Work Place These documents contain additional information concerning related products from Rockwell Automation Resource Description CompactLogix Controllers Specifications Technical Data publication 1769 TD005 Provides controller specifications CompactLogix Packaged Controllers Quick Start and User Manual publication IASIMP QS010 Procedures for using your CompactLogix packaged controller as well as additional reference information Logix5000 Controllers Common Procedures publication 1756 PM001 Provides information on developi
38. Screens with Default Settings Permissive Configuration x Permissive Configuration x Description Bypassable Invert Latched Description Bypassable Invert Latched Control Loops Ready y Extnl Rdy To Start 1 ad AntiSurge Viv Ready w Extnl Rdy To Start 2 w Capacity lGV Ready w Extnl Rdy To Start 3 w Extnl Rdy To Start 4 d Digital Inputs OK d Analog Inputs OK y Digital Outputs OK i Analog Outputs OK d rs eo EZ 43 op EZ Rockwell Automation Publication 1711 UM002A EN P September 2012 95 Chapter 5 96 SSCC Configuration Customizing Permissives From the configuration screen you may edit the permissive descriptions These represent string Tags in the HMI not the controller These tags are retentive and saved in the HMI memory You are encouraged to customize the external permissive descriptions on page 2 to provide a more functional description For example you may connect a Lube Oil Auxiliary Pump Running permissive and therefore change the associated permissive description e g Aux Lube Pump Run Editing the description requires security privileges Engineer or Administrator The description string tag limit is 20 characters Configuring Permissive Bypasses Each permissive has a configuration option for Bypassable The bypassable setting on this screen is the same as that configured in parameter list 28 Permissives Bypassable Configuration Changing the bypassable setting requires security privileges Engi
39. Serial Port Configuration 87 30 Application HMI related Configuration 88 access 89 action buttons 91 185 Index 186 parameters configure 92 download 92 edit 92 Modbus 159 restore 91 save 92 upload 91 view 92 password change 41 initial 38 requirements 38 39 permissive check and reset 114 configure bypass 96 definition 107 descriptions 113 management features 12 reset 114 status indications 113 toolbar icon status indications 112 permissive description edit 96 Permissives Configuration screen access 93 security privileges 44 Permissives screen description 36 security privileges 43 PID control features 11 loop mode 141 loop setpoint 142 manual control value 142 PID loop anti surge control 141 capacity control 106 141 configure 142 operation 141 PID Loop Device screen security privileges 46 PID Loop faceplate 141 plot area trend 157 plot control buttons trend 157 power distribution 16 power related symptoms troubleshoot 163 power up SSCC 17 processing analog input 10 analog output 11 digital input 10 digital output 10 product ID number activation 25 PV from input mode analog input 132 ready to start compressor indications 119 reset alarms 177 interlock 110 permissive 114 restore parameters 91 S sampling rate trend 158 save controller values to memory 93 HMI memory 93 parameters 92 security 38 default user 39 HMI 38 initial password 38
40. Surge Test button EorA DeActivate Surge Test button EorA Use Pos Surge for Test setting EorA Use RoC Surge for Test setting EorA Use Incip Surge for Test setting EorA Reset Trapped Data button EorA Rockwell Automation Publication 1711 UM002A EN P September 2012 49 Chapter4 Human Machine Interface Notes 50 Rockwell Automation Publication 1711 UM002A EN P September 2012 Parameter Lists Chapter 5 SSCC Configuration This section contains the steps required to configure the SSCC The SSCC can be applied to a variety of control requirements including anti surge control capacity performance control additional protection override controls as well as unit interlocks and permissives Because of the wide range of control capabilities there is a large amount of configuration choices which can be made in order to meet the requirements of the application Configuration choices have been organized into groups called parameter lists Thus the configurable parameters grouped together in a parameter list represent a device for example a transmitter or a control function for example a PID loop or a common theme for example the compressor surge map Each parameter list contains the parameter number description range and initial value A User configured Value column is also provided in each table for recording purposes To use this feature print the lists and record any values changed during configuration in this
41. Trip NotRun Unload Trip Pos Dev 100 00 Pos Dev 100 00 Dev Time sec 60 00 Dev Time sec 60 00 Surge Base OPTrk ASCV Surge Surge E3 Config Cond Map Dep CapV Config Test Multi Surge Trip Rate of Change Surge Quantity Rate amp sec 25 00 Time sec DB sec 10 00 Qty Accum 0 Time msec 200 Time Accum 0 Roc Avg s s 0 00 Total Surge Counter Positional Surge Surge Count 0 Threshold 2 00 E Dist from Srg 0 05 E Surge Head Base Map OPTrk ASCV Surge Surge Test Cond Dep CapV Config Test Surge Testing Surge Trap Data DeActivated Flow Ps Abs p E Ts Abs l Pd Abs Activate DeActivate Td Abs End SurgeTest when sti Ng Positional Surge w Head Rate of Chg Surge V EP Incipient Surge Data Accessing Device Faceplates OPTrk ASCV Surge Surge ES Compressor Details Faceplate Anti Surge Capacity Valve tab Configuration Features e Anti surge valve configuration properties slew rates control limits position deviation alarm settings security privilege required M E or A e Capacity calve IGV configuration properties slew rates control limits position deviation alarm settings security privilege required M E or A Compressor Details Faceplate Surge Configuration tab Configuration Features e Multi surge trip configuration properties security privilege required E or A e Rate of change and positional surge properties security privilege require
42. UM002A EN P September 2012 SSCC Operation Chapter 6 When the device is in PV from Input mode the Substitute PV value automatically tracks the scaled PV value This makes the transition to Substitute PV mode bumpless Analog Input Device Configuration Press Eg to display the Configuration page Many of the analog input channel configuration parameters may be adjusted on this page Figure 30 Analog Input Faceplate Configuration Page Close Screen E E3 Compressor Flow Edit Device Name Input Scaling Raw Input Scaled EU Scaling Configuration Maximum 10000 b 55018 Minimum 0 0 00 Has Extend Scaling i j Edit Units of Measure Square Root Extract M Units EL Alarm Confiq Alarm Configuration Has Hi Alarm w Hi Alarm Limit 54000 Has Lo Alarm Lo Alarm Limit 0 00 Alarm DB 0 00 Table 75 lists the configuration items displayed on the Analog Input Faceplate Configuration page and the corresponding parameter used for configuration The parameters listed in the table are contained in the 01 AIN Compressor Flow parameter list Table 75 Analog Input Faceplate to Parameter Cross Reference Faceplate Configuration Item Configuration Parameter Scaled EU Maximum 02 Eng Unit Scale Max EU Scaled EU Minimum 03 Eng Unit Scale Min EU Has Extend Scaling check box 05 Extrap Scaling 1 Yes Square Root Extract check box 04 Scaling 0 Linear 1 Sqrt Has Hi Alarm check box 07 H
43. Valve Capacity Valve IGV List 15 Parameter 11 List 20 Parameter 10 Pos Dev Alm DB 96 Pos Dev Alm DB 96 Anti Surge Valve Capacity Valve IGV List 15 Parameter 12 List 20 Parameter 11 Pos Dev Alm Time sec Pos Dev Alm Time sec From the device configuration you may edit the description and the units of measure These represent string tags in the HMI not the controller These tags are retentive and saved in the HMI memory For example you may want to include the device tag number in the description for example FCV 1007 AntiSurge Valve and set the units of measure for example Open String Tag limits are Description 34 characters Unit of Measure 6 characters Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Digital Input Device Faceplate The Digital Input Device faceplate provides a graphical interface to the operational and configurable behaviors of the digital input channels Digital Input Device Operation Press et to display the Operations page The following illustration details the features of the Device Operation page Figure 33 Digital Input Faceplate Operations Page Channel Not Configured Indicator Close Screen e gt M d External Ready To Start 1 4 Device Name Channel Fault Indicator p PV Value in Use PV from Input Input Signal State Mode Operation Substitute PV Substitute PV Cont
44. alarms Substitute PV mode to replace field signal with a substitute value Channel health monitoring and reporting Device faceplate on HMI Channel usage configuration not used used Input state polarity of signal Channel health monitoring and reporting Device faceplate on HMI Output state polarity of signal Operator mode for field device testing Channel health monitoring and reporting Device faceplate on HMI Rockwell Automation Publication 1711 UM002A EN P September 2012 Function Analog Output Processing Compressor Head Operating Point Surge Map Surge Detection Control Margin Operating Point Tracking Adaptive Tuning PID Controls Min Max Selector and Control Track Management Control Slew Rate and Override Limits Anti Surge and Capacity Decoupling Introduction Chapter 1 Features Device action air to open air to close Position monitoring option Operator mode for field device testing Channel health monitoring and reporting Device faceplate on HMI Calculates the head of the compressor as simplified polytropic head HpSim pressure ratio Pratio and pressure rise Prise Choice of HpSim or Pratio as head type for the surge map Configuration error and calculation fault reporting Calculates the operating point OP as a normalized compensated representation of flow compensated to base conditions of the surge map Supports four varieties of flow instrumentation for the
45. and configurable behaviors of the digital output channels Digital Output Device Operation Press to display the Operations page The following illustration details the features of the Device Operation page Figure 35 Digital Output Faceplate Operations Page Close Screen Surge Alarm Device Name e zx Mode Control Button ex Program g Mode Status Indication Channel Fault MEL DeActivated 24 3 Indicator Control Value in Use Activate DeActivate Operator Control Buttons The digital output device supports two modes of operation 1 Program and 2 Operator Under normal operations the mode should be Program In Program mode the application program and interlocks determine the control value CV in use When the device is in Program mode the operator CV value automatically tracks the CV value in use This makes the transition to Operator mode bumpless Operator mode is intended only for device maintenance and testing when the compressor is not running When in Operator mode the operator control buttons can be used to set the control value Use of Operator mode sets the permissive digital outputs OK to not ready When the compressor is running the device mode is automatically set to Program mode and the mode control button is not available When the compressor is not running the mode control button is presented on the screen Current Mode Mode Button Button Action Program N
46. battery status controller 166 buttons toolbar 29 C capacity control discharge throttling 100 inlet guide vanes 99 PID loop 106 141 signal status 101 speed setpoint to speed controller 100 suction throttling 99 capacity decoupling features 11 capacity valve position error alarm message 174 capacity IGV ready permissive 113 change password 41 clock set HMI 168 comm interface failure alarm message 174 communications interface Modbus 159 compact flash card 93 compressor control diagram 9 control mode 99 load 121 process diagram 97 running status conditions 120 Compressor Details Anti Surge and Capacity Valve page 150 Base Condition page 147 faceplate 146 Head page 146 OP Tracking and Decoupling page 149 Surge Configuration page 151 Surge Map page 148 Surge Test page 152 Compressor Details screen security privileges 47 compressor flow low alarm message 174 compressor flow overrange alarm message 174 compressor flow underrange alarm message 174 compressor head features 11 compressor head fault alarm message 174 compressor is running but run is not indicated on the compressor overview screen 180 compressor map X y plot 101 Compressor Map page 101 Compressor Overview page 97 compressor ready to start indications 119 compressor surge detected alarm message 174 compressor will not load 180 compressor will not start 180 configure analog input 133 ana
47. be packaged in anti static bags Do not remove these components from these bags until you are ready to install them e Controller modules are especially sensitive to electrostatic discharge pay special attention not to touch the module connectors or any exposed printed circuit board PCB components e Store all shipping materials especially anti static bags to re use if it becomes necessary to transport or ship any system components Unpack All items must be removed from their packaging and checked against the packing list Verify that all items are correct and contact Rockwell Automation if any discrepancies are found Before unpacking any items the packaging must be inspected for damage which may have occurred during shipment See the Inspection section If any packaging is damaged the package identifying marks box number crate number etc must be noted and communicated to Rockwell Automation The package must be stored in a suitable storage area in the condition it was received Rockwell Automation will contact the shipping agent who may request to inspect the damage The package must not be opened without the express written permission of Rockwell Automation Inspection e Visually inspect the cabinets for mechanical damage check the painted surfaces for scratches and abrasions e Check that the cabinet door opens and closes and that all latches operate smoothly e Check all internal components against the detai
48. column Table 30 identifies the parameter lists and provides a summary of the configuration parameters that make up the list Table 30 Available Configuration Parameter Lists Parameter List Name Summary of Parameters 01 AIN Compressor Flow on page 53 Usage engineering unit scaling and alarm configuration 02 AIN Suction Pressure on page 54 Usage engineering unit scaling and alarm configuration 03 AIN Discharge Pressure on page 55 Usage engineering unit scaling and alarm configuration 04 AIN Auxiliary Control Signal on page 56 Usage engineering unit scaling and alarm configuration 05 AIN Suction Temperature on page 57 Usage engineering unit scaling and alarm configuration 06 AIN Discharge Temperature on page 58 Usage engineering unit scaling and alarm configuration 07 AIN Multi use Signal A on page 59 Usage engineering unit scaling and alarm configuration 08 AIN Multi use Signal B on page 60 Usage engineering unit scaling and alarm configuration 09 Digital Input Channel Configuration on page 61 DI channel usage and signal state configuration 10 Digital Output Channel Configuration on page 63 DO channel control state configuration 11 Compressor Configuration Information on page 63 Base properties for the compressor map flow measurement gas properties head calculation method inlet guide vane usage Rockwell Automation Publication 1711 UM002A EN P September 2012 51 SSCC Configuration
49. compressor e Flow in suction e Flow in discharge no cooling inter stage or upstream of flow e Howin discharge downstream of inter stage or discharge coolers e Alternate signal used in place of flow special cases Configuration error and calculation fault reporting 10 segment surge map defines the surge limit line SLL Minimum flow fallback strategy on head calculation fault Option for inlet guide vane IGV adjustment methods Minimum IGV fallback on IGV position fault Dynamic compressor map on human machine interface HMI Compressor surge detection using e Positional surge detection OP falls below SLL e Rate of change surge OP drops rapidly beyond configured limits e Incipient surge Optional SurgeGard signal detection of impending surge Calculation of the control limit line CLL using configurable margin Margin based on offset and percentage methods Convenient increment and decrement margin features Automatic margin increment on surge detection Minimum base and maximum margin limits Calculates the surge control line SCL using OP tracking methods As OP increases above CLL SCL tracks OP by a track margin When OP decreases back towards CLL SCL decays at a track rate Configurable max limit and minimum limited by CLL Dynamic adjustment to PID loop tuning parameters ASC primary PID loop using configurable breakpoints and slopes When operating between breakpoints tuning value is at base value When operating b
50. confirmed compressor running status is determined These specific running determination methods are configured in 14 Run and Load Configuration on page 68 The confirmed compressor running status is annunciated on the Compressor Overview Operator page 2 screen In addition to this HMI annunciation the compressor running digital output DOUT channel 4 is energized for external indication usage Figure 27 Compressor Overview Running Status epuAmeeg Pe 250 E Tz 118 76 EU Td 123 44 z im In m C Dist OP CLL CV 100 00 incin Sr 30 62 Pos 100 00 a 4 O o000 ES Once reaching the running state the compressor is ready for loading Rockwell Automation Publication 1711 UM002A EN P September 2012 Compressor Load Unload SSCC Operation Chapter 6 After the compressor running condition is established and there are no compressor trip conditions the compressor is available to load Loading the compressor can be accomplished in one of the following ways based on configured options e Auto load on confirmed run Load is automatically triggered after the confirmed running condition described previously e Load push button Digital input channel 2 may be wired to an external push button to manually request compressor load e Load button on HMI Load button on Compressor Overview Operator screen is pressed to manually request compressor load The confirmed compressor load status is annunciated
51. e Press O to disable bypass for interlocks and permissives security privilege required M E or A e Press A to enable bypass for the configured Interlocks and permissives security privilege required M E or A e Use Y tochooseadeviceand press to open a Device Detail popup for AIN DIN AOUT DOUT PID Loop and Compressor Details Maintenance Screen Change Password Display Features e Access to login logout and change passwords Operational Features Pres 999 to log in with user security privileges e Press Q to log off return to default user with no security privileges e Press re to change the password for the current user security privilege required 0 S M E or A as applicable Maintenance Screen Localization Display Features e Language selection Units of measure selection Operational Features e Press the flag that represents the language choice for the HMI e Press for either Primary or Secondary units security privilege required E or A This selection switches the text for Units between the user configured primary and secondary units text strings Rockwell Automation Publication 1711 UM002A EN P September 2012 Table 8 Alarm Screen Pages Page Example Screen GFRAHKE 2 35 54 PM Multiple Surge Trip 2 35 51 PM Compressor Surge Detected 2 29 26 PM Multiple Surge Trip 2 29 14PM Compressor Surge Detected 2 26 27 PM Multiple Surge Trip 2 23 26 PM Compressor Surge De
52. for the surge limit line fallback to using the most conservative IGV position full open Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Transmitter signal lt 3 6 mA Analog input raw count lt 250 Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Transmitter signal lt 3 6 mA Analog input raw count lt 250 Rockwell Automation Publication 1711 UM002A EN P September 2012 175 Chapter8 Troubleshooting Table 99 Alarm Messages Continued Alarm Message Explanation of Condition Multiple Surge Trip Multiple surges have occurred within a configured time period As a result a compressor trip is generated Operating Point OP Fault Conditions exist i e transmitter fault or configuration errors that prevent calculation of the operating point As a result a compressor trip is generated Suction Press Overrange Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Suction Press Underrange Transmitter signal 3 6 mA Analog input raw count 250 Suction Pressure High Suction pressure high alarm limit Suction Pressure Low Suction pressure low alarm limit Suction Temp Overrange Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Suction Temp Underrange Transmitter signal 3 6 mA Analog input raw count 250 Suction Temperature High Suction temperature gt high alarm limit Suction Temperature Low Suction temperature
53. max selection and tracking Configuration properties for the primary anti surge PID loop This loop is always configured to control the anti surge valve Adaptive integral tuning parameters for the primary anti surge PID loop Adaptive proportional tuning parameters for the primary anti surge PID loop Configuration properties for the secondary anti surge PID loop This is the optional protection override PID loop which may be used to control the anti surge valve Capacity control and valve device properties including control value limits slew rates position deviation alarming Capacity PID loop min max selection and tracking Configuration properties for the primary capacity PID loop When capacity control is required this is the PID loop used to control the capacity valve device Configuration properties for the secondary capacity PID loop This is the optional protection override PID loop which may be used to control the capacity valve device Configures the use of decoupling between the anti surge and capacity controls Configure each analog input channel to allow disallow the use of substitute PV Configure each digital input channel to allow disallow the use of substitute PV Intentionally omitted from the HMI reserved for future use only Configure the bypass option for individual interlocks Configure the bypass option for individual permissives Configure set and read the configuration for the Modbus s
54. navigation toolbar 2 Press on the navigation toolbar The Trend Select screen appears as shown here epoucAEeeg Select Trend ASCOT Control ASCO2 Control Cap 1 Control Cap02 Control Analog Inputs Valve Control Compressor 3 Press A or Y tosclect the trend in the list that you want to view 4 Press to open the selected Trend Detail screen There are eight pre configured Trend Detail screens The following table contains an example and description of the variables available on each Trend Detail screen Rockwell Automation Publication 1711 UM002A EN P September 2012 153 Chapter 6 Trend Detail ASC01 Control ASCO2 Control Cap01 Control 154 SSCC Operation Description Variables Anti Surge Primary PID Loop variables Loop PV the calculated Operating Point value OP Loop SP the Surge Control Line value SCL Loop CV the PID output Control Value CLL value Control Limit Line value represents the minimum SP for the loop Anti Surge Secondary PID Loop variables if configured Loop PV Process Variable as configured Loop SP Setpoint Loop CV The PID output Control Value Capacity Primary PID Loop variables if configured Loop PV Process Variable as configured Loop SP Setpoint Loop CV The PID output Control Value Rockwell Automation Publication 1711 UM002A EN P September 2012 Example Screen ASCUT Control Monday October 24 2011 ASCGUZ Control Monda
55. occur in the Time Qty Accum 0 Time msec 200 over specified Time duration configured ls Time Accum 0 Roc Avg s s 003 live Rate of Change Value Total Surge Count Total Surge Counter Positional Surge 7 Surge Count 0 Threshold 2 00 Positional Surge and Counter E Distfrom Srg 11 39 configuration threshold and Reset button present distance from Surge 0P SLL This page provides access to configuration values pertaining to surge detection methods rate of change and positional multi surge trip and surge counters for the compressor Rockwell Automation Publication 1711 UM002A EN P September 2012 151 Chapter6 SSCCOperation Table 86 lists the configuration items displayed on the Compressor Details Surge Configuration page and the corresponding parameter lists and parameter numbers used for configuration Table 86 Compressor Details Surge Configuration Faceplate Information Parameter List Cross Reference Faceplate Configuration Item Parameter List Parameter Multi Surge Trip Quantity List 13 Param 08 Surge Trip Qty Multi Surge Trip Time sec List 13 Param 09 Surge Trip Time sec Rate of Change Surge Rate sec List 13 Param 10 Surge RoC Low 96 sec Rate of Change Surge DB sec List 13 Param 11 Surge RoC DB 96 sec Rate of Change Surge Time msec 12 Surge RoC Time msec Positional Surge Threshold 13 Positional Srg Margin 96 Compressor Details Surge Test
56. open String Tag limits are Description 234 characters Unit of Measure 6 characters Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Configur ation P age Standar d Tuning The following illustration details the features of the PID Standard Tuning Configuration page used with the anti surge secondary PID loop and both capacity PID loops Figure 40 PID Faceplate Standard Tuning Configuration Page 1 Close Screen e uu x Capacity Primary Loop Hiit Device Name Unit Of Measure PVEU EL CVEU Edit Units of Measure SP Config Loop Tuning SP Max Limit 60 00 Proportional 2 20 SP Min Limit 40 00 Integral 1 75 SP Inc Rate 0 10 Derivative 0 00 SP Dec Rate 0 10 Track PV in Manual yf Interactive Gain y SJ Setpoint Parameters Tuning Parameters Table 80 lists the configuration items displayed on the PID Loop Faceplate Standard Tuning Configuration page and the corresponding parameter lists and parameter numbers used for configuration Table 80 PID Loop Standard Tuning Configuration Parameter List Cross Reference Faceplate Configuration Item Security Parameter List Cross Reference List 19 Anti Surge Secondary PID Loop List 21 Capacity Primary PID Loop List 22 Capacity Secondary PID Loop SP Max Limit M EorA Param 04 SP Max Limit EU SP Min Limit M Eor A Param 05 SP Min Limit EU SP Inc Rate
57. property of their respective companies Preface Introduction Single Stage Compressor Controller Installation SSCC Hardware Description Human Machine Interface Table of Contents Who Should Use this Manual es eene 7 Additional Resources 0 ccc cece ccc c cee eeee eee eeseeneeeeees 7 Chapter 1 Product Descriptio ieser boqu Uo dada ctore Tap Det 9 Application OVVIE cuo cate vea bep ae Saee dediti mea tossed uis 9 Chapter 2 Single Stage Compressor Controller Components 13 Mechanical Installation 24522299 2d ducit Rhe t pod tv dart ob beu 14 Electrostatic Precautions eeeeeeeee ne 14 nes cC EE 14 Dispensere a ET BUR ced in ERE ott 14 Environmental Location Requirements 020e eee ee 15 OOS diac pendens audiat be tae eae heats 15 Mount the Enclosure eese 15 Power Distribution and Grounding 0 ce eee e cece eee ee 16 Single Stage Compressor Controller Power Up 0 00 ee 17 Chapter 3 CONO te inet ce eerste ae C ee eee EI UN eee aes 19 Digital Input eerren ea rrera E ENEE ven 20 Digital OUUTE 21 ANOS DOUS erneer ere a 22 Analos COutpilbSacuedo ae a EA E ATATEN 23 PanelView Plus Compact Graphic Terminal 24 Chapter 4 Activate the HT MP iiie bU LA beh Sota EE eed d 25 INAVICAUOMN estere piso sbootemduriies td cons Penne DUO P rtt ees cures 27 Navigation J O0lDE i dooo teme o d cERVU ne Lied reto EE FRE
58. rights reserved Printed in the U S A
59. that prevent calculation of compressor head As a result Head values are set to default values HpSim 0 0 Pratio 1 0 Prise 0 0 This condition will trigger the minimum flow fallback Compressor Head Fault Compressor Surge Detected Compressor surge detected by either Positional surge Operating point OP is below the surge limit line SLL value by more than the positional surge margin Rate of change The operating point decreased at a rate exceeding the configured rate of change limits As a result the offset and or percent margin in use are automatically increased Controller Failure Fault reported for the controller Digital Input Module Failure Fault reported for digital input module in Slot 1 Rockwell Automation Publication 1711 UM002A EN P September 2012 Table 99 Alarm Messages Continued Explanation of Condition Alarm Message Digital Output Module Failure Discharge Press Overrange Discharge Press Underrange Discharge Pressure High Discharge Pressure Low Discharge Temp Overrange Discharge Temp Underrange Discharge Temperature High Discharge Temperature Low External Trip 1 External Trip 2 External Trip 3 External Trip 4 Incipient Surge Minimum Flow Fallback Minimum IGV Fallback Multi Use Signal A Overrange Multi Use Signal A Underrange Multi Use Signal B Overrange Multi Use Signal B Underrange Troubleshooting Chapter 8 Fault reported for digital outpu
60. the parameter details table security privilege required 0 S M E or A e Press to upload values from the controller and store them in the HMI file memory security privilege required E or A e Press ds to download values from HMI file memory to the controller security privilege required E or A e Press B to save parameter value changes entered from the HMI to the HMI file memory security privilege required E or A e Press amp or Y totherightofthe parameter details table to choose a parameter e Press tothe right of the parameter details table to edit the value for a selected parameter security privilege required E or A This opens the on screen keypad for data entry Figure 9 Parameter Configuration Screen Components Parameter List Action Status A SELECT 11 Compressor Configuration Info OT Comp Base Temp Abs 5 567 10 Close Button List Selector Buttons Scroll Up Button 02 Comp Base Press Abs m 0 03 Ratio ofSpecificHeats 1 195 0 4 Edit Parameter Button 04 Polytropic Efficiency 0 1 0 785 0 05 Orifice Base Temp Abs 4567 0 06 Orifice Base Press Abs 247 0 v Scroll Down Button Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 Parameter List Actions The functions performed when using the parameter list action buttons are illustrated in Figure 10 and explained in detail in Ta
61. the voltage on terminals T 3 5 and TS3 6 24 VDC Check the fuse 1A on TS3 5 common power to all DIN channels Check the individual channel fuses 0 25A on TS1 Digital Outputs not working Check the suggestions for General power related symptoms above Check the voltage on terminals T 3 7 and TS3 8 24 VDC Check the f use 5A on TS3 7 common power to all DOUT channels Check the individual channel fuses 0 5A on TS2 Analog Inputs not working Check the suggestions for General power related symptoms above Check the voltage on terminals T 3 3 and TS3 4 24 VDC Check the fuse 1A on T 3 3 common power to all AIN channels Check the individual channel fuses 0 25A on TS1 Analog Output not working Check the suggestions for General power related symptoms above Note 24V DC power for AO channels are sourced from the controller power supply Check the individual channel fuses 0 254 on TS1 Rockwell Automation Publication 1711 UM002A EN P September 2012 163 Chapter8 Troubleshooting Hardware Status The Hardware screen on the HMI provides detailed status of the controller I O modules I O channels and access to the HMI configuration exit graphics The Hardware screen has three pages to support troubleshooting maintenance activities the SSCC hardware When the Hardware screen opens the last viewed page is presented to the user Table 90 Hardware Screen Pages Page Screen Examples Description 1 SSCC ES 9
62. to read these registers The map of Modbus registers is presented in the following table Where indicated the SSCC EU engineering unit value range is converted to the Modbus register range configured in parameter 2 Table 88 Modbus Holding Register Assignments Address DataType EU Range Service 40001 40002 40003 40004 40005 40006 40007 40008 40009 40010 40011 40012 40013 40014 40015 40016 40017 40018 40019 40020 40021 40022 40023 40024 40025 40026 40027 40028 40029 40030 40031 40032 40033 ASC Primary PID Loop Process Value Operating Point OP ASC Primary PID Loop Setpoint in Use ASC Primary PID Loop Control Value Compressor Flow input signal Suction Pressure input signal Suction Temperature input signal Discharge Pressure input signal Discharge Temperature input signal Incipient Surge input signal ASC Valve Position input signal CAP Valve IGV Position input signal Compressor Head HpSim or Pratio Surge Limit Line SLL Control Limit Line CLL Surge Control Line SCL ASC Primary PID Loop Setpoint Surge Map X Axis Pt 0 Surge Map X Axis Pt 1 Surge Map X Axis Pt 2 Surge Map X Axis Pt 3 Surge Map X Axis Pt 4 Surge Map X Axis Pt 5 Surge Map X Axis Pt 6 Surge Map X Axis Pt 7 Surge Map X Axis Pt 8 Surge Map X Axis Pt 9 Surge Map X Axis Pt 10 Surge Map Y Axis Pt 0 Surge Map Y Axis Pt 1 Surge Map Y Axis Pt 2 Surge Map Y Axis Pt 3 Surge Map Y Axis Pt 4 Surge M
63. use Signal B on page 60 Use the High Alarm of the configured channel for the incipient surge detection threshold 10 Valve Fail Direction Choices 0 Closed i e valve is air to open 1 Open i e valve is air to close Typically the anti surge valve is air to close and fails open This setting is used to generate the analog output signal direction from the control value which is always expressed as 96 open 11 Valve Position Deviation Alarm Deadband 96 When one of the multi signal analog input channels is configured for anti surge valve position feedback the controller supports a position deviation alarm This parameter sets the deadband limit for the alarm When the difference between the control value and position feedback exceed this deadband the deviation alarm timer is activated 12 Valve Position Deviation Alarm Time seconds This parameter is the preset for the deviation alarm timer If the position deviation remains active for this time the position deviation alarm is generated 16 ASC Primary PID Loop List 16 defines the configuration settings for the anti surge control primary PID loop This PID loop is always configured and used for anti surge control The process variable for this loop is always the calculated operating point OP value The setpoint for this loop is always the surge control limit SCL value Adaptive tuning is used for this loop refer to List 17 ASC Primary PID Loop Adaptive Integr
64. used 09 High Alarm Limit Value Engineering units 099999 999999 10 Low Alarm Limit Value Engineering units 999999 999999 B 11 Alarm Deadband Engineering units 0 999999 DEM 60 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 09 Digital Input Channel Configuration List 09 defines the usage and signal state for the all of the digital input channels The following table identifies the configuration parameters range limits and initial values Table 39 Parameter List 09 Digital Input Channel Configuration Description Range Initial Value User configured Value 01 Use Compressor Run Signal input DI Channel 0 0or1 0 No do not use this signal 1 Yes Use this signal for compressor run detection 02 Compressor Run State DI Channel 0 0or1 0 Compressor running state when input is Off 1 Compressor running state when input is On 03 Use Reset Push Button Signal Input DI Channel 1 0or 1 0 No do not use this signal 1 Yes Use this signal for Reset push button 04 Reset Push Button State DI Channel 1 0or 1 1 0 Trigger reset action when input is Off 1 Trigger reset action when input is On 05 Use Load Push Button Signal Input DI Channel 2 Oor1 0 No do not use this signal 1 Yes use this signal for Load push button 06 Load Push Button State DI Channel 2 0or 1 1 0 Trigger load request when input is Off 1 Trigger load request when in
65. used 09 High Alarm Limit Value Engineering units 999999 999999 10 Low Alarm Limit Value Engineering units 999999 999999 LR 11 Alarm Deadband Engineering units 0 999999 CE 54 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 03 AIN Discharge Pressure List 03 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 2 for discharge pressure The discharge pressure input is used for the following purposes e A variable in calculating the compressor head e As pressure compensation in the operating point calculation when flow usage is Qd or Qdd e As the process variable PV for the anti surge secondary override PID loop or capacity primary or capacity secondary PID loops if selected The following table identifies the configuration parameters range limits and initial values Table 33 Parameter List 03 AIN Discharge Pressure No Description Range Initial Value User configured Value 01 05 06 07 08 Channel Usage Configuration Choices 0or 1 1 0 Not configured 1 Discharge Pressure Usage should always be configured 1 Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choice
66. 00 00 3 400 00 Pd SP PY SP PV Capacity Secondary Loop 55 00 95 21 EU 350 00 320 00 EU Capacity Primary Loop apaci AGF cy DAG SB cy 0 00 52 87 000 JE 57 90 PV not Configured PD Begg PO crux ga OOO0006 EX There are no direct operation features on this page To operate or tune the loops use the PID button to open the individual PID loop faceplate More details on the PID faceplate are provided later in this chapter These two PID loop are managed together through a min max selector decoupler control override selector and a control limiter to create a final control value for the capacity control valve device These control features are illustrated in the following function diagram Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Tiped o Running gt AND Capacity Primary PID Configurable L Control AO Control Q Ps Pd or cop Limiter AuxCtrlPV Min Max Override Selector et Slew Rates From HMI elect Override CVmax Capacity Decouple True Configurable Secondary PID Q Ps Pd or Loop Control Track AuxCtrlPV Feedback Checking Interlocks Interlocks and permissives should be cleared prior to a compressor startup An interlock is a condition that needs to be normal or healthy in order to operate Permissives and Warnings while a permissive is a condition that needs to be healthy for the Ready to Start cond
67. 00 Pt 3 0 000 Pt 3 0 00 Pt 4 0 00 Pi 4 0 000 Pit 0 00 Pt 5 0 00 Pt S 0 000 PES 0 00 Pt amp 17 49 Pt 6 0 693 Pt 5 0 00 Pt 7 19 35 Pt 7 U0 774 Pt 7 0 00 Pi 22 35 Pt amp 0 852 Pt 8 0 00 Pt B9 25 85 Pt 89 0 955 Pt 8 0 00 Pt 10 32 80 Pt 10 1 057 P1 10 0 00 Compressor Surge Map Optional for Inlet X axis Normalized 0 Guide Vane Y axis Head units HpSim or Pratio applications This page provides access to configuration values that define the Compressor Details Surge Map Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Table 83 lists the configuration items displayed on the Compressor Details Surge Map page and the corresponding parameter lists and parameter numbers used for configuration Table 83 Compressor Details Surge Map Faceplate Information Parameter List Cross Reference Faceplate Configuration Item Parameter List Parameter X axis 960 Points 0 to 10 EorA List 12 Param 01 960 Pt 0 through List 12 Param 11 960 Pt 10 Y axis Head Points 0 to 10 EorA List 12 Param 12 Comp Head Pt 0 through List 12 Param 22 Comp Head Pt 10 IGV Points 0 to 10 EorA List 12 Param 23 Inlet Guide Vane Pt 0 through List 12 Param 33 Inlet Guide Vane Pt 10 Compressor Details OP Tracking and Decoupling Page Press ps to display the Compressor Details OP Tracking and Decoupling page The following illustration details the features of the page Fi
68. 11 UM002A EN P September 2012 SSCC Configuration Chapter 5 Customizing Interlocks From the configuration screen you can edit the interlock description These represent string tags in the HMI not the controller These tags are retentive and saved in the HMI memory You are encouraged to customize the external interlock descriptions on page 2 to provide a more functional description For example you may connect a lube oil low pressure switch interlock and therefore change the associated interlock description e g Low Lube Oil Press Editing the description requires security privileges Engineer or Administrator The description string tag limit is 20 characters Configuring Interlock Bypasses Each interlock has a configuration option for Bypassable The bypassable setting on this screen is the same as that configured in parameter List 27 Interlock Bypassable Configuration Changing the bypassable setting requires security privileges Engineer or Administrator An interlock is bypassed when 1 The interlock is configured as Bypassable and 2 Bypassis enabled on the Maintenance screen Permissive Configuration Screen The Permissive Configuration screen has two pages Page 1 contains permissives internal to the SSCC controller page 2 contains permissives external to the controller Use the screen navigation arrow keys at the bottom to navigate between the two pages Figure 12 Persmissive Configuration
69. 2s crore remet 134 Digital Input Device Faceplate 2i eee beer EE S ES 137 Digital Output Device Faceplate oos sssubut ead Spe tere pages 139 PED Loop Faceplates eene ave tacere EE AE S eet p eed 141 Compressor Details Faceplate c3 0uistary sae on eto ep EE Oa 146 A SUNG MM a er e a a E a E E 153 Using the Trend Detail SCreelibrerena vua eo depot ts d er zu ede 157 Chapter 7 Serra Port Conmourationa cect eeu Cb eae Dee epa 159 Modbus Holding RESISTE irren due che e eR TEODI HUE Rede ce Alen 160 Chapter 8 DY Se OW MTM nm 163 Llardware Statisecse el ERO tux MO RIEDERUM EDEN EE meee 164 Controler Statis Cice yaaa ch ote re E So Ruhuoysesees DaS 165 Controller Major and Minor Fault Status e 167 PanelView Maintenance c cece cece cece eee nne 168 D Y Mod ler qudd edente ditate wee arte Cete 168 Digital Input Module Detoll uio eet rd Pa E ERR epe 170 Digital Output Module Detalle ertt noe tee Eom 170 Analog Input Module Detail itte trou tr RE bee 171 Analog Output Module Detail 24 conteret bene mat 172 V ETIN E TT TT TCI E TET TTE EO C T TT 172 Managiip AIINS eode deat eek E AUG Up HeR d EE 173 PATI P MAIN DIC Aoi eae nek nee HS We Dr nete dT MED RN IRURE 177 Conhouration BEEORSSos receptis o eias eso aUe d ad ae 179 StAEtUDp or Operating ISSUES oaouios bert e Ra ote ebur i dante bp 180 Rockwell Automation Publication 1711 UM002A EN P September 2012 5 Table of Contents 6 Rockwell Automation
70. 3 SSCC Hardware Description Controller The SSCC hardware and software platform is the 1769 L23E QB1B CompactLogix system The controller comes preconfigured with sixteen digital inputs and sixteen digital outputs For the SSCC system two expansion 1769 Series I O modules are added for analog inputs 1769 IF8 and analog outputs 1769 OF4 Figure 4 CompactLogix Controller L23E Rockwell Automation Publication 1711 UM002A EN P September 2012 19 Chapter3 SSCCHardware Description Digital Inputs The SSCC has 16 digital inputs powered by 24V DC All inputs are prewired from marshalling terminal blocks TS1 to the module specific removable terminal blocks Table 2 Digital Input Channel Assignment and Wiring Notes e Accessories push buttons for use on channels 1 2 and 3 are not provided with the unit the customer must purchase and install accessories separately as required For each of these signals the equivalent functionality is provided on the graphic screens of the units HMI e Digital input signal function polarity is configurable for each channel e Each channel is configurable for use or not used Signals present on channels configured as not used are ignored 20 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Hardware Description Chapter 3 Digital Outputs The SSCC has 16 digital outputs powered by 24VDC All outputs are prewired from marshalling termin
71. 42 Temperature Transmitter in Compressor Suction Channel 5 43 44 Temperature Transmitter in Compressor Discharge Channel 6 Multi Use Signal A 45 46 Choose connection to Anti Surge Valve position Transmitter or Capacity Valve Inlet Guide Vane position Transmitter or Incipient Surge SurgeGard signal Channel7 Multi Use Signal B 47 48 Choose connection to Anti Surge Valve position Transmitter or Capacity Valve Inlet Guide Vane position Transmitter or Incipient Surge SurgeGard signal Notes e Each channel has configurable engineering unit scaling linearization type and alarm limits e Flow suction pressure and discharge pressure channels 0 1 and 2 represent the minimum required signals for anti surge control e Temperatures channels 4 and 5 are often optional but are required when flow is measured in discharge and the compressor has inter stage cooling or discharge cooling upstream of flow measurement e SurgeGard for incipient surge detection is sold separately Space is allocated in the panel for mounting and wiring to the system Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Hardware Description Chapter 3 Analog Outputs The SSCC has four analog outputs current 4 20 mA All outputs are prewired from marshalling terminal blocks TS1 to the module specific removable terminal blocks Table 5 Analog Output Channel Assignment and Wiring Channel 0 Anti Su
72. 7 Interlock Bypassable Configuration List 27 contains the bypassable configuration for each of the interlocks for the compressor When an interlock is configured as bypassable and bypasses are enabled the interlock is bypassed and will not initiate the compressor trip Normally the Interlock Configuration pop up screen is used to set the interlock bypassable configuration This parameter list is intended to allow this bypassable configuration to be saved to the non volatile file memory of the HMI For each interlock the bypassable configuration choice is 0 or 1 0 2 Not Bypassable 1 Bypassable The following table identifies the configuration parameters range limits and initial values Table 57 Parameter List 27 Interlock Bypassable Configuration No Description Range Initial Value User configured Value Spare Interlocks Choices 01 02 03 04 05 06 07 08 0or1 These six Interlock positions are not presently used in the SSCC application BEEN mewmewWi MEC E mewomewWi WE E mewomewWi 0 MEC E fermenting 0or1 These four Interlock positions are not presently used in the SSCC application EE Rockwell Automation Publication 1711 UM002A EN P September 2012 85 Chapter5 SSCC Configuration 28 Permissive Bypassable Configuration List 27 contains the bypassable configuration for each of the permissives for the compressor When a permissive is configured as bypassable and bypasses are enabled the permi
73. 80 at 2 Amps per second After 10 seconds the SP will reach the value of 280 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Table 49 Parameter List 19 ASC Secondary PID Loop Continued 08 09 Proportional Tuning value Gain Tuning value for the proportional action of the PID loop in units of gain Gain represents the percent control value per percent error For example to create a 296 change of output for each 96 error set the gain to 2 This representation is the reciprocal of proportional band Proportional Action based on PV or Error Choices 0or1 0 PV Proportional action is based on changes in the process variable 1 Error Proportional action is based on error When based on error the proportional action responds to changes in setpoint When based on PV the proportional action responds to changes in PV only and is not affected by setpoint changes Integral Tuning value Repeats minute 0 40 JR Derivative Tuning value seconds C MEN NN Interactive Tuning Choices 0or1 0 Non Interactive The proportional gain value does not interact with the integral or derivative contributions 1 Interactive The proportional gain is used to calculate the integral and derivative contributions The setting of 1 Interactive represents the traditional form of PID tuning behavior In other words increasing the gain also increases the integral and derivative
74. Activate DeActivate Operational Features e Use 2 and amp to choose between Program and Program Mode Operator mode security privilege required 0 S M or E e b i A mf E In Operator mode use gt and m to set output Compressor Irip DO amp value security privilege required 0 S M or E DeActivated m Activate DeActivate Operator Mode Digital Output Device Faceplate Configuration tab E Display Features Compressor Trip DO T e Configuration parameter values viewable regardless of ail On security privilege Configuration Features e Customize the device name security privilege required E or A e Configure device operation fail state Rockwell Automation Publication 1711 UM002A EN P September 2012 125 Chapter 6 126 SSCC Operation Table 72 PID Loop Faceplate Tab Sample Screen Description AntiSurge Primary Loop 100 00 Auto Mode AntiSurge Primary Loop 100 00 cv 43 72 0 00 m 100 00 39 51 EU BU 43 72 Manual Mode AntiSurge Primary Loop Unit Of Measure PVEU EU Proportional Integral OP 001 yo SCL 10 07 81 i BP2 5i Diff 10 06 Sz 2 Proportional Max i Base 0 20 Min i Integral Kcalc f Kcalc 100 00 Base 10 00 Anti Surge Primary PID Loop E Capacity Primary Loop Unit Of Measure PVEU EU CVEU SP Config Loop Tuning SP Max Limit 60 00 Proportional 2 20 SP Min Limit 40 00 Integral 1 75 SP Inc Rate 0 10
75. Capacityicv Ready Fi Digital Inputs OK Fi Analog Inputs OK Pa mintal A aa ir igital Outpu c La OK NS Fd Analog Outputs OK m eo gl GFA amp H Observations and Actions The unit permissive status on the navigation toolbar informs the user that e Permissives are not ready red diamond e Bypass is enabled yellow caution triangle Press the Permissive Icon to open the Permissives screen On page 1 of the Permissives screen Digital outputs OK is not ready This could be because A digital output is not in Program mode e The digital output module slot is not healthy Investigating the digital outputs revealed a digital output channel was in Operator mode The channel was returned to Program mode As a result the unit permissive status on the navigation toolbar now indicates All non bypassed permissives OK yellow square 114 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Permissive status Indications Observations and Actions Re examining the permissives status b Pa TN AN A E On page 1 all permissives are ready Fd control Loops Reacly Fd AntiSurge Viv Ready Fd CapacityiGV Ready Fi Digital Inputs OK Fi Analog Inputs OK Wd Digital Outputs oK E Fd Analog Outputs OK lt q lt a 9o E 4 4 TX A E 4 Al Extnl Rdy To Start 1 On page 2 the external ready to start 2 permissive is 9X Extnl Rdy To Start 2 not ready but the dimmed
76. Channel 0 2 Ps Suction Pressure AIN Channel 1 3 Pd Discharge Pressure AIN Channel 2 4 Aux Auxiliary Control Signal AIN Channel 3 The scaled engineering unit value is used for the PV of the PID loop and the engineering unit range of the analog input channel is used for the PID loop PV engineering units Setpoint EU 999099 0 990009 The setpoint for the PID loop This value can be set here or using the PID loop faceplate It is included here to allow it to be saved to the non volatile memory of the HMI with the other parameters Setpoint Tracks PV when Loop is in Manual Choices 0or1 0 No Setpoint remains at its last value 1 Yes Setpoint tracks the PV value when loop is in manual Setpoint Maximum Limit EU 999999 999999 Sets the maximum limit for the loop setpoint Setpoint Minimum Limit EU 999999 999999 Sets the minimum limit for the loop setpoint Setpoint Increase Limit EU sec 0 999999 10 Sets the increase ramp rate for the setpoint in engineering units per second For example if set to 0 1 and the SP is changed from 70 to 80 psi the SP in use will ramp from 70 to 80 at 0 1 psi per second After 100 seconds the SP will reach the value of 80 psi Setpoint Decrease Limit EU sec 0 999999 10 Sets the decrease ramp rate for the setpoint in engineering units per second For example if set to 2 and the SP is changed from 300 to 280 Amps the SP in use will ramp from 300 down to 2
77. Configuration Trend Select Screen Hardware Status ue Status Interlock Screen Device Configuration To Input Permissive Analog Screen Trend Output e Detail z Digital Help Input Screen Digital Output PID Loop Faceplate Compressor Details 28 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Navigation Toolbar Each main screen contains at least one page where pages are equivalent to displays In order to access a main screen press the corresponding button on the upper navigation toolbar epuAEee8 When a main screen contains multiple pages a page navigation bar is presented at the bottom of the screen as shown here When the screen has only one page the page navigation bar is not presented Left Arrow Number of Pages Right Arrow oa oo60o0 E The number of pages is represented by the number of dots presented in the center of the navigation bar The green dot indicates which page is presently shown on the screen Use the right arrow button to navigate forward and the left arrow button to navigate backwards through the pages of the screen Navigation forward from the last screen returns to the first screen and vice versa Rockwell Automation Publication 1711 UM002A EN P September 2012 29 Chapter 4 Human Machine Interface Table 6 Operator Screen Pages Page Example Screen s 30 FfRAROOB Wednesday Septembe
78. Derivative 0 00 SP Dec Rate 0 10 Track PV in Manual YW Interactive Gain d Other PID Loops PID Loop Faceplate Operator tab Display Features Banner with loop name e Indication of Loop mode e Values for SP PV CV e Vertical bar graph of PV with setpoint slider e Horizontal bar graph of CV e Visual indication of Program or Operator modes Operational Features e Use to choose between Auto and Manual mode security privilege required 0 S M or E e n Auto mode use SP value entry security privilege required 0 S M or E e n Manual mode use CV value entry security privilege required 0 S M or E PID Loop Faceplate Configuration Tuning tab Display Features e Configuration parameter values viewable regardless of security privilege Configuration Features e Customize the loop name and units for PV and CV security privilege required E or A Adaptive tuning parameters ASC primary PID loop Standard tuning parameters other PID loops e Setpoint configuration parameters other PID loops Rockwell Automation Publication 1711 UM002A EN P September 2012 Table 73 Compressor Details Faceplate Tab Sample Screen Description Compressor Details Faceplate Head tab Hea Base Ma OPTrk ASCV Surge Surge ES Head A Cond P Depi CapV Config Test Head Calc Properties Head Calc Data Head Type 0 Ps Abs 0 HpSim 1 Pratio Ts Abs k Cp Cv 0 0004 Efficiency 0 785 Pd
79. LL to the CLL This margin contributes a percentage of the SLL value towards the total margin Thus the lower the SLL value the smaller the percent margin contribution and the higher the SLL value the larger the percent margin contribution Combining the percent margin with the offset margin provides great flexibility in total margin determination The base percent margin represents the minimum percent margin that will be used The percent margin in use can be incrementally adjusted manually by the operator or automatically on surge detection Maximum Margin Limit This limit is applied individually to the offset margin in use the percent margin in Use as well as the calculated total margin in use Margin Adjustment Amount The margin in use can be incrementally adjusted by the operator or automatically when surge is detected This parameter sets the amount of adjustment Margin Adjustment Type When margin in use is incrementally adjusted this parameter specifies what form of margin is adjusted Choices 1 Offset margin in use 2 Percent margin in use 3 Both offset and percent margin in use Backup Margin The backup margin determines the limit for manual control of the anti surge primary PID loop If the distance between the operating point OP and the surge limit line SLL is less than the backup margin then the anti surge primary PID loop mode is forced to automatic to prevent the operator from dr
80. List 05 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 4 for suction temperature The suction temperature input is used for the following purposes e A variable in calculating the compressor head when variable polytropic exponent is configured e As temperature compensation in the operating point calculation when flow usage is Qdd The following table identifies the configuration parameters range limits and initial values Table 35 Parameter List 05 AIN Suction Temperature No Description Range Initial Value User configured Value 01 05 06 07 08 Channel Usage Configuration Choices 0or 1 0 Not configured 1 Suction temperature configured for use The suction temperature configuration is required when the flow usage is configured as Qdd Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choices 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 00r1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering units 0 999999 For internal calculations the temperature must be converted into absolute units
81. List 23 Param 02 DP1 Initiate Pt ASC EU Decoupling Release Pt 96 List 23 Param 03 DP2 Release Pt ASC EU Decoupling Use Decoupling check box List 23 Param 01 Use Decoupling 1 Yes Compressor Details Anti Surge and Capacity Valve Page Press ce to display the Compressor Details Anti Surge and Capacity Valve page The following illustration details the features of the page Figure 45 Compressor Details Anti Surge and Capacity Valve Page Close Screen Page Navigation Base Ja OPTrk ASCV Surge Surge X Cond P Depi CapV Config Test Head Defines the Opening and Closing rate limits Override CV applied AntiSurge Valve Valve Slew Rates Open wsec X 100 00 Close s sec 2 00 Control Limits CV Max 100 00 Capacity Valve IGV Valve Slew Rates Open v sec 10 00 Close s sec 10 00 Control Limits CVMax amp 100 00 Control output limited by these Min and Max when compressor is CV Min 0 00 CV Min 10 00 Override CV 100 00 Override CV 10 00 HotRun Unload Tripi HotRun Unload Trip Pos Dev 100 00 Pos Dev s 100 00 Dev Time sec 60 00 Dev Time sec 60 00 lues 96 0 e Not Running values Open e Unloaded or e Comp Trip Interlock Position Deviation Alarm Configuration parameters This page provides access to configuration of control behaviors control rates control limits and position alarms associated with the anti surge valve and the capacit
82. M Eor A Param 06 SP Inc Limit EU sec SP Dec Rate M Eor A Param 07 SP Dec Limit EU sec Track PV in Manual check box EorA Param 03 SP Track PV in Man 1 Y Proportional M Eor A Param 08 Proportional Gain Integral M Eor A Param 10 Integral Rpt min Derivative M Eor A Param 11 Derivative sec Interactive Gain check box EorA Param 12 Interactive Tuning 1 Y Rockwell Automation Publication 1711 UM002A EN P September 2012 145 Chapter 6 146 SSCC Operation Customize the Loop From the configuration page you may edit the description and the units of measure These represent string tags in the HMI not the controller These tags are retentive and saved in the HMI memory For example you may want to name the loop based on tag number and function for example PIC 1012 Discharge Press Control You may also set the units of measure if desired For example set the units for PV also used for SP to psia The control value of the PID loop is intended to represent a control signal as 0 10096 open String tag limits are Description 34 characters Unit of Measure 6 characters Compressor Details Faceplate The Compressor Details faceplate provides an interface to the many of the operational and configuration details associated with the compressor These details are organized into seven groups represented by tabs along the top of the faceplate Compressor Details Head Page Head to display the Compr
83. Mode Rockwell Automation Publication 1711 UM002A EN P September 2012 141 Chapter 6 142 SSCC Operation For the anti surge primary PID loop the application provides a mode protection feature to switch the loop from Manual back to Auto mode when the operating point is within a certain distance of the surge limit line This prevents the operator from driving the compressor into surge This protection feature is bypassed when surge testing is enabled The anti surge secondary PID loop and the capacity PID loops do not incorporate this mode protection When all configured loops are in Auto mode the control loops ready permissive is generated If operational procedures for the compressor require one or more of the configured loops to be in Manual mode at startup then this permissive may need to be configured for bypass Loop Setpoint When the PID loop is in Auto mode the setpoint of the loop may be adjusted security privilege required O S M or E Setpoint entry is limited by the configured SP Minimum and SP Maximum values When a new setpoint is entered the setpoint in use will adjust to the new target value at the configured SP Increase and Decrease limits For the anti surge primary PID loop the loop setpoint is determined by the application logic SCL value from the OP tracking function While the faceplate provides SP entry the application will over write any entered value from the HMI Manual Control Value When the
84. Page Surge Press test to display the Compressor Details Surge Test page The following illustration details the features of the page Figure 47 Compressor Details Surge Test Page Page Navigation Close Screen Ao n Mead Cond aP Dep Capv Config Test bad Surge Test Activation ae m controls and status von Ps Abs 23 50 Compressor Data to be Automatically ie a Ts Abs 566 96 captured when Surge is deactivates on Surge 5 DU See Detected OP and Head Activate Lei Send Srg p values plotted on the Choose which E eT 5 OP 38 17 Compressor Map methods are used to Josse iens y Head 0 351 End Surge Test and S ae s Live e Trap Surge Data BODIE SK Data 4 Reset Trapped Data Indicates if Data is Live or Trapped This page is used during surge testing the compressor Use this page to do the following tasks e Activate deactivate surge testing e Choose the surge methods used to end the test and trap data e Examine trapped surge data e Reset trapped data The above operations require security privilege engineer or administrator 152 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Trends The SSCC HMI includes several trend displays which graph key control and operating data on convenient time plots Follow these steps to navigate and select a particular trend display 1 Press ES to close any open pop up screens and return to a main screen showing the
85. Pages All Healthy GFARAAHGCCA SERAS OB V Multiple Surge Trip V External Comp Trip 1 V Operating Point Fit Fd External Comp Trip 2 Fd External Comp Trip 3 Fd External Comp Trip 4 E E 4m eo ES m Ow ES The Interlock screen has two pages Use the screen navigation arrow keys at the bottom to navigate between the two pages 108 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 On the Interlock screen each interlock has a visual status indication to identify whether the interlock is Normal Tripped Bypassed or First Out This table explains these visual indications Visual Indication Example Fd External Comp Trip 1 Prd External Comp Trip 1 External Comp Trip 1 External Comp Trip 1 Wf External Comp Trip 1 x External Comp Trip 1 Explanation The green check mark indicates the interlock status is normal healthy The red X indicates the interlock has tripped and latched The interlock was not the first out interlock Once tripped this indication remains until an interlock reset The red X indicates the interlock has tripped and latched The yellow highlight indicates the interlock is the first out Once tripped this indication remains until an interlock reset The yellow highlight indicates the interlock was first out The check mark indicates the interlock status is normal after the interlock reset was performed The yellow highlight remain
86. Pressure of Compressor Pbc gt 0 0 Ref List 11 Param 2 Base Temp of Compressor Tbc gt 0 0 Ref List 11 Param 1 Base Pressure of Flow Measurement Pbo gt 0 0 Ref List 11 Param 6 Base Temp of Flow Measurement Tho gt 0 0 Ref List 11 Param 5 One or more of the following configuration properties must be corrected Surge Map X axis Normalized Flow values 0 must be ascending Pt 0 lt Pt 1 Pt 1 lt Pt 2 Pt 8 lt Pt 9 Pt 9 lt Pt 10 Ref List 12 Param 1 to 11 Surge Map Y axis Compressor Head values must be ascending Pt 0 lt Pt 1 Pt 1 lt Pt 2 Pt 8 lt Pt 9 Pt 9 lt Pt 10 Ref List 12 Param 12 to 22 If Inlet Guide Vane Method is configured Ref List 11 Param 12 then Surge Map IGV values must be ascending Pt 0 lt Pt 1 Pt 1 lt Pt 2 Pt 8 lt Pt 9 Pt 9 lt Pt 10 Ref List 12 Param 23 to 33 Rockwell Automation Publication 1711 UM002A EN P September 2012 179 Chapter8 Troubleshooting Sta rtup or Operating Issues This section covers some of the issues that can be found during the compressor startup or operation process and the suggested actions for correcting the issue Table 101 Compressor Startup Operation Symptoms and Suggested Action s Symptom Compressor will not start Compressor is running but run is not indicated on the Compressor Overview screen Compressor will not load Digital input signal is wired to controller but functionality does not work Ana
87. Run Mode Memory 9 Controller Ok Used 89 0 C Battery Ok Bytes Free 57468 F 10 ok C Minor Fault C Major Fault ens ok 8 Slot 1 1769 1016 2 SSCC ES Controller Fault Status Major Fault Minor Fault C WO Fault C Serial Port Fault C Program Fault C Program Fault C Power Up Fault C Battery Fault C WatchDog Fault C WatchDog Fault C Nonvolatile Mem Fault 3 Hardware Screen Controller Status Display Features e Controller status indications Mode Controller Battery 1 0 System Minor Faults Major Faults and Ethernet e Memory usage statistics Operational Features e Use A or Y tocheckthestatus of the individual modules e Press toopena Module Detail popup for the chosen 1 0 module Hardware Screen Major Minor Faults Display Features e Detailed major fault and minor fault status Operational Features e Press 2 to reset major and minor faults security privilege required 0 S M E or A Hardware Screen PanelView Plus Maintenance Operational Features Press mi to set the controller clock time to the PanelView clock time security privilege required E or A 164 Rockwell Automation Publication 1711 UM002A EN P September 2012 Troubleshooting Chapter 8 Follow these steps to access the Hardware screen 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press of on the navigation toolbar The Maintenance sc
88. S ADVISED BY FACTORY Maximum Help Screens Sets the number of pages for the Operator screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Maximum Status Screens Sets the number of pages for the Hardware Status screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Maximum IO Cards Sets the number of IO modules presented in the IO module selector Hardware Status screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Bypass Enable Choices 0 Disable 1 Enable This parameter is presented in the list so that the current status of bypass enable disable can be saved to the non volatile file memory for archive To enable and disable the bypasses parameter 10 must be set to 1 and then use the Enable and Disable buttons on the Maintenance screen Has Bypass Choices 0 No Hide the Bypass Enable Disable buttons on the HMI 1 Yes Present Bypass Enable Disable buttons on the Maintenance screen of the HMI If you want to configure and allow bypassing of interlocks and permissives on the HMI then this parameter must be set to 1 l EMI EIN EMEN EN l l nt Bu NN Rockwell Automation Publication 1711 UM002A EN P September 2012 User configured Value SSCC Configuration Chapter 5 Parameter List Configuration Parameter lists are configured using the Parameter Configuration screen on the HMI Follow these steps to access the parameter lists on the Parameter Configuration screen 1 Press ES to close any open pop up sc
89. SCL Surge Control Line blue HE i OP Operating Point yellow point 6 06 Pri Control Capacity 0 amp Ev 1007 Control 0 20 40 60 380 100 Anti Surge Control MEES s sos a Compressor Suma ist OP 6 05 tail Im r nnl Distance between OP and CLL peters EVE 15 02 Dist lt 0 0 ASC Valve Opening Dist 0 0 ASC on Control Limit Line lt a 000000 E3 Dist gt 0 0 ASC Valve Closing Anti surge Controls asc 1000 lt V to Anti surge Valve Primary PID Control vs Tracking PID Loop Output Control Value Secondary PID Control vs Tracking PID Loop Output Control Value visible when loop s are configured Capacity Controls Cap 100 V to Capacity Valve Device Primary PID Control vs Tracking PID Loop Output Control Value Secondary PID Control vs Tracking PID Loop Output Control Value visible when loop s are configured Rockwell Automation Publication 1711 UM002A EN P September 2012 101 Chapter6 SSCCOperation Dynamic Compressor Map The dynamic compressor map provides real time presentation of the surge limit line control limit line surge control limit line OP tracking and the live operating point This visualization provides a clear view of where the compressor is operating relative to surge and control limits and how much margin is in use P g g g Further details of the compressor map are shown in the following illustration Figure 19 Dynamic
90. User Manual Allen Bradley Single Stage Compressor Control Catalog Numbers 1711 PO2NSSCCN12600C 1711 PO2NSSCCNAX600C 1711 PO2NSSCCN121000C 1711 PO2NSSCCN4X1000C ril rE T TA n a Le LS i 3 le E i ES 3 Allen Bradley RockwellSoftwae Automation Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment Safety Guidelines for the Application Installation and Maintenance of Solid State Controls publication SGI 1 1 available from your local Rockwell Automation sales office or online at http www rockwellautomation com literature describes some important differences between solid state equipment and hard wired electromechanical devices Because of this difference and also because of the wide variety of uses for solid state equipment all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable In no event will Rockwell Automation Inc be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment The examples and diagrams in this manual are included solely for illustrative purposes Because of the many variables and requirements associated with any particular installation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the e
91. Y y axis trend 158 Rockwell Automation Publication 1711 UM002A EN P September 2012 187 Index 188 Rockwell Automation Publication 1711 UM002A EN P September 2012 Rockwell Automation Support Rockwell Automation provides technical information on the Web to assist you in using its products At http www rockwellautomation com support you can find technical manuals technical and application notes sample code and links to software service packs and a MySupport feature that you can customize to make the best use of these tools You can also visit our Knowledgebase at http www rockwellautomation com knowledgebase for FAQs technical information support chat and forums software updates and to sign up for product notification updates For an additional level of technical phone support for installation configuration and troubleshooting we offer TechConnect support programs For more information contact your local distributor or Rockwell Automation representative or visit http www rockwellautomation com support Installation Assistance If you experience a problem within the first 24 hours of installation review the information that is contained in this manual You can contact Customer Support for initial help in getting your product up and running United States or Canada 1 440 646 3434 Outside United States or Canada Use the Worldwide Locator at http www rockwellautomation com support americas phone en html
92. active Dark Grey Flashing Inactive Light Grey Steady historical All the alarms defined in the SSCC are listed in the next table The table is sorted alphabetically by alarm message Table 99 Alarm Messages Alarm Message Explanation of Condition Fault reported for analog input module in Slot 3 Analog Input Module Failure Analog Output Module Failure Fault reported for analog output module in Slot 4 Deviation between control signal and position feedback gt deviation limit and duration AntiSurge Valve Position Error Aux Control Signal Overrange Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Aux Control Signal Underrange Transmitter signal lt 3 6 mA Analog input raw count lt 250 Auxiliary Control Signal High Auxiliary control signal gt high alarm limit Auxiliary Control Signal Low Auxiliary control signal lt low alarm limit Capacity Valve Position Error Deviation between control signal and position feedback gt deviation limit and duration Comm Interface Failure Fault reported for the Ethernet communication interface Compressor Flow High Compressor flow gt high alarm limit Compressor Flow Low Compressor flow lt low alarm limit Compressor Flow Overrange Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Compressor Flow Underrange Transmitter signal lt 3 6 mA Analog input raw count lt 250 Conditions exist i e transmitter faults
93. al blocks TS2 to the module specific removable terminal blocks Table 3 Digital Output Channel Assignment and Wiring Notes e All digital output channels are 24V DC sourcing outputs e Digital output signal function polarity is configurable per channel e Compressor trip interlock channel 0 is intended for connection to the compressor driver motor turbine etc to shutdown the compressor e Read to start permissive channel 1 is intended for connection to the compressor driver motor turbine etc as a permissive to start the compressor Rockwell Automation Publication 1711 UM002A EN P September 2012 21 Chapter 3 22 SSCC Hardware Description Analog Inputs The SSCC has eight analog inputs current 4 20 mA All inputs are prewired from marshalling terminal blocks TS1 to the module specific removable terminal blocks Table 4 Analog Input Channel Assignment and Wiring Input Configuration Options Channel O Compressor Flow 33 34 How Transmitter located Compressor Suction or Compressor Discharge or Alternate Signal when no Flow signal consult factory for advice Channel 1 35 36 Pressure Transmitter in Compressor Suction Channel 2 Discharge Pressure Pressure 37 38 Pressure Transmitter in Compressor Discharge Channel 3 Auxiliary Process Transmitter An optional signal that may be used for capacity control or anti surge override control Channel4 Suction Suction Temperature 41
94. al on page 72 and List 18 ASC Primary PID Loop Adaptive Proportional on page 73 for adaptive tuning configuration parameters The following table identifies the configuration parameters range limits and initial values The initial values for these settings will usually not require changing 70 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 Table 46 Parameter List 16 ASC Primary PID Loop 01 02 03 04 05 06 07 08 09 Description Range Initial Value User configured Value Setpoint Tracks PV in Manual Mode Choices 0 No 1 Yes Keep this parameter set to 0 The setpoint is always set by the surge control line SCL value Setpoint Maximum Limit Engineering Units 96 Operating Point Keep this parameter set to 100 The SCL calculation by operating point tracking has its own maximum limit for OP tracking Use that parameter to limit the maximum SCL and thus the setpoint for this loop See 13 Surge and Margin Configuration on page 66 parameter 16 Setpoint Minimum Limit Engineering Units 96 Operating Point Keep this parameter set to 0 The SCL calculation by OP tracking is always lower limited by the control limit line CLL value There is no need to specify any other limitations on the setpoint for this loop Setpoint Increment Rate Limit EU sec 0 999999 10000 Keep this parameter set to a large value The SCL is allowed to increa
95. and for manual automatic loading for the compressor Compressor running determination is normally based on the digital input DIN for compressor running when a DI channel is configured for use Compressor running determination can also optionally be base on the following conditions e Ahead threshold e An auxiliary control signal e g motor amps threshold e An on delay timer preset and off delay timer preset for confirmed run status The following table identifies the configuration parameters range limits and initial values Parameter List 14 Run and Load Configuration No Description Range Initial Value User configured Value 01 02 03 04 05 06 07 68 Automatically Load compressor on Run condition Choices 0or 1 0 No Yes Use Auxiliary Control Signal for Run determination Choices 0or 1 0 No Yes Auxiliary Control Signal Threshold for Running EU 999999 999999 When parameter 2 is set to Yes this parameter defines the threshold for the Run determination Run condition if AuxCntrlSig gt Threshold Example For a motor driven compressor the aux control signal analog input signal could be wired to a motor amps transducer If motor amps are greater than a set threshold then the compressor is running Use Head for Run determination Choices 0 No 1 Yes Head Value Threshold for Running EU When parameter 4 is set to Yes this parameter defines the threshold f
96. ap Y Axis Pt 5 Surge Map Y Axis Pt 6 160 Rockwell Automation Publication 1711 UM002A EN P September 2012 Modbus Interface Chapter 7 Table 88 Modbus Holding Register Assignments Continued Address DataType EU Range Service 40034 40035 40036 40037 40038 40039 40040 40041 40042 40043 40044 40045 40046 40047 40048 40049 40050 40051 40052 40053 40054 40055 40056 40057 40059 40060 Surge Map Y Axis Pt 7 Surge Map Y Axis Pt 8 Surge Map Y Axis Pt 9 Surge Map Y Axis Pt 10 ASC Secondary PID Loop Process Value ASC Secondary PID Loop Setpoint Target ASC Secondary PID Loop Setpoint in Use ASC Secondary PID Loop Control Value Capacity Primary PID Loop Process Value Capacity Primary PID Loop Setpoint Target Capacity Primary PID Loop Setpoint in Use Capacity Primary PID Loop Control Value Capacity Secondary PID Loop Process Value Capacity Secondary PID Loop Setpoint Target Capacity Secondary PID Loop Setpoint in Use Capacity Secondary PID Loop Control Value Capacity Valve IGV Control Output Total Margin in Use Surge Counter Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Rockwell Automation Publication 1711 UM002A EN P September 2012 161 Chapter7 Modbus Interface Notes 162 Rockwell Automation Publication 1711 UM002A EN
97. appearance indicates the FA Exin Ray To Start 3 signal is bypassed Fd Extn Ray To Start 4 Because it is bypassed this permissive is not required to be ready The compressor ready to start output signal is ready e lt a oe E Warnings The overall unit warnings status is presented on the Warnings button fourth from the left displayed on the navigation toolbar of any main screen egunAmeegu The three icon status indications for warnings are described in this table Warnings Icon Explanation of Warning status Recommended Action A Level 1 Preventing operation Check Warning screen page 1 A Level 2 Function disabled or bypassed Check Warning screen page 2 Rockwell Automation Publication 1711 UM002A EN P September 2012 115 Chapter 6 116 SSCC Operation To check the status of the individual warnings press the Warnings button on the navigation toolbar to open the Warnings screen Figure 25 Warnings Screens Examples G FARAAKRAED CF RAKED Level 1 Preventing Operation Level 2 Function Disabled Bypassed Hot Logged In jterlock and Permissive Bypassed Head Cale Config Error o Digital Input in Substitute PV mode OP Calc Config Error Analog Input in Substitute PV mode Surge Map Config Error Fallback to Fixed Polytropic Exponent surge Test ASC Mode protection bypassed um eo Ex 3 o6 E The Warnings screen has two pages Use the screen navigation arrow keys at the bottom to navigate between the two pages
98. as Alarm High 1 Yes Has Lo Alarm check box 08 Has Alarm Low 1 Yes Hi Alarm Limit value 09 High Alarm Limit EU Lo Alarm Limit value 10 Low Alarm Limit EU Alarm DB 11 Alarm Deadband EU Customize the Channel From the device configuration you may edit the description and the units of measure These represent string tags in the HMI not the controller These tags are retentive and saved in the HMI memory For example you may want to include the device tag number in the description for example FT 1007 Compressor Flow and set the units of measure for example acfm Rockwell Automation Publication 1711 UM002A EN P September 2012 133 Chapter 6 134 SSCC Operation String Tag limits are Description 34 characters Unit of Measure 6 characters Analog Output Device Faceplate The Analog Output Device faceplate provides a graphical interface to the operational and configurable behaviors of the analog output channels Analog Output Device Operation Press to display the Operations page The following illustration details the features of the Device Operation page Figure 31 Analog Output Faceplate Operations Page Close Screen e E e Mode control button EM Program E Channel Fault Mode status indication 100 00 9r7 E indicator Position Feedback 8896 7 if configured Controlled Variable 100 00 Operator CV value The analog output device supports two mod
99. ation Publication 1711 UM002A EN P September 2012 71 Chapter5 SSCC Configuration 17 ASC Primary PID Loop Adaptive Integral List 17 defines the adaptive integral tuning properties used for the anti surge control primary PID loop The adaptive tuning parameters include the following feaetures e A base tuning value used when operating between breakpoints e Tuning value minimum and maximum limits e Breakpoints and slopes used to calculate the adaptive tuning value based on operating conditions The following table identifies the configuration parameters range limits and initial values Table 47 Parameter List 17 ASC Primary PID Loop Adaptive Integral Description Range Initial Value User configured Value 01 Base Integral Kbase Repeats minute The base integral is the value used when operating within the breakpoints BP1 and BP2 02 Maximum Limit for Adaptive Integral Kmax Repeats minute The calculated adaptive integral is limited to this maximum value 03 Minimum Limit for Adaptive Integral Kmin Repeats minute 0 100 1 The calculated adaptive integral is limited to this minimum value 04 Breakpoint 1 BP1 20 0 The distance below negative the CLL where adaptive tuning calculation adjustment begins 05 Breakpoint 2 BP2 96 The distance above positive the CLL where adaptive tuning calculation adjustment begins 06 Slope 1 1 Repeat min 96 0 100 10 The slope used for adaptive tuning adjustme
100. base temperature 06 Compressor Flow Device Orifice Base Pressure Pbo 0 999999 Enter in absolute pressure units matching the absolute correction units of the pressure transmitters and the compressor base pressure 07 Max Flow Range used for surge map Flow normalization 0 999999 From the Rockwell Automation compressor toolset surge map definition 08 Head Type for surge map Choices 0or1 0 HpSim simplified polytropic Head 1 Pratio pressure ratio Pd Ps 09 Polytropic Exponent Calculation Type Choices 0or1 0 Fixed constant calculated from k and Peff 1 Variable calculated from actual pressures temperatures using log ratios 10 Variable Polytropic Exponent Max Limit 0 10 Used when polytropic exponent type set to Variable Sets the max limit for the calculated value 11 Variable Polytropic Exponent Min Limit 0to 10 Used when polytropic exponent type set to Variable Sets the min limit for the calculated value 12 Adjust Surge Map Using Inlet Guide Vanes Choices 0or 1 0 No use the surge map without adjustment 1 Yes use inlet guide vane adjustment technique 13 Inlet Guide Vane IGV Min Limit for Adjustment 0 100 Used when IGV adjustment technique is configured for use Sets the min limit for the IGV adjustment 14 Design Gas Molecular Weight MW 0 200 From compressor map for reference only not used in calculations 15 Design Gas Compressibility Z 0 2 From compressor map for reference
101. ble 52 Parameter List 22 Capacity Secondary PID Loop No Description Range Initial Value User configured Value 01 02 03 07 80 Process Variable Selection Choices 0 4 0 Not configured 1 2 Q Compressor Flow AIN Channel 0 2 Ps Suction Pressure AIN Channel 1 3 Pd Discharge Pressure AIN Channel 2 4 Aux Auxiliary Control Signal AIN Channel 3 The scaled engineering unit value is used for the PV of the PID loop and the engineering unit range of the analog input channel is used for the PID loop PV engineering units Setpoint EU 999099 0 990009 The setpoint for the PID loop This value can be set here or using the PID loop faceplate It is included here to allow it to be saved to the non volatile memory of the HMI with the other parameters Setpoint Tracks PV when Loop is in Manual Choices 0or1 0 No Setpoint remains at its last value 1 Yes Setpoint tracks the PV value when loop is in manual Setpoint Maximum Limit EU 999999 999999 Sets the maximum limit for the loop setpoint Setpoint Minimum Limit EU 999999 999999 Sets the minimum limit for the loop setpoint Setpoint Increase Limit EU sec 0 999999 10 Sets the increase ramp rate for the setpoint in engineering units per second For example if set to 0 1 and the SP is changed from 70 to 80 psi the SP in use will ramp from 70 to 80 at 0 1 psi per second After 100 seconds the SP will reach the value of 80 ps
102. ble 62 Figure 10 Parameter List Action Details Hestore successful x 11 Compressor Configuration In Y l Select List CURR FILE m 02 Comp Base Fress Abs 24 7 24 7 Parameter 03 Ratio of Specific Heats 1 795 1 795 4 04 Polytropic Efficiency 0 1 0 785 0 785 05 Orifice Base Temp Abs 557 567 D6 Orifice Base Press Abs 247 24 7 v Restore HMI Non Volatile Controller File Memory Table 62 Parameter List Actions Details Button Action Security Operation Performed on the Selected Parameter J Restore OS M EorA Updates the Parameter Details table screen values gl e Parameter names are read from the HMI file memory e CURR value is read from the controller read once not continuous e FILE value is read from the HMI file memory a Upload EorA Reads values from the controller and stores them in the HMI file memory tB e licking Upload does not update screen values e After an upload click Restore to view uploaded values on the screen Rockwell Automation Publication 1711 UM002A EN P September 2012 91 Chapter5 SCC Configuration Table 62 Parameter List Actions Details Continued Button Action Security Operation Performed on the Selected Parameter Writes values from the HMI file memory to the controller Save EorA Saves all the screen values for the current parameter list to the HMI file memory This function is norma
103. calculated by the PID loop Normally set to 10096 open but can be reduced if desired PID Control Value CV Minimum Limit 96 Open 0 100 The minimum limit imposed on the control value output calculated by the PID loop Normally set to 096 open but can be increased if desired PID Deadband EU 0 999999 A deadband in PV engineering units above and below the loop setpoint When the PV is within the deadband the output of the PID loop is held at its present value and not updated Rockwell Automation Publication 1711 UM002A EN P September 2012 Chapter 5 he configured 79 Chapter 5 SSCC Configuration 22 Capacity Secondary PID Loop List 19 defines the configuration settings for the capacity control secondary PID loop This PID loop is optional and must be configured for use using this parameter list The configuration parameters for this loop include the following settings e Selection ofa process variable PV signal for the loop e Setpoint and associated limits ramp rates and behaviors e Control settings direct reverse action CV limits deadband e Loop tuning configuration and values When this loop has been configured for use the loop output is available to the min max selection for the capacity control The selector chooses the configured min max output of primary and secondary capacity PID loop outputs The following table identifies the configuration parameters range limits and initial values Ta
104. calization Table 17 Alarm Screen Page Page 1 Alarms Table 18 Interlocks Screen Page Page 1 Internal Interlocks and Page 2 External Interlocks Table 19 Permissives Screen Page Page 1 Internal Permissives and Page 2 External Permissives Function Requiring Security Privilege User Roles Margin Adjust Type value M E or A Function Requiring Security Privilege User Roles Bypass Enable button M E or A Bypass Disable button M E or A Unit of Measure select EorA Function Requiring Security Privilege User Roles Alarm Acknowledge button 0 S M Eor A Alarm Acknowledge All button 0 S M Eor A Alarm Reset button 0 S M Eor Function Requiring Security Privilege User Roles Interlock Reset button 0 S M Eor A Function Requiring Security Privilege User Roles Permissive Reset button Not used permissives do not latch Rockwell Automation Publication 1711 UM002A EN P September 2012 43 Chapter4 Human Machine Interface Table 20 Interlocks Configuration Screen popup Page Function Requiring Security Privilege User Roles Page 1 Internal Interlocks and Interlock Bypassable select EorA Page 2 External Interlocks Interlock Description string EorA Table 21 Permissives Configuration Screen popup Page Function Requiring Security Privilege User Roles Page 1 Internal Permissives and Permissive Bypassable select EorA Page 2 External
105. cation 1711 UM002A EN P September 2012 41 Chapter4 Human Machine Interface 10 11 12 Press The on screen keypad appears Enter the Old Password Note Passwords are case sensitive The Change Password dialog box re appears Press New Password F3 The on screen keypad appears Enter the New Password Note Passwords are case sensitive EN The Change Password dialog box re appears ES The on screen keypad appears Press Enter the New Password again to confirm Note Passwords are case sensitive The Change Password dialog box re appears If you successfully changed the password the Main screen appears An error message is displayed to indicate when the password change was not successful Follow the guidance presented in the error message and repeat the procedure 42 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 HMI Functions with Secu rity The following tables list the functions on the HMI screens that require security Privileges User Roles are O Operator S Supervisor privileges and the corresponding user roles that can perform the function M Maintenance E Engineer A Administrator Table 15 Operator Screen Page Page 2 Compressor Overview Page 4 Margin Control Table 16 Maintenance Screen Page Page 1 Configuration and Settings Page 3 Lo
106. cation is in Program mode Use the key on the front of the controller to switch to Run mode The application is in Test mode Use the key on the front of the controller to switch to Run mode Description The controller is healthy This is the normal operating mode for the system The controller status is faulted A critical fault has occurred on the controller and it is not in operation Search for additional details under the major faults Description The controller battery is OK This is the normal indication for the system The controller batter is low and should be replaced Table 94 0 System Status Indication 5 to OK a 10 Not OK flashing green 4 0 Hot Respond flashing red VO Not Present Description All the 1 0 modules are running This is the normal indication for the system At least one 1 0 module is not running Check individual module status on the 1 0 Module Selector to identify a particular module Search additional details for individual 1 0 modules None of the 1 0 modules are running Check the levers on the top of each Compact 1 0 module and 1 0 end cap They should all be properly positioned to left to engage the connection to each other and the controller Restart the system If the problem persists contact Rockwell Automation for assistance There are no 1 0 modules configured in the system This indication is not expected to appear as the system is pre configured
107. comes difficult to identify the devices presented in the device selector the following list can be helpful to re orient and identify the devices The device selector presents the devices in a pre determined order The order and default names for each device are shown in Table 74 on page 131 Each time you navigate to the Maintenance screen from another main screen the device order resets to the start of the list at the device allocated for compressor flow 130 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Table 74 Order of Devices on the Device Selector Order Device Name default Description of Device 1 Compressor Flow AIN channel 0 allocated for Compressor Flow 2 Suction Pressure AIN channel 1 allocated for Suction Pressure 3 Discharge Pressure AIN channel 2 allocated for Discharge Pressure 4 Auxiliary Control PV Signal AIN channel 3 allocated for an additional process transmitter which can be used as a PV for control loops 5 Suction Temperature AIN channel 4 allocated for Suction Temperature 6 Discharge Temperature AIN channel 5 allocated for Discharge Temperature 7 Multi Signal A AIN channel 6 configurable usage 8 Multi Signal B AIN channel 7 configurable usage 9 Antisurge Control valve AOUT channel 0 allocated for Anti Surge Valve 10 Capacity Control valve AOUT channel 1 allocated for Capacity control device 11 Compressor Run DI DIN channel 0 allocated for Compresso
108. contributions The setting of 0 Non Interactive calculates the integral and derivative contributions independent of the proportional gain The integral and derivative are calculated as if they have an effective gain of 1 PID Loop Control Action a k a Direction Choices 0or1 0 Reverse Acting 1 Direct Acting This parameter determines the direction the output moves in consequence to the direction the PV moves Direct An increasing PV will cause the output to increase Reverse A increasing PV will cause the output to decrease PID Control Value CV Maximum Limit 96 Open 100 The maximum limit imposed on the control value output calculated by the PID loop Normally set to 10096 open but can be reduced if desired PID Control Value CV Minimum Limit 96 Open 0 100 The minimum limit imposed on the control value output calculated by the PID loop Normally set to 096 open but can be increased if desired PID Deadband EU 0 999999 A deadband in PV engineering units above and below the loop setpoint When the PV is within the deadband the output of the PID loop is held at its present value and not updated Rockwell Automation Publication 1711 UM002A EN P September 2012 Chapter 5 he configured 75 Chapter 5 Table 50 SSCC Configuration 20 Capacity Control General Configuration List 20 defines general properties for capacity control that are independent from the primary and secondary ca
109. d compressor control mode 99 log samples trend 158 login human machine interface 39 logout human machine interface 41 loop mode PID control 141 loop setpoint PID control 142 M Maintenance screen description 32 login 39 security privileges 43 major fault status 167 manage alarms 173 manual control value PID control 142 margin adjustments 103 configuration 104 in use values 104 parameters 104 Margin Control page 103 min max selector features 11 Rockwell Automation Publication 1711 UM002A EN P September 2012 minimum flow fallback alarm message 175 minimum IGV fallback alarm message 175 minor fault status 167 Modbus holding registers 160 interface 159 parameters 159 modify controller settings 92 mount SSCC enclosure 15 multiple surge trip alarm message 176 interlock 109 multi use signal A overrange alarm message 175 multi use signal A underrange alarm message 175 multi use signal B overrange alarm message 175 multi use signal B underrange alarm message 175 navigate HMI 27 not logged in warning 116 0 OP calc config error 179 warning 116 operating point features 11 operating point OP fault alarm message 176 operating point fault interlock 109 operating point tracking features 11 operation analog input 132 digital input 137 digital output 139 PID loop 141 operator screen descriptions 30 login 39 security privileges 43 override limits features
110. d M E or A Operational Features e Press the reset button to reset the compressor surge counter security privilege required E or A Compressor Details Faceplate Surge Test tab Display Features e Surge testing status and configuration e Live Trapped operational data from surge test Operational Features e Activate gt and Deactivate m surge test buttons security privilege required E or A e Choose from positional rate of change and incipient surge methods for surge test capture security privilege required E or A e Press Bl reset surge test data security privilege required E or A The device faceplates provide graphical detail of both operational and configurable features for a particular I O device PID loop or the compressor details To access the faceplates within the HMI follow these steps to navigate to the Maintenance screen and successfully open the faceplate of choice 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press of on the navigation toolbar The Maintenance screen appears Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 3 Press topageforward or 4 to page backward as required to navigate to page one of the Maintenance screen shown here epuAEBeeg Configuration Hardware 2 e E Bypass Interlocks amp Permissives e amp Device Op
111. device tag number in the description and identify the signal more clearly for example X A 1004 Surge Alarm String tag limits are Description 34 characters 140 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 PID Loop Faceplate The PID Loop faceplate provides a graphical interface to the anti surge and capacity control PID loops The PID faceplate has an Operations page and a Configuration page PID Loop Device Operation Press et to display the Operations page The following illustration details the features of the PID loop Operation page Figure 37 PID Faceplate Operations Page Close Screen Device Name Setpoint In Use PV 2554 ey Process Variable amp Units Mode Control Button At zm ILL MESA ant Value in Use ooo 100 00 CV 9 96 Setpoint Entry Auto Mode Nama Value Entry Manual Mode The PID loop is a Proportional Integral Derivative controller used for regulatory control applications The PID loop is used for both anti surge and capacity control within the SSCC system Loop Mode The mode buttons provide both control and indication of the Loop mode Mode Buttons Indication Description Operation available A Loop is in Manual None security privilege required 0 S M or E Ai M None security privilege required 0 S M or E A i Loop is in Manual Press 1 to switch to Auto Mode At M Press to switch to Manual
112. e copy to a compact flash memory card the normal HMI color graphics must be shut down to allow access the PanelView Plus file utilities During this time the HMI will be unavailable for compressor operation Follow these steps to shut down the HMI graphics security privilege will be required 1 Navigate to page 1 of the Maintenance screen 2 Press to display the Hardware Status screen 3 Scroll to page 3 f the Hardware Status screen for PanelView maintenance 4 Press gf to shutdown the HMI graphics Consult the PanelView Plus user manual for details on accessing the file utilities to copy the HMI application file to your compact flash card Interlock and Permissive The SSCC system has pre allocated input signals for use as interlocks and Customization permissives for the compressor These signals appear in the Interlocks and Permissive screens with initial names which may be customized Interlock Configuration and Permissive Configuration screens allow for customizing these signals Follow these steps to navigate to the Maintenance screen and open the Interlocks Configuration or Permissives Configuration screen 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press of on the navigation toolbar The Maintenance screen appears Rockwell Automation Publication 1711 UM002A EN P September 2012 93 Chapter5 SSCCConfiguration 3 Press topa
113. e distance above positive the CLL where adaptive tuning calculation adjustment begins Slope 1 1 Gain 96 0 100 2 The slope used for adaptive tuning adjustment below breakpoint 1 Slope 2 S2 Gain 96 100 100 0 05 The slope used for adaptive tuning adjustment above breakpoint 2 Rockwell Automation Publication 1711 UM002A EN P September 2012 73 Chapter 5 SSCC Configuration 19 ASC Secondary PID Loop List 19 defines the configuration settings for the anti surge control secondary PID loop This PID loop is optional and must be configured for use using this parameter list The configuration parameters for this loop include the following settings e Selection ofa process variable PV signal for the loop e Setpoint and associated limits ramp rates and behaviors e Control settings direct reverse action CV limits deadband e Loop tuning configuration and values When this loop has been configured for use the loop output is available to the min max selection for the anti surge control The selector chooses the configured min max output of primary and secondary ASC PID loop outputs The following table identifies the configuration parameters range limits and initial values Table 49 Parameter List 19 ASC Secondary PID Loop No Description Range Initial Value User configured Value 01 02 03 07 74 Process Variable Selection Choices 0 4 0 Not configured 1 2 Q Compressor Flow AIN
114. ease Rockwell Automation Publication 1711 UM002A EN P September 2012 103 Chapter6 SSCCOperation Primary Loop Pre configured e OP is the PV SCL is the SP Common Faceplate Features e PV value units and bar graph e SP value and slider indication e CV value and bar graph e Control Track indication e PID button to access Loop Faceplate detail 104 Margin Configuration The Margin Control page provides access to certain margin configuration properties from the configuration parameter list 13 Surge and Margin Configuration A cross reference between the operator page and the parameter list is included here Parameter List Cross Reference List 13 Surge and Margin Configuration Screen Configuration Item Security Offset Margin 01 Base Offset Margin 96 Percent Margin 02 Base Percent Margin 96 Maximum Margin 03 Max Margin Limit 96 Adjust Amount 04 Margin Adj Amount 96 Adjust Type 05 Adj 1 Ofst 2 Pct 3 Both Margin Increment Decrement The anti surge algorithm automatically increments the margin in use values whenever a surge is detected The margin in use values may also be manually adjusted using a and onthe screen security privilege required O S M E or A The adjustment amount and type are applied to these increments and decrements The margins cannot be decremented less than the configured base margins and cannot be incremented larger than the maximum margin limi
115. eeg Level 2 Function Disabled Bypassed Page 2 Function Disabled Bypassed warning Interlock and Permissive Bypassed Analog input in Substitute mode indicates that one or more of the configured analog input channels is using a indi substitute PV bypassing the actual input PV from the Fallback to Fixed Polytropic Exponent transmitter Digital Input in Substitute PV mode Rockwell Automation Publication 1711 UM002A EN P September 2012 117 Chapter6 SSCCOperation Screen Indications G FNAH B Configuration FY o Hardware Device Operation amp Settings Compressor Flow 4m eoo en 4 u E e o0 38 0 00 5019 0 E PV from Input Compressor Start and Stop Observations and Actions Navigation to the Maintenance Configuration Screen Using the Device Operation amp Settings selector field to browse the analog input devices Compressor Flow Suction Pressure Discharge Pressure Auxiliary Control Signal Suction Temperature Discharge Temperature Multi Use Signal A MultiUse Signal B Through browsing the analog input devices it is observed that the suction pressure input is in Substitute PV mode Check with operations and maintenance to identify if it is safe to operate the unit in this condition The SSCC is primarily responsible for anti surge and capacity control for the compressor Typically another controller or interlock system is used to start and stop the drive m
116. een is shown in Figure 54 Figure 54 Digital Output Module Detail slot 2 1769 0616 li Comp Trip interlock 8 Hot Used 1 Surge Alarm 9 Hot Used 2 System Trouble 10 Not Used IB ray To Start Permiss 11 Hot Used 4 Compressor Running 12 Hot Used 5 Compressor Loaded 13 Hot Used amp Not Used 14 Hot Used T Hot Used 15 Hot Used For each output channel the channel number and description are presented The channel descriptions on this screen are fixed and cannot be customized They 170 Rockwell Automation Publication 1711 UM002A EN P September 2012 Troubleshooting Chapter 8 reflect the allocated function for each channel The channel number is used as a status indicator for the individual channel Visual Indication Example Explanation i The green color indicates the output command is logic 1 to energize the Ly Comp Trip Interlock ned device P i i The grey color indicates the output command is logic 0 to de energize the 0 Comp Trip Interlock Mo device P i i j Comp Trip Interlock The red color indicates a fault is reported Analog Input Module Detail The Analog Input Module Detail screen is shown in Figure 55 Figure 55 Analog Input Module Detail Slot 3 1769 IF8 Ta Compressor Flow 5101 Suction Pressure 5160 Discharge Pressure amp Auxiliary Cntrl Sig 5348 Suction Temperature 5550 Discharge Temp 10003 MultiSignal A 86 MultiSignal B Sm on dtc RB c For each input channel the channel number input
117. eflect key operational controls indications and correspond to the unit s digital outputs The indications presented on the screen are detailed in Table 63 Table 63 Unit Status Indicator Descriptions Status Status Indicator and Description Ready Ready to Start DO channel 3 aay Not Ready to Start check permissives Ready to Start all permissives OK Trip Comp Trip Interlock DO channel 0 sm Not Tripped all interlocks OK Compressor Trip check interlocks Surge Surge Alarm DO channel 1 Normal no surge alarm Surge alarm activated Run Compressor Running DO channel 4 Not Running no Run condition detected Confirmed Run determination Load Compressor Loaded DO channel 5 Unloaded valves at override CV value Loaded valves released for control Trouble System Trouble Alarm DO channel 2 Normal d k a tn m c E m a i Lia ce System trouble hardware or device fault 98 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Load Unload Control Buttons The Load and Unload buttons provide both control and indication of the control mode for the compressor When unloaded the SSCC drives the control valves to their configured override position When loaded the SSCC is allowed to control the valves based on the configured PID regulatory controls The load unload modes and indications are detailed in Table 64 Table 64 Load Unload Control Button Descriptions and Operations Buttons Ind
118. el status 171 configure 133 operation 132 processing 10 PV from input mode 132 substitute PV mode 132 Analog Input Device faceplate 132 Analog Input Device screen security privileges 45 analog input in substitute PV mode warning 117 Analog Input Module Detail screen 171 analog input module failure alarm message 174 analog input signal is wired to controller but functionality does not work 180 analog inputs not working troubleshoot 163 analog inputs ok permissive 113 analog output channel assignment 23 channel status 172 configure 135 operation 134 processing 11 Analog Output Device faceplate 134 Analog Output Device screen security privileges 45 Analog Output Module Detail screen 172 analog output module failure alarm message 174 analog output not working troubleshoot 163 analog outputs ok permissive 113 anti surge control block diagram 10 calculated values 101 Compressor Overview page 97 features 11 PID loop 141 signal status 101 view PID loops 104 anti surge mode protection 142 Rockwell Automation Publication 1711 UM002A EN P September 2012 181 Index 182 antisurge valve position error alarm message 174 antisurge vlv ready permissive 113 application mode status 166 aux control signal overrange alarm message 174 aux control signal underrange alarm message 174 auxiliary control signal high alarm message 174 auxiliary control signal low alarm message 174
119. eraging the relevant quantity of samples When this calculated average RoC is lower than the low threshold value parameter10 a surge detection based on RoC is determined This condition remains until the average RoC is greater than the RoC low threshold plus RoC deadband parameter 11 Surge Detection Position Surge Margin Positional surge is detected when the operating point falls below the surge limit line by this amount Operating Point Track Margin 0 100 5 OP tracking establishes the surge control line SCL As the OP increases and moves to the right of the control limit line the SCL may track the OP by this track margin Operating Point Track Rate sec 0 100 1 When the OP decreases back towards the CLL this parameter determines the rate that the SCL is reduces back towards the CLL Operating Point Track Max SP Limit 96 0 100 75 This parameter sets the maximum limit for the SCL For example with OP track max limit set to 75 and the OP track margin set to 5 0 the SCL will track the OP by 5 up to an OP value of 80 At this point the SCL is tracking the OP at 75 If the OP increases beyond 80 the SCL remains limited at 75 Rockwell Automation Publication 1711 UM002A EN P September 2012 Chapter 5 User configured Value 67 Chapter 5 Table 44 SSCC Configuration 14 Run and Load Configuration List 14 defines the properties used for compressor running determination
120. eration amp Settings Compressor Flow A V an ooo ES Press a v to select the device you want to access in the Device Operation amp Settings selector list at the bottom of the screen 5 Press to open the selected device faceplate Accessing the PID Faceplates from the Operator Screen For convenience the PID faceplates and the compressor details faceplate can be accessed from certain Operator screens Follow these steps to access the PID faceplates 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press on the main navigation toolbar to navigate to the Operator screen 3 Press topageforward or 49 to page backward as required to navigate to the Operator screen Anti Surge PID Overview page 5 or the Capacity PID Overview screen page 6 shown here epuAmBeeg SPERANO SB AntiSurge Primary Loop AntiSurge Secondary Loop Capacity Primary Loop Capacity Secondary Loop 100 00 100 00 100 00 400 00 Pd Pd AuxPV SP PV SP PV SP PV SP PV 6 06 0 02 EU 62 00 25 53 EU 52 00 25 53 EU 240 00 0 04 EU ENSE cv Auto e cv WAGONS cv ENSE c 0 00 100 00 96 0 00 94 97 0 00 10 01 96 0 00 15 02 96 too a 100 or 100 of 100 PD egg PD Track PID MEE PD Track a 000080 gt a 000000 E 0 Note only those PID loops that are configured will be shown on these screens Press PID to open the desired PID faceplate Rockwell Automation Publication
121. erial port of the controller HMI application configuration properties consult factory before making any changes Configure whether bypasses are permitted for the unit Refer to the following sections for details on each of the parameter lists and the configuration settings and options for the parameters that make up each list Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration 01 AIN Compressor Flow Chapter 5 List 01 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 0 for compressor flow The compressor flow input is the primary input used to calculate the operating point OP value of the compressor The following table identifies the configuration parameters range limits and initial values Table 31 Parameter List 01 AIN Compressor Flow 01 05 06 07 08 Channel Usage Configuration Choices Qs suction flow 2 Qd discharge flow and no inter stage or discharge coolers 3 Qdd discharge flow downstream of any inter stage or discharge coolers requires suction and discharge temperatures to be configured 4 alt an alternate measurement signal is used instead of Flow special case requires special considerations to determine surge map Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Uni
122. es Setpoint tracks the PV value when loop is in manual Setpoint Maximum Limit EU 999999 999999 Sets the maximum limit for the loop setpoint Setpoint Minimum Limit EU 999999 999999 Sets the minimum limit for the loop setpoint Setpoint Increase Limit EU sec 0 999999 10 Sets the increase ramp rate for the setpoint in engineering units per second For example if set to 0 1 and the SP is changed from 70 to 80 psi the SP in use will ramp from 70 to 80 at 0 1 psi per second After 100 seconds the SP will reach the value of 80 psi Setpoint Decrease Limit EU sec 0 999999 10 Sets the decrease ramp rate for the setpoint in engineering units per second For example if set to 2 and the SP is changed from 300 to 280 Amps the SP in use will ramp from 300 down to 280 at 2 Amps per second After 10 seconds the SP will reach the value of 280 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Table 51 Parameter List 21 Capacity Primary PID Loop Continued 08 09 Proportional Tuning value Gain Tuning value for the proportional action of the PID loop in units of gain Gain represents the percent control value per percent error For example to create a 296 change of output for each 96 error set the gain to 2 This representation is the reciprocal of proportional band Proportional Action based on PV or Error Choices 0or1 0 PV Proportional action is ba
123. es a surge control algorithm which calculates a percent flow and determines the compressor s head simplified polytropic or pressure ratio If the percent flow is not adequate for the compressor s head the recycle valve will be opened The algorithm is used to generate a setpoint for the specialized PID loop The surge control algorithm executes in less than 25 ms The following simplified functional block diagram illustrates the features of the algorithm Secondary PID loop over rides and capacity control are not shown for clarity Rockwell Automation Publication 1711 UM002A EN P September 2012 9 Chapter1 Introduction 10 Figure 2 Anti surge Control Function Block Diagram Q nai Td Operating Ts Point hi Ps Calc Pd w wi OP Track CLL Margin Calc SLL Ps Pd Head Hp Lookup Calc Table m OP Adaptive Tuning PV 20mA 4mA SV Feedback OP Track Surge Count Functional aspects of the SSCC control strategy are summarized in the following table Table 1 Application Function Summary Function Analog Input Processing Digital Input Processing Digital Output Processing Features Channel usage configuration not used used and usage type Engineering unit calculation of process value PV with linear or square root extraction Absolute value correction factor for PVabs Press amp Temp signals Under range and over range alarms Configurable PV high and low
124. es of operation 1 Program and 2 Operator Under normal operations the mode should be Program In Program mode the application program and interlocks determine the control value CV in use When the device is in Program mode the operator CV value automatically tracks the CV value in use This makes the transition to Operator mode bumpless Operator mode is intended only for device maintenance and testing when the compressor is not running When in Operator mode the operator CV value can be entered from the screen Use of Operator mode sets the permissive analog outputs OK to Not Ready When the compressor is running the device mode is automatically set to Program mode and the Mode control button is not available When the compressor is not running the mode control button is presented on the screen Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Current Mode Button Action Program The compressor is running mode change not available Program Pressing the button switches the mode to Operator Operator Pressing the button switches the mode to Program The mode operation buttons and operator CV value entry require security privileges operator supervisor maintenance or engineer Analog Output Device Configuration Press Ex to display the Configuration page Configuration parameters relating to the valve devices can be observed on this page Note these configuration param
125. es on user roles which are defined in the following table Table 14 HMI User Roles and Passwords User Name Initial Password Security Privilege Abbr Operator operator 0 Supervisor supervisor S Maintenance maintenance M Engineer engineer E Administrator password A Notes 2 e Usernames ARE NOT case sensitive For example operator Operator and OPERATOR are all valid for the Operator user name e Passwords ARE case sensitive For example the default password for the Operator user is operator all lower case e User names cannot be changed 38 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 e Passwords can be changed Follow the instructions later in this section to change the password for a user role e The security model includes a default user which has no security privileges When the HMI is powered up or when logged out the security access returns to the default level e Security privilege abbreviations O S M E A are used in other parts of this manual to indicate the user role required to perform an action on the HMI User Login User login is available from either the Operator or Maintenance screen within the HMI Follow the appropriate steps to access the desired screen Log in from the Operator Screen 1 Press 4 to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press ont
126. es screen has 2 pages presenting the condition of the compressor permissives Table 12 Permissives Screen Pages Page Example Screen Description 1 29 eg Permissives Screen Internal Logic Permissives lt 7 4 no R of Display Features Fd control Loops Ready fe Bid Anti Surge Viv Ready e Internal permissives organized on page one FFA Capacityicv Ready First out permissive displayed in yellow color F Digital Inputs OK Operational Features d Digital outputs OK e Permissives are non latching so use of Reset button is not required 0 S M E or A Fd Analog Outputs OK a oo 2 Permissives Screen External Permissives 4 Jg 7X 9 9 m of DX Ae 2 Display Features d Extn Ray To Start 1 WT Bd Exini Ray To start 2 e External permissives organized on page two Bd Extni Ray To Start 3 First Out permissive displayed in yellow color Fi Extnl Rdy To Start 4 Operational Features e Permissives are non latching so use of Reset button is not required 0 S M E or A 36 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Help Screen Overview From any main screen press the Help icon on the navigation toolbar to open the Help screen The Help screen has eight pages presenting HMI operational help organized under a variety of topics Table 13 Help Screen Pages Page Example Screen Description 1 Help Screen Product Identification GPR eE
127. essor Details Head page The following Press illustration details the features of the page Figure 41 Compressor Details Head Page Page Navigation P Close Screen Base OPTrk ASCV Surge Surge gt lt Head cond P Depi CapV Config Test Head Calc Properties Head Calc Data Head Type 0 Ps Abs 23 51 Pressures and 0 HpSim 1 Pratio Ts Abs EEG 96 Temperatures k Cp Cv 1 195 Head Calculation TT Corrected to Efficiency 0 785 Pd Abs 55 Absolute Unit Configuration 579 06 solute Units PolyExp Type 0 Td Abs Parameters 0 Fixed 1 Variable Calculated Head Values PolyExpMax 05000 HpSim 0 951 Three forms of PolyExp Min 0 1000 PressRatio 2382 calculated Head PolyExp Val 0 2079 Press Rise 32 48 presented This page provides access to configuration details and calculated values pertaining to the compressor head calculation Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Table 81 lists the configuration items displayed on the Compressor Details Head page and the corresponding parameter lists and parameter numbers used for configuration Table 81 Compressor Details Head Faceplate Information Parameter List Cross Reference Faceplate Configuration Item Security Parameter List Parameter Head Type 0 HpSim 1 Pratio read only EorA List 11 Param 08 Head 0 HpSim 1 Pratio k Cp Cv EorA List 11 Param 03 Ratio of Specific Heats Efficiency EorA L
128. eters are not changed on this page See Table 76 Figure 32 Analog Output Faceplate Configuration Page Close Screen Edit Device Name y Antisurge Control valve CV Scaling CV Range Raw Output Maximum 100 00 bo 0 Control Valve Minimum 0 00 10000 Configuration Units 3 Fail Open il Properties Edit Units s GG Has Low Res AO Position Has Position Feedback d Position Alarm Position Deviation DB 100 00 Configuration Deviation Minimum Duration Sec 60 00 Properties Rockwell Automation Publication 1711 UM002A EN P September 2012 135 Chapter 6 136 SSCC Operation Table 76 lists the configuration items displayed on the Analog Output Faceplate Configuration page and the corresponding parameter lists and parameter numbers used for configuration Table 76 Analog Output Faceplate Configuration Parameter List Cross Reference Faceplate Configuration Item CV Range Maximum CV Range Minimum Fail Open check box Has Low Res AO check box Has Position Feedback check box Position Deviation DB Deviation Minimum Duration Sec Customize the Channel Parameter List Parameter None set in logic 100 096 Open None set in logic 0 096 Open Anti Surge Valve Capacity Valve IGV List 15 Parameter 10 List 20 Parameter 09 Valve Fail 0 Clsd 1 Opn Valve Fail 0 Clsd 1 Opn None not used None set in logic based on Multi Sig AIN usage for position feedback signals Anti Surge
129. eyond breakpoints tuning value automatically adjusted based on slopes PID controller features Range configured automatically based on PV selection Configurable setpoint management track in manual limits rates PID control direction direct reverse Variety of tuning options Manual mode override protection for anti surge PID PID faceplate on HMI When both the primary PID and a secondary override PID are configured the configured min or max control signal is selected Non selected PID loop tracks the selected PID loop by margin Control track mode reporting Control value CV features e Minimum and maximum limits Opening and closing slew rate limits e Override tripped not running value Decoupling between anti surge and capacity controls Prevents capacity controls from driving compressor into surge Rockwell Automation Publication 1711 UM002A EN P September 2012 11 Chapter1 Introduction Function Features Surge Test and Capture Built in surge test methods Used to validate surge map Traps operating data on surge detection Surge point presented on compressor map Interlock Management Four configurable external interlocks for compressor trip Management of external and internal interlocks with first out indication Configurable interlock bypass features Compressor trip output for interface to drive controller Permissive Four configurable external permissives for compressor ready to start Management Management of e
130. f the Key ID you entered is not valid the Activation screen remains on the HMI In this case verify the Key ID entered and correct if necessary If activation problems continue contact Rockwell Automation for further assistance If the Key ID is valid and the HMI activation is successful the toolbar is displayed at the top of the screen and the Application Information screen appears EM G FReAnOO Rockwell Automation Application Information Description Single Stg Compressor Cntrl Catalog Number 1711N A02N S SCC Version B 1 Serial Number COTD61D0 26 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Navigation The HMI application facilitates user navigation through a centralized icon toolbar The toolbar icons access the following eight main screens e Operator e Maintenance e Alarms e Warnings e Trends e Interlocks e Permissives e Help Each of the main screens accesses additional screens that allow you to fully configure the SSCC A navigational hierarchy is presented in Figure 8 on page 28 Rockwell Automation Publication 1711 UM002A EN P September 2012 27 Chapter4 Human Machine Interface Figure 8 HMI Screens Navigational Hierarchy Startup Screen Main Screens Popup Screens Popup Screens Application Operator Start Screen Maintenance Screen Parameter Configuration Alarm Screen Interlock Configuration Warning Screen Permissive
131. fig error 179 warning 116 surge test ASC mode protection bypassed warning 117 surge test and capture features 12 surge test enabled 176 system serial number activation 25 T toolbar HMI 29 touchscreen 24 trend data 157 display buffer samples 158 legend 157 log samples 158 plot area 157 plot control buttons 157 sampling rate 158 specifications 158 x axis 158 y axis 158 Trend Detail Analog Inputs screen 155 ASCOT Control screen 154 ASCO2 Control screen 154 Aux How PV screen 156 Cap01 Control screen 154 Cap02 Control screen 155 Compressor screen 156 Valve Control screen 156 Index Trend displays access 153 Trend Select screen description 34 troubleshoot analog inputs not working 163 analog output not working 163 controller fails to power up 163 digital inputs not working 163 digital outputs not working 163 PanelView fails to power up 163 power related symptoms 163 U unit status indicator description 98 unload compressor control mode 99 unpack SSCC 14 upload parameters 91 user name requirements 38 security 38 user roles security 38 security privileges 43 V view alarms 177 anti surge control PID loops 104 parameters 92 W warning check and reset 117 definition 107 descriptions 116 status indications 116 toolbar icon status indications 115 Warnings screen decription 34 wire size ground 16 X X axis trend 158 X y plot compressor map 101
132. for 1 0 connections Contact Rockwell Automation for assistance 166 Rockwell Automation Publication 1711 UM002A EN P September 2012 Troubleshooting Chapter 8 Table 95 Minor Fault Status Indication Description There are no minor faults reported for the controller Minor Fault This is the normal indication for the system There is at least one minor fault reported for the controller Navigate to Hardware Status page 2 for further details on minor faults Minor faults are recoverable and can be reset on page 2 If the fault persists contact Rockwell Automation for assistance E Minor Fault Table 96 Major Fault Status Indication Description There are no major faults reported for the controller Major Fault This is the normal indication for the system There has been a major fault reported for the controller and the controller has been stopped Some major faults are recoverable You can restart the system and observe if the fault is cleared or persists If the fault persists contact Rockwell Automation for assistance E Major Fault Table 97 Ethernet Status Indication Description The onboard Ethernet interface is operating normally E ENB Ok This is the normal indication for the system A fault is reported for the onboard Ethernet interface Restart the system If the problem persists contact Rockwell Automation for assistance B ENB Not OK Controller Major and Minor Fault Status Add
133. g Input Module Detail screen and AI channel 2 percent range value is less than the underrange threshold of 250 Maintenance is tasked with field troubleshooting and repairing of the transmitter signal Rockwell Automation Publication 1711 UM002A EN P September 2012 177 Chapter8 Troubleshooting Alarm status Indications Observations and Actions Maintenance determines the field transmitter is bad and replaces it The x analog input signal is back in normal range Slot 3 1769 IF8 1 Compressor Flow 6096 Suction Pressure 2554 Discharge Pressure 2 Auxiliary Cntrl Sig 5348 Suction Temperature 2571 Discharge Temp 98897 MultiSignal A 18 MultiSignal B o dm m t0 Bi Returning to the Alarm screen two of the alarms have cleared bi P A A e Theunderrange cleared with the successful transmitter replacement With the discharge pressure signal healthy the compressor head EA Wr nunc Pica oh calculation fault has also cleared 2 46 53 PM Compressor Head Fault i e The Minimum Flow Fallback is still presented as an active alarm as the 2 46 53 PM Discharge Press Underrange system is still using this fallback strategy The Alarm button is flashing pink indicating the alarm severity Fault 4 is cleared and can be reset a vis yx e eguAmeeg 2 45 53 PM Minimum Flow Fallback 2 46 53 PM Compressor Head Fault apo 245 53 PM Discharge Press Underrange The Alarm button color is white no alarms
134. geforward or 4 to page backward as required to navigate to page one of the Maintenance screen shown here epuABeeg Configuration Hardware s ES DE Bypass Interlocks amp Permissives Device Operation amp Settings Compressor Flow A v a ooo ES Press ES or amp to open the desired Configuration pop up screen example Permissive Configuration screen shown here Permissive Configuration ES Description Bypassable Invert Latched Control Loops Ready AntiSurge Vlv Ready Capacity IGV Ready Digital Inputs OK Analog Inputs OK Digital Outputs OK Analog Outputs OK a eo E SS AAS Note The Configuration buttons always contain a lock symbol as some of their configuration features invert and latched are set in the system design and cannot be changed Interlock Configuration Screen The Interlock Configuration screen has two pages Page 1 contains interlocks internal to the SSCC controller page 2 contains interlocks external to the controller Use the screen navigation arrow keys at the bottom to navigate between the two pages Figure 11 Interlock Configuration Screens with Default Settings Interlock Configuration x Interlock Configuration x Description Bypassable Invert Latched Description Bypassable Invert Latched Multiple Surge Trip v External Comp Trip 1 rad Operating Point Fit d External Comp Trip 2 w External Comp Trip 3 d External Comp Trip 4 wv 94 Rockwell Automation Publication 17
135. gure 44 Compressor Details OP Tracking Decoupling Page Page Navigation Close Screen Base OPTrk ASCY Surge Surge Haad cond P Paco Cav conii Test id nr OP Tracking Decoupling When set for Use Decoupling Determines Max Limit 7500 TrggerPt 3 00 Trigger and Release points Hold C Ue ms Margin 5 00 ReleasePt s 100 the Capacity controls prioritizing ici Rate sec 100 Use Decoupling the Anti Surge controller response CSCL Value Decouple Inactive Active when Decouple Triggered t OP CLL lt Trigger Pt Inactive when Decouple Released OP CLL gt Release Pt This page provides access to configuration values that define the OP tracking behavior and the anti surge capacity control decoupling behavior of the system Rockwell Automation Publication 1711 UM002A EN P September 2012 149 Chapter6 SSCCOperation Table 84 lists the configuration items displayed on the Compressor Details OP Tracking and Decoupling page and the corresponding parameter lists and parameter numbers used for configuration Table 84 Compressor Details OP Tracking Decoupling Faceplate Information Parameter List Cross Reference Faceplate Configuration Item Parameter List Parameter OP Tracking Max Limit 96 List 13 Param 16 OP Track Max SP 96 OP Tracking Margin 96 List 13 Param 14 OP Track Margin 96 OP Tracking Rate 96 sec List 13 Param 15 OP Track Rate 96 sec Decoupling Trigger Pt 96
136. he navigation toolbar The Operator screen appears 3 Press topageforward or 4 to page backward as required to navigate to page one of the Operator screen 4 Continue with Log In on page 40 Log in from the Maintenance Screen 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press of on the navigation toolbar The Maintenance screen appears 3 Press topageforward or 4 to page backward as required to navigate to page two of the Maintenance screen 4 Continue with Log In on page 40 Rockwell Automation Publication 1711 UM002A EN P September 2012 39 Chapter 4 40 Human Machine Interface Log In l Click 9 The Login dialog box appears Press The on screen keypad appears Enter the User name Note User names are not case sensitive Press The Login dialog box re appears Password Press i3 The on screen keypad appears Enter the Password Note Passwords are case sensitive Press The Login dialog box closes and the Main screen appears If login was successful the current user name shown on the main screen will reflect the new login Note If the current user does not reflect the new Login repeat steps 1 7 of this procedure SPRA SBa FR2AROCB Nednesday September 07 2011 7 20 05 PM NIP ree Step 1 Log In As Desired User Current User Current User Engineer Engineer 3
137. he setpoint through adjustment of the margin Margin adjustments are managed on the Margin Control page four of the Operator screen Key features of the Margin Control page are represented in the following illustration Figure 20 Compressor Map Page Example Base Margins d li e The minimum limit for 4 p N FA D amp the In Use values Renee Margin Increment coset Lek I Decrement buttons Maximum Margin Base InUse y y gt Mii gin OffsetMgn 6 00 6 00 Adjusts the In Use values e Maximum limit for In meee A v 0 00 20 00 Percent Mgn 2 Use and Total Margin M A dmt 100 4 Adjustment amount for Max Mogn 30 00 M Rs 1 increment decrement In Use Margins DW ome B j SLL Pct Mgn 6 00 set Mgn dui LUE 1457 X 2000 281 Pet Contribution Adjustment type 8 91 Total Mgn determines which margin Total Margin Results da 000600 gy Component s to adjust Contributions for offset 1 Offset Margin only and percent 2 Percent Margin only 3 Both Offset and Percent Margin j Fi A Surge Limit Line b A Surge Limit Line Surge Limit Line y Control Limit Line Control Limit Line Control Limit Line Offset Margin Only Percent Margin Only E Offset and Percent Margin Same margin for all Margin varies Total Margin varies operating conditions 0 at minimum conditions Offset value at minimum Increases with SLL conditions Increases with SLL as operating conditions incr
138. i Setpoint Decrease Limit EU sec 0 999999 10 Sets the decrease ramp rate for the setpoint in engineering units per second For example if set to 2 and the SP is changed from 300 to 280 Amps the SP in use will ramp from 300 down to 280 at 2 Amps per second After 10 seconds the SP will reach the value of 280 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Table 52 Parameter List 22 Capacity Secondary PID Loop Continued 08 09 Proportional Tuning value Gain Tuning value for the proportional action of the PID loop in units of gain Gain represents the percent control value per percent error For example to create a 296 change of output for each 96 error set the gain to 2 This representation is the reciprocal of proportional band Proportional Action based on PV or Error Choices 0or1 0 PV Proportional action is based on changes in the process variable 1 Error Proportional action is based on error When based on error the proportional action responds to changes in setpoint When based on PV the proportional action responds to changes in PV only and is not affected by setpoint changes Integral Tuning value Repeats minute 0 40 JR Derivative Tuning value seconds C MEN NN Interactive Tuning Choices 0or1 0 Non Interactive The proportional gain value does not interact with the integral or derivative contributions 1 Interactive The proport
139. ication Description Button Operation Available ad Unload mode Valve control set to None security privilege required 0 S M or E noad Load override CV value Load mode Valve control released for None security privilege required 0 S M or E regulatory control Unload Load mode Valve control released for Press VEU to switch to Unload mode regulatory control Capacity Control Visualization When capacity control is configured the capacity control type is visualized on the Compressor Overview page The various capacity configuration options and visualization arrangements are detailed in the following illustrations Figure 14 Capacity Control Type Suction Throttling Example GFA S Ps 25 46 EU Pd 2552 EU Ts 106 898 EU Td 107 07 EU Qs 0 00 EU Dist OP CLL 606 Unload Load nv ELCHE SARARIR H CV 10 00 CV 100 00 eee Pos 10 22 Pos 1022 Pos 99 95 CV Control Valve Open Pos Position Fdbk if configured q TIGRO mp Figure 15 Capacity Control Type Inlet Guide Vanes Example sapnas Ps 2547 zu CV 10 00 pg 2553 Ts 10698 gu Pos 1021 Td 107 07 EU Qs 0 00 EU Lb CV 10 00 Pos 10 30 Aux Ctrl P 0 04 EU Dist OP CLL CV 100 00 6 06 Pos 9 96 CV Control Valve Open Pos Position Fdbk if configured amp 0 0000 L5 Rockwell Automation Publication 1711 UM002A EN P September 2012 99 Chap
140. ignal Input DI Channel 11 0or 1 0 No do not use this signal 1 Yes use this signal for Ready To Start 4 condition 16 External Ready To Start 4 State DI Channel 11 0or1 0 Ready To Start state when input is Off 1 Ready To Start state when input is On 17 Use External Compressor Trip 1 Signal Input DI Channel 12 0or1 0 No do not use this signal 1 Yes use this signal for compressor Trip 1 condition 18 External Compressor Trip 1 State DI Channel 12 0or1 0 Compressor Trip state when input is Off 1 Compressor Trip state when input is On 19 Use External Compressor Trip 2 Signal Input DI Channel 13 0or1 0 No do not use this signal 1 Yes use this signal for compressor Trip 2 condition 20 External Compressor Trip 2 State DI Channel 13 0or1 0 Compressor Trip state when input is Off 1 Compressor Trip state when input is On 21 Use External Compressor Trip 3 Signal Input DI Channel 14 0or1 0 No do not use this signal 1 Yes use this signal for compressor Trip 3 condition 22 External Compressor Trip 3 State DI Channel 14 0or1 0 Compressor Trip state when input is Off 1 Compressor Trip state when input is On 23 Use External Compressor Trip 4 Signal Input DI Channel 15 0or1 0 No do not use this signal 1 Yes use this signal for compressor Trip 4 condition 24 External Compressor Trip 4 State DI Channel 15 0or1 0 Compressor Trip state when input is Off 1 Compressor Trip sta
141. ion E 28 Compressor Loaded DOUT channel 5 allocated for optional Compressor Loaded status indication 29 AntiSurge Primary Loop Anti Surge Primary PID Loop allocated to pre configured algorithm to control Operating Point OP as PV relative to Surge Control Line SCL as the SP Controls the Anti Surge valve 30 AntiSurge Secondary Loop Optional Anti Surge Secondary PID Loop Configurable PV choice Used as over ride PID in a Max select arrangement with the Anti Surge Primary PID Loop 31 Capacity Primary Loop Optional Capacity Primary PID Loop Configurable PV choice Controls the Capacity control valve IGV 32 Capacity Secondary Loop Optional Capacity Secondary PID Loop Configurable PV choice Use as over ride PID in a Min Max select arrangement with the Capacity Primary PID Loop 33 Compressor Details Compressor configuration and information details popup Rockwell Automation Publication 1711 UM002A EN P September 2012 131 Chapter 6 132 SSCC Operation Analog Input Device Faceplate The Analog Input Device faceplate provides a graphical interface to the operational and configurable behaviors of the analog input channels Analog Input Device Operation Press et to display the Operations page The following illustration details the features of the Device Operation page Figure 29 Analog Input Faceplate Operations Page Channel Not Configured Indicator Close Screen e E Compressor Flow
142. ion Information List 11 defines general properties for the compressor configuration These properties represent the following items e Base pressure and temperature of the manufacturer s compressor map e Gas properties of the manufacturer s compressor map e Base properties of the compressor Flow measurement e Head calculation type for surge map data polytropic or pressure ratio e Inlet guide vane usage and associated map technique The following table identifies the configuration parameters range limits and initial values Rockwell Automation Publication 1711 UM002A EN P September 2012 63 Chapter5 SSCCConfiguration Table 41 Parameter List 11 Compressor Configuration Information Description Range Initial Value User configured Value 01 Compressor Base Temperature Tbc 0 999999 Enter in absolute temperature units i e Kelvin or Rankin matching the absolute correction units of any temperature transmitters 02 Compressor Base Pressure Pbc 0 999999 Enter in absolute pressure units matching the absolute correction units of the pressure transmitters 03 Design Gas Ratio of Specific Heats k Cp Cv E 04 Compressor Polytropic Efficiency Peff Polytropic efficiency at surge point 05 Compressor Flow Device Orifice Base Temperature Tbo LN 099999 Enter in absolute temperature units i e Kelvin or Rankin matching the absolute correction units of any temperature transmitters and the compressor
143. ional gain is used to calculate the integral and derivative contributions The setting of 1 Interactive represents the traditional form of PID tuning behavior In other words increasing the gain also increases the integral and derivative contributions The setting of 0 Non Interactive calculates the integral and derivative contributions independent of the proportional gain The integral and derivative are calculated as if they have an effective gain of 1 PID Loop Control Action a k a Direction Choices 0or1 0 Reverse Acting 1 Direct Acting This parameter determines the direction the output moves in consequence to the direction the PV moves Direct An increasing PV will cause the output to increase Reverse A increasing PV will cause the output to decrease PID Control Value CV Maximum Limit 96 Open 100 The maximum limit imposed on the control value output calculated by the PID loop Normally set to 10096 open but can be reduced if desired PID Control Value CV Minimum Limit 96 Open 0 100 The minimum limit imposed on the control value output calculated by the PID loop Normally set to 096 open but can be increased if desired PID Deadband EU 0 999999 A deadband in PV engineering units above and below the loop setpoint When the PV is within the deadband the output of the PID loop is held at its present value and not updated Rockwell Automation Publication 1711 UM002A EN P September 2012
144. ist 11 Param 04 Polytropic Efficiency 0 1 PolyExp Type 0 Fixed 1 Variable EorA List 11 Param 09 PolyExp 0 Const 1 Var PolyExp Max EorA List 11 Param 10 Var Poly Exp Max EU PolyExp Min EorA List 11 Param 11 Var Poly Exp Min EU Compressor Details Base Condition Page Press BRI to display the Compressor Details Base Conditions page The following illustration details the features of the page Figure 42 Compressor Details Base Conditions Page Page Navigation JS se OPTrk ASCV Surge Surge X Head be Ma Cond P Dep CapV Config Test Flow Element Flow Element Base Compressor Base Base conditions Press Abs 24 TO Press Abs 24 70 Temp Abs 567 00 Temp Abs 567 00 Max Flow for OP Qmax for T Gas MW 30 550 calc normalization sasa 7079 asz TET Flow Location 1 Flow Location 1 Suction Qs IGV Methods determines form of Aire hor P UN EN Egee aO 4 Alternate OP Min Limit 0 00 Close Screen Compressor Base Conditions of the Surge Map Also Gas Properties for reference Optional Map Methods for Inlet Guide Vane applications This page provides access to configuration details pertaining to the operating point calculation and inlet guide vane methods for the surge map Rockwell Automation Publication 1711 UM002A EN P September 2012 147 Chapter 6 148 SSCC Operation Table 82 lists the configuration items displayed on the Compressor Details Base Conditions page and
145. ition but once the compressor is running the healthy condition can be lost without affecting the system A warning brings attention to an item that may prevent operation or reflect disabled bypassed functionality of the unit Before attempting to start the compressor the operator should check and understand all interlock permissive and warnings present for the unit Interlocks The overall unit interlock status is presented on the Interlock icon third from the right displayed on the navigation toolbar of any main screen epunAEeeg Rockwell Automation Publication 1711 UM002A EN P September 2012 107 Chapter6 SSCCOperation The five icon status indications for interlocks are described in this table Interlock icon Interlock Status Compressor Trip Output State All interlocks are healthy Normal Healthy D Bypass is not enabled no yellow caution symbol Interlocks status is unhealthy Tripped amp Bypass is not enabled no yellow caution symbol All interlocks are healthy Normal Healthy A Bypass is enabled yellow caution symbol All non bypassed interlocks are healthy Normal Healthy E One or more bypassed interlocks are unhealthy Bypass is enabled yellow caution symbol Interlock status is unhealthy Tripped Bypass is enabled yellow caution symbol To check the status of the individual interlocks press amp on the toolbar to open the Interlock screen Figure 23 Interlock Screen Both
146. itional details about major and minor fault status for the controller is available on page 2 of the Hardware Status screen Figure 51 Hardware Screen Page 2 Major and Minor Faults SSCC ES Controller Fault Status Major Fault Minor Fault C WO Fault C Serial Port Fault C Program Fault C Program Fault C Power Up Fault C Battery Fault C WatchDog Fault C WatchDog Fault C Nonvolatile Mem Fault 2 m oec E The reset button on this screen can be used to reset controller faults This will normally pertain to minor faults In case of major faults it is often necessary to restart the controller Rockwell Automation Publication 1711 UM002A EN P September 2012 167 Chapter8 Troubleshooting The Reset button requires security privileges operator supervisor maintenance engineer or administrator PanelView Maintenance The PanelView Plus Maintenance page is shown in Figure 52 Figure 52 Hardware Screen Page 3 PanelView Plus Maintenance SSCC ES m OO E This page contains the following icons Icon Action Exits the HMI graphics and accesses the PanelView Plus configuration and maintenance features network settings file management screen saver and PanelView date time Consult the PanelView Plus product documentation for details Sets the clock in the controller using the present clock settings on the PanelView 1 0 Modules I O Module Detail screens facilitate installation and commissio
147. ivileges 45 Digital Output Module Detail screen 170 digital output module failure alarm message 175 digital outputs not working troubleshoot 163 digital outputs ok permissive 113 discharge press overrange alarm message 175 discharge press underrange alarm message 175 discharge pressure high alarm message 175 discharge pressure low alarm message 175 discharge temp overrange alarm message 175 discharge temp underrange alarm message 175 discharge temperature high alarm message 175 Index discharge temperature low alarm message 175 discharge throttling capacity control 100 discharge transmitter Compressor Overview page 98 display buffer samples trend 158 download HMI settings to controller 93 parameters 92 drive controller SSCC interface 118 dynamic compressor map control limit line 102 surge control limit line 102 surge limit line 102 edit interlock description 95 parameters 92 permissive description 96 electrostatic discharge precautions 14 enclosure SSCC mount 15 environment requirements 15 Ethernet status 167 external comp trip 1 interlock 109 external comp trip 2 interlock 109 external comp trip 3 interlock 109 external comp trip 4 interlock 109 external ready to start 1 permissive 113 external ready to start 2 permissive 113 external ready to start 3 permissive 113 external ready to start 4 permissive 113 external trip 1 alarm message 175 external trip 2 alarm message 175 external
148. iving the compressor into surge Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Table 43 Parameter List 13 Surge and Margin Configuration Continued 08 09 Backup and Surge Deadband 96 Sets the deadband used for the backup margin condition and the positional surge alarm condition Surge Trip Quantity ve Quantity of surges for the multiple surge trip interlock Surge Trip Time seconds 0 600 The duration of time for the multiple surge trip interlock If the quantity of surges parameter 8 occur within this amount of time the multiple surge trip interlock is generated which triggers the compressor trip output Surge Detection Rate of Change Low Threshold sec 99999 0 Surge Detection Rate of Change Deadband sec Establishes the rate of change RoC low threshold for operating point which is reported as a 099999 A deadband used by the RoC calculation to clear the RoC surge condition surge Surge Detection Rate of Change Time milliseconds 1000 Parameters 10 11 and 12 are used together to specify a surge detection method for rate of change RoC on the operating point OP The RoC of the OP is calculated every scan of the controller set to 20 msec The RoC maintains up to 50 samples of RoC values spanning up to 1 second 50 20 msec 1000 msec The RoC function calculates the average RoC over the time defined by parameter 12 by av
149. kPoint 1 96 Proportional S1 EorA List 18 Param 06 Slope 1 Gain 96 Proportional BP2 EorA List 18 Param 05 BreakPoint 2 96 Proportional 2 EorA List 18 Param 07 Slope 2 Gain 96 Proportional Max EorA List 18 Param 02 Max Proportional Gain Proportional Min EorA List 18 Param 03 Min Proportional Gain Proportional Base M EorA List 18 Param 01 Base Proportional Gain Integral BP1 EorA List 17 Param 04 BreakPoint 1 96 Integral 51 EorA List 17 Param 06 Slope 1 Rpt min 96 Integral BP2 EorA List 17 Param 05 BreakPoint 2 Integral S2 EorA List 17 Param 07 Slope 2 Rpt min 96 Integral Max EorA List 17 Param 02 Max Integral Rpt min Integral Min EorA List 17 Param 03 Min Integral Rpt Min Integral Base M EorA List 17 Param 01 Base Integral Rpt min Customize the Loop From the device configuration you may edit the description and the units of measure These represent string tags in the HMI not the controller These tags are retentive and saved in the HMI memory For example you may want to include the device tag number in the description for example UIC 1007 AntiSurge Control You may also set the units of measure if desired Note that for the anti surge primary PID loop the PV is always the calculated operating point which is normalized 0 10096 value The control value of the PID loop is intended to represent a control signal as 0 10096
150. l tuning values based on operating conditions The adaptive tuning adjustment principles are illustrated in the following figure Figure 39 Adaptive Tuning Principles Maximum Limit Kmax Base value Kbase Breakpoint 2 The controller calculates the difference between the operating point and the surge control line OP SCL These values are shown on the Configuration page When difference between the operating point and the surge control line Diff is between the breakpoints the base tuning value is used When the Diff is Rockwell Automation Publication 1711 UM002A EN P September 2012 143 Chapter 6 144 SSCC Operation outside the breakpoints the tuning value is calculated based on the slopes S1 or S2 A positive value for slope increases the tuning value slope 1 in the illustration A negative value for slope decreases the tuning value slope 2 in the illustration The calculated adaptive tuning value is shown as Kcalc on the Configuration page The calculated value is clamped at the configured minimum and maximum limits Table 79 lists the configuration items displayed on the PID Loop Faceplate Adaptive Tuning Configuration page and the corresponding parameter lists and parameter numbers used for configuration Table 79 PID Loop Adaptive Tuning Configuration Parameter List Cross Reference Faceplate Configuration Item Security Parameter List Parameter Proportional BP1 EorA List 18 Param 04 Brea
151. l Configuration 01 02 03 04 05 06 07 Description Range Initial Value User configured Value Anti surge PID Loop Output Min Max Select Type Choices 0 Minimum select 1 Maximum select Not Running Control Value 96 open The anti surge valve is set to this control value whenever the compressor is Not Running or Unloaded This value overrides the PID output values calculated by the primary or secondary anti surge PID loops If this value exceeds the min or max CV limits expressed in parameters 7 and 8 the min max limited value is used under the Not Running or Unloaded condition PID Track Margin 96 Open When both the primary and secondary anti surge PID loops are configured this value sets the tracking limit for the PID loop that is not producing the selected output This keeps the non controlling loop from winding up and moving away from the control value by more than a PID track margin For example if the PID track margin is set to 1096 the select type is set to Maximum the compressor is Running and Loaded the primary PID loop output is max selected and at 60 and the secondary PID loop output is 55 and reducing If the secondary loop output reduces below 50 60 10 the secondary output is limited tracks at 50 If the primary loop output increases to 61 the secondary loop tracking rises to 51 61 10 Anti surge Valve Location Choices 0or 1 1 0 Blow Off valve 1
152. ld input device s Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Table 67 Descriptions of Warnings Continued Warning Explanation Analog Input in Substitute PV mode One or more analog input channels in substitute PV mode System will not respond to actual field transmitter signal s Fallback to fixed polytropic exponent A failed transmitter exists which prevents the system from calculating a polytropic exponent from actual pressure and temperature measurements A fixed polytropic exponent calculation is used f k Peff This may affect the accuracy of the head calculation Surge Test ASC mode protection bypassed Surge test is enabled bypassing the normal protection limits for Manual mode operation of the anti surge primary PID loop In this condition it is possible to drive the compressor into surge by operating the ASC primary PID loop in Manual mode Check and Reset a Warning Example The following sequence provides an example of checking warning indications Screen Indications Observations and Actions The unit warning status on the navigation toolbar 4 p YN A d gt informs the user that Warnings are present yellow Press the Warnings icon to open the Warnings screen Page 1 Preventing Operation No warnings epuAmeeg Level 1 Preventing Operation Hot Logged In Head Calc Config Error OP Calc Config Error Surge Map Config Error lt a eo ES epuAm
153. ld not be configured for the same signal type Table 38 Parameter List 08 AIN Multi use Signal B No Description Range Initial Value User configured Value 01 05 Channel Usage Configuration Choices Us 0 Not configured 1 PosA anti surge valve position transmitter 2 PosCap capacity valve guide vane position transmitter 3 SG SurgeGard incipient surge detection signal Note When configured for SurgeGard incipient surge detection signal the High Alarm is used as the signal threshold that triggers the incipient surge control value increment action see parameter 09 in list 15 Anti Surge Control General Configuration on page 69 Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choices 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or 1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits 06 Absolute Adjustment Engineering units 0 999999 Not applicable for this signal set to 0 07 08 Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or 1 0 No low level alarm not to be used 1 Yes low level alarm to be
154. led layout drawings and be sure that these components were not damaged during shipment e Check cable assemblies to make sure they were not damaged during shipment All wire ducts should be fitted with covers and all cable assemblies should be appropriately dressed with cable ties and or spiral Wrap 14 Rockwell Automation Publication 1711 UM002A EN P September 2012 Single Stage Compressor Controller Installation Chapter 2 Environmental Location Requirements To meet environmental requirements when installing the equipment it should be installed in a room with an ambient temperature of 10 50 C 14 122 F with a relative humidity of 096 to 9596 relative humidity non condensing and the room must be provided with adequate lighting Tools An adjustable wrench and socket set are required for panel installation Mount the Enclosure 1 Determine the mounting location and be sure it is able to support 31 8 kg 70 Ib Allow sufficient room above and below or at the left and right sides for cable exiting the enclosure and for opening the door 2 Mark the wall through the top of the slots in oz y the top two mounting key holes Drill the necessary holes for the bolts 3 Insert the bolts through the bottom two mounting key holes of the enclosure and into the wall DO NOT tighten the bolts at this time 4 Mark the wall through the holes in the top two mounting holes Remove the enclosure from the wall drill the necessa
155. lly used after making m changes using Edit Parameter Does not save CURR values from the controller to the HMI file memory e Ifyou want to save controller values to the HMI file memory use Upload Edit Parameter Eor A Modifies the value presented on screen in the FILE column What Task Do You Want to Accomplish want to view parameter configuration settings want to configure parameters for a new system want to modify settings currently in use in the present controller e licking the Download button does not write values from the screen to the controller and does not read values from the controller doesn t update CURR column is have modified values on the screen using Edit Parameter then use Save before a download After a download use Restore to update CURR values from the controller e Does not change the value in the Controller Does not change the value in the HMI file memory e After making changes using Edit Parameter use Save to write the changed parameter values to the HMI file memory When working with the parameter lists you will typically complete a sequence of actions to accomplish the desired task Use the following table to identify the task you want to complete and the recommended sequence of actions Recommended Action Sequence 1 Select the desired parameter list 2 Click Restore to update the parameter table 3 Scroll as required to view parameter values For each parameter list
156. log input signal is wired to controller but functionality does not work Suggested Action s Check the interlocks used to generate the compressor trip output signal Investigate any Trip conditions they must be cleared or bypassed to start Reset the latched Interlocks using Interlock reset Check the Compressor Trip Digital Output Device faceplate should be in Program mode Check the permissives used to generate a Ready to Start output signal Investigate any Not Ready conditions they must be ready or bypassed to Start Check the Ready To Start Digital Output Device faceplate should be in Program mode Check methods for run determination Compressor Run Digital Input e Check the input signal on DIN channel 0 e Check the channel fuse e Check that the digital input channel is configured for use e Check the device faceplate if the input is in Substitute PV mode Compressor head used for run determination e Check for Compressor Head gt Head Run Threshold e Check for a Compressor Head Calc fault Auxiliary control PV used for run determination i e Amps e Check for Aux Control PV gt Aux Run Threshold e Check if the Aux Control Device faceplate if input is in Substitute PV mode Check the on delay timer preset for run determination Check method for load request External load push button e Check the input signal on DIN channel 2 e Check the channel fuse The Load butto
157. log output 135 digital input 138 digital output 140 interlock bypass 95 parameters 92 permissive bypass 96 PID loop 142 control loops ready permissive 113 control margin features 11 control slew rate features 11 control track management features 11 controller download settings from HMI memory 93 features 19 modify settings 92 save values to memory 93 controller fails to power up troubleshoot 163 controller failure alarm message 174 controller status 166 application mode 166 battery status 166 Ethernet status 167 I 0 system status 166 major fault status 167 minor fault status 167 Rockwell Automation Publication 1711 UM002A EN P September 2012 D data trend 157 default user security 39 Device faceplate access 128 overview 122 device name default 130 digital input channel assignment 20 channel status 170 configure 138 operation 137 processing 10 Digital Input Device faceplate 137 Digital Input Device screen security privileges 44 digital input in substitute PV mode warning 116 Digital Input Module Detail screen 170 digital input module failure alarm message 174 digital input signal is wired to controller but functionality does not work 180 digital inputs not working troubleshoot 163 digital inputs ok permissive 113 digital output channel assignment 21 channel status 171 configure 140 operation 139 processing 10 Digital Output Device faceplate 139 Digital Output Device screen security pr
158. loop is in Manual mode the manual control value can be adjusted security privilege required O S M or E Control value entry is limited by the configured CV Minimum and CV Maximum values PID Loop Device Configuration Press a to display the Configuration page There are two types of Configuration pages for the PID loop 1 Standard Tuning 2 Adaptive Tuning The anti surge primary PID loop uses the Adaptive Tuning configuration page and the other PID loops use the Standard Tuning configuration page Configuration Page Adaptive Tuning The following illustration details the features of the PID Adaptive Tuning Configuration page used for the anti surge primary PID loop Rockwell Automation Publication 1711 UM002A EN P September 2012 BP1 Break point 1 SSCC Operation Chapter 6 Figure 38 PID Faceplate Adaptive Tuning Configuration Page Close Screen Ez EC AntiSurge Primary Loop Edit Device Name Unit Of Measure PYEU EU CVEU Edit Units of Measure Proportional Integral BP4 1 00 BP4 1 00 s Values influencing Si 2 00 4 10 00 TEM Adaptive Tuning BP2 5 00 BP2 5 00 Diff 9 07 calculation S 0 05 52 200 Proportional Max 10 00 Max 100 00 Base 0 20 Base Tuning Values Min 0 10 Min 1 00 Integral Kcalc 10 00 Kcalc 50 58 Base 10 00 Adaptive Tuning values Adaptive tuning is used to automatically adjust the proportional and integra
159. mary or capacity secondary PID loops if selected The following table identifies the configuration parameters range limits and initial values Table 32 Parameter List 02 AIN Suction Pressure No Description Range Initial Value User configured Value 01 05 06 07 08 Channel Usage Configuration Choices 0or 1 1 0 Not configured 1 Suction Pressure Usage should always be configured 1 In rare cases where the compressor has no suction pressure transmitter configure 1 and use substitute PV to set the value equal to the compressor base pressure Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choices 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or 1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering units 0 999999 If transmitter is a gauge transmitter enter the amount to convert to absolute pressure If the transmitter is an absolute transmitter enter 0 Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or 1 0 No low level alarm not to be used 1 Yes low level alarm to be
160. mber 2012 83 Chapter5 SSCC Configuration 25 DINs Substitute PV List 24 defines whether to allow or dis allow the use of substitute PV for each digital input channel Substitute PV mode allows the user to override the actual measured digital input value with a substitute process value entered by the user The configuration setting for use of substitute PV mode is configured as one of the following values 0 Allow Substitute PV mode to be used 1 Dis Allow Substitute PV mode The following table identifies the configuration parameters range limits and initial values Table 55 Parameter List 25 DINs Substitute PV No Description Range Initial Value User configured Value n umeseWWmeg WE E Sg wemiAeeHdew CC S ePwhuenamd C amp WemRme Mee WE amp metes edy WI amp meis Www WE y mewRieH ded C s ewm ee WE 8 mewoeeWiRM ed C w eese Wed pur V mesumesiWWAm d ur P uess mesiWmeS i S 26 Reserved for Future Use List 26 is not implemented on the HMI and is reserved for future use The following table identifies the configuration parameters range limits and initial values Table 56 Parameter List 26 Reserved for Future Use No Description Range Initial Value User configured Value NA This parameter list is not implemented on the HMI and is reserved for future u se 84 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 2
161. n is located on the HMI Operator screen security privilege is required Check the wiring for the input on TS1 Check the fuse for the input on TS1 Check that the DI status reports correctly on the 10 screen for the digital input module Check that the DI channel is configured for use Check that the input state for the channel is configured correctly Open the device faceplate check if device in Substitute PV mode Check the wiring for the input on TS1 Verify that the polarity is correct Check the fuse for the input on TS1 Check the analog input reading on the IO screen for the analog input module Raw counts read 0 at 4 mA and 10000 at 20 mA Check that the Al channel is configured for use Check that the engineering unit range and scaling is configured correctly Open the device faceplate check if device in Substitute PV mode 180 Rockwell Automation Publication 1711 UM002A EN P September 2012 A AC safety ground 16 access Device faceplate 128 Hardware screen 165 I O Module Detail screen 168 Interlocks Configuration screen 93 Parameter Configuration screen 89 parameter list 89 Permissives Configuration screen 93 Trend displays 153 activate human machine interface 25 activation key ID 25 adaptive tuning definition 143 features 11 Adaptive Tuning Configuration page 142 alarm icon status indications 173 alarm message 176 analog input module failure 174 analog output module failure 174 antisurge
162. n use on the controller 2 Even Parity 07 Set Port Configuration m Set this value to 1 to trigger setting the serial port Note The controller always clears this value after setting the port so the CURR column will always read back a 0 value Rockwell Automation Publication 1711 UM002A EN P September 2012 87 Chapter 5 Table 60 SSCC Configuration 30 Application HMI Configuration List 30 defines key properties for the HMI application These parameters are used for the following settings e The maximum number of pages to support on various HMI screens e To permit or deny the use of interlock permissive bypasses for the system The following table identifies the configuration parameters range limits and initial values Parameter List 30 Application HMI related Configuration 01 02 03 04 05 06 07 08 09 88 Maximum Operator Screens Sets the number of pages for the Operator screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Maximum Maintenance Screens Sets the number of pages for the Maintenance screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Maximum Warning Screens Sets the number of pages for the Warnings screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Maximum Interlocks Screens Sets the number of pages for the Interlocks screen DO NOT CHANGE UNLESS ADVISED BY FACTORY Maximum Permissives Screens Sets the number of pages for the Permissives screen DO NOT CHANGE UNLES
163. nal 10 13 5 based on configuration O60000 Ez Anti surge Control Valve e Recycle e Blow off based on configuration CV 100 00 amp 5 065 ki Pos CV Control Valve Pos Position Feedback if configured CV 100 00 Pos 5856 Rockwell Automation Publication 1711 UM002A EN P September 2012 97 Chapter6 SSCCOperation The suction and discharge transmitters presented on the screen are based on the individual analog input channel configuration options The units displayed for each transmitter default EU shown follow the unit string customization available on the analog input device faceplates The algorithm for anti surge control calculates the operating point OP The instrumentation requirements are based on the type of flow measurement configured These requirements are reflected in the following table Flow Configuration Suction Transmitters Discharge Transmitters Pressure Ps Temperature Ts Pressure Pd Temperature Td Ps 2547 EU Ts 106 94 EU Pd 2553 EU Td 107 07 EU Flow in Suction Required Optional Required Optional Qs 0 00 EU Fow in Discharge Required Optional Required Optional no coolers Qd 000 Eu Flow in Discharge Required Required Required Required downstream of coolers Qdd 0 00 EU Alternate measurement Required Optional Required Optional Gat 0 00 Ev Unit Status Indicators The unit status indicators along the right side of the page r
164. neer or Administrator A permissive is bypassed when 1 The permissive is configured as Bypassable and 2 Bypass is enabled on the Maintenance screen Rockwell Automation Publication 1711 UM002A EN P September 2012 Operation Screen Details Suction Transmitters e Pressure Ps e Temperature Ts e How Qs based on configuration Load Unload Buttons Anti surge Control Distance Between OP and CLL e Dist lt 0 0 ASC Valve Opening e Dist 0 0 ASC on Control Limit Line e Dist gt 0 0 ASC Valve Closing Ts Dist OP CLL a Chapter 6 SSCC Operation This section provides details for the main Operation screens and guides you through the process of putting the SSCC in operation The main Operator screen has many visualization features that are based on choices made during configuration This section provides details about these features Compressor Overview The Compressor Overview is page 2 of the Operator screen This screen provides a process diagram overview of the compressor and the configured instrumentation Key features for anti surge control are represented in the following illustration Figure 13 Compressor Overview Page Discharge Transmitters e Pressure Pd e Temperature Td e How Qd Qdd Qalt based on configuration Unit Status Indications Aux Ctrl PV 000 EU Optional Signals e Auxiliary Control PV 0995 Incip sgo e Incipient Surge Sig
165. nes the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 6 for multi use signal A The multi use signal input can be used for the following purposes e Avalve position feedback transmitter for either the anti surge valve or the capacity control valve guide vanes e The incipient surge detection signal from the optional SurgeGard device The following table identifies the configuration parameters range limits and initial values Note Multi use signal A and multi use signal B usage should not be configured for the same signal type Table 37 Parameter List 07 AIN Multi use Signal A No Description Range Initial Value User configured Value 01 05 06 07 08 Channel Usage Configuration Choices 0 3 0 Not configured 1 PosA anti surge valve position transmitter 2 PosCap capacity valve guide vane position transmitter 3 SG SurgeGard incipient surge detection signal Note When configured for SurgeGard incipient surge detection signal the High Alarm is used as the signal threshold that triggers the incipient surge control value increment action see parameter 09 in list 15 Anti Surge Control General Configuration on page 69 Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit val
166. nfiguration 064 61 10 Digital Output Channel Configuration 06 63 11 Compressor Configuration Information usse 63 I2 Suroe Map DENON si citets teeta tact End dius 65 13 Surge and Margin Configuration 0 cee eee e eee 66 14 Run and Load Configuration 0 cece cece eee ees 68 15 Anti Surge Control General Configuration 69 I6 5 Primary PED EGOD ac odeur e mbar tait mee E 70 17 ASC Primary PID Loop Adaptive Integral 72 18 ASC Primary PID Loop Adaptive Proportional 79 19 ASC Secondary PID EO0ps s accio EE RETE Ree erat ceeees 74 20 Capacity Control General Configuration 76 2k Capacity Primary PED L OOP essre ox eeex o EIA 78 22 Capacity Secondary PID Loop 3 2 uk eeneo I RO eR ER Seth 80 23 Anti Surge Capacity Decoupling Configuration 82 DARING Substitute PV oed opere tain bios 83 25 DUNSs Substitute PY 524 vbr iR E e REPE Ein 84 26 Reserved for Future Use eeeeeeeeeeeeee eee 84 27 Interlock Bypassable Configuration e eee e ee 85 28 Permissive Bypassable Configuration Luue 86 29 Modbus Serial Port Configuration 0s seen 87 30 Application HMI Configuration cece eee eee 88 Parameter bist COnneuratlOn oes oc nica e ER REPE EA 89 Parameter Configuration Screen Overview s
167. ng projects for Logix5000 controllers PanelView Plus Compact Terminals User Manual publication 2711PC UM001 Provides instructions for installing configuring and operating PanelView Plus Compact terminals Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 Provides general guidelines for installing a Rockwell Automation industrial system Product Certifications website http www ab com Provides declarations of conformity certificates and other certification details You can view or download publications at http www rockwellautomation com literature To order paper copies of technical documentation contact your local Allen Bradley distributor or Rockwell Automation sales representative Rockwell Automation Publication 1711 UM002A EN P September 2012 7 Preface Notes 8 Rockwell Automation Publication 1711 UM002A EN P September 2012 Chapter 1 Introduction Product Description The Single Stage Compressor Controller SSCC from Rockwell Automation is a packaged solution providing anti surge and capacity control for a single stage centrifugal or axial gas compressor The SSCC is an economical compressor controller providing advanced control algorithms allowing for safe and energy efficient operation across the compressors operating range Figure 1 Typical Compressor Controls Se ee ne Suction Valve Capacity Control Compressor Application Overview The SSCC utiliz
168. ning activities and system troubleshooting Follow these steps to access the desired I O Module Detail screen 1 Press ES to close any open pop up screens and return to a main screen showing the navigation toolbar 2 Press of on the navigation toolbar The Maintenance screen appears 168 Rockwell Automation Publication 1711 UM002A EN P September 2012 Troubleshooting Chapter 8 3 Press topageforward or 4 to page backward as required to navigate to page one of the Maintenance screen page 1 Configuration and Settings shown here epuAmeeg Configuration Hardware P ER B amp TE Bypass Interlocks amp Permissives an Device Operation amp Settings Compressor Flow A Vv a ooo ES Press to open the Hardware screen Controller Status page 1 5 Press gt topageforward or 49 to page backward as required to navigate to page one of the Hardware screen page 1 Controller Status shown here SSCC ES 3 Run Mode Memory 9 Controller Ok Used 89 0 C Battery Ok Bytes Free 57468 F io ok C Minor Fault C Major Fault ens ok Slot 1 1769 1016 a F eoo csi 6 Press 4 y toselect the desired module from the I O Module selector list at the bottom of the screen The following I O modules are available e For Digital Inputs Slot 1 1769 IQ16 e For Digital Outputs Slot 2 1769 OB16 e For Analog Inputs Slot 3 1769 IF8 e For Analog Outputs Slot 4
169. nt below breakpoint 1 07 Slope 2 S2 Repeat min 96 100 100 2 The slope used for adaptive tuning adjustment above breakpoint 2 72 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 18 ASC Primary PID Loop Adaptive Proportional List 18 defines the adaptive proportional tuning properties used for the anti surge control primary PID loop The adaptive tuning parameters include the following features e A base tuning value used when operating between breakpoints e Tuning value minimum and maximum limits e Breakpoints and slopes used to calculate the adaptive tuning value based on operating conditions The following table identifies the configuration parameters range limits and initial values Table 48 Parameter List 18 ASC Primary PID Loop Adaptive Proportional Description Range Initial Value User configured Value Base Proportional Kbase Gain The base proportional is the value used when operating within the breakpoints BP1 and BP2 01 02 03 Maximum Limit for Adaptive Proportional Kmax Gain The calculated adaptive proportional is limited to this maximum value Minimum Limit for Adaptive Proportional Kmin Gain 0 100 0 1 The calculated adaptive proportional is limited to this minimum value Breakpoint 1 BP1 96 20 0 The distance below negative the CLL where adaptive tuning calculation adjustment begins Breakpoint 2 BP2 96 Th
170. ntroller values to the HMI file memory have replaced my controller and it is loaded with the default SSCC Logix application and settings All my configured settings are saved in the HMI file memory want to apply all my settings in the HMI to the controller All my settings are saved in the HMI file memory want to make an archive copy to a compact flash memory card SSCC Configuration Chapter 5 Recommended Action Sequence Is your compressor running e Yes Wait until the compressor stops e No Complete the following steps For each parameter list 1 Selectthe desired parameter list 2 Click Upload to upload the controller values to the HMI file memory 3 Optional Click Restore to update the parameter table values on the HMI screen You can verify that the CURR and FILE values now match If you have replaced the controller you may need to re activate the HMI Refer to Activate the HMI on page 25 If your HMI is successfully activated follow these steps for each parameter list 1 Select the desired parameter list 2 Click Restore to display the contents of the list on the HMI screen 3 Review the list checking that the FILE column has the intended values 4 Click Download to download the values to the controller 5 Click Restore to refresh the list on the screen 6 Review confirm that the CURR values from the controller now match the FILE values from the HMI file memory In order to make an archiv
171. on the Compressor Overview Operator screen page 2 In addition to this HMI annunciation the compressor loaded digital output DOUT channel 5 is energized for external indication usage Once the compressor is set to load the anti surge and capacity valve devices are released from their respective override values and available for regulatory control by the configured anti surge and capacity control PID functions Figure 28 Compressor Overview Compressor Loaded Status GAIAK OB 95 uh eux o T Ra r en CO rc F m m m Ll a tL i cn ha D a ed wi o e cea m m ds Dist OP CLL CV 45 7 3 e Incip Sr 0 24 Pos 46 28 06 E m TRE WW 3 The Operator screens and PID faceplates can now be used to control and adjust the operating behavior of the compressor Rockwell Automation Publication 1711 UM002A EN P September 2012 121 Chapter6 SSCC Operation Device Faceplates 122 The HMI provides several device faceplates to operate and configure devices The following tables provide an overview of these device faceplates and their features Table 68 Analog Input Device Faceplate Tab Sample Screen Description Analog Input Device Faceplate Operator tab 4 i Ta x Display Features 50 00 36 00 e Banner with device name e Bar graph display of PV value in use e High and low alarm value setpoint values and level mem indicators on bar graph e Indicators for O
172. one The compressor is running mode change not available Program Pressing the button switches the mode to Operator Operator ra Pressing the button switches the mode to Program Rockwell Automation Publication 1711 UM002A EN P September 2012 139 ie po Chapter6 SSCC Operation The mode buttons and operator control buttons require security privileges operator supervisor maintenance or engineer Digital Output Device Configuration Press f to display the Configuration page Many of the digital output channel configuration parameters may be adjusted on this page Figure 36 Digital Output Faceplate Configuration Page Close Screen gt Control Value mE Configuration 1 Compressor Trip DO Edit Device Name properties Fail On d Table 78 lists the configuration items displayed on the Digital Output Faceplate Configuration page and the corresponding parameter lists and parameter numbers used for configuration Table 78 Digital Output Device Configuration Parameter List Cross Reference Faceplate Configuration Item Parameter List Parameter Number Fail On List 10 Digital Output Channel Configuration Parameter various individual per channel Customize the Channel From the device configuration you may edit the description This represents a string tag in the HMI not the controller This tag is retentive and saved in the HMI memory For example you may want to include the
173. only not used in calculations 64 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 12 Surge Map Definition List 12 defines the surge map for the compressor The SSCC utilizes a ten segment lookup table to represent the surge map plotting Head vs Flow normalized as Q When the compressor includes inlet guide vanes IGV the IGV position is also configured for each point on the surge map The surge map values for Head and normalized Flow are typically generated using the Rockwell Automation compressor toolset The toolset allows the user to enter values taken directly from the manufacturer s compressor map and generates the Head HpSim or Pratio and Flow 96Q values required by the anti surge control algorithms in the SSCC The following table identifies the configuration parameters range limits and initial values Table 42 Parameter List 12 Surge Map Definition No Description Range Initial Value User configured Value 01 X axis Values 9607 11 points for compressor surge map 02 Values represent the Flow squared normalized over a Flow max range referred to as Q squared 03 or 96Q 04 Values typically generated using the Rockwell Automation compressor toolset 05 Values must be ascending D Pt 0 lt Pt 1 Pt 1 lt Pt 2 Pt 8 lt Pt 9 Pt 9 lt Pt 10 07 When not all points are required set each point in the list to 0 D as required
174. ontrolled Variable Operator Mode Suction Pressure Input Scaling Scaled EU 50 00 0 00 Raw Input 10000 ps 0 Units EU Maximum Minimum Has Extend Scaling Square Root Extract Alarm Config Has Hi Alarm Has Lo Alarm 35 00 10 00 0 00 w Hi Alarm Limit w LoAlarm Limit Alarm DB Rockwell Automation Publication 1711 UM002A EN P September 2012 Analog Output Device Faceplate Operator tab Display Features e Banner with device name e Bar graph display of CV value in use e Valve position feedback value when configured e Indicator for 10 Fault when condition present e Visual indication of Program or Operator modes Operational Features e Use amp and XE to choose between Program and Operator mode security privilege required 0 S M or E e n Operator mode enter the manual CV value security privilege required 0 S M or E Analog Output Device Faceplate Configuration tab Display Features e Configuration parameter values viewable regardless of security privilege Configuration Features e Customize the device name and unit of measure strings security privilege required E or A e Other configurable properties for reference only Some available from compressor details device faceplate 123 Chapter 6 124 SSCC Operation Table 70 Digital Input Device Faceplate Tab Sample Screen Description 2 Digital Input Device Faceplate Operator tab En es E Display
175. opup screen for the chosen trend group 34 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Interlocks Screen Overview From any main screen press the Interlock icon onthe navigation toolbar to open the Interlocks screen The Interlocks screen has two pages presenting the condition of the compressor interlocks Table 11 Interlocks Screen Pages Page Example Screen Description 1 oe Interlocks Screen Internal Interlocks t F A 9 Display Features V Multiple surge Trip Bl operating Point Fit e Internal Interlocks organized on page one e First Out interlock displayed in yellow color Operational Features e When available press p to reset latched interlocks that have cleared security privilege required 0 S M E or A 2 Interlocks Screen External Interlocks 4 amp A adiks Display Features Bi external vum m 2 e External interlocks organized on page two FJ External Comp Trip 3 First Out interlock displayed in yellow color F External Comp Trip 4 Operational Features e When available press B to reset latched interlocks that have cleared security privilege required 0 S M E or A Rockwell Automation Publication 1711 UM002A EN P September 2012 35 Chapter4 Human Machine Interface Permissives Screen Overview From any main screen press the Permissive icon onthe navigation toolbar to open the Permissives screen The Permissiv
176. or the Run determination Run condition if Head gt Threshold Confirmed Run Status On delay Timer Preset seconds This value is the preset for the confirmed run status on delay time Until the compressor is confirmed running loading is not permitted and the anti surge and capacity control devices are held at their override unload not running position This on delay timer applies to all options for Run condition in other words the Comp Run DI AuxCntrlSig threshold and Head threshold Confirmed Run Status Off delay Timer Preset seconds This value is the preset for the confirmed run status off delay time Once confirmed run status is set running condition s must clear for this off delay time before the confirmed run status is cleared Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 15 Anti Surge Control General Configuration List 15 defines general properties for anti surge control that are independent from the primary and secondary anti surge PID loops These general configuration properties are used for the following controls e Anti surge valve control value limits e Anti surge valve slew rate limits e Ant surge valve position deviation alarming e Anti surge PID loop min max selection e Anti surge PID loop tracking The following table identifies the configuration parameters range limits and initial values Table 45 Parameter List 15 Anti Surge Control Genera
177. otor turbine etc that turns the compressor The SSCC provides interface I O to coordinate the following signals with the drive controller e Ready to start digital output signal to the drive controller This signal is controlled based on the unit permissive status e Compressor trip digital output signal to the drive controller This signal is controlled based on the unit interlock status e Compressor running digital input signal from the drive controller The compressor state of operation is influenced by the interlocks trip permissives ready to start running determination and load unload requests It is highly recommended that alarms or warnings be cleared before starting the compressor The toolbar icons for alarm and warning should be white indicating that none of these categories has active items 118 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 has not been completed All relevant configuration parameters discussed in this chapter must be properly configured Failure to do so may cause equipment damage or personal injury ATTENTION Do not attempt to start the compressor if the unit s configuration valve position is recommended before starting the compressor Failure to do so f ATTENTION Visual confirmation of the anti surge valve position and capacity may cause equipment damage or personal injury When the compressor is ready to start the Compressor O
178. pacity PID loops These general configuration properties are used to define the following settings e Capacity device location representation on Process Overview screen e Capacity device control value limits e Capacity device slew rate limits e Capacity device position deviation alarming e Capacity PID loop min max selection e Capacity PID loop tracking The following table identifies the configuration parameters range limits and initial values Parameter List 20 Capacity Control General Configuration No Description Range Initial Value User configured Value 01 02 03 04 05 76 Capacity PID Loop Output Min Max Select Type Choices 0 Minimum select 1 Maximum select Not Running Control Value 96 Open The capacity device is set to this control value whenever the compressor is Not Running or Unloaded This value overrides the PID output values calculated by the primary or secondary capacity PID loops If this value exceeds the min or max CV limits expressed in parameters 7 and 8 the min max limited value is used under the Not Running or Unloaded condition PID Track Margin Open When both the primary and secondary capacity PID loops are configured this value sets the tracking limit for the PID loop that is not producing the selected output This keeps the non controlling loop from winding up and moving away from the control value by more than a PID track margin For example
179. password 38 39 user name 38 user roles 38 security privileges Alarm screen 43 Analog Input Device screen 45 Analog Output Device screen 45 Compressor Details screen 47 Digital Input Device screen 44 Digital Output Device screen 45 Hardware Status screen 44 Interlocks Configuration screen 44 Interlocks screen 43 Maintenance screen 43 operator screen 43 Parameter Configuration screen 44 Permissives Configuration screen 44 Permissives screen 43 PID Loop Device screen 46 user roles 43 set clock HMI 168 single stage compressor controller components 13 install 13 interface to drive controller 118 power up 17 specifications trend 158 speed setpoint to speed controller capacity control 100 SSCC See single stage compressor controller Standard Tuning Configuration page 145 status permissives 113 substitute PV mode analog input 132 suction press overrange alarm message 176 Rockwell Automation Publication 1711 UM002A EN P September 2012 suction press underrange alarm message 176 suction pressure high alarm message 176 suction pressure low alarm message 176 suction temp overrange alarm message 176 suction temp underrange alarm message 176 suction temperature high alarm message 176 suction temperature low alarm message 176 suction throttling capacity control 99 suction transmitter compressor overview page 98 surge control algorithm 9 surge detection features 11 surge map features 11 surge map con
180. put is On 07 Use Unload Push Button Signal Input DI Channel 3 0or 1 0 No do not use this signal 1 Yes Use this signal for Unload push button 08 Unload Push Button State DI Channel 3 0or 1 1 0 Trigger unload request when input is Off 1 Trigger unload request when input is On 09 Use External Ready To Start 1 Signal Input DI Channel 8 0or 1 0 No do not use this signal 1 Yes use this signal for Ready To Start 1 condition 10 External Ready To Start 1 State DI Channel 8 0or1 1 0 Ready To Start state when input is Off 1 Ready To Start state when input is On 11 Use External Ready To Start 2 Signal Input DI Channel 9 0or 1 0 No do not use this signal 1 Yes use this signal for Ready To Start 2 condition 12 External Ready To Start 2 State DI Channel 9 0or 1 1 0 Ready To Start state when input is Off 1 Ready To Start state when input is On 13 Use External Ready To Start 3 Signal Input DI Channel 10 0or 1 0 No do not use this signal 1 Yes use this signal for Ready To Start 3 condition 14 External Ready To Start 3 State DI Channel 10 0or1 1 0 Ready To Start state when input is Off 1 Ready To Start state when input is On Rockwell Automation Publication 1711 UM002A EN P September 2012 61 Chapter5 SSCCConfiguration Table 39 Parameter List 09 Digital Input Channel Configuration Continued Description Range Initial Value User configured Value 15 Use External Ready To Start 4 S
181. r 07 2011 11 10 36 AM Current User DEFAULT 93 eooooo epuAmBeeg Ps 2020 EU Qs 1 00 EU J T nd ont Dist OP CLL 10 09 CV 100 lt a 000000 Ps 25 48 EU Ts 107 02 EU CV 10 00 CV 100 lt a 060000 20 40 60 80 100 Dist OP CLL 6 07 a 00000 Pd 20 23 EU 00 96 GPAD S Pa 2553 E Td 107 10 amp Qd 14 E Dist OP CLL Aux Ctrl PV 0 08 EU Incip Srg 0 83 C 00 96 0 00 ASC 100 0 0 01 0 06 6 01 6 08 6 08 Compressor Details GFRAH 0 20 40 60 80 100 Dist OP CLL 6 04 0 00 0 01 0 04 6 01 6 05 6 05 Compressor Details 4n 006000 CV 100 00 Operator Screen Overview From any main screen press the home icon onthe navigation toolbar to open the Operator screen The Operator screen contains six pages for operations When the Operator screen appears the last viewed page is presented Description Operator Screen User Login Display Features e Date and time of the HMI Operational Features e Press to log in and obtain user security privileges e Press to log off return to Default user with no security privileges Operator Screen Compressor Overview Display Features e Signal values for all configured transmitters AINs e Anti surge valve control value and location e Capacity control value and device type location if configured e Overall unit status indicators ready trip su
182. r Run input from the drive system 12 Reset Push Button DIN channel 1 allocated for external Reset P B 13 Load Request Push Button DIN channel 2 allocated for external Load P B Unload Request Push Button DIN channel 3 allocated for external Unload PB 15 External Ready To Start 1 DIN channel 8 allocated for Ready To Start 1 a Permissive 16 External Ready To Start 2 DIN channel 9 allocated for Ready To Start 2 a Permissive 17 External Ready To Start 3 DIN channel 10 allocated for Ready To Start 3 a Permissive 18 External Ready To Start 4 DIN channel 11 allocated for Ready To Start 4 a Permissive 19 External Compressor Trip 1 DIN channel 12 allocated for Compressor Trip 1 an Interlock 20 External Compressor Trip 2 DIN channel 13 allocated for Compressor Trip 2 an Interlock 21 External Compressor Trip 3 DIN channel 14 allocated for Compressor Trip 3 an Interlock 22 External Compressor Trip 4 DIN channel 15 allocated for Compressor Trip 4 an Interlock 23 Compressor Trip DO DOUT channel 0 allocated for Compressor Trip Interlock signal to the drive controller 24 Surge Alarm DOUT channel 1 allocated for optional Surge Alarm status indication 25 System Trouble DOUT channel 2 allocated for optional System Trouble status indication 26 Ready To Start DO DOUT channel 3 allocated for Ready To Start Permissive signal to the drive controller 27 Compressor Running DO DOUT channel 4 allocated for optional Compressor Running status indicat
183. raw count and description are presented The channel descriptions on this screen are fixed and cannot be customized They reflect the allocated function for each channel The channel number and value are used as a status indicator for the individual channel Visual Indication Example Explanation 1 EN Sarton Pressure The grey color indicates the input is normal The red color indicates a fault is reported Ea B061 Suction Pressure The analog input channels are configured for input range of 4 20 mA with data format percent range This configuration reports a raw count of 0 at 4 mA to 10000 at 20 mA The percent range configuration makes reading the input as a percent of transmitter span quite simple For example a reading of 2500 is 25 0096 of the transmitter span or 8 0 mA The absolute measurement reported range is 500 3 2 mA to 10625 21 0 mA Rockwell Automation Publication 1711 UM002A EN P September 2012 171 Chapter8 Troubleshooting Analog Output Module Detail The Analog Output Module Detail screen is shown in Figure 56 Figure 56 Analog Output Module Detail slot 4 1768 OF4 0 4918 Antisurge Cntrl Viv 1 2580 Capacity Control Viv i 0 NotUsed 3 0 Not Used For each output channel the channel number output command value and description are presented The channel descriptions on this screen are fixed and cannot be customized They reflect the allocated function for each channel The channel number and
184. red for use The discharge temperature configuration is required when the flow usage is configured as Qdd Engineering Unit Scale Max Limit EU 999999 999999 100 The scaled engineering unit value at 20 mA input Engineering Unit Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choices 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering units 0 999999 For internal calculations the temperature must be converted into absolute units Enter the absolute adjustment value For DegF transmitters set to 460 to convert to DegR For DegC transmitters set to 273 to convert to DegK Suction and discharge transmitters must be in the same units Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or 1 0 No low level alarm not to be used 1 Yes low level alarm to be used 09 High Alarm Limit Value Engineering units 999999 999999 10 Low Alarm Limit Value Engineering units 999999 999999 CENE 11 Alarm Deadband Engineering units 0 999999 DEM 58 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 07 AIN Multi use Signal A List 07 defi
185. reen appears 3 Press topageforward or 49 to page backward as required to navigate to page one of the Maintenance screen page 1 Configuration and Settings shown here SERATO B Configuration Hardware D Bypass Interlocks amp Permissives Van Device Operation amp Settings Compressor Flow A Y lt a ooo ES Press to open the Hardware screen Controller Status page 1 Controller Status The Controller Status page provides details on the controller and a selector to access individual I O module details Figure 50 Hardware Screen Page 1 Controller Status SSCC ES P Run Mode Memory 9 Controller Ok Used 89 0 C Battery Ok Bytes Free 57468 8 10 ok C Minor Fault C Major Fault ens ok i Slot 1 1769 1016 a F eoo ls A variety of status information is presented adjacent to the controller graphic image on the Controller Status page These indications are detailed in the following tables Rockwell Automation Publication 1711 UM002A EN P September 2012 165 Chapter8 Troubleshooting Table 91 Application Mode Status Indication P Run Mode Program Mode B Test Mode Table 92 Controller Status Indication P Controller Ok B Controller Fault Table 93 Battery Status Indication Battery Ok B Battery Fault Description The application is in Run mode This is the normal operating mode for the system The appli
186. reens and return to a main screen 2 3 showing the navigation toolbar Press of on the navigation toolbar The Maintenance screen appears Press topageforward or 4 to page backward as required to navigate to page one of the Maintenance screen shown here epuAmeeg Configuration Hardware A d amp tk Bypass Interlocks amp Permissives e we Device Operation amp Settings Compressor Flow A Vv a 600 ER P Press A3 to open the Parameter Configuration pop up screen shown here x SELECT 01 AIN Compressor Flow A Rockwell Automation Publication 1711 UM002A EN P September 2012 89 Chapter5 SSCC Configuration Parameter Configuration Screen Overview Table 61 Parameter Configuration Screen 90 Restore successful SELECT 01 AIN Compressor Flow v E P PARAMETERS CURR FLE A 01 Qs 1 Qd 2 Qdd 3 Alt 4 Ep 02 Eng Unit Scale Max EU M 03 Eng Unit Scale Min EU 0 0 04 Scaling zLinear 12Sqrt 1 1 05 Extrap Scaling 12Yes 0 0 06 Absolute Adjust EU 0 0 00 Parameter List Selector Parameter Details Table Display Features see Figure 9 for the location of these features e Parameter list selector e Parameter list action buttons e Parameter details table e Parameter list action status For example Restore successful Operational Features e Press A v totheright of the Select field to choose a parameter list e Press B to update
187. rge run load trouble Operational Features e Press Load to load the compressor security privilege required 0 S M or E e Press to unload the compressor security privilege required 0 S M or E Operator Screen Compressor Map Display Features e Compressor map for Surge Limit Line SLL Control Limit Line CLL and Surge Control Line SCL with live Operating Point OP e Anti surge calculated values for Head OP SLL Margin CLL SCL and Distance of OP from Control Limit Line e Summary of anti surge and capacity PID loop outputs and control values for configured loops Operational Features Compressor Details e Press the to open the Compressor Details popup screen for additional anti surge information and settings Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Table 6 Operator Screen Pages Continued Page Example Screen s Description egwAmBee8 Margin Control Base In Use ajy Offset Mgn 10 00 10 00 Percent Mgn 20 00 20 00 Max Mgn 20 00 mo 10 sc p Adj Type 1 SLL Pct Mgn 10 00 Offset Mgn 005 X 2000 0 01 Pct Contribution 10 01 Total Mgn a 000800 ES eguwADnee AntiSurge Primary Loop AntiSurge Secondary Loop 100 00 PV 0 00 EU Loop Not Used PV not Configured Cv 00000 gt eae epuABeeg AntiSurge Primary Loop AntiSurge Secondary Loop 100 00 100 00 PV SP 0 02 EU 62 00 25 53 EU cv
188. rge Control Valve 49 50 Typically Recycle Valve or Blow Off Valve Channel 1 Capacity Control Device 51 52 Typically Suction Valve Inlet Guide Vanes Discharge Valve or Cascade setpoint to Speed Controller Channel 2 Reserved for future 53 54 None Channel 3 Reserved for future 55 56 None Note For each analog output the application control signal 0 10096 open can be configured to actuate the device as air to open or air to close Rockwell Automation Publication 1711 UM002A EN P September 2012 23 Chapter3 SSCCHardware Description PanelView Plus Compact Graphic Terminal The SSCC is equipped with a PanelView Plus Compact color graphic terminal for a HMI This device is used as the interface for operation and configuration of the SSCC The HMI is installed on the door of the unit control panel and wiring for power and communication are provided from factory The standard HMI is the PanelView Plus Compact 600 with 5 5 in color touchscreen The PanelView Plus Compact 1000 with 10 4 in color touchscreen can be ordered as an option for the SSCC Figure 5 PanelView Plus Compact 600 Graphic Terminal Figure 6 PanelView Plus Compact 1000 Graphic Terminal 24 Rockwell Automation Publication 1711 UM002A EN P September 2012 Activate the HMI Chapter 4 Human Machine Interface The human machine interface HMI provides a single interface for configuration operation maintenance and troubleshooting the SCCC sy
189. rge Map IGV Position values EorA Tab 4 OPTrack Decoupling OP Track Max Track Limit value M Eor A OP Track Track Margin value M Eor A OP Track Track Rate value M Eor A Decoupling Initiate Point 1 value M Eor A Decoupling Release Point 2 value M Eor A Use Decoupling setting EorA Tab 5 ASC and CAP valves ASCV Open Slew Rate value M Eor A ASCV Close Slew Rate value M Eor A ASCV Max CV Limit value M Eor A ASCV Min CV Limit value M Eor A ASCV CV NotRun Unload Trip value M Eor A ASCV Position Deviation DB value M Eor A ASCV Position Deviation Time value M Eor A CapCV Open Slew Rate value M Eor A CapCV Close Slew Rate value M Eor A CapCV Max CV Limit value M Eor A CapCV Min CV Limit value M Eor A CapCV CV NotRun Unload Trip value M Eor A CapCV Position Deviation DB value M Eor A CapCV Position Deviation Time value M Eor A Tab 6 Surge Configuration Multi Surge Trip Quantity value EorA Multi Surge Trip Time value EorA Rate of Change Low value M Eor A Rate of Change Deadband value M Eor A Rate of Change Time value M Eor A Positional Surge Margin value M Eor A Reset Surge Count button EorA 48 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Table 29 Compressor Details Screen popup Continued Page Function Requiring Security Privilege User Roles Tab 7 Surge Test Activate
190. rnal DIN signal is in the Ready state If the DIN is not configured for use the status is always Ready Ready when the associated external DIN signal is in the Ready state If the DIN is not configured for use the status is always Ready Ready when the associated external DIN signal is in the Ready state If the DIN is not configured for use the status is always Ready Ready when the associated external DIN signal is in the Ready state If the DIN is not configured for use the status is always Ready Rockwell Automation Publication 1711 UM002A EN P September 2012 113 Chapter 6 SSCC Operation Note The name presented on the screen for each permissive is configurable The default names are presented in the above table You are encouraged to customize the names for the external Ready To Start permissives to provide a more meaningful name presented for the permissive signal Permissive Reset The status indications for permissive are non latching The Ready status green check mark and Not Ready status red X automatically update to show the present condition of the permissive Since the permissives do not latch it is not necessary to use the permissive Reset button on the Permissive screen Check and Reset a Permissive Example The following sequence provides an example of checking permissive indications Permissive status Indications epuAESS40 GFRLAAK K OB F Control Loops Ready Fd Anti Surge Viv Ready F
191. rol EN 74 The digital input device supports two modes of operation 1 PV from Input and 2 Substitute PV Under normal operations the mode should be PV from Input This mode uses the actual input signal applying the configured input state The value is presented as the process value PV in use Substitute PV mode allows the user to override the input value and substitute in its place the desired value This mode may be useful should a device fail require maintenance or troubleshooting Use of Substitute PV mode produces a warning Through configuration refer to parameter list 25 DINs Substitute PV the use of Substitute PV mode can be disallowed When disallowed the substitute PV features are absent from the device operation graphic and the device mode will be PV from Input The mode operation buttons and substitute PV value buttons require security privileges maintenance engineer or administrator When the device is in PV from Input mode the substitute PV value automatically tracks the scaled PV value This makes the transition to Substitute PV mode bumpless Rockwell Automation Publication 1711 UM002A EN P September 2012 137 Chapter6 SSCC Operation Digital Input Device Configuration Press E to display the Configuration page Many of the digital input channel configuration parameters may be adjusted on this page Figure 34 Digital Input Faceplate Configuration Page
192. rs range limits and initial values Table 59 Parameter List 29 Modbus Serial Port Configuration No Description Range Initial Value User configured Value 1555294 1 01 Slave ID The slave ID number identifies the controller number on a Modbus multi drop serial link Each controller on the multi drop link has a unique slave ID 02 Register Scaling Range 1000 32767 32767 The internal engineering unit values in the controller are scaled to this integer range for sending over the Modbus protocol Refer to Modbus Holding Registers on page 160 for details on the engineering unit ranges for Modbus variables 03 Baud Rate Configuration 110 300 600 1200 2400 19200 Enter the desired baud rate for the Modbus serial port Use parameter 7 of this list to trigger setting 4800 2600 19200 or 38400 the port to this baud rate 04 Parity Configuration 0 No Parity Enter the code to the right for the desired parity for the Modbus serial port Use parameter 7 of this 1 Odd Parity list to trigger setting the port to this parity 2 Even Parity 05 Baud Rate Readback 110 300 600 1200 2400 Leave the value of this parameter set to 0 read only parameter 4800 2600 12200 or 38400 The CURR column reads back the actual baud rate in use on the controller 06 Parity Readback 0 No Parity Leave the value of this parameter set to 0 read only parameter 1 Odd Parity The CURR column reads back the actual parity i
193. ry holes for the bolts and re hang the enclosure onto the bottom two bolts 5 Insert bolts through the holes in the top two mounting holes of the enclosure and into the wall Tighten all the bolts Rockwell Automation Publication 1711 UM002A EN P September 2012 15 Chapter2 Single Stage Compressor Controller Installation Power Distribution and Grounding 16 Alternate DC Sourced Power Connection Regulated 24V DC System can be powered by 24V DC or 120V AC Connect power to terminals shown in the supplied wiring drawings Terminal locations are identified in this photograph iE Hie Tse AC Sourced Power Connection 100 240V AC Instrument Ground Connection AC Safety Ground Connection There are two different ground connections that must be connected before power is applied to the system The AC safety ground is for all exposed metal surfaces of cabinets racks chassis ground connections etc All individual ground wiring interconnections are to be a minimum of 16 AWG copper wire green insulation Instrument ground is for all DC analog digital signal cable shield wires Reference ground wiring interconnections will be a minimum of 18 AWG copper wire green insulation with yellow tracer carried out by any Rockwell Automation or client personnel Failure to comply ATTENTION Good ground connections must be verified before any work can be may cause serious injury Check for a good electrical AC safet
194. s 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or 1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering units 0 999999 If transmitter is a gauge transmitter enter the amount to convert to absolute pressure If the transmitter is an absolute transmitter enter 0 Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or1 0 No low level alarm not to be used 1 Yes low level alarm to be used High Alarm Limit Value Engineering units 999999 999999 Low Alarm Limit Value Engineering units 999999 999999 DEM Alarm Deadband Engineering units 0 999999 EN Rockwell Automation Publication 1711 UM002A EN P September 2012 55 Chapter 5 SSCC Configuration 04 AIN Auxiliary Control Signal List 04 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 3 provided for an auxiliary control signal The auxiliary input signal is used for the following purposes e As the process variable PV for the anti surge secondary override PID loop or capacity primary or capacity secondary PID loops if selected The following table identifies the configuration parameters range limits and initial values Table 34 Parameter List 04
195. s first out B External Comp Trip 1 External Comp Trip 1 also tripped PP External Comp Trip 2 un Wd External Comp Trip 3 The appearance of the interlock Reset button indicates that reset is not available e Assume that the operator is logged in e The interlocks are still tripped rnal Con ip 4 E C lt a ce Ep A while later the interlock reset button is available 9t Pa A AN lt P gt indicating one or more of the tripped interlocks can be reset F4 External Comp Trip 1 Fj External Comp Trip 2 Fd External Comp Trip 3 End ees rnal Comp Trip 4 Press the interlock Reset button Rockwell Automation Publication 1711 UM002A EN P September 2012 Interlock Status Indications OFPRA SB 3e External Comp Trip 1 Fd External Comp Trip 2 Fad External Comp Trip 3 1l L OTTI HO 4 E t lt a ce m I NEKIK Fd External Comp Trip 1 Fd External Comp Trip 2 Fd External Comp Trip 3 External Lome Iri 4 2 lt a ce ce epuAmeeg Fi External Comp Trip 1 Fd External Comp Trip 2 Fd External Comp Trip 3 Fd External Comp Trip 4 lt a ce EP SSCC Operation Chapter 6 Observations and Actions After the interlock has been reset e External Comp Trip 4is normal check mark Yellow highlight still informs user that it was the first out e External Comp Trip 1 remains tripped red X The interlock Reset button is unavailable waiting for External Comp Trip 1 to return
196. s until all interlocks are normal and reset The grey appearance indicates the interlock is bypassed The check mark indicates the interlock status is normal The grey appearance indicates the interlock is bypassed The X indicates the interlock status is tripped Table 65 provides an explanation of each interlock Table 65 Description of Interlocks Interlock Multiple Surge Trip Operating Point Fault External Comp Trip 1 External Comp Trip 2 External Comp Trip 3 External Comp Trip 4 Explanation A number of surges have occurred within a defined period of time It would be unsafe to continue operation of the compressor The reason for the surges should be investigated The calculation for the compressor operating point OP has faulted This may be due to invalid configuration or failed transmitters that are necessary to determine the operating point The external compressor trip signal on the associated DIN channel has tripped The external compressor trip signal on the associated DIN channel has tripped The external compressor trip signal on the associated DIN channel has tripped The external compressor trip signal on the associated DIN channel has tripped Note The name presented on the screen for each interlock is configurable The default names are presented in the above table You are encouraged to customize the names for the external interlocks to provide a more meaningful name presented for the in
197. se as fast as possible so there is no need to limit this setpoint increasing rate Setpoint Decrement Rate Limit EU sec 099999 10000 Keep this parameter set to a large value The SCL decreasing rate is set by the OP track rate See 13 Surge and Margin Configuration on page 66 parameter 15 There is no need to further limit this setpoint decreasing rate PID Loop Deadband Engineering Units 96 Operating Point Defines a deadband about the setpoint which treats error as 0 and thus no change to control value output If used normally kept small lt 1 Proportional Action Calculation Type Choices 0 Calculate proportional based on change in PV 1 Calculate proportional based on error Keep this parameter set to 1 for this loop Use Interactive Tuning Choices 0 No Tuning parameters are non interacting 1 Yes Tuning parameters are interacting traditional Use for the ASC primary PID loop which uses adaptive tuning Keep this parameter set to 0 Control Action Choices 0 Reverse 1 Direct Used for the ASC primary PID loop Keep this parameter set to 0 for Reverse PID Control Value CV Maximum Limit Open Sets the maximum limit for the calculated PID control value output Normally this parameter will be kept at 100 PID Control Value CV Minimum Limit Open Sets the minimum limit for the calculated PID control value output Normally this parameter will be kept at 0 Rockwell Autom
198. sed on changes in the process variable 1 Error Proportional action is based on error When based on error the proportional action responds to changes in setpoint When based on PV the proportional action responds to changes in PV only and is not affected by setpoint changes Integral Tuning value Repeats minute 0 40 JR Derivative Tuning value seconds C MEN NN Interactive Tuning Choices 0or1 0 Non Interactive The proportional gain value does not interact with the integral or derivative contributions 1 Interactive The proportional gain is used to calculate the integral and derivative contributions The setting of 1 Interactive represents the traditional form of PID tuning behavior In other words increasing the gain also increases the integral and derivative contributions The setting of 0 Non Interactive calculates the integral and derivative contributions independent of the proportional gain The integral and derivative are calculated as if they have an effective gain of 1 PID Loop Control Action a k a Direction Choices 0or1 0 Reverse Acting 1 Direct Acting This parameter determines the direction the output moves in consequence to the direction the PV moves Direct An increasing PV will cause the output to increase Reverse A increasing PV will cause the output to decrease PID Control Value CV Maximum Limit 96 Open 100 The maximum limit imposed on the control value output
199. settings e Selection ofa process variable PV signal for the loop e Setpoint and associated limits ramp rates and behaviors e Control settings direct reverse action CV limits deadband e Loop tuning configuration and values When this loop has been configured for use the loop output is available to the min max selection for the capacity control The selector chooses the configured min max output of primary and secondary capacity PID loop outputs The following table identifies the configuration parameters range limits and initial values Table 51 Parameter List 21 Capacity Primary PID Loop No Description Range Initial Value User configured Value 01 02 03 07 78 Process Variable Selection Choices 0 4 0 Not configured 1 2 Q Compressor Flow AIN Channel 0 2 Ps Suction Pressure AIN Channel 1 3 Pd Discharge Pressure AIN Channel 2 4 Aux Auxiliary Control Signal AIN Channel 3 The scaled engineering unit value is used for the PV of the PID loop and the engineering unit range ofthe analog input channel is used for the PID loop PV engineering units Setpoint EU 999099 0 990009 The setpoint for the PID loop This value can be set here or using the PID loop faceplate It is included here to allow it to be saved to the non volatile memory of the HMI with the other parameters Setpoint Tracks PV when Loop is in Manual Choices 0or1 0 No Setpoint remains at its last value 1 Y
200. ssive is bypassed and will not affect the ready to start condition Normally the Permissive Configuration pop up screen is used to set the permissive bypassable configuration This parameter list is intended to allow this Bypassable configuration to be saved to the non volatile file memory of the HMI For each permissive the bypassable configuration choice is 0 or 1 0 Not Bypassable 1 Bypassable The following table identifies the configuration parameters range limits and initial values Table 58 Parameter List 28 Permissive Bypassable Configuration No Description Range Initial Value User configured Value 03 Capacity Valve Inlet Guide Vane Ready dort 04 Spare Permissive 0or1 These four Interlock positions are not presently used in the SSCC application S Wama 7700000000000 REC E amp mme MEC E CC CC CC CC CC ECC 13 Spare Permissives 0or1 14 These four permissive positions are not presently used in the SSCC application 15 16 86 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 29 Modbus Serial Port Configuration List 29 defines the settings used for the Modbus serial port configuration These parameters are used for the following settings e Set the slave ID and register scaling configuration e Set the serial port baud rate and parity e Read back the serial port baud rate and parity The following table identifies the configuration paramete
201. steady Active alarm present check Alarm screen for A Hi Lo Alarms details Control Fallback Strategies Yellow flashing Alarm cleared reset alarm on Alarm screen T 1 Information Blue steady Active alarm present check Alarm screen for a Surge Testing details Blue flashing Alarm cleared reset alarm on Alarm screen White solid No active alarms no alarms require reset To check the status of the Alarms press the Alarms button on the toolbar to open the Alarms screen Managing Alarms The SSCC alarms are managed from a single Alarm screen The features of the Alarm screen are shown in the following figure Figure 57 Alarm Screen Components y s EATR eA Alarm Select Indicator 2 35 54 PM Multiple Surge Trip 2 35 51 PM Compass SG Detected Alarm List 2 2926 PM Multiple Surge Tnp 22914 PM Compressor Surge Detected 2262 PM Multiple Surge Tnp 22326 PM Compressor Surge Detected Move Alarm Selector Page Up Alarm Reset Scroll Up Acknowledge All Alarms Scroll Down Acknowledge Selected Alarm Page Down Rockwell Automation Publication 1711 UM002A EN P September 2012 173 Chapter 8 174 Troubleshooting Within the alarm list the individual alarm message status is graphically represented based on the alarm state active or inactive and acknowledgement Ackd or not Ack d Alarm State Alarm Message Representation Active Severity Color Flashing Active Severity Color Steady In
202. stem This chapter familiarizes you with these general features and how to access them Further details are found later in this manual The operator interface requires entry of an Activation Key ID to activate the HMI for use Until the HMI has been successfully activated the HMI will only display the following screen Figure 7 HMI Activation Screen Rockwell Automation Product Not Activated System Serial Number C0109170 Product ID Humber PU Provide your Serial Humber and Product ID to your Authorized Rockwell Automation agent to receive your Activation Key ID Enter Activation Key ID Each SSCC requires a unique eight character HMI activation Key ID The Key ID can be provided from an Authorized Rockwell Automation agent You will need to provide them the System Serial Number and Product ID Number as shown on your Activation screen Rockwell Automation Publication 1711 UM002A EN P September 2012 25 Chapter4 Human Machine Interface Follow these steps to activate the HMI 1 On the Activation screen press the Enter Activation Key ID entry line The following keypad appears 2 Enter the Key ID using the touch keypad Note The characters in the Key ID are NOT case sensitive Only enter the eight character ID Do not enter any dashes spaces or other symbols For example if your agent provides the Key ID of 23F4 60BC only enter the eight characters 23F460BC or 23f460bc omitting the dash symbol I
203. t Anti Surge Control PID Loops Overview Anti surge control is provided through a primary PID loop configured to control the operating point relative to the surge control line In addition a secondary PID loop can be optionally configured often based on suction pressure or discharge pressure Page 5 of the Operator screen provides an overview of these two anti surge control PID loops Figure 21 Operator Screen Page 5 Example of A A e Configurable Secondary PID Loop AntiSurge Secondary Loop lt Faceplate configured 100 00 17 Blank Panel not configured PV signal type AntiSurge Secondary Loop u 1 i AntiSurge Primary Loop 100 00 PV SP 35 88 EU 50 00 Loop Hot Used PY not Configured 1 OOOO600 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 There are no direct operation features on this page To operate or tune the loops press PID to open the individual PID loop faceplate More details on the PID faceplate are provided later in this chapter These two PID loop are managed together through a min max selector control override selector and a control limiter to create a final control value for the anti surge control valve These control features are illustrated in the following function diagram C i ja umm j gt ano Min Max Override Selector Selector Slew Rates Select CVmin Override cy False CVmax
204. t Scale Min Limit EU 999999 999999 The scaled engineering unit value at 4 mA input Scaling Type Choices 0or 1 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering Units applicable to pressure and temperature signals 0 999999 E o Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0 or 1 0 No low level alarm not to be used 1 Yes low level alarm to be used High Alarm Limit Value Engineering Units 999999 999999 Low Alarm Limit Value Engineering Units 999999 999999 ME Alarm Deadband Engineering units 0 999999 0 Rockwell Automation Publication 1711 UM002A EN P September 2012 User configured 53 Chapter 5 SSCC Configuration 02 AIN Suction Pressure List 02 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 1 for suction pressure The suction pressure input is used for the following purposes e A variable in calculating the compressor head e As pressure compensation in the operating point calculation when flow usage is Qs Od or Qdd e As the process variable PV for the anti surge secondary override PID loop or capacity pri
205. t line by this distance the capacity control output will be held The value of DP1 should be further from 0 than DP2 In other words DP1 DP2 0 0 Decoupling Release Point DP2 1 This value defines the distance below the control limit line where decoupling action is released When the operating point moves within this distance of the control limit line the decoupling action is released and the capacity control output is free to move normally The value of DP2 should be closer to 0 than DP1 In other words DP1 lt DP2 lt 0 0 Rockwell Automation Publication 1711 UM002A EN P September 2012 Table 54 Parameter List 24 AINs Substitute PV SSCC Configuration Chapter 5 24 AINs Substitute PV List 24 defines whether to allow or dis allow the use of substitute PV for each analog input channel Substitute PV mode allows the user to override the actual measured and scaled analog input value with a substitute process value entered by the user The configuration setting for use of substitute PV mode is configured as one of the following values 0 Allow Substitute PV mode to be used 1 Dis Allow Substitute PV mode The following table identifies the configuration parameters range limits and initial values No Description Range Initial Value User configured Value 01 02 mese WA Wr Bem CO W ewhuwM ed a a oa Ag ESC EC nC EC Rockwell Automation Publication 1711 UM002A EN P Septe
206. t location type Flow element configuration base press and temp max flow for normalization security privilege required E or A Compressor base configuration base press and temp gas properties security privilege required E or A IGV method configuration security privilege required E or OP calc configuration error indications if present Compressor Details Faceplate Map tab Configuration Features Compressor map surge limit line configuration security privilege required E or A Map configuration error indications A if present Compressor Details Faceplate OP Tracking Decoupling tab Configuration Features OP tracking tuning properties security privilege required M E or A Decoupling tuning properties security privilege required M E or A Use decoupling configuration property security privilege required E or A Decoupling status Rockwell Automation Publication 1711 UM002A EN P September 2012 127 Chapter 6 128 SSCC Operation Table 73 Compressor Details Faceplate Continued Tab Sample Screen Description ASCY Head Base TT CapV Cond Dcpl CapV Config Test AntiSurge Valve Capacity Valve IGV Valve Slew Rates Valve Slew Rates Open sec 100 00 Open s sec 10 00 Close sec 2 00 Close sec 10 00 Control Limits Control Limits CV Max 100 00 CV Max 100 00 CV Min 0 00 CV Min 0 00 Override CV 100 00 Override CV 0 00 NotRun Unload
207. t module in Slot 2 Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Transmitter signal lt 3 6 mA Analog input raw count lt 250 Discharge pressure gt high alarm limit Discharge pressure lt low alarm limit Transmitter signal gt 20 4 mA Analog input raw count gt 10250 Transmitter signal lt 3 6 mA Analog input raw count lt 250 Discharge temperature gt high alarm limit Discharge temperature lt low alarm limit The external compressor trip signal connected to DIN channel 12 is in the Tripped condition As a result a compressor trip is generated The external compressor trip signal connected to DIN channel 13 is in the Tripped condition As a result a compressor trip is generated The external compressor trip signal connected to DIN channel 14 is in the Tripped condition As a result a compressor trip is generated The external compressor trip signal connected to DIN channel 15 is in the Tripped condition As a result a compressor trip is generated Incipient surge signal gt high alarm limit Triggered by Compressor Head Fault Without a calculated head the surge limit line SLL value cannot be determined by normal lookup table In this condition the SLL value is set to the largest OP value defined for the surge map to assure a minimum safe flow through the compressor Triggered by an inlet guide vane IGV position signal failure As a result IGV methods
208. te when input is On 62 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Configuration Chapter 5 10 Digital Output Channel Configuration List 10 defines the signal state for the all of the digital output channels The following table identifies the configuration parameters range limits and initial values Table 40 Parameter List 10 Digital Output Channel Configuration 01 02 03 04 05 06 Description Range Initial Value User configured Value Compressor Trip Output DO Channel 0 0or1 0 Normally de energized energize for compressor Trip 1 Normally energized de Energize for compressor Trip Compressor Run Output DO Channel 1 0or1 0 Normally de energized energize for compressor Run 1 Normally energized de energize for compressor Run Ready To Start Output DO Channel 2 0 or 1 0 Normally de energized energize for Ready To Start 1 Normally energized de energize for Ready To Start System Trouble Output DO Channel 3 0or 1 0 Normally de energized energize for system trouble 1 Normally energized de energize for system trouble Surge Alarm Output DO Channel 4 0or 1 0 Normally de energized energize for surge alarm 1 Normally energized de energize for surge alarm Compressor Load Output DO Channel 5 00r 1 0 Normally de energized energize for compressor Load 1 Normally energized de energize for compressor Load 11 Compressor Configurat
209. tected fav s yv Human Machine Interface Chapter 4 Alarms Screen Overview From any main screen press the Alarm icon X on the navigation toolbar to open the Alarm screen The Alarm screen has only one page containing an alarm list for the unit alarms Description Alarm Screen Display Features e List of alarms current and historical e Alarm colors represent severity levels e Flashing indicates Unacknowledged Steady indicates Acknowledged e Scrollable list maintains history of last 128 alarms Operational Features e Use A and Y tochoose an individual alarm for acknowledgement e Use and toscrollthrough the list one page at a time Press v X to acknowledge the selected alarm security privilege required 0 S M E or A e Press x v to acknowledge all the un acknowledged alarms in the list security privilege required 0 S M E or A e When available press gl to send an alarm reset to the application to reset the Summary Alarm icon indication security privilege required 0 S M E or A Rockwell Automation Publication 1711 UM002A EN P September 2012 33 Chapter4 Human Machine Interface Table 9 Warnings Screen Pages Page Example Screen 1 GFRAARKSH Level 1 Preventing Operation iae 2 S FARAHKGEROA Level 2 Function Disabled Bypassed Table 10 Trend Select Screen Pages Page Example Screen epuAmeeu Select Trend ASC01 Control ASCO02 Control
210. ter 6 100 SSCC Operation Figure 16 Capacity Control Type Discharge Throttling Example epuADmneeu Ps 2548 EU Pd 2553 EU Ts 106 98 EU Td 107 07 EU Qs 550 18 EU CV 10 00 Aux Ctrl PV CV 10 00 Dist OP CLL CV 100 00 wile dee Sr athe 6 07 T Pos 88595 CV Control Valve Open lt a Svinte m Pos Position Fdbk if configured Figure 17 Capacity Control Type Speed Setpoint to Speed Controller Example Pa 25 47 EU Pd 2553 EU Ts 106 88 EU Td 107 07 EU Os 0 00 EU CV 10 00 CV 10 00 Aux Ctrl PV 4 EU Dist OP CLL CV 100 00 i 6 08 Pos 9995 CV Speed Setpoint where 0 Minimum Governor rins O60000 E 10096 Maximum Governor Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Compressor Map The Compressor Map is page 3 of the Operator screen It provides a dynamic X Y plot for the compressor map key anti surge calculated values head OP SLL CLL SCL and margin and summary status for the anti surge and capacity control signals Key features of the Compressor Map page are represented in the following illustration Figure 18 Compressor Map Page Example epuADneeg 0 00 ASC 100 0 Dynamic Compressor Map co aaa Anti surge Y Axis Compressor Head X Axis Normalized Flow Q Qyay 0 05 Control SLL Surge Limit Line red 6 01 Summary CLL Control Limit Line green 8 06
211. terlock signal Latching Interlocks and Interlock Reset The status indications for interlocks are latching This traps any transitory interlocks that occurred on the system so they can be presented on the Interlocks screen When a tripped interlock has returned to normal it must be reset by pressing the interlock reset button on either page of the Interlock screen Rockwell Automation Publication 1711 UM002A EN P September 2012 109 Chapter 6 110 SSCC Operation The availability to perform the interlock reset is represented by its appearance on the screen Button Interlock Reset Availability Appearance 5 Interlock reset action not available due to C e There are no tripped interlocks e All tripped interlock indications remain tripped not returned to normal yet e Security privilege is required Interlock reset action is available e e Security privilege has been met operator supervisor maintenance engineer or administrator e One or more tripped interlocks has returned to normal Check and Reset an Interlock Example The following sequence provides an example of how to check and reset interlocks Interlock Status Indications Observations and Actions The Interlock icon status indicates tripped interlocks 9 P A A e Press the Interlock icon to open the Interlocks screen On page 2 of the Interlocks screen two of the external Pr Pa x A interlocks are shown tripped e External Comp Trip 4 wa
212. the corresponding parameter lists and parameter numbers used for configuration Table 82 Compressor Details Base Conditions Faceplate Information Parameter List Cross Reference Faceplate Configuration Item Security Parameter List Parameter Flow Element Base Press Abs EorA List 11 Param 06 Orifice Base Press Abs Flow Element Base Temp Abs EorA List 11 Param 05 Orifice Base Temp Abs Qmax for 0 EorA List 11 Param 07 Max Flow Qmax EU Flow Location read only EorA List 01 Param 01 Qs 1 Qd 2 Qdd 3 Alt 4 Compressor Base Press Abs EorA List 11 Param 02 Comp Base Press Abs Compressor Base Temp Abs EorA List 11 Param 01 Comp Base Temp Abs Compressor Base Gas MW EorA List 11 Param 14 Gas Molecular Weight Compressor Base Gas Z EorA List 11 Param 15 Gas Compressibility IGV Methods Map Uses IGV 0 No 1 Yes EorA List 11 Param 12 Map using IGV 1 Yes IGV Methods Min Limit EorA List 11 Param 13 IGV Min Limit 0 100 Compressor Details Surge Map Page Press to display the Compressor Details Surge Map page The following illustration details the features of the page Figure 43 Compressor Details Surge Map Page Page Navigation Close Screen Head Base Ma OPTrk ASCV Surge Surge X Cond P Depi CapV Config Test X Axis SQ Y Axis Head lav Pt 0 00 Pt 0 0 000 Pt 0 0 00 PEI 06 00 Pt i 0 000 Pt 4 0 00 Pt 2 0 00 Pt 2 0 000 Pt 2 0 00 Pt 3 0
213. to normal A while later the interlock Reset button is available indicating that the remaining tripped interlock can be reset Press the interlock Reset button All interlocks are normal The unit level interlock status indication on the toolbar is normal The interlock Reset button is dimmed there are no tripped interlocks remaining Rockwell Automation Publication 1711 UM002A EN P September 2012 111 Chapter6 SSCCOperation Permissives The overall unit permissive status is presented on the Permissives icon second from the right displayed on the navigation toolbar of any main screen epuABee8 The five icon status indications for permissives are described in this table Permissive Explanation of Interlock Status Compressor Ready To Icon Start Output All permissives healthy Ready gt Bypass is not enabled no yellow caution symbol Permissives status is unhealthy Not Ready e Bypass is not enabled no yellow caution symbol All permissives are healthy Ready A Bypass is enabled yellow caution symbol All non bypassed permissives are healthy Ready Pal One or more bypassed permissives are unhealthy Bypass is enabled yellow caution symbol Permissives status is unhealthy Not Ready Bypass is enabled yellow caution symbol To check the status of the individual permissives press the Permissive icon on the navigation toolbar to open the Permissive screen Figure 24 Permissive Screen Pages 1 and 2
214. trip 3 alarm message 175 external trip 4 alarm message 175 Rockwell Automation Publication 1711 UM002A EN P September 2012 183 Index 184 F fallback to fixed polytropic exponent warning 117 flow measurement instrument requirements 98 G ground connections 16 wire size 16 Hardware screen access 165 Controller Status page 165 Major Minor Faults page 167 PanelView Plus Maintenance page 168 Hardware Status screen security privileges 44 head calc config error 179 warning 116 Help screen description 37 HMI See human machine interface holding registers Modbus 160 human machine interface activate 25 exit graphics 168 login 39 logout 41 memory 93 navigate 27 security 38 set clock 168 toolbar 29 1 0 Module Detail screen access 168 1 0 modules 19 I 0 system status 166 icons toolbar 29 incipient surge alarm message 175 inlet guide vanes capacity control 99 inspect SSCC 14 installation location requirements 15 SSCC enclosure 15 tools 15 instrument ground 16 interlock check and reset 110 configure bypass 95 definition 107 descriptions 109 management features 12 reset 110 Status indications 109 toolbar icon status indications 108 interlock and permissive bypassed warning 116 interlock description edit 95 Interlocks Configuration screen access 93 security privileges 44 Interlocks screen description 35 security privileges 43 K key ID activation 25 legend trend 157 loa
215. ue at 4 mA input Scaling Type Choices 0or 1 0 Linear 1 Square root extraction applicable to flow signals Extrapolate Scaling if input beyond normal limits 0or 1 0 No damp EU value at min and max limits 1 Yes extrapolate EU value beyond limits Absolute Adjustment Engineering units 0 999999 Not applicable for this signal set to 0 Has Alarm High Level 0or 1 0 No high level alarm not to be used 1 Yes high level alarm to be used Has Alarm Low Level 0or 1 0 No low level alarm not to be used 1 Yes low level alarm to be used High Alarm Limit Value Engineering units 099999 999999 Low Alarm Limit Value Engineering units 999999 999999 MEN Alarm Deadband Engineering units 0 999999 DEN Rockwell Automation Publication 1711 UM002A EN P September 2012 59 Chapter 5 SSCC Configuration 08 AIN Multi use Signal B List 08 defines the usage engineering unit scaling and linearization and alarm configuration for the analog input channel 7 for multi use signal A The multi use signal input can be used for the following purposes e Avalve position feedback transmitter for either the anti surge valve or the capacity control valve guide vanes e The incipient surge detection signal from the optional SurgeGard device The following table identifies the configuration parameters range limits and initial values Note Multi use signal A and multi use signal B usage shou
216. urity Privilege User Roles Page 1 Operator 0 S MorE Page 2 Configuration All Loops EorA 46 Rockwell Automation Publication 1711 UM002A EN P September 2012 Human Machine Interface Chapter 4 Table 28 PID Loop Device Screen popup Continued Page Function Requiring Security Privilege User Roles Page 2 Configuration ASC Primary Loop with EorA Adaptive Tuning Fors Page 2 Configuration Other Loops with M Eor A Conventional Tuning META Table 29 Compressor Details Screen popup Page Function Requiring Security Privilege User Roles Tab 1 Compressor Head Ratio of Specific Heats value EorA Polytropic Efficiency value EorA Polytropic Exponent Type setting EorA Max Polytropic Exponent Limit value EorA Min Polytropic Exponent Limit value EorA Rockwell Automation Publication 1711 UM002A EN P September 2012 47 Chapter4 Human Machine Interface Table 29 Compressor Details Screen popup Continued Page Function Requiring Security Privilege User Roles Tab 2 Base Conditions Orifice Base Pressure value EorA Orifice Base Temperature value EorA Orifice Maximum Flow value EorA Compressor Base Pressure value EorA Compressor Base Temperature value EorA Gas Molecular Weight value EorA Gas Compressibility EorA Use IGV Position for Map setting EorA IGV Minimum Position Limit value EorA Tab 3 Surge Map Surge Map X axis OP values EorA Surge Map Y Axis Head values EorA Su
217. utomation Publication 1711 UM002A EN P September 2012 65 Chapter5 SSCC Configuration 13 Surge and Margin Configuration List 13 defines the surge detection and control margin properties These properties establish the following items e Control margin calculations which set the distance between the surge limit line SLL and the control limit line e Surge detection methods which detect surge based on changes to the operating point either positionally it falls below the SLL by a defined amount or rate of change it decreases rapidly exceeding a falling low threshold e Operating point tracking which establishes the surge control line SCL used as the setpoint for the anti surge primary PID loop The following table identifies the configuration parameters range limits and initial values Table 43 Parameter List 13 Surge and Margin Configuration No 01 02 03 004 05 06 66 Description Range Initial Value User configured Value Base Offset Margin The offset margin is one form of margin used to establish the distance from the surge limit line SLL to the control limit line CLL The base offset margin represents the min offset margin that will be used The offset margin in use can be incrementally adjusted manually by the operator or automatically on surge detection Base Percent Margin The percent margin is a second form of margin used to establish the distance from the S
218. uuuue 90 Parameter Dist ACOS Senna aea cto lote es UA rade wu ts womans 91 Interlock and Permissive Customization sees 93 Interlock Configuration Screen oues o butane iawn Eae sa 94 Permissive Configuration Screen 23 isaeniver b IER OR eens 95 Chapter 6 Operation Screen DEPalls ease d ouo Eo van EX IM em SUE ad d ete 97 COIIDIESSOPOVEPVIEW Sep ERE Evite pied exi Va paupe ded dide 27 Compressor MaDGoses neca suoniedwana dere Maancatiteds 101 Maron C Ono Do sen Moses ober o ta ene Ert 103 Anti Surge Control PID Loops Overview ssueuue 104 Capacity Control PID Loops Overview sseuuuess 106 Rockwell Automation Publication 1711 UM002A EN P September 2012 Modbus Interface Troubleshooting Index Table of Contents Checking Interlocks Permissives and Warnings 107 Inte toC Sae oo esa etnias Dae eerta dettes nus dd 107 Pern SIVE Sr uso daateu m etn d Ex Cabs een wea eee 112 bonn ETT 115 Compressor Start and Stop a ocv p qi pnt ux SPEM RRTPE IDE 118 Compressor Running Determination 0000s cece eee eens 120 Compressor Load Unload nsiand anita ee a ET sees 121 Device Faceplates oue wont bbb eibi aetates be EU E need 122 Accessing Device Faceplates odsiceuintwiviediebohecagaetenteds 128 Device Names and Device Selector cece eee eee eee 130 Analog Input Device Faceplate cuo ge Eo Eex oe Ru Peek neue 132 Analog Output Device Faceplate 2
219. value are used as a status indicator for the individual channel Visual Indication Example Explanation a HE Antizurge Chin Viv The grey color indicates the output is normal ny HE Antisurge Crir Viv The red color indicates a fault is reported The analog output channels are configured for output range of 4 20 mA with data format percent range This configuration generates the 4 20 mA output from a command range of 0 to 10000 counts The percent range configuration makes reading the output command as a percentage e g a command of 7500 is 75 0096 to the control device or 16 0 mA Alarms The overall unit Alarm status is presented on the Alarms button third from the left displayed on the Navigation Toolbar of any main screen egpuABeeg The alarm status is represented by the bell color and its steady or flashing status as explained in Table 98 on page 173 172 Rockwell Automation Publication 1711 UM002A EN P September 2012 Troubleshooting Chapter 8 Table 98 Unit Alarm Summary Icon Indications Alarm Alarm Severity Bell Color Status Explanation icon as 4 Fault Pink steady Active alarm present check Alarm screen for AX Hardware faults Xmtr faults details Pink flashing Alarm cleared reset alarm on Alarm screen eas 3 Exception Red steady Active alarm present check Alarm screen for A Compressor Trip conditions details Red flashing Alarm cleared reset alarm on Alarm screen ae 2 Alert Yellow
220. valve position error 174 aux control signal overrange 174 aux control signal underrange 174 auxiliary control signal high 174 auxiliary control signal low 174 capacity valve position error 174 comm interface failure 174 compressor flow high 174 compressor flow low 174 compressor flow overrange 174 compressor flow underrange 174 compressor head fault 174 compressor surge detected 174 controller failure 174 digital input module failure 174 digital output module failure 175 discharge press overrange 175 discharge press underrange 175 discharge pressure high 175 discharge pressure low 175 discharge temp overrange 175 discharge temp underrange 175 discharge temperature high 175 discharge temperature low 175 external trip 1 175 external trip 2 175 external trip 3 175 external trip 4 175 incipient surge 175 minimum flow fallback 175 minimum IGV fallback 175 multiple surge trip 176 multi use signal A overrange 175 multi use signal A underrange 175 multi use signal B overrange 175 multi use signal B underrange 175 operating point OP fault 176 suction press overrange 176 suction press underrange 176 Index suction pressure high 176 suction pressure low 176 suction temp overrange 176 suction temp underrange 176 suction temperature high 176 suction temperature low 176 surge test enabled 176 Alarm screen description 33 security privileges 43 alarms manage 173 reset 177 view 177 analog input channel assignment 22 chann
221. ve Position signal input pecu ASCV Out 5 100 00 ASCV Pos Ta 338 27 Capt Qut 96 0 00 CapCy Pos 96 PF omm u uL ba Capacity Valve Device Control Output Capacity Valve Device Position signal input 2 43 26 PM 4 4726 PM a sj il Be Hext Pen Compressor Compressor values of interest Compressor ES Compressor Head value Monday October 24 2011 Surge Limit Line value SLL e i Control Limit Line value CLL eL Incipient Surge input signal if configured 0 06 CLL 208 Incipient Surge 018 2 55 23 Phil 4 53 23 PM lad HN bh bi Hext Fen Aux How PV Auxiliary Control Signal and Compressor Flow Aux Flow PY ES Monday October 24 2011 Auxiliary Control PV input signal if configured Compressor Flow input signal as configured Qs Qd Qdd or Qalt Aux Control PV DOS Flow Value Tre 07 Am 0n 4 46 04 PH 4 53 04 PM a d il j ii Next Pen 156 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Using the Trend Detail Screen Features common to all of the Trend Detail screens are illustrated in Figure 48 Figure 48 Trend Details Screen Trend Detail Screen Name Current Day Date Trend Plot Area Analag Inputs ES E Monday October 24 2011 Pd EU Y Axis Scale ae Sage Trend Legend e Based on Pen EU scale 2547 From 1to 4 Pens e Use Next Pen to Td EU e Pen colors A0 04 10710 cycle through
222. ver range Under range IO Fault and Channel Not Configured For Use when conditions are 25 48 gt present e Visual indication of Input PV or Substitute PV modes Substitute PV Input PV Mode Operational Features A gr E Use Mode select buttons to choose between PV from input or Substitute PV mode security privilege 50 003 H 35 00 required M E or A e In Substitute PV mode enter the substitute PV value security privilege required M E or A Substitute PV Mode Analog Input Device Faceplate Configuration tab i E Display Features RE e Configuration parameter values viewable regardless of RR ARG Raw Input Scaled EU securit rivile e Maximum 10000 ls 50 00 y p g Minimum 0 0 00 Has Extend Scaling Square Root Extract Units EU Configuration Features Alarm Config e Customize the device name and unit of measure strings Has Hi Alarm w HiAlarm Limit 35 00 um Has Lo Alarm w LoAlarm Limit 10 00 security privilege required E or A Alarm DB 0 00 Configure engineering unit scaling security privilege required E or A e Configure alarm settings security privilege required E or A Rockwell Automation Publication 1711 UM002A EN P September 2012 Table 69 Analog Output Device Faceplate SSCCOperation Chapter 6 Tab Sample Screen Description 4 o E3 Antisurge Control valve Program 100 00 0 00 Controlled Variable Program Mode e E x ETE S d C
223. verview screen should appear as shown in Figure 26 Figure 26 Compressor Overview Ready to Start epwAneeg Fd 2504 EU Td flak EU Ps 24H88 t m om m Cc B cv 000 Dist OP CLL CV 100 00 10 04 Pos 99 98 DAT 3 Incip Srg lt O6o0000 ES The following key indications are present when the compressor is ready to start Indication Description Alarm Status Alarms clear AX If alarms are present they have been checked understood and operations ready to proceed Warning Status A No warnings If warnings are present they have been checked understood and operations ready to proceed Interlock Status Interlocks OK or p all non bypassed OK Compressor trip output Not Tripped Permissive Status Permissives Ready or od all non bypassed Ready ggg Ready to Start output Ready ASC Valve Anti surge valve CV at pre start override value Capacity Valve Device Capacity valve device CV at pre start override value if configured Rockwell Automation Publication 1711 UM002A EN P September 2012 119 Chapter6 SSCCOperation Compressor Running Determination 120 Compressor running condition is determined by one or more of the following conditions e Compressor running digital input status e Compressor head calculation gt threshold e Auxiliary control signal gt threshold When one of the above conditions is met for the configured on delay time then a
224. xamples and diagrams No patent liability is assumed by Rockwell Automation Inc with respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is prohibited Throughout this manual when necessary we use notes to make you aware of safety considerations WARNING Identifies information about practices or circumstances that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you identify a hazard avoid a hazard and recognize the consequence SHOCK HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that dangerous voltage may be present BURN HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that surfaces may reach dangerous temperatures gt eee IMPORTANT Identifies information that is critical for successful application and understanding of the product Allen Bradley CompactLogix PanelView Plus Compact Rockwell Software Rockwell Automation and TechConnect are trademarks of Rockwell Automation Inc Trademarks not belonging to Rockwell Automation are
225. xternal and internal permissives with first out indication Configurable permissive bypass features Ready to start output for interface to drive controller 12 Rockwell Automation Publication 1711 UM002A EN P September 2012 Single Stage Compressor Controller Components Chapter 2 Single Stage Compressor Controller Installation The Single State Compressor Controller SSCC is composed of the following components Enclosure CompactLogix controller Digital inputs Digital outputs Analog inputs Analog outputs PanelView Plus HMI All the SSCC required components are mounted wired and installed inside the units enclosure from the factory This section describes the steps for installation Figure 3 SSCC Panel Interior View CompactLogix Controller Internal Power Distribution Power from AC or DC Source E animnm DO Marshalling DI Al and A0 PanelView Plus Marshalling Terminals Mounted on Terminals Door Panel Rockwell Automation Publication 1711 UM002A EN P September 2012 13 Chapter2 Single Stage Compressor Controller Installation Mechanical Installation Electrostatic Precautions The electronic components of these systems are susceptible to electrostatic discharge Be sure to take the following precautions e Always wear an anti static wrist strap or equivalent when handling any electrostatic sensitive components e All electrostatic sensitive components will
226. y October 24 2011 p 4 35 58 PM ld a Monday October 24 201 4 40 58 Phi b b Gap 1 Control pec 4 41 15 PM b b PV OP 560 2 0 00 SP SCL 0 3 07 CN e 100 00 CLL 96 Q D fT mn Hext Fen P Value EU RE DAR Lr Lele SP Value EU 0 00 CW 55 0 00 Hext Fen PV Value EU SEO LL ELO ee tua SP Value EU 35 00 CV 96 9 8 en Hext Fen SSCC Operation Chapter 6 Trend Detail Description Variables Example Screen Cap02 Control Capacity Secondary PID Loop variables if configured Gap z2 Control ES Loop PV Process Variable as configured 1 T Monday October 24 2011 PV Value EU Loop SP Setpoint 000 Loop CV The PID output Control Value P Value El 0 80 CV 96 D 00 4 37 39 PM 4 41 38 Phi io ow P H Next Pen Analog Inputs Pressure and Temperature signals Analog Inputs ES Discharge Pressure Pd Mondav October 24 2011 ee P SAEN min Pd EU uction Pressure Ps 2553 Discharge Temperature Td Ps EU Suction Temperature Ts 2727 m Td EU 107 10 3 EU 106 53 00 4 39 38 Phi 4 42 36 PN il ow i b H Hext Fen Rockwell Automation Publication 1711 UM002A EN P September 2012 155 Chapter6 SSCCOperation Trend Detail Description Variables Example Screen Valve Control Anti Surge and Capacity Valve signals Valve Control ES Monday October 24 201 ASC Valve Control Output ASC Val
227. y control device valve IGV etc 150 Rockwell Automation Publication 1711 UM002A EN P September 2012 SSCC Operation Chapter 6 Table 85 lists the configuration items displayed on the Compressor Details Anti Surge and Capacity Valve page and the corresponding parameter lists and parameter numbers used for configuration Table 85 Compressor Details Anti Surge and Capacity Valve Faceplate Information Parameter List Cross Reference Faceplate Configuration Item Security Parameter List Parameter Valve Slew Rate Open 96 sec OpenSlewRate sec Valve Slew Rate Close sec CloseSlewRate sec Control Limit CV Max 96 CV Max 96 Control Limit CV Min 96 CV Min 96 Override CV NotRun Unload Trip Not Running CV 96 Position Deviation Pos Dev 96 Pos Dev Alm DB 96 Position Deviation Dev Time sec Pos Dev Alm Time sec Compressor Details Surge Configuration Page Surge Press contig to display the Compressor Details Surge Configuration page The following illustration details the features of the page Figure 46 Compressor Details Surge Configuration Page Page Navigation lose Screen Base OPTrk ASCV Surge Surge Head cond MP Deal CapV Config Test E3 Multi s urge Trip is Multi Surge Trip Rate of Change Surge Rate of Change Surge triggered when a Quantity 4 Rate sec 50 00 configuration parameters Quantity of Surges Time sec 30 DB v sec 10 00 based on a Rate averaged
228. y ground connection The electrical ground connection must be matched to the breakers or fuses used to protect the feeds to the system Check the integrity of the connection and the gauge of the wire used that it is sufficient to allow the breakers or fuses to trip Rockwell Automation Publication 1711 UM002A EN P September 2012 Single Stage Compressor Controller Installation Chapter 2 Single Stage Compressor First time power up must be done in stages to guard against system wide power Controller Powerup L 2 distribution faults The system s power distribution must be verified against the power distribution drawings Switch all circuit breakers to the Off position and open all fuses Energize the 24V DC or 120V AC feed and verify voltage at the main incoming terminals Close each 120V AC circuit breaker one at a time and verify that the corresponding power supply is energized Measure the output voltage of the power supply and verify it is delivering 24V DC Close each 24V DC fuse one at a time and verify the corresponding equipment receives 24V DC by measuring at the power terminals of the receiving equipment Close all 24V DC fuses checking that the system powers up as expected Rockwell Automation Publication 1711 UM002A EN P September 2012 17 Chapter2 Single Stage Compressor Controller Installation Notes 18 Rockwell Automation Publication 1711 UM002A EN P September 2012 Chapter

Single Stage Compressor Controller User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents