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Siemens Advanced Motor Master System for Medium Voltage Motors SAMMS-MV User's Manual

1. Current Ranges Overload Relay Size 18 72A H3A 60 240A H3B 192 400A H3C 320 720A H6 Permissible CT Ratios 5A secondary CT ratios functions Overload Relay Size Permissible CT Ratios F4A amp F5A H3A 30 5 40 5 50 5 75 5 100 5 H3B 100 5 150 5 200 5 250 5 300 5 400 5 H3C 300 5 400 5 500 5 600 5 H6 500 5 600 5 800 5 1000 5 43 Appendix A Technical Specifications Overload Specifications Overload classes Trip Characteristics Tripping threshold Tripping time Mechanical jam protection SAMMS MVX only Loss of load protection SAMMS MVX only Process current warning SAMMS MVX only Accuracy Phase unbalance protection Equipment ground fault protection Rotor protection Ambient temperature 44 Overload classes 2 through 23 with one second increments Tripping time at 6 x lec 95 of the overload class 5 Tripping time at 1 5 x lic within two minutes for warm conditions for all classes 1 1 0 05 x lic for motors with 1 00 service factor and 1 2 0 05 x Irc for motors with 1 15 service factor 20 minutes 81 15 x luc for motors with service factor 1 Sudden increase of the motor running current Pick up current adjustable from 120 to 400 in increments of 5 of lic Pick up time 360 msec Default values 200 luc Sudden decrease of motor running current Pick up current adjustable form 20 to 95 in increments of 5 of luc Pick up time 360 msec Default values
2. quence Status 1 Press the LIST key to view the control circuit number programmed at the factory The circuit numbers range from O through 9999 The UP DOWN and ENTER keys become disabled 2 For SAMMS MVE to change the settings you must be in the program mode The available selections are program blocks 10 16 refer to table 3 3 If you have loaded a custom circuit the designation for that circuit will be shown 3 Press the UP or DOWN key to scroll through the range of circuit numbers until the desired circuit number appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 o exit the program mode press and hold the Function key for several seconds The display will show ProY Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function N To enable or disable incomplete sequence press the EN TER key for a period of one second or more A will be displayed after the F1 on the HHC if incomplete sequence is enabled The SAMMS MV is shipped from the factory with the incomplete sequence enabled F2 Size for Overload Relay 1 Overload relay 1 protects single speed motors and two speed motors running on high speed The possible values are H3A H3B H3C and H6 Use the following procedure t
3. 2 4 2 Grounding the Device As stated in Guideline 5 ground each motor controller at a Single ground point The grounding path to earth must be permanent and continuous It must also be able to safely conduct ground fault currents that may occur in the system to ground through minimum impedance The earth ground does not carry any current under normal conditions Note Do not ground the SAMMS auxiliary current sensor ACT leads See figure 2 1 A DANGER Hazardous Voltages May be present on external surfaces of un grounded controllers and will cause death serious injury or substantial property damage Follow grounding instructions carefully ALARM RELAY OUTPUT Connect a ground bus to the chassis of each controller or to the chassis ofthe mounting equipment containing the earth ground through a grounding conductor Refer to Article 250 of the National Electrical Code for informa tion about the types and sizes of wire conductors and methods for safely grounding electrical equipment and components 2 4 3 Connecting the Device to a Control Power Source The SAMMS MV device requires a 12 VAC control power source in order to operate Connect the control power source to terminals 5 and 6 located on the top of the relay 2 4 4 Connecting Input and Output Devices to the SAMMS MV Device Connect your devices to the input and output connections on the SAMMS MV device as illustrated in Figure 2 2 2 4 5 Communications
4. Alternatively a custom across the line circuit may be downloaded from a PC A library of more than 40 typical control circuits exists for use with SAMMS MVX to meet applications ranging from simple across the line starters to complicated reduced voltage start ers With optional software the specified control circuit can be loaded either from the library or from a modified version into the microprocessor s memory in the factory or on site using an IBM PC compatible computer If you would like to learn more about this software package refer to SAMMS Custom Soft ware Manual Bulletin CP 3291 Highly specialized control circuits can be developed and exist ing circuits can be modified using an optional IBM PC compat ible software package This software uses conventional engi neering symbols along with pull down menus and a mouse to draw ladder diagrams When you have finished drawing the diagram the software translates the diagram into microproces sor machine code and downloads it into the SAMMS MV device s memory 1 2 5 Using the Standardized Control Panel The SAMMS MV device can be used for local and or remote control The SAMMS MVE device provides two light bars while the SAMMS MVX model provides three light bars Each model includes six pushbuttons with lights and tactile feedback You can program these light bars and pushbuttons for the various functions of the control circuit used The test reset button is used to te
5. SIEMENS SAMMS MV Sie mens Advanced Motor Master System for Medium Volta e User s Manual i ais SAMMS MVE Current Unbalance a SE gt 100 Trip usus tie pecu Trip L Impending Incomplete Sequence Alarm Loss of Load or Prcs Current Trip Loss External of SH or Trip Alarm Jam or RTD Input Trip CPU Failure or Low Voltage Ground Trip Fault Manual No MVC 9108 Current Unbalance Impending Trip Overload Trip Incomplete Sequence External Trip Alarm Reset Test A DANGER Electrical equipment contains hazardous voltages and high speed moving parts Will cause death serious personal injury or equipment damage Always de energize and ground the equipment before maintenance Maintenance should be performed only by qualified personnel The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in dangerous conditions which will cause severe personal injury or equipment damage Follow all safety instructions contained herein IMPORTANT The information contained herein is general in nature and not intended for specific application purposes It does not relieve the user of responsibility to use sound practices in application installation operation and maintenance of the equip ment purchased Siemens reserves the right to make changes in the specifica tions shown herein or to make improvements at any time without notice or obli
6. 5096 luc Settings from 0 to 100 of lec 5 of overload trip curve values 2 repeat accuracy Response time after 1 second Shifted trip threshold value to 0 9 x l c at 40 phase unbalance Response time after 1 4 seconds Pick up time 360 msec Pick up current Overload Relay Size Pick up Current Default H3A 7A lric 10A H3B 7A lec 10A H3C 7A ke 10A H6 7A lric 20A Cold stall time adjustable from 5 to 100 seconds in increments of 1 second If cold stall time is not known default value shall be according to the type of motor used Motor Type Cold Stall Time Open Drip Proof ODP 10 Seconds Totally Enclosed Fan Cooled EFC 20 Seconds Motor ambient temperature adjustable 0 70 C in increments of 5 C Default value 40 C Appendix A Technical Specifications Statistical Data Elapsed motor running time X10 Range 0 0 to 6553 65 536 hours Unit increments 10 hours Number of motor starts X10 Range 0 0 to 6553 65 536 hours Unit increments 10 operations Number of overload trips Range 0 to 9999 Increments 1 trip Current display Overload Relay Size Current Increments H3A 1A H3B 1A H3C 1A H6 2A Alarm Contacts SAMMS MVX Only Configuration N C N O Functions Impending Trip Overload Trip External Trip Ground Fault All of the above Software C onfigured C ontrol Devices Timers 4 Timing range Timers 1 and 2 0 200 seconds selectable Timer 3 1
7. First press the Reset Test button on the front panel of the device Second enable the autoreset with HHC function F8 e enable ON e disable OFF With autoreset enabled overload and external trios automati cally reset in 30 seconds after the trip Once the reset occurs the SAMMS MV device can be used to restart the motor unless the motor has reached its maximum temperature and has not cooled down to the full load level start inhibit Resetting after a trio does not interrupt or otherwise affect the ongoing motor thermal computations 3 2 Emergency Restarting In certain critical applications you may want to restart a hot motor even though restarting will damage or destroy the motor An emergency restart is a motor start that occurs after an overload trip on maximum allowable winding housing or rotor temperature but before all have cooled down to the full load temperature level 10096 or below In other words an emer genoy restart is a start that occurs before the restart time displayed by HHC function F10 reaches zero 26 With the emergenoy restart function enabled HHC function F11 the motor can be restarted regardless of the residual heat If the SAMMS MV device performs an emergency restart the winding housing and rotor temperatures in the motor model computations reset to zero Any time the motor is started whether an emergency restart or a normal start the emergency restart HHC function F11 is automaticall
8. O Rs emterrseadst T E sims H eessen us ume H Hk iesus H re es cer roan overt He sod pep oer L rs seenen Hm mum H jii H Table 3 7 SAMMS MV models and functions 24 3 Operating the SAMMS MV Device function Pressing the LIST key returns the active setting to the display There is one occasion when the LIST key is disabled making the corresponding functions inoperative In a SAMMS MV device with autoreset disabled at the factory the LIST key has no effect for F8 3 28 3 UP and DOWN Keys Use the UP and DOWN keys to step through the functions while the HHC is in the function mode When the HHC is in the display mode use the UP and DOWN keys to step through the values for a selected function You can use the keys in three ways 1 Single step press the key and release it 2 Slow scroll press the key and hold the key down for no longer than a two or three seconds 3 Fast scroll press the key and hold the key down long enough for the HHC to step through more than five steps The following information discusses how to operate the UP and DOWN keys in the function and display modes In the function mode the UP key increases the function number by one and the DOWN k
9. OVERLOAD TRIP S2 4 EXTERNAL TRIP S2 5 GROUND FAULT E H HEN BEN Hl NM E E HHH E Figure A 3 Alarm Contact Configuration Switches SAMMS MVX Only 48 Appendix A Technical Specifications 0 375 188 DIA 2X FOR MOUNTING Bd m 1 00 acm LABEL LOCATION 10 STUD WITH NUTS WASHER amp LOCKWASHER TYPICAL Ir e 2 94 ERE NV f U U U U U U U U U U U U U U U 20 GA LEADS TYPE INPUT CATALOG NUMBER 5A ACT SAMMS 5A ACT Figure A 4 SAMMS 54A Auxiliary Current Transformer 49 SIEMENS M Automation Inc Switchgear and Motor Control Division P O Box 29503 Raleigh NC 27626 0503 Bulletin MVC 9108 New 2M 0394FP Printed in U S A O 1994 Siemens Energy amp Automation Inc Siemens is a registered trademark of Siemens AG
10. Program mode Prompt for password To select digit To enter digit First digit selected Enter following digits in the same manner 0000 9999 ENTER Figure 3 13 Entering and changing passwords UP DOWN Authorized to change settings To select function to change settings 31 3 Operating the SAMMS MV Device 3 29 1 Program Mode Passwords To access the functions in program mode the user is required to enter a password The default password is 0000 and may be changed at any time To enter the password and have access to program mode 1 Press and hold the F unction key for several seconds until dISP is displayed 2 Press the UP or DOWN key to change to the program mode The display reads Prog 3 Press the ENTER key and the display shows HHHO the prompt for entering the password 4 Press the UP or DOWN key to select the first digit then press ENTER The display reads HHO 5 Continue to select password digits and press ENTER to enter each digit 6 After correctly entering the four digit password the display reads and pressing ENTER gives access to the functions in program mode 7 lf the password was entered incorrectly the display will read Err Press the ENTER key to return to program mode and try again To change the password 1 Enter the password as described above 2 With the password entered and the display
11. 8 Ladder symbols used with the SAMMS MV device sheet 2 OOGQOCGQOCOCQCGQOCQOCGOQOCQQCCQQ0 5 6 8 9 10 11 12 13 14 15 16 SC O ES STOP or OFF O AUTO or L1 Garment VARIABLE Unbalance VARIABLE o OFF or L2 a VARIABLE VARIABLE HAND or L3 VARIABLE O O Incomplete Sequence O External Trip Alarm VARIABLE VARIABLE Reset Test LJ STOP or OFF Figure 3 4 Assignment of pushbuttons and light bars 14 3 Operating the SAMMS MV Device Input Assignments Starter Program Control Type PB1 PB2 PB3 PB4 PB5 PB6 Type Block Preloaded in FVNR PB10 LOCAL 2 WIRE OFF ON SE ROR en E pr ONS J po dq WE can be downloaded ANA re NR res NN NN GE M ze um 7 ee E EH De SS NINE EN NN NNI ee UNE QUU CINA E eg d Drs HAND FVR PB19 LOCAL 3 WIRE REMOTE 2 WIRE STOP FWD AUTO AUTO FVNR Z JJ in SAMMS MVX FVR FVR Ej Available with SAMMS MVX only AUTO AUTO FVR PB20 LOCAL REMOTE 2 WIRE STOP FWD HAND FVR PB21 LOCAL REMOTE 3 WIRE SIOP FWD FVR PB23 REMOTE 3 WIRE DEI FVR PB24 LOCAL REMOTE 3 WIRE STOP FWD ELECTRICALLY INTERLOCKED 3 pr mm E E E Se 7 EN a C Se SS IS ESPON PERS ow e T ow pn SS RS E ES DES
12. In such applications use function F5 to select the full load current for low speed operation 3 16 Jam Protection SAMMS MVX Only Certain mechanical loads especially those containing gears are susceptible to jamming Jam protection can prevent dam age to the motor and the driven equipment by quickly tripping the motor off line in the event of a jam If you have enabled jam protection you may adjust the jam trip level from 120 40096 of Lc The jam trip time is 360 msec SAMMS MVX is normally shipped with jam protection enabled with a trip level of 20096 l o See Figure 3 11 Jam protection is locked out for 5 times the overload class after a start speed or direction change If the jam limits are exceeded the motor is tripped off line and the External Trip LED on the front panel solidly illuminates You can enable jam protection using HHC function F23 e enabled ON e disabled OFF 3 17 Loss of Load Protection Warning SAMMS MVX Only If the running current of the motor suddenly drops below 20 to 9596 adjustable of its previous reading in 360 msec a loss of load has occurred Such a loss of load could be due to a broken belt or loss of back pressure in a pump Loss of load detection is locked out for five times the overload class time after a start direction or speed change See Figure 3 11 You can select loss of load protection or warning using HHC function F24 e protection ON e warning OFF With protection
13. Intelligent Reduced Voltage Starting SAMMS MVX Only Intelligent reduced voltage starting is provided in all standard reduced voltage Siemens starters The advantage of this fea ture is that the transition from reduced to full voltage is deter mined by the magnitude of the actual motor current and not by a timer This optimizes the transition When a motor with intelligent reduced voltage starting is started a 30 second timer is energized If the timer times out the transition to full voltage commences as a fail safe measure If before the 30 second timer times out the motor current drops to below the full load current setting the transition commences The state of the RUN contactor whose auxiliary contact is connected to Remote input 4 pin 9 is checked one second after the transition If the contactor is not closed an incomplete sequence trip occurs 3 9 Ridethrough Upon Loss of Power SAMMS MVX Only If a motor is running and control power is lost the motor restarts automatically with two wire control as soon as power is re stored With three wire control you must restart the motor manually The optional ridethrough feature available with SAMMS MVX allows three wire controls to ride through power outages of up to one second This feature is especially useful where the power system is subject to momentary interruptions If while the motor is running poweris lost to a three wire control having the ridethrough option the
14. Type iti T T TEFC OR Stopped 80 C to 9900 s 6000 s 29 C Running Idle 80 C to 7200s 4500 s 39 4 C Table 3 4 Motor time constants 24 TEFC motors include the following types of motors e Totally Enclosed Fan Cooled e Totally Enclosed Fan Cooled Explosion Proof e Totally Enclosed Air to Air Cooled TEAAC ODP motors include the following types of motors Drip Proof Weather Protected WP 1 Weather Protected II WP 2 Open Drip Proof Totally Enclosed Water to Air Cooled TEWAC 3 24 Normalized Temperature Rise for Class B and Class F Insulation Steady state and maximum winding temperature are functions of the motor s insulation class In this motor model normalized temperature rise for both Class B and Class F insulation are used The motor winding temperature is displayed as a per centage of the steady state full load temperature rise as shown in Table 3 5 Class F Insulation Class B Insulation Full Load Temperature Rise Boundary Parameters Steady State 80 C 105 C Temperature rise at full load current 185 C 140 C Maximum allowed winding temperature Table 3 5 Steady state and maximum winding temperature rise 3 25 Ground Fault Detection In SAMMS MV devices HHC function F12 selects ground fault protection or warning e protection ON e warning OFF The device detects a ground fault if the fault current exceeds the pickup level for 360 ms
15. change to ON Note The motor can be damaged if restarted before it is allowed to cool The SUrE display allows you to reconsider 35 3 Operating the SAMMS MV Device your actions before pressing the ENTER key a second time to select the ON setting 6 Repeat Step 3 if you select an incorrect setting 7 If you are in the program mode press and hold the F unction key for several seconds to exit The display will show Prog Press the UP or DOWN key to change to the display mode 8 Press the F unction key to go to other functions F12 Ground Fault Protection or Warning 1 Press the LIST key to view the active ground fault detection setting ON or OFF The factory default setting is warning OFF and the other setting is protection ON a When warning OFF is selected the Ground Fault LED flashes if the ground current increases beyond the pickup level The LED stops flashing as soon as the current drops below the pickup level D When protection ON is selected a ground current above the pickup level will cause a trip The motor stops and the Ground Fault LED is steadily lit You must reset the unit before the motor can be restarted 2 To change the setting you must be in program mode 3 o change the setting press the UP or DOWN key to display the setting options then press ENTER to select the setting that is shown The display blanks while the ENTER key is pressed 4 Repeat Step 3 if you select a
16. configure all four timers as on delay timers however if needed you can configure the two adjustable timers timing relays TR1 and TR2 as either on delay or off delay timers Using the Hand Held Communicator you can program timing relays TR1 and TR2 from O through 200 seconds functions F13 and F14 Timing relay TR3 has a fixed 1 second delay and timing relay TR4 has a fixed 30 seconds delay Table 3 1 illustrates the type of timers used on the device and their ranges TRY Programmable on delay or 0 200 off delay TR2 Programmable on delay or 0 200 off delay Table 3 1 Types of software tming relays Pilot LEDs The SAMMS MVX device contains three light bars on the front panel while the SAMMS MVE contains two light bars Light bar L1 is reserved and must be used as the STOP or OFF LED You can configure L2 and L3 at your discretion The Hand Off and Auto LEDs correspond to the Hand Off and Auto pushbuttons on the front panel as illustrated in Figure 3 4 You can use the Incomplete Sequence LED in reduced voltage applications or to verify contactor operation Refer to Figure 3 4 for the location of the LEDs and Table 3 2 for a description of the LED states Flashing Pilot LEDs The front panel contains two or three flashing light bars that indicate various conditions such as on delay timing These flashing light bars L1 L2 and L3 as defined above indicate different output devices if they are flashing rather than if they a
17. sections 3 28 1 The F unction Key When you press the Function key the function mode is selected and the HHC displays the number of the selected function preceded by F With the HHC in the function mode use the UP and DOWN keys to step from one function to the next 3 28 2 The LIST Key When you press the LIST key the display mode is selected and the HHC displays the value corresponding to the selected function If the selected function is a set point the HHC displays the actual setting If the selected function is a measured quantity the HHC displays the value of the measured quantity In the display mode use the UP and DOWN keys to step through the range of possible set points for the selected 3 Operating the SAMMS MV Device SAMMS MV Function Number Function SAMMS MVX SAMMS MVE e emere o BEE m ees 1 A 5 setroekeiszResed H russian Fa Far pray rents T E rieiomeifrRN2 H 5A CT primary current low speed if used Doo e m ewe EECH rk Verg A s oseewesestermghzg H Rooster m G H BCEE REECH Fr Ereenoresit TT Fs senes EECH Hm aentasgkpam T 8 inet H in BEE Fs uera eege Fs arssesinaimeenmi EECH eege
18. service factor F6 type of motor construction Open Drip Proof ODP or Totally Enclosed Fan Cooled EFC F6 cold stall time if available F7 e motor ambient temperature FO 3 11 Motor Ambient Temperature Motors are used in a wide range of temperatures However motors designed according to NEMA standards are rated at 40 C ambient temperature he SAMMS MV allows you to decrease or increase the motor s thermal capacity according to the motor s ambient 17 3 Operating the SAMMS MV Device 180 Max Allowable Stator Winding Temperature Rotor Temperature 160 140 NO O e O Winding Temperature ATT Temperature Rise 40 20 U 1000 2000 3000 4000 5000 6000 7000 Time in Seconds Motor Start I O E Overvaal a7 Motor Start Motor Current N O O E E H U 1000 2000 3000 4000 5000 6000 7000 Time in Seconds Figure 3 5 ODP motor thermal signature 3 Operating the SAMMS MV Device Max Rotor Temperature Rotor Temperature 0 pes 2 Fa bai KC 0 a 5 e Max Winding Temperature Motor Start K T nm Motor Stopped 0 0 5 0 Winding Temperature Figure 3 6 Rotor and winding temperature during 10 second motor stall temperature You can select ambient temperature from O to 70 C in increments of 5 C with HHC function FO Important Do not use this featu
19. showing press the UP or DOWN key to enter change mode The display reads CH9 3 Press the ENTER key and the display shows HHHO the prompt for entering the new password 4 Enter the new password in the same way described above After entering all four digits of the new password the display will again display HHHO 5 Enter the new password a second time If it was entered correctly the display reads donE and pressing ENTER gives access to the functions in program mode 6 If the password was entered incorrectly the display will read Err Press the ENTER key to return to program mode and try again 3 29 2 SAMMS MV Functions FO Ambient Temperature 1 Press the LIST key to view the ambient temperature se lected The default value is 40 C and the range of possible values is from O C to 70 C in increments of 5 C 2 To change the setting you must be in program mode 32 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 To exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode F1 Control Circuit Number and Incomplete Se
20. trips press the LIST key CLr is displayed 2 Press the ENTER key SUrE is displayed 3 Press the ENTER key again to zero the motor data 4 To return to Step 1 press the LIST key at any time 5 The UP and DOWN keys are disabled for this function 6 Press the Function key to go to other functions ER 3 Operating the SAMMS MV Device F22 Process Current Warning Level SAMMS MVX Only 1 Press the LIST key to view the active process current level The value represents the percentage of the full load current setting above which a motor current causes the External Trip LED to flash The function is disabled for five times the class time after starting or after a speed or direction change The range of settings is in 196 increments from zero OFF through 100 The factory default is OFF 2 To change the setting you must be in program mode 3 o change the setting press the UP or DOWN key until the desired setting is displayed then press the ENTER key to select the setting The display blanks while the ENTER key is pressed 3 Return to Step 3 if you select an incorrect setting 5 To exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the Function key to go to other functions F23 Jam Protection SAMMS MVX Only Press the LIST key to view the active jam protection setting ON or O
21. 2 is required The SAMMS MV device is a multi functional device offering the following advanced motor protection for medium voltage motors pre programmed control circuits standardized control panel with input output devices replac ing conventional push buttons pilot lights and selector switches diagnostics statistical motor data real time metering local display of all motor and control circuit data open architecture communications using the ACCESS sys tem Note Ihe SAMMS MV device does not replace the disconnect device drawout contactor mounting or isolating switch or the contactor itself Section 2 Installing the SAMMS MV Device oection 4 Troubleshooting the SAMMS MV Device Appendix A Technical Specifications of the SAMMS MV Device 1 Introduction gt E EE O o m N asaaaa SIEMENS SAMMS MVE Current Unbalance Impending Figure 1 1 SAMMS MV front view 1 2 1 The SAMMS MV Device Models The SAMMS MV device is available in two models SAMMS MVE and SAMMS MVX Each model meets the various demands of industrial and commercial specifications and installations Table 1 2 compares the features of each model The SAMMS MV device is designed for critical process control where prevention of downtime is critical It offers motor control and protection along with motor diagnostic and motor driven equipment protection Engineering and operating personnel have access to important data enabling them
22. 25PD PB32 LOCAL 2 WIRE OFF LOW HIGH 1W CT OR VT 25PD PB33 LOCAL 3 WIRE SIOP LOW HIGH 1W CT OR VT 25PD PB34 LOCAL 3 WIRE REMOTE 2 WIRE STOP LOW HIGH HAND 1W CT OR VT 25PD PB35 LOCAL REMOTE 2 WIRE STOP LOW HIGH HAND 1W CT OR VT E AUTO AUTO 25PD PB36 LOCAL REMOTE 3 WIRE STOP LOW HIGH 1W CT OR VT 25PD PB37 REMOTE 2 WIRE 1W CT OR VT 25PD PB38 REMOTE 3 WIRE 1W CT OR VT Table 3 3 Standard control circuits 1 O1 3 Operating the SAMMS MV Device Input Assignments otarter Program Control Type D I PB2 PB3 PB4 PBS PB6 Type Block Available with 2SPD PB39 LOCAL 2 WIRE OFF LOW HIGH SAMMS MVX 1W CH omy 2SPD PB40 LOCAL 3 WIRE STOP LOW HIGH 1W CH 2SPD PB41 LOCAL 3 WIRE REMOTE 2 WIRE STOP LOW HIGH HAND OFF AUTO 1W CH 2SPD PB42 LOCAL REMOTE 2 WIRE STOP LOW HIGH HAND 1W CH 2SPD PB43 LOCAL REMOTE 3 WIRE STOP LOW HIGH 1W CH 2SPD PB44 REMOTE 2 WIRE 1W CH 2SPD PB45 REMOTE 3 WIRE 1W CH AUTO RVA LOCAL 2 WIRE Auto TX RVA PB47 LOCAL 3 WIRE STOP START Auto TX RVA PB48 LOCAL 3 WIRE REMOTE 2 WIRE STOP START Auto TX RVA PB49 LOCAL REMOTE 2 WIRE STOP Auto TX RVA PB50 LOCAL REMOTE 3 WIRE STOP START Auto TX RVA PB51 REMOTE 2 WIRE Auto TX RVA PB52 REMOTE 3 WIRE mm TX a RENE 2 WIRE Reactor RVA PB302 LOCAL 3 WIRE STOP START Reactor RVA PB303 LOCAL 3 WIRE REMOTE 2 WIRE STOP START HAND OFF AUTO Reactor RVA PB
23. 304 LOCAL REMOTE 2 WIRE STOP HAND OFF AUTO Reactor RVA PB305 LOCAL REMOTE 3 WIRE STOP START Reactor RVA PB306 REMOTE 2 WIRE Reactor RVA PB307 REMOTE 3 WIRE Reactor Table 3 3 Standard control circuits continued AUTO AUTO 16 3 Operating the SAMMS MV Device 3 7 Incomplete Sequence Sometimes the motor contactors do not respond in a timely manner to start stop transition speed or direction change commands from the controller If the SAMMS MV device does not detect motor current one second after issuing a start command or if the SAMMS MV device detects motor current one second after issuing a stop command an Incomplete Sequence trip occurs The motor contactors are opened and the Incomplete Sequence LED illuminates solidly In standard reduced voltage autotransformer RVA starters an incomplete sequence also occurs If the remote RUN seal in contact wired to pin 9 does not close within one second of the transition from starting to full soeed operation This function can be disabled permanently when configured at the factory You can also disable it with the Hand Held Communicator to the SAMMS MV device This is helpful when the controller is tested before connecting to the motor After connecting the HHC use the function UP and DOWN buttons to select F1 While pressing the ENTER button for a period of one second push START Repeating the same process enables the incomplete sequence protection function 3 8
24. Connection The SAMMS MV device is equipped with an RS 485 commu nications port on the back of the device The communications port allows connection to a communications module which 115VAC CPT INPUT 12VAC CPT INPUT 12VAC CPT INPUT SEET 1 2 3 4 6 7 8 9 10 11 12 13 14 15 16 O SIEMENS SAMMS MVX LED LED on LED Flashing N O Current Unbalance Current gt 40 20 40 Unbalance Impending gt 110 gt 100 Trip lt 110 O Impending Trip Start Overload Trip Overload Inhibit Incomplete Sequence Trip stemal Trip Loss Alarm Loss Trip Alarm of Load or of Load or Jam or Prcs Current RTD Input CPU Trip CPU Failure or Fault Low Voltage O Ground Fault C Fault O Trip Ground O Overload Trip O Incomplete Sequence O External Trip Alarm Reset Test III Figure 2 2 Terminal block assignments 2 Installing the SAMMS MV Device enables the SAMMS MV to communicate with a remote super visory device Examples of the remote supervisory device include the Power Monitor display and monitoring unit a Standard personal computer running the Power M
25. FF The factory default setting is ON If jam protection is enabled ON and the motor running current increases to the pickup current value within 360 msec the motor will trip off line and the External Trip LED is steadily lit The function is disabled for five times the class time after starting or after a speed or direction change 2 To change the setting you must be in program mode 3 o change the protection setting press the UP or DOWN key to display ON or OFF then press ENTER to select the setting that is shown The display blanks while the ENTER key is pressed 4 Return to Step 3 if you select an incorrect setting 5 To exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F23A Jam Pickup Current SAMMS MVX Only 1 Press the LIST key to view the jam current pickup value in use he range of possible values is between 12096 and 40096 to the FLC in increments of 596 The factory default is 20096 2 To change the setting you must be in program mode 3 o change the setting press the UP or DOWN key until the desired setting is displayed then press the ENTER key to select the setting The display blanks while the ENTER key Is pressed 4 To exit the program mode press and hold the Function key 38 for several seconds The display
26. O00 Control Type L Local and or Remote Control Alarm Contacts Configuration SAMMS MVX Only 0 None Normally Closed Contacts N C 2 Normally Open Contacts N O l Alarm Contacts Output SAMMS MVX Only Any of the Below Impending Trip Overload Trip External Trip Ground Fault None mm DO E Loss of Voltage SAMMS MVX Only L Loss of Voltage Ridethrough 0 None Ground Fault G Ground Fault Protection 0 None Control Circuit Number Control Circuit Number Loaded at Factory 0000 None Figure A 1 Catalog Number and Configuration Breakdown for SAMMS MV 47 Appendix A Technical Specifications FRONT OOOOOOOOOOOOOOO00 1 2 3 4 5 6 7 8 9 10 1 12 13 14 15 16 1 010 2 50 02 4X 125 DIA X 375 DEEP FOR 6 SELF TAPPING MOUNTING SCREWS SWITCH FUNCTION 01 1 NORMALLY OPEN 91 2 NORMALLY CLOSED S2 1 ANY OF THE BELOW S2 2 IMPENDING TRIP S2 3
27. Reduced voltage F3 F5 or F8 Control circuits Seven preloaded selectable with Any downloadable control circuit HHC May download any custom across the line control circuit Change settings requires password omm ET Light bars Two Three Table 1 2 SAMMS MV models 2 Installing the SAMMS MV Device 2 Installing the SAMMS MV Device This section provides instructions for installing the SAMMS MV device You should adapt these instructions to suit the needs of your installation and equipment 2 1 Receiving and Storing the SAMMS MV Device Thoroughly inspect the equipment before accepting the ship ment from the transportation company Compare each item received against the packing list and report any shortages or damaged equipment to the carrier If you are not going to install the SAMMS MV device immedi ately store it in a clean dry location at ambient temperatures from 40 C to 85 C The surrounding air should not contain any corrosive fumes or electrically conductive contaminants The storage location should prevent condensation from forming within the equipment enclosure Note Improper storage can cause equipment damage Follow all storage instructions carefully Failure to follow storage in structions will void the warranty 2 2 Where to Locate the Device You can locate the SAMMS MV device and its associated devices in most industrial equipment environments Unless the device is designed for specific requ
28. SSEe O OL sent LU ITI O Z J WM zeegt G sept OL sse D gL Sept ez sept OO LJ UUM SIOIOU DJOO JO MNO OlJSUSJOCIJEYO jueJno euul Z 6 oJnBDiJ SONOO3S 20 3 Operating the SAMMS MV Device GU LJ UM SJOJOW WIEM JO MNO OlSUSJOCJEYO JUSIUNO SWI OLS aunbi4 zeegt G sept 8 Sse 2 OL eent LU m O Z J WM GL L 4S UUM SIOIOLU pJOO 10 e uno onsuejoereuo 1ueuno euui e e eJnBiJ Z sept G sept 0L sent GL Sp c Sp SGNOOAS 21 3 Operating the SAMMS MV Device 100000 Motor running current at full load current 10000 V4 Loss of load adjustable from Jam protection 20 to 90 of adjustable from rated FLC 120 to 40096 of FLC 1000 o S Q Cold stall time B o Class 5 curve adjustable from m 5 to 100 seconds 10 Jam and loss of a protection persistence delay 5 times overload class Motor starting current 600 rated full load current yy RB ratio FLC Figure 3 11 Motor protection graph 22 3 Operating the SAMMS MV Device 3 13 Ultimate Trip Level and Service Factor The ultimate trip level is the maximum continuous current that does not cause an overload trip Any higher current applied indefinitely to an unprotected motor will ultimately damage it The ultimate trip level for motors with a unity service factor is 110 of the full load current setting For motors with a service factor of 1 15 the ultimate trip level is 12096 You can select a servi
29. ST key to view the active cold stall time in use The range of possible values is between 5 and 100 seconds in increments of one second The factory default value is 10 seconds If the cold stall time is more than 100 seconds enter 100 2 o change the setting you must be in program mode 3 To change the setting press the UP or DOWN key to scroll through the range of settings until the selected setting appears 4 Press the ENTER key to change the active setting to the selected value The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting If the overload class selected exceeds the cold stall time the word SUrE appears on the display requiring reentry before accepting the data Important The word SUrE is used as a reminder that supplemental protection is required if the motor acceleration time overload class exceeds the allowable stall time for the motor A speed switch should be used as an input source to open the contactor if the switch senses a locked rotor or stall condition 5 o exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function 3 Operating the SAMMS MV Device F8 Autoreset SAMMS MVX Only A DANGER Automatic Reset Will cause death or serious injury Do not use auto
30. ady Light not Illuminated Improper Remote Operation Improper Alarm Contact Operation Improper Light Operation Improper Local Operation Improper Contactor Operation Cannot Change HHC Settings Improper SAMMS MV Operation 42 Troubleshooting Guide Main Cause Indicates a problem in the microprocessor or a low voltage condition Indicates the ground fault current exceeded the threshold If ground fault protection was selected the ground fault LED illuminates solidly and the motor stops If ground fault warning was selected the ground fault LED flashes and the motor continues to run Usually indicates lack of control power Indicates connection or operator error Indicates connection error Usually indicates programming error Operator error Connection error Usually indicates motor is running Usually indicates improper grounding or noise interference Remedy Verify voltage between terminals 5 and 6 is more than 10 VAC If fault persists call Siemens The cause of the ground fault should be determined and removed before using the motor again F16 on the HHC displays the ground fault trip current Verify the presence of 12 VAC between terminals 5 and 6 of the SAMMS MV unit If control power is not present check the control power fuses or the control power transformer and replace if defective If control power is present push the RESET button to test lights and uni
31. ay becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 o exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F27 Address 1 Press the LIST key to view the active setting Allowable addresses are 1 224 The factory default is 200 2 10 change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 o exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function 39 4 Troubleshooting 4 Troubleshooting the SAMMS MV Device This section discusses how to troubleshoot the SAMMS MV device The troubleshooting guide below lists basic errors that can occur while operating the SAMMS MV device Use the guide as necessary to solve error conditions as they arise Do not attempt to solve any error condition that is not listed in the troubleshooting guide Instead con
32. ce factor of 1 00 or 1 15 with HHC function F6 3 14 Phase Unbalance Unbalanced three phase voltages or loss of one phase can result in unbalanced currents being supplied to the motor Unbalanced currents include negative sequence components that produce heat in the motor winding decreasing the effi ciency of the motor for a given load The SAMMS MV device measures the magnitude of the current unbalance as the maximum deviation from the average of the three phase cur rents divided by the average of the three phase currents In case of loss of a phase the unbalance is 10096 in a three wire ungrounded system With phase unbalance protection enabled current unbalances of between 2096 and 4096 cause the Phase Unbalance LED to flash as a warning If the unbalance increases to above 4096 the Phase Unbalance LED illuminates solidly and overload tripping accelerates The effect of an unbalance of greater than 40 is to shift the motor protection curve in the direction of faster tripping You enable the phase unbalance protection using HHC function F9 e Enabled ON e Disabled OFF With phase unbalance protection enabled HHC function F17 displays the percentage of current unbalance Both functions display OFF if phase unbalance protection is disabled 3 15 Dual Overload Protection SAMMS MVX Only Because the high speed and low speed currents differ in two speed motors different full load current settings are often required
33. contactors are opened to prevent chattering and then reclosed automatically if power returns within one second 3 10 Overload Protection Medium voltage motors are rotor limited under locked rotor conditions and stator limited under running overload condi tions Additionally the type of motor construction affects the thermal behavior of the rotor For example open drip proof motors have significantly shorter cold stall times than totally enclosed fan cooled motors The motor protection algorithm in the SAMMS MV device is designed specifically to provide rotor protection based on the type of motor construction and to differentiate between a stalled rotor and a rotor accelerating to running speed The motor overload protection function is based on calculating the motor s winding housing and rotor temperatures These temperatures are compared to the allowable temperature limits for the motor s winding housing and rotor On the basis of this comparison the SAMMS MV device either stops the motor or allows it to run For example consider the motor winding and rotor temperature rises illustrated in Figure 3 5 The motor starts for 5 seconds and runs for a period of 2200 seconds Then the motor is subjected to arunning overload condition that raises the winding tempera ture to the maximum allowable winding temperature rise result ing in an overload trip At this temperature the motor cannot start until the motor winding temperature co
34. d start the motor The incomplete sequence will remain disabled until the above procedure is repeated External Trip If the external trip LED is solidly 1 Jam conditions such as a blocked conveyor belt or illuminated and the motor is stopped it gear train cause a sudden increase in motor current indicates a jam or loss of load which can damage the motor s insulation in a short condition or a trip caused by an period of time overtemperature indication from an RTD 2 Loss of load conditions such as a broken blade of an impeller or loss of back pressure of a pump result in a sudden decrease in motor current 3 RTD trip indicates that the stator temperature or the temperature of one of the bearings has exceeded its threshold RTD stator trip indicates either that the motor cooling system is blocked or that the fan is broken RTD bearing trip indicates overheating of the motor or load bearings In any case the motor should not be restarted until the cause of the overheating has been corrected 4 F16 on the HHC displays the external trip current at the time of the trip or the RTD number which caused the trip In any case determine the reason for the external trip and correct the problem before restarting the motor If the external trip LED flashes and the motor continues to run it indicates loss of load warning or process current warning 41 4 Troubleshooting Error Condition CPU Fault Ground Fault Re
35. d up For example a typical motor starts within 3 to 4 seconds By selecting an overload class 4 or 5 you can safely start the motor hot or cold and without nuisance tripping This also provides protection against stall time exceeding 4 or 5 seconds assuming the locked rotor current equals 600 of the motor s full load current See Figure 3 1 1 3 20 Rotor Protection oince medium voltage motors are rotor limited under locked rotor conditions and stator limited under running conditions the SAMMS MV device computes an accurate thermal signa 23 3 Operating the SAMMS MV Device ture of the rotor and provides a signal to trip the motor off line when it reaches a trio temperature value The motor model takes into account the change of the rotor resistance during motor startup Rotor resistance is a function of motor slip therefore it is highest at locked rotor and decreases as the motor speeds and the slip decreases You can select motor cold stall time from 5 to 100 seconds in increments of 1 second The selected time will adjust the rotor loop elements so that the maximum temperature limit in the rotor is reached under locked rotor conditions for the time selected If cold stall time is not known the rotor model will assume a cold stall time based on the type of motor used The user is allowed to select an open drip proof ODP motor or a totally enclosed fan cooled motor TEFC motor The default value for the ODP motor is 10 secon
36. ds The default value for the TEFC motor is 20 seconds 3 21 Repetitive Starts The motor model allows repetitive starts without nuisance tripping while protecting the motor against overload and stall conditions Repetitive starts can occur as long as the following conditions are met 1 The energy exerted by the motor during start does not exceed the energy defined by the overload class selected 2 The motor winding temperature does not exceed the maxi mum temperature allowed 3 The rotor temperature does not exceed the maximum temperature allowed 4 The SAMMS MV is not in start inhibit See Section 3 22 For example a motor starting from cold condition could have 4 or more typical starts of 5 seconds without nuisance tripping and without damaging the motor insulation Figure 3 12 shows a multi start scenario for an ODP motor 3 22 Start Inhibit When the motor temperature reaches the maximum values allowed the SAMMS MV device trips If you attempt a restart the overload LED flashes and the motor will not start until the motor winding and rotor temperatures cool down to the full load temperature HHC function F25 displays the motor winding temperature as a percentage of the full load temperature HHC function F10 displays the time to enable restart in seconds 3 23 Cooling Time Constants The motor time constant is a function of the motor type The values listed in Table 3 4 are used in the motor model Motor Delta Motor
37. ec If you have selected protection ON the motor trips and the Ground Fault LED illuminates until reset If you selected warning OFF the Ground Fault LED flashes as long as the fault current exceeds the pickup level Table 3 6 lists the pickup levels for each overload size Ground fault protection is locked out for 1 4 seconds following a start 3 Operating the SAMMS MV Device 400 300 D c 200 D Q 100 Motor first e Figure 3 12 Multi start scenario for an ODP motor Rotor temperature Maximum rotor temperature N4 Maximum winding pret Winding temperature P oth start Motor stopped y Taner 40 Time 25 3 Operating the SAMMS MV Device Size Pickup Current Default Pickup Range Current Table 3 6 Ground fault pickup levels Ground fault detection requires no additional external circuitry or transformers Ground fault detection for the SAMMS MV device is not available for grounded three phase systems or single phase applications Ground fault pickup time is 360 msec A DANGER Automatic Reset Will cause death or serious injury Do not use automatic reset with two wire control or where automatic resetting of the SAMMS MV device restores power to the motor endangering personnel or equipment 3 26 Autoreset After a Trip SAMMS MVX Only To restart the motor after a trip or a fault you must first reset the SAMMS MVX device You can reset the SAMMS MV device in one of two ways
38. econds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F6 Service Factor Press the LIST key to view the active service factor 1 0 or 1 15 The factory default is 1 15 A service factor of 1 15 adjusts the overload trip thresholds up by 1596 over their values for a service factor of 1 0 This results in more margin before tripping 2 To change the setting you must be in program mode 3 o change the setting press the UP or DOWN key to alternate between the two choices until the selected value is displayed 4 Press the ENTER key to change the active setting to the selected value The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting If you make an incorrect selection repeat steps 3 and 4 5 To exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F6A Motor Type 1 Press the LIST key to view the motor type in use The factory default is OdP for open drip proof EFC designates totally enclosed fan cooled 2 10 change the setting you must be in program mode 3 o change the setting press the UP or DOWN key to alternate between the two choices until the selected value is d
39. ected setting appears 4 Press the ENTER key to change the active setting to the selected value The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting If you make an incorrect selection repeat steps 3 and 4 5 To exit the program mode press and hold the Fjunction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F5A 5A CT Primary Current Selection for Overload Relay 2 SAMMS MVX Only SAMMS MV is normally used with SAMMS sensors to provide the current input signals to the device Optionally SAMMS MV may be used with conventional 5A secondary current trans formers 33 3 Operating the SAMMS MV Device 1 Press the LIST key to view the sensor in use for overload relay 2 If standard SAMMS sensors are used the display will read OFF If 54 secondary CT s are in use the CT primary current will be displayed 2 10 change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 To exit the program mode press and hold the Function key for several s
40. en the parties is the sole warranty of Siemens Energy amp Automation Inc Any statements contained herein do not create new warranties or modify the existing warranty Contents 1 Introduction EHH H 2 3 9 Ridethrough Upon Loss of Power 1 1 ABOU this ECH CIE 3 SAMMS MVX On 17 1 2 About the SAMMS MV Dewvice eene 3 3 10 Overload Protection sese 17 1 2 1 The SAMMS MV Device Models 4 3 11 Motor Ambient Temperature 17 1 2 2 Advanced Protection for Medium Voltage 3 12 Protection Curves and Overload MOO conciones d cher efe Pind nt 4 Gic ee 19 1 2 3 Overload Protection s 5 3 13 Ultimate Trip Level and Service Factor 23 1 2 4 Programming Control Circuits 5 SE NEE ue ta ap qddig insanus 23 1 2 5 Using the Standardized Control Panel 5 3 15 Dual Overload Protection 23 3 16 Jam Protection SAMMS MVX Only 23 2 Installing the SAMMS MV Device 7 mes SE SE aaa 23 2 l Receiving and Storing the SAMMS MV Device 7 3 18 Process Current Warning SAMMS MVX Only 23 2 2 Where to Locate the Device 7 319 Stator Protection 23 2 3 Mounting the Device 7 320 BOotorPTO SCHONH o ee ue e 53 2 4 Connecting the Device sss sees 7 321 Repetitive Starts ee 24 GA Wehg Dee soucis 7 322 Statinhibit i 24 24 3 Connecting the Device to aCom oPower 343 Cooling Time Constants eene A E Soure o 3 24 Normal
41. ensor in use for overload relay 1 If standard SAMMS sensors are used the display will read OFF If 5A secondary CT s are in use the CT primary current will be displayed 2 o change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 To exit the program mode press and hold the Fjunction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F5 Full Load Current for Overload Relay 2 SAMMS MVX Only 1 Press the LIST key to view the active full load current setting for overload relay 2 This setting should normally be the full load current for the low speed shown on the motor name plate The range of possible settings and the factory default value depend on the size displayed in F3 The values are similar to those found in the table in the procedure for F4 If the control is not a two speed control OFF appears on the display and UP DOWN and ENTER keys become disabled 2 10 change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the sel
42. er gize a breaker or contactor and remove it from the equip ment before performing any tests maintenance or repair 2 Always perform maintenance on equipment employing springs after the spring charged mechanisims are discharged 3 Always let an interlock device or safety mechanism perform its function without forcing or defeating the device Field Service Operation oiemens can provide compentent well trained Field Service Representatives to provide technical guidance and advisory assistance for the installation overhaul repair and mainte nance of Siemens equipment processes and systems Con tact regional service centers sales offices or the factory for details 1 Introduction 1 1 About this Manual This manual introduces you to the Siemens Advanced Motor Master System SAMMS MV motor protection and control relay which incorporates protection designed for medium voltage machines This manual also contains information for installing and operating the device communicating with other devices over the ACCESS electrical distribution communica tions system and troubleshooting the device This manual also provides a helpful technical reference for you to use Refer to table 1 1 to determine which section of the manual contains the information that you need These instructions prepare you to handle install operate and maintain the SAMMS MV device and the Hand Held Commu nicator HHO The individual starters a
43. er Monitor Power Monitor PC WinPM and SlEServe are trademarks of Siemens Energy amp Automation Inc Microsoft is a registered trademark and Windows is a trademark of Microsoft Corporation IBM is a registered trademark of International Business Machines Inc 1 Introduction 1 Introduction The SAMMS MV electronic motor control and protection de vice is designed and manufactured in accordance with the latest applicable provisions of the National Electric Code Underwriters Laboratories Standards and Procedures NEMA Standards and the National Electric Safety Code You must thoroughly read and understand this user s manual before you begin any work with the SAMMS MV device Successful appli cation and operation of this equipment depends as much upon proper installation and maintenance by the user as it does upon the careful design and fabrication by Siemens The purpose of this instruction manual is to assist the user in developing safe and efficient procedures for the installation maintenance and use of the equipment Contact the nearest Siemens representative if any additional information is desired A DANGER Electrical equipment operates at high voltages When operated improperly this equipment will cause death serious personal injury and property damage To avoid electrical shock burns and entanglement in moving parts this equipment must De installed operated and maintained only by qualified persons thorough
44. ey decreases the function number by one If FO appears on the display pressing the DOWN key rolls the function over to the highest numbered function F27 If the highest numbered function F27 ap pears in the display pressing the UP key rolls the function over to the lowest numbered function FO NO In the display mode use the UP and DOWN keys to step through the range of settings for each set point function You also use the UP and DOWN keys to step through the individual line currents and the average line current of F15 Just as the UP and DOWN keys cause the function numbers to roll over they also cause the range of settings to roll over 3 28 4 Using the ENTER Key Use the ENTER key to change settings on the HHC display The SAMMS MV device disables the ENTER key under the follow ing conditions 1 The ENTER key is disabled while the device is in the function mode 2 he ENTER key is disabled for non setting functions that display a parameter 3 he ENTER key is disabled while the motor is running to prevent settings from being changed while the motor is running Use the following procedure to change a setting This example shows you how to change the full load current setting from 112A to 67A 1 With the HHC in the program mode see section 3 29 1 28 press the Function key The display shows the number of the function most recently selected e g F9 2 Use the UP or DOWN key as described above to ste
45. g The range of possible values is between 2096 and 9596 to the FLC in increments of 596 The factory default is 5096 2 o change the setting you must be in program mode 3 To change the setting press the UP or DOWN key until the desired setting is displayed then press the ENTER key to select the setting The display blanks while the ENTER key Is pressed 4 Return to Step 3 if you select an incorrect setting 5 To exit the program mode press and hold the F unction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to go to other functions F25 Percentage of Motor Winding Temperature 1 Press the LIST key to view the temperature of the motor windings as a percentage of the steady state full load winding temperature The maximum allowable winding tem perature percentage is 17596 3 Operating the SAMMS MV Device 2 The UP DOWN and ENTER keys are disabled for this function 3 Press the F unction key to go to other functions F26 Baud Rate 1 Press the LIST key to view the active setting Allowable settings are 2400 4800 or 9600 baud The factory default is 4800 2 o change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The displ
46. gations Should a conflict arise between the general information contained in this publication and the contents of drawings or supplementary material or both the latter shall take precedence QUALIFIED PERSON For the purpose of this manual a qualified person is one who is familiar with the installation construction oroperation of the equipment and the hazards involved In addition he has the following qualifications is trained and authorized to de energize clear ground and tag circuits and equipment in accordance with established safety practices is trained in the proper care and use of protective equipment such as rubber gloves hard hat safety glasses orface shields flash clothing etc in accordance with established safety practices is trained in rendering first aid SUMMARY These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection with installation operation or maintenance Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser s purposes the matter should be referred to the local sales office The contents of this instruction manual shall not become part of or modify any prior or existing agreement commitment or relationship The sales contract contains the entire obligation of Siemens Energy amp Automation Inc The warranty contained in the contract betwe
47. he SAMMS MV device and ladder diagram code replace the conventional control logic defined by wired interconnection of electromechanical timers control relays pushbuttons selector switches and pilot lights A library of over 40 standard ladder diagrams available for the SAMMS MV device covers most applications In addition to the standard ladders you can construct custom ladder diagrams using optional software to handle special applications Figures 3 2 and 3 3 illustrate the ladder symbols representing input and output devices available for the SAMMS MV device Thecircular symbols represent output devices such as contactor coil drivers pilot LEDs on the front panel of the SAMMS MV device software time delay relays and software control relays All other symbols represent input devices such as software auxiliary contacts remote AC inputs front panel pushbuttons and software timer instantaneous and timed contacts 3 Operating the SAMMS MV Device 3 4 Output Devices You can use the following SAMMS MV output devices AC Outputs The SAMMS MVX device provides up to three AC coil drivers capable of driving contactors up to size H6 while SAMMS MVE orovides one coil driver Control Relays The device provides up to eight software controlled relays These relays are helpful in local two wire and other applications requiring maintained contacts Timing Relays The SAMMS MV device contains four internal software timing relays You can
48. he steady state full load temperature The display is al ways zero if the motor is not in a start inhibit mode If a time to restart displays the motor can only be restarted by an emergency restart see F11 2 The UP DOWN and ENTER keys are disabled 3 Press the Function key to go to other functions F11 Emergency Restarting 1 Press the LIST key to view the emergency restart setting ON or OFF The factory default is OFF With emergency restart enabled ON you can restart the motor after the overload relay is reset manually or automatically even when the time to reset is not zero When you initiate an emergenoy restart the motor conditions are reset to zero to simulate a com pletely cold start The emergency restart function is auto matically disabled after any restart emergency or normal and you must manually re enable the emergency restart function by setting F11 to ON 2 Emergency restart can be enabled in either the program mode or the display mode 3 To change the setting press the UP or DOWN key to display the setting options then press ENTER to select the setting that is shown If the selected setting is ON skip to Step 5 4 f the selected setting is OFF the display blanks while the ENTER key is pressed When the ENTER key is released the setting is changed to OFF Skip to Step 6 5 If the selected setting is ON SUrE is displayed when you release the ENTER key Press ENTER again to make the
49. his function 3 Press the F unction key to go to other functions F18 Display Total Elapsed Run Time of the Motor 1 Press the LIST key to view the total elapsed running time of the motor The run time is displayed in tens of hours as follows Actual Number of Hours Displayed Time The displayed value does not increment until a full hour or for elapsed times greater than 10000 hours a full ten hours have elapsed Internally however the elapsed time is maintained to the nearest O 1 second Note he value can be reset to zero with F21 2 The UP DOWN and ENTER keys are disabled for this function 3 Press the Function key to go to other functions F19 Number of Motor Starts 1 Press the LIST key to view the number of motor starts The number of starts is displayed in tens of starts as follows Actual Number of Starts Displayed Number 65536 O O roll over Note he value can be reset to zero with F21 2 The UP DOWN and ENTER keys are disabled for this function 3 Press the Function key to go to other functions F20 Number of Overload Trips 1 Press the LIST key to view the number of overload trips up to 9999 Note The value can be reset to zero with F21 2 The UP DOWN and ENTER keys are disabled for this function 3 Press the Function key to go to other functions F21 Reset Motor Data 1 To reset to zero the elapsed running time the number of starts and the number of overload
50. ice uses a motor model algorithm that continu ally calculates the stator winding and housing temperature as well as the rotor temperature as a function of the motor rms current The motor model compares the calculated tempera ture to trip temperature values and provides a signal that trips the motor off line when the motor reaches a trip temperature value The model closely emulates the heating and cooling of the motor windings as well as the rotor and provides protection against both transient and steady state overload conditions 1 Introduction Figure 1 2 Hand Held Communicator HHC 1 2 3 Overload Protection The motor model offers the selection of overload classes 2 through 23 The SAMMS MV device offers more accurate motor protection than traditional thermal overload and most electronic motor protection devices This prolongs motor life by eliminating nuisance tripping for multiple restarts and allowing for proper cool down time when the motor winding temperature or rotor temperature reaches a critically high value 1 2 4 Programming Control Circuits The SAMMS MV device allows you to modify its configuration by programming the microprocessor The SAMMS MV device replaces conventional timers overload relays pushbuttons and selector switches SAMMS MVE is preloaded with seven across the line control circuits and the desired control circuit can be selected using the Hand Held Communicator HHC
51. illustrates the control circuit loaded into the SAMMS MV device Figure 2 1 shows a typical connection diagram for the SAMMS MV device If Siemens does not supply the motor controller the retrofitter or original equipment manufacturer should develop an equiva lent electrical scheme 2 4 1 Wiring Guidelines You must observe the following guidelines when installing the SAMMS MV device and connecting it with its peripheral de A DANGER Hazardous Voltages Will result in death serious injury or property damage Turn OFF and lock out all incoming AC power and all foreign power sources before attempting to work on the SAMMS MV device Note Failure to follow these guidelines can cause pickup of unwanted signals resulting in erratic operation and damage to the SAMMS MV device Guideline 1 Separate the low voltage 115 VAC or less from the higher voltage conductors 460 VAC or higher as much as possible If low voltage and medium voltage wires must cross paths make sure that they intersect at a right angle Guideline 2 To eliminate noise coupling install all twisted pairs or wrap wires in such a waythata complete twistor wrap occurs at least every two inches Guideline 3 Place the low voltage leads near the controller chassis Guideline 4 Use atleast AWG 14 stranded copper wire for any low voltage control wiring that you route outside the motor controller enclosure Connections to the SAMMS MV unit must be made with w
52. ire no larger than AWG 14 Guideline 5 To avoid ground loops ground each motor controller at a single ground point The top portion of the device contains 16 terminal locations for connecting control power leads power supply ground inputs and outputs Refer to Figure 2 2 for a description of each terminal block assignment 2 Installing the SAMMS MV Device L1 INCOMING L2 LINE L3 NY W NA Y Y Es GROUND BAR zb LFU LFU M n M _ ZN AIN ZN L LB LL ACT Gio ere x ACT ex Hi x ACT Hi H1 H1 Hi x1 x1 x1 rs or fh or CT x CO 3 CT1 2 CT2 SAMMS CHFU T1 QT Q T3 H1 H2 VSTO CTS KVA Fi ie LS ae CPT GE RETURN DEJE 52 x x o MOTOR RETURN A C OUTPUT 1 AC AC 115V h a 2 E CXFU O16 6 5 Q7 1 2 oi o0 o PUSH TO TEST RUN TEST 3 P ES oo d L c dB 54 M UE 8 Y us Ao e o Fd ZS L 115V TEST SE D POWER 24 7 SE D H29 eee CPT1 115V 12V CXFU m WB W2 11 3 1 2 M y S 10 Wi DRIVE UNIT 6 M N67 pu ceni AN Soy Figure 2 1 Full voltage non reversing connection diagram 2 Installing the SAMMS MV Device
53. irements you should install the SAMMS MV device and its controller in an area where the following conditions exist s Ambient air must be free of dirt combustible vapor steam electrically conductive or corrosive material Area around the controller must provide access to the equipment for inspection maintenance and operation 2 3 Mounting the Device The SAMMS MV device mounts in a front door panel ofthe low voltage compartment of Siemens Series 81000 medium voltage control MVC equipment Mount the device in the normal low voltage compartment associated with each me dium voltage controller 2 4 Connecting the Device This section contains general guidelines that you should follow to connect the SAMMS MV device These guidelines include instructions for routing the wire connecting the wire and grounding the device Use these guidelines to install the SAMMS MV device and its peripheral devices in a motor controller Also use these guidelines to connect the motor controller to the motor When Siemens supplies a SAMMS MV device as part of a motor controller Siemens personnel install the wiring between the SAMMS MV device and its peripheral devices in the motor controller at the factory The schematic diagram used contains three components a connection diagram a ladder diagram and a wiring diagram The connection diagram illustrates the connections between the SAMMS MV device and its periph eral devices The ladder diagram
54. isplayed 4 Press the ENTER key to change the active setting to the selected value The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting If you make an incorrect selection repeat steps 3 and 4 34 5 o exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F7 Overload Trip Class The trip class is the time in seconds that it takes the overload relay to trip for a starting current of 60096 of the full load current setting The range of possible values is 2 23 1 Press the LIST key to view the active trip class 2 o change the setting you must be in program mode 3 To change the setting press the UP or DOWN key to scroll through the range of settings until the selected setting appears 4 Press the ENTER key to change the active setting to the selected value The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting If you make an incorrect selection repeat steps 3 and 4 5 o exit the program mode press and hold the Function key for several seconds The display will show bro reese the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F7A Cold Stall Time 1 Press the LI
55. ized Temperature Rise for Class B and SURE NINE M OLOR TER FM UN Veins Class F INSUAUON EE 24 2 4 4 Connecting Input and Output Devices to 335 Ground Fault Detection 5n 24 M abd rae 3 26 Autoreset After a Trip SAMMS MVX Only 26 DN EE E M MEM ae ee INE 3 27 Emergency Restarting esse eee eee ee ee 26 3 Operating the SAMMS MV Device 11 3 28 Using the Hand Held Communicator HHC 26 3 1 Password S vs s lt ese uice xvi Reo 11 3 28 1The F unction Key sese 26 3 2 Using the Reset Test Push Button 11 3 20 2 The LIST Key csi ER ERE tes 26 3 2 1 Performing a Lamp Test 11 3 28 3UP and DOWN Keys eee 28 3 2 2 Performing an Overload Relay Test 11 3 28 4Using the ENTER Key 28 SE Kee Ee de usen bon Urt Een inne 11 3 29 Using the SAMMS MV Device 34 Output DEVICES unien ui N 12 Sieten c s 28 3 5 EE DEVICES s adu e 12 3 29 1 Program Mode Passwords 32 3 60 Ladder Diagram iussit recuset seb stets es 13 3 29 2 SAMMS MV Functions 32 3 6 1 Library of Standard Ladder Diagrams 13 3 6 2 Custom Ladder Diagrams 13 x Ua Meat 40 37 Incomplete Gemeng ees EE 3 8 Intelligent Reduced Voltage Appendix A Technical Specifications of the Starting SAMMS MVX Only 17 SAMMS MV Device nmn 43 OCopyright 1994 Siemens Energy amp Automation Inc ACCESS SAMMS SAMMS MV Series 81000 SEAbus Pow
56. layed then press the ENTER key to select the setting The display blanks while the ENTER key Is pressed 4 Repeat Step 3 if you select an incorrect setting 5 o exit the program mode press and hold the F unction key for several seconds The display will show ProY Press the UP or DOWN key to change to the display mode 6 Press the Function key to go to other functions F14 Set Programmable Timer 2 1 Press the LIST key to view the active setting for timer 2 The default setting is OFF If the timer is not used in the control circuit OFF is displayed and the UP DOWN and ENTER keys are disabled OFF is also displayed for a setting of O seconds The timer may be adjusted from O 200 seconds in one second increments 2 o change the setting you must be in program mode 3 To change the setting press the UP or DOWN key until the desired value is displayed then press the ENTER key to select the setting The display blanks while the ENTER key Is pressed 4 Repeat Step 3 if you select an incorrect setting 5 o exit the program mode press and hold the F unction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the Function key to go to other functions F15 Display Current 1 Press the LIST key to view the instantaneous line currents or the average instantaneous line current The LIST key is disabled for full voltage part winding starte
57. ly familiar with the equipment instruction manuals and drawings Qualified Person For the purpose of this manual and product labels a Qualified Person is one who is familiar with the installation construction and operation of this equipment and the hazards involved In addition this person has the following qualifications e raining and authorization to energize de energize clear ground and tag circuits and equipment in accordance with established safety practices e raining in the proper care and use of protective equipment such as rubber gloves hard hat safety glasses face shields flash clothing etc in accordance with established safety procedures e raining in rendering first aid Signal Words The signal words Danger Warning and Caution used in this manual indicate the degree of hazard that may be encountered by the user These words are defined as Danger Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Warning Indicates an potentially hazardous situation which if not avoided could result in death or serious injury Caution Indicates an potentially hazardous situation which if not avoided may result in minor or moderate injury Dangerous Procedures In addition to other procedures described in this manual as dangerous user personnel must adhere to the following 1 Always work on de energized equipment Always de en
58. matic reset with two wire control or where automatic resetting of the SAMMS MV device restores power to the motor endangering personnel or equipment Press the LIST key to view the active autoreset setting either ON or OFF If autoreset is ON the SAMMS MV device automatically resets 30 seconds after an overload or exter nal trip At this time the motor can start If autoreset is OFF you must manually reset the overload relay with the Reset Test button before restarting the motor The factory default is OFF 2 o change the setting you must be in program mode 3 o change the setting press the UP or DOWN key to select the new setting 4 Press and hold the ENTER key If the displayed setting is ON go to step 6 If the displayed setting is OFF go to step 5 O1 Release the ENTER key while the display appears blank When you release the key the setting changes to OFF Go to step 6 6 Release the ENTER key SUrE appears on the display 7 Press the ENTER key to make the change to ON Note he reason for displaying SUrE and requiring you to press the ENTER key a second time is because the motor can restart immediately after an overload trip if autoreset is ON 8 lf you made an incorrect selection repeat steps 3 through f 9 To exit the program mode press and hold the F unction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 10 Pre
59. n incorrect setting 5 To exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to go to other functions F12A Ground Fault Pickup Current 1 Press the LIST key to view the active ground fault pickup current in use The range of values and default values are shown in the table below 2 To change the setting you must be in program mode 3 o change the setting press the UP or DOWN key to display the setting options then press ENTER to select the setting that is shown The display blanks while the ENTER key is pressed 4 Repeat Step 3 if you select an incorrect setting 5 To exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the 36 UP or DOWN key to change to the display mode 6 Press the Function key to go to other functions F13 Set Programmable Timer 1 1 Press the LIST key to view the active setting for timer 1 The default setting is OFF If the timer is not used in the control circuit OFF is displayed and the UP DOWN and ENTER keys are disabled OFF is also displayed for a setting of O seconds The timer may be adjusted from O 200 seconds in one second increments 2 o change the setting you must be in program mode 3 To change the setting press the UP or DOWN key until the desired value is disp
60. nd controllers used are designed for specific applications based upon your equipment and needs Instructions covering these starters and compo nents are not included in this manual For this information refer to instructions and drawings furnished with your equipment or contact your Siemens representative You must read these instructions and determine applicability of your equipment Hefer to the nameplate data on your controller and to the electrical diagrams supplied with your controller to determine applicability of your equipment If you need to learn about the SAMMS MV device install the SAMMS MV device operate the SAMMS MV device operate the Hand Held Communicator connect the SAMMS MV device to the ACCESS system troubleshoot the SAMMS MV device leam about the technical specifications of the SAMMS MV device Table 1 1 Where to find information 1 2 About the SAMMS MV Device The SAMMS MV device shown in Figure 1 1 is a software configured electronic motor control and overload protection device that incorporates protection tailored to the special characteristics of medium voltage motors The SAMMS MV system includes a microprocessor based SAMMS MV device which receives signal inputs from a set of current transformers either 3 162 or 1 3 and power input from a 12 volt tap on the controller s control power transformer To perform certain monitoring and setup activities a Hand Held Communicator HHC shown in Figure 1
61. nt if 5A secondary CT s are used OFF denotes SAMMS sensors HSA 18 72A HSB 60 240A H3C 192 400A H6 320 20A Function of size in F3 Function of size in F3 OFF denotes SAMMS sensors in use m Select the overload trip class 2 2 233 00 T IHO Select cold stall time 5 10 ODP 7 20 EFC Enable disable autoreset of overload ON OFF and external trips Enable disable phase unbalance ON OFF protection Display the time to wait until the motor Real Time Value E can be restarted Applies after an overload trip with the winding housing or rotor temperature above the maximum allowed for restarting Enable disable the emergency restart ON OFF capability Table 3 8 Motor control and protection functions page 1 of 2 29 3 Operating the SAMMS MV Device Function Function Description Range Step Size Default Value Number F12 oelect ground fault protection or ON OFF N A OFF warning ON means protection OFF means warming F12A oelect ground fault pick up current IER 1A 10A H3A H8C value 20A H6 Se programmate imer Fi OFF 200 second Sot programmabie mer 2 OFF 200 second 1A N A F15 Display the average line current and the H3A O 720A individual line currents H3B O 2400A 1A N A H3C O 4000A 1A N A H6 O 7200A 2A N A F16 Display the most recent trip current HBA O 720A 1A N A H3B O 2400A 1A N A H3C O 4000A 1A N A H6 O 7200A 2A N A F17 Di
62. o display the size for overload relay 1 1 Press the LIST key to view the size selected for overload relay 1 2 10 change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 3 Operating the SAMMS MV Device 5 o exit the program mode press and hold the F unction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode F3 Size for Overload Relay 2 SAMMS MVX Only Overload relay 2 protects two speed motors running on low speed The possible values are H3A H3B H3C H6 and OFF OFF appears for single speed motors Use the following proce dure to display the size for overload relay 2 k Press the LIST key to view the size selected for overload relay 2 2 10 change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears on the display 4 Press the ENTER key to change the active setting to the selected setting The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 5 To exit the program mode press and hold the F unction key fo
63. ols down to the full load temperature The motor can then start and run at full load current Figure 3 6 depicts the temperature rise in the rotor and stator winding during a 10 second stall for an ODP motor In this case the rotor temperature rises at a rate faster than the winding temperature and reaches the maximum allowable value resulting in a trip In order to prevent damage to the motor SAMMS MV will not allow the motor to start until the winding and the rotor temperatures cool down to the full load tempera ture or less In the motor model the greatest of the root mean square RMS current values for the motor phases is converted into a heat like quantity This is done by a mathematical function that depends on the ratio of the RMS current to the full load current set for the motor The function is based not only on ideal overload characteristics but also on empirical motor data The heat like quantity is analogous to an input source of current to the electric circuit analog The exact values of the various elements in the circuit depend in some cases on nameplate data entered for the particular motor being protected Unlike the method of protection in conventional overload relays the motor model is general enough to protect many classes of motors yet sophisticated enough to offer customized protection to particu lar motors To customize protection to the motor enter the following nameplate data full load current setting F4
64. on of the SAMMS MV device are shown in table 3 7 Table 3 8 provides a description of each function and its associated range step size and default value To access a function perform the following steps 1 Connect the HHC s cable to the communications port on the front of the SAMMS MV device 2 Locate the desired function using the F unction and UP and DOWN keys 3 hen locate and follow the steps provided with the function you wish to perform 3 Operating the SAMMS MV Device Function Function Description Range Step Size Default Value Number u L L Display or change for SAMMS MVE the control circuit number Enable disable incomplete sequence status F2 Display the size for single speed H3A H3B H3C H6 As shown controller or the high speed size for two speed motor controllers F3 Display the low speed size for H3A H3B H3C H6 As shown two speed controller F3 is OFF for single speed motor controllers F4 HAA 18 72A 60 240A 192 400A 320 720A Function of size in F2 Select the full load current setting l for the size for single speed motor H3B controller or the high speed size for H3C two speed motor controllers H6 nol FAA Display the primary current if 5A secondary CT s are used F5 Select the full load current setting l4 for the low speed size for two speed motor controllers F5 is OFF for single speed motor controllers F5A Display the primary curre
65. onitor PC communications and supervisory software or Siemens Microsoft Windows based SlEServe or WinPM soft ware These supervisory devices and programs can communi cate with the SAMMS MV device and allow it to operate in the Top View Side View SAMMS 5 pin plug Module 12345 CM 1 OQ 112 121 4 Communications ACCESS electrical distribution communications system The SAMMS MV device connects to the SEAbus RS 485 via the 5 pin plug on the Communications Module CM 1 The communications connections are illustrated in Figure 2 3 Refer to Installing the ACCESS System manual no SG 6028 for detailed information on connecting the SAMMS MV device to the ACCESS network Proper make up of 5 pin plug Rear View 9432 1 Shield Ru aps E f Ribbon cable assembly Figure 2 3 SAMMS MV device communications connections 10 Rear view of the SAMMS MV device 3 Operating the SAMMS MV Device 3 Operating the SAMMS MV Device This section explains how to operate the SAMMS MV device 3 1 Password Protection Changing the settings of the SAMMS MV device requires the use of the Hand Held Communicator HHC in the program mode To access the program mode the user needs a password The SAMMS MV device is shipped from the factory with the pas
66. p or scroll to the desired function The display shows the desired function e g F4 3 Press the LIST key The display shows the active setting for the selected function e g 112 representing a full load current setting of 112A for a motor controlled by a size H3B contactor 4 Use the UP or DOWN key as described above to step or scroll to the desired setting The display shows the desired setting e g 67 for 674 5 To view the active setting press the LIST key The number 112 appears on the display 6 Repeat step 4 to return to the desired setting 7 To enter the desired setting 67 which is displayed press the ENTER key The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting 8 Press the LIST key to show the new setting 67 on the display 9 To move to the other functions press the Function key The display shows in the example F4 10 Press the UP and DOWN keys to step through the function numbers The SAMMS MV device is in the function mode 11 To exit the program mode press and hold the F unction key for several seconds The display will show Pro9 Press the UP or DOWN key to change to display mode 3 29 Using the SAMMS MV Device Func tions This section lists the 28 major motor control and protection functions and several related functions FO F27 F6A F9A F12A F23A and F24A and how to use them The functions available for each versi
67. r several seconds The display will show ProY Press the UP or DOWN key to change to the display mode F4 Full Load Current for Overload Relay 1 Press the LIST key to view the active full load current setting for overload relay 1 The setting should normally be the full load current as shown on the motor nameplate high speed for two speed machine The range of possible settings and the factory default value depend on the size displayed in F2 as follows Overload Setting step Default Relay Size Range 2 o change the setting you must be in program mode 3 Press the UP or DOWN key to scroll through the range of settings until the selected setting appears 4 Press the ENTER key to change the active setting to the selected value The display becomes blank while you hold down the ENTER key and the SAMMS MV device stores the new setting If you make an incorrect selection repeat steps 3 and 4 5 o exit the program mode press and hold the Function key for several seconds The display will show Pro9 Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F4A 5A CT Primary Current Selection for Overload Relay 1 SAMMS MV is normally used with SAMMS sensors to provide the current input signals to the device Optionally SAMMS MV may be used with conventional 5A secondary current trans formers Press the LIST key to view the s
68. re on constantly Refer to Figure 3 4 for an illustration of pilot LEDs 3 5 Input Devices You can use the following input devices with the SAMMS MV device Remote AC Inputs For SAMMS MVX you can use four 120 VAC or VDC inputs for remote control or you can use one input for SAMMS MVE 12 Front Panel Pushbuttons he SAMMS MV device has six front panel pushbuttons for local control of the device You must use pushbutton 1 PB1 for stopping the motor You must use three of the pushbuttons PB4 PB6 for the Hand Off and Auto functions if these functions are used in your configuration If these functions are not used you may use PB4 PB6 for other functions You can configure the other two pushbuttons PB2 and PB3 at your discretion Refer to Figure 3 4 for assignment of pushbuttons Insert labels are used to identify the function associated with each pushbutton or light bar Software Auxiliary Contacts Any number of internal software auxiliary contacts can be configured These contacts show either a normally open NO or normally closed NC status You can set up these auxiliary contacts using the SAMMS MV software Through the SAMMS MV software the pilot LEDs also have auxiliary con tacts SIATE Current 4096 20 4096 Unbalance Impending Trip 11096 gt 100 11096 Overload Ttip Start Inhibit Incomplete Trip Sequence Trio Loss of Load Alarm Loss of or Jam or RTD Load or Process Current CPU Fault T
69. re with motors rated for ambient temperature other than the standard 40 C 3 12 Protection Curves and Overload Classes The specific motor protection curve selected depends upon the overload class setting The overload class is defined as the maximum tripping time in seconds for a current level of 60096 of the full load current or lae The typical starting current of motors is 600 of l For example an overload class setting of 10 guarantees that a current of 600 of l o will cause a trip in 10 seconds or less In the SAMMS MV the protection curves are designed to cause a trip in 9096 to 10096 of the class time for a current of 600 of lyc The lowest overload class greater than or equal to the motor s starting time gives the best protection Overload classes 2 through 23 are available in SAMMS MV The range of protec tion curves are shown in Figures 3 7 through 3 10 Important In the unlikely event that the motor acceleration time overload class exceeds the motor s stall time use a speed switch as an input source to open the contactor if the switch senses a locked rotor or stall condition Note For clarity the time current characteristic curves in this manual are shown with overload classes 2 5 10 15 and 23 only Use interpolation to derive values of other overload classes not shown 19 3 Operating the SAMMS MV Device UU L 4S UUM SJOJOW WIEM JO MNO OlSUSJOCJEYO jueJno euul Q E aunbi4 C ssel G sept 8
70. rio CPU Failure or Low Voltage Light bar L1 Stop or Off Off Delay Timer Timing Start On Forward On Delay Timer Low Speed Right Timing Light bar L3 Reverse High On Delay Timer Speed Left Timing Table 3 2 Description of pilot LEDs Light bar L2 Software Timer Inputs Each timer has an unlimited number of normally open NO and normally closed NC contacts Timers configured as on delay timers have an unlimited supply of normally open timed closed NOTC and normally closed timed open NCTO contacts Timers configured as off delay timers have an unlimited supply of normally open timed open NOTO and normally closed timed closed NCTC contacts Communications Inputs A serial RS 485 communications port is located on the back of the device for external communications 3 Operating the SAMMS MV Device The communications inputs must be included in the ladder logic control circuit 3 6 Ladder Diagrams 3 6 1 Library of Standard Ladder Diagrams The SAMMS MV library of more than 40 ladder diagrams covers most standard motor control applications Table 3 3 lists the standard control circuits and the input and output assign ments for the library You can use the library with the following starter types across the line non reversing across the line reversing two speed two winding two speed one winding constant or variable torque two speed one winding constant horsepower reduced voltage a
71. rs For instanta neous line currents the display shows the phase designator A b or C in the left most character followed by three significant digits of the value of the current For the average instantaneous line current four digits are displayed without a phase designator 3 Operating the SAMMS MV Device a Because only four characters can display at a time individual line currents of 1000 amps and above are displayed as three dashes following the phase designa tor e g A b For sizes H3A H3B and H3C the current is displayed to the nearest 1 amp For size H6 currents are displayed to the nearest 2 amps 2 To view another line current press the UP or DOWN key to scroll through the four selections 3 The ENTER key is disabled for this function 4 Press the F unction key to go to other functions F16 Trip Current 1 Press the LIST key to view the value of the current that caused the most recent trip 2 he UP DOWN and ENTER keys are disabled for this function 3 Press the F unction key to go to other functions F17 Current Unbalance 1 Press the LIST key to view the percentage current unbal ance When unbalance protection is disabled F9 OFF OFF is displayed The percentage unbalance is the ratio of the greatest deviation of the three phase currents from their average to the average of the three phase currents ex pressed as a percentage 2 he UP DOWN and ENTER keys are disabled for t
72. s Refer to the Custom Software Manual for the SAMMS device Bulletin CP 3291 HANDSW_N HANDS W_NC Figure 3 2 Ladder symbols used with the SAMMS MV device sheet 1 13 3 Operating the SAMMS MV Device AC OUTPUTS UTPUTI_N UTPUTI_NC 1 T ER UTPUT2_N UTPUT2_NC UTPUTS3 UTPDUTS N WTP LTS NC CONTROL RELAYS PRe_NCT DELAY RI NCIC Re NCTC ELAY ELAY MMUNICATIONS INPUTS 5 C_PBe_N olo IN1 PB NC Figure 3
73. second fixed value Timer 4 30 seconds fixed value Timer auxiliary contacts Software instantaneous and timed contacts Control relays 8 Auxiliary contacts Software instantaneous contacts 45 Appendix A Technical Specifications Dimensions SAMMS MV 6 25 inches W 6 00 inches H 2 125 inches D Handheld Communicator 3 15 inches W 5 7 inches H 1 37 inches D Environments Operating temperature range 259 C to 4 709 C Storage temperature 402 C to 4 859 C Relative humidity 5 to 9596 non condensing Altitude 6600 ft Vibration 5 g s at a frequency range of 10 to 60 Hz Electrostatic discharge No hardware failures at 15 kV at any point in the front of the unit Electromagnetic interference 5 kV repeated pulses per UL 991 and ANSI C37 90A Radio frequency interference Up to 95 MHz and 61 3 V M field strength Control Power Specifications Unit powered by 12 00 VAC 10 15 supply Power requirements AVA Control circuit inputs 120 VAC or 125 VDC 10 15 Control circuit outputs 120 VAC 10 15 Maximum output loading allowed 1 0A for each output energized for continuous operation Maximum leakage current allowed 5mA Frequency 50 Hz 4496 5 60 Hz 5 46 Appendix A Technical Specifications Catalog Number SAM6 SAMMS MV Model Number SAM6 SAMMS MVE SAM7 SAMMS MVX Configuration L1 ALGO
74. selected detection of a loss of load trips the motor off line and illuminates the External Trip LED With warning selected the motor does not trip off line and the External Trip LED flashes until the current returns to its former steady state level or higher SAMMS MVX is normally shipped with loss of load protection OFF WARNING and with default setting of 50 lac 3 18 Process Current Warning SAMMS MVX Only It is often convenient to have an indication that the load current is above its normal operating level so that the process can be checked and if necessary adjusted You can set the process current warning from O96 displayed as OFF to 100 of the full load current with HHC function F22 As long as the motor running current exceeds the process current warning level the External Trip LED flashes Process current warning is locked out for five times the class time after a start or a direction or speed change 3 19 Stator Protection By selecting the overload class slightly greater than or equal to the motor s starting time the motor model defines an energy Pt value In this value equals 60096 of the motor s full load current and t equals the overload class selected If the amount of energy exerted by the motor during start stall or under locked rotor condition exceeds the amount of energy defined by the overload class selected the SAMMS MV device will trip This protects the motor s winding against excessive heat buil
75. splay the percentage current O 100 1 N A unbalance OFF is displayed if unbalanced protection is off F18 Display the elaosed motor running time 0 0 6553 x 10 hr O 1x10hr N A in tens of hours up to 999 9 1x1Ohr up to 6553 F19 Display the number of motor starts in 0 0 6553 x 10 0 1x10 N A tens of hours up to 999 9 1x10 up to 6553 FX Dspeythenumberofovelostips 0 9099 F21 Reset motor data Zeroes the elapsed N A N A N A running time the number of starts and the number of overload trips FX Setprocess curent warrin CO E Jamprotecton ONOFF NAC F23A Select jam pickup current 120 400 lrc 200 FM Loss of Load ONOFF NATO F24A Select loss of load pickup current 20 95 of running 5 50 current F25 Display percentage of motor winding O to 250 1 N A temperature ES Select baud rate 2400746009600 Far __ Select adress 1224 Table 3 8 Motor control and protection functions page 2 of 2 CO O 3 Operating the SAMMS MV Device Display mode ENTER n Press and hold F key LT UP DOWN To select function for viewing To change password ENTER Prompt for new password UP DOWN To select digit ENTER RE digit First digit Enter new SSES password twice E i Enter following No Password entered twice digits in the same manner 0000 9999 Yes Y dant H Password Correct
76. ss the Function key to step through other functions F9 Phase Unbalance Protection 1 Press the LIST key to view the active phase unbalance protection setting ON or OFF The factory default setting is ON a When phase unbalance protection is enabled ON cur rent unbalances of greater than 4096 accelerate overload tripping The Phase Unbalance LED flashes for unbal ances between 2096 and 4096 It remains steadily illumi nated for unbalances greater than 40 b When phase unbalance protection is disabled OFF the Phase Unbalance LED remains off unbalanced condi tions have no effect on protection and F17 Display Unbalanced Current displays OFF 2 o change the setting you must be in program mode 3 To change the setting press the UP or DOWN key to display the setting options then press ENTER to select the setting that is shown The display blanks while the ENTER key is pressed 4 Repeat Step 3 if you select an incorrect setting 5 o exit the program mode press and hold the F unction key for several seconds The display will show bro Press the UP or DOWN key to change to the display mode 6 Press the Function key to go to other functions F10 Display Time to Restart 1 Press the LIST key to view the time remaining before the motor can be restarted The time is displayed in seconds While the motor is cooling the time to restart counts down from the maximum winding or rotor temperature allowed to t
77. st and reset the overload function and to test the front panel lights Diagnostics Eight diagnostic LEDs located on the front panel provide information about conditions affecting the motor Statistical Data about the Motor The microprocessor s memory stores statistical data about the motor and displays this data on the Hand Held Communicator HHC Real Time Metering Data he Hand Held Communicator displays real time metering data Local Displaying of Motor and Circuit Data The HHC and the eight 8 diagnostic LEDs display motor and control circuit data The eight 8 diagnostic LEDs are located on the front panel of the device Communicating with Other Devices The SAMMS MV device communicates with other devices via the ACCESS system When connected to the ACCESS system the SAMMS MV device provides two way communication with the Power Monitor display and monitoring unit an IBM PC compatible computer running the Power Monitor PC com munications and supervisory software or another supervisory device This ability allows you to control and monitor motors from a centralized location You can have remote access to all SAMMS MV data such as diagnostics statistical data real time metering and controller status If you would like to learn more about the ACCESS system refer to nstalling the AC CESS System manual no SG6028 1 Introduction SAMMS MV Model Application Across the line FVNR Reversing Two speed
78. sword 0000 This password can be changed by the user as described in section 3 29 1 Display of data using the HHC does not require use of a password 3 2 Using the Reset Test Push Button The Reset Test pushbutton is located at the bottom center of the front panel of the SAMMS MV device as illustrated in Figure 3 1 You press this pushbutton to manually reset the SAMMS MV device after a fault or a trip condition occurs so that the motor can be restarted You can also use the Reset Test pushbutton to perform a lamp test or an overload relay test 3 2 1 Performing a Lamp Test Totest the diagnostic LEDs the control LEDs and the light bars on the front panel use the following procedure 1 Press and hold the Reset Test pushbutton for one to two seconds 2 Release the Reset Test pushbutton All LEDs and light bars on the front panel illuminate for two seconds If a fault or trip condition exists when you press the Reset Test pushbutton the device performs a reset instead of a lamp test SS MN ERE N SIEMENS SAMMS MVE aR 2 Da EY bi E 3 D Curren Unb LED Flashing 0 40 mp gt 100 Trip lt 110 Alarm Loss f Load or Pres Current CPU pe E bi Kaz n bi FE s8 3 D ES c 2 Figure 3 1 Front view of SAMMS MV 3 2 2 Performing an Overload Relay Test You may perform an overload relay test whenever the motor is stopped Use the following procedure to perform an overload relay
79. t If the Ready light does not illuminate call Siemens Verify the SAMMS MV unit is in the Auto mode Verify 115 VAC input at SAMMS MV terminals 9 10 11 and 12 with reference to 13 and at terminal 7 with reference to 13 If remote operation is intermittent verify connections are made in a manner to avoid noise interference Refer to Section 2 of this manual for instructions Verify 115 VAC at terminals 7 and 8 with reference to 13 Perform lamp test by pressing RESET button Verify ladder diagram Verify SAMMS MV is in Local mode Verify 115 VAC at terminal 7 with reference to 13 and at output terminals 14 15 or 16 with reference to 13 when the motor is started Change parameters after motor is stopped Refer to Section 2 of this manual for instructions Appendix A Technical Specifications Appendix A Technical Specifications of the SAMMS MV Device Motor Control Specifications Inputs Six pushbuttons Four remote inputs Outputs SAMMS MVX Three coil drivers Three light bars One programmable alarm contact SAMM S MVE One coil driver Two light bars Current unbalance Impending trip Overload trip External trip Incomplete sequence Ground fault CPU fault Ready Light bar flashes timer timing Impending trip LED flashes motor temperature warning Overload trip LED flashes start inhibit CPU LED ON momentary loss of voltage Diagnostic LEDs
80. tact your Siemens repre sentative Note When contacting your Siemens representative refer to the SAMMS MV production control label to identify production date hardware version and software version This label is mounted on the right side ofthe unit when viewed from the front For example 93 250 456 01 03 represents a device that was produced in 93 the 250th day of the year unit number 456 hardware version 01 and software version 03 Error Condition Main Cause current unbalance exceeds 4096 or it 20 and 4096 Current unbalance may be due to voltage or load unbalance Indicates motor exceeded winding housing or rotor temperature threshold Overload Trip 40 Current Unbalance Current unbalance LED is illuminated if flashes if current unbalance is between Troubleshooting Guide Remedy Correct the cause of voltage or load unbalance Verify current transformer secondary voltage is unbalanced at SAMMS MV terminals 1 2 and 3 with reference to 4 Verify that the full load current F4 and service factor F6 on the HHC matches the full load current and the service factor on the motor nameplate If the motor tripped during start increment the overload class one step and start again If still unsuccessful the motor s rotor may be locked or stalled Correct motor malfunction before restarting If the motor tripped after running for a period more than the overload class selected the trip may be d
81. test 1 Press and hold the Reset Test pushbutton for at least the duration of the class time The class time is set by accessing function F7 If you need to know how to access function F7 see Section 3 29 If you release the Reset Test pushbutton before the duration of the class time the device performs a lamp test If a fault or trip condition exists when you press the Reset Test pushbutton the device performs a reset instead of a lamp test 2 Continue to hold down the Reset Test pushbutton After reaching the class time duration the Impending Trip and the Phase Unbalance LEDs illuminate 3 Release the Reset Test pushbutton The Impending Trip and Phase Unbalance LEDs go off and the Overload Trip LED illuminates for two seconds If the SAMMS MV device is tripped it is automatically reset at the end of the overload relay test Use the following procedure to reset the SAMMS MV device after a trip event 1 Press the Reset Test pushbutton 2 Release the Reset Test pushbutton The device resets the alarm LEDs If the motor has cooled sufficiently you can restart the motor 3 3 Motor Control You can configure the SAMMS MV device to perform many motor starting and control functions These functions include basic across the line to more complicated reversing two speed and reduced voltage starting The SAMMS MV device stores in its memory the executable code representing the ladder diagram for the user s control application T
82. to optimize motor driven equipment capabilities maximize the process system output and facilitate maintenance SAMMS MVX is a full function model applicable to all control needs from a simple across the line unit to a more compli cated reduced voltage scheme It includes all of the functions listed in table 3 7 Any of the standard control circuits listed in table 3 3 or a custom circuit may be downloaded The SAMMS MVX device accepts up to four remote inputs while SAMMS MVE accepts two remote inputs SAMMS MVE is a model of SAMMS MV tailored to across the line FVNR applications It provides all of the protective func tions of the SAMMS MVX device except that it has no jam CCCo Current Unbalance Impending Trip Overload Trip Incomplete Sequence External Trip Alarm Reset Test protection F23 loss of load protection alarm F24 or process current warning F22 functions Functions F3 and F5 associ ated with two speed applications are not available No provi sion for automatic reset F8 is provided SAMMS MVE accepts one remote input and provides one output to actuate a single contactor An alarm contact is not available with SAMMS MVE These remote inputs are compatible with all PLCs and electro mechanical remote control devices that have a 120VAC or 125VDC input signal 1 2 2 Advanced Protection for Medium Voltage Motors For advanced protection of medium voltage motors the SAMMS MV dev
83. ue to a running overload such as excessive loading on a conveyor belt or bad bearings Remove the cause of the overload before restarting the motor F16 on HHC displays the most recent overload trip current value 4 Troubleshooting Troubleshooting Guide Error Condition Main Cause Remedy Incomplete Indicates the SAMMS MV unit does not 1 If the unit trips one second after start verify that Sequence detect current one second after a start Current transformer secondary input is present in the command or it detects current one range of 100 mVAC to 3 54 VAC at terminals 1 2 second after a stop command and 3 with reference to 4 Verify that the coil voltage is 115 VAC at terminals 14 15 or 16 with reference to 13 when the motor is started Verify 115 VAC at terminal 7 with reference to 13 Correct conditions if necessary Call Siemens if unit continues to trip 2 If the unit trips one second after a stop command verify the contactor is open Repair or replace the contactor if it is not functioning properly 3 Verify operation of mechanical interlock and replace or adjust 4 Verify absence of voltage at terminals 1 2 and 3 with reference to 4 and at terminals 14 15 or 16 with reference to 13 If voltage is present define the Source and reconnect so that the motor current only passes through the current transformer 5 To disable incomplete sequence select Fl on the HHC press the ENTER key for one or more seconds an
84. utotransformer reduced voltage reactor For each starter type the library includes seven control types e local two wire e local three wire DICAT P HANDL_NC FLASHING LIGHTS HOD FL3 ERMINALS local three wire remote two wire local two wire remote two wire local three wire remote three wire remote two wire remote three wire SAMMS MVE has seven preloaded circuits ladder diagrams for use with across the line FVNR applications SAMMS MVX may be used with any of the circuits For details on the library of standard ladder diagrams refer to the SAMMS Standard Circuit Manual 3 6 2 Custom Ladder Diagrams For special motor control applications not covered by the library of standard ladders you can construct custom ladder dia grams using the input and output devices and their associated symbols for the SAMMS MV device Siemens personnel can build these custom ladder diagrams or you can build your own You can purchase an optional IBM PC compatible software package to develop custom ladder diagrams for special control applications The package also includes a library of standard symbols The package enables you to reconfigure existing SAMMS MV devices to meet changing plant need
85. will show Pro9 Press the UP or DOWN key to change to the display mode 5 Press the F unction key to step through to another function F24 Loss of Load Protection or Warning SAMMS MVX Only 1 Press the LIST key to view the active loss of load setting ON or OFF The factory default setting is warning OFF and the other setting is protection ON This function is disabled for five times the class time after starting or speed or direction changes a When protection ON is selected and the motor current drops below the pickup current value within 360 msec the External Trip LED will light and the SAMMS MV trips b When warning OFF is selected and the motor current drops below the pickup current value within 360 msec the External Trip LED flashes but the SAMMS MV does not trip 2 o change the setting you must be in program mode 3 To change the protection setting press the UP or DOWN key to display ON or OFF options then press ENTER to select the setting that is shown The display blanks while the ENTER key is pressed 4 Return to Step 3 if you select an incorrect setting 5 To exit the program mode press and hold the Function key for several seconds The display will show ProY Press the UP or DOWN key to change to the display mode 6 Press the F unction key to step through to another function F24A Loss of Load Pickup Current SAMMS MVX Only 1 Press the LIST key to view the active settin
86. y reset to disable e enabled ON e disabled OFF 3 28 Using the Hand Held Communicator HHC The HHC provides you with the capability to monitor and alter various motor control and protection functions provided with the SAMMS MV device For example you can monitor and alter control and protection settings such as on delay time and overload class You can also monitor a variety of motor operating conditions such as average current and elapsed running time The SAMMS MV device functions accessible through the HHC are shown in Table 3 7 The number of functions available depends upon the model of the SAMMS MV device you are using The HHC s small size makes it convenient to carry around and use for communication with many SAMMS MV devices To use the HHC connect the HHC s cable which uses a DB 9 connector to the communication port located on the front panel of the SAMMS MV device The HHC receives power and control from the SAMMS MV device When connected to the SAMMS MV device data is displayed on the HHC by a four character seven segment liquid crystal display When discon nected from the SAMMS MV device the HHC does not retain or display data Once connected you can access the functions provided by the SAMMS MV device through the use of the HHC s control keys The HHC has five 5 control keys Function LIST UP DOWN and ENTER The asterisk key serves no function The HHC control keys are described in the following

Siemens Advanced Motor Master System for Medium Voltage Motors SAMMS-MV User's Manual

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