Home

Excel 10 - CentraLine

1. 35 Output Configuration Options essen emnes 35 Input Configuration 35 Equipment Control 35 Zone Control Options eene nente dtr nter Epei Epai pre irri 35 Network Variable 35 Appendix C Complete List of Excel 10 Hydronic Controller User 36 Appendix D Q7750A Excel 10 Zone Manager Point Estimating Guide 74 Approximate Memory Size Estimating 74 REVISION OVERVIEW On the following pages changes have been made compared to the previous release of this document App C Minor corrections in Appendix C 74 2935 3r0909 2 EXCEL 10 CONTROLLER SYSTEM ENGINEERING INTRODUCTION Description of Devices The W7762A and B Controllers are two Hydronic Controllers in the Excel 10 family product line They cover a wide range of control applications including radiators induction units and fan coil units with manual fan switching and are suitabl
2. 12 Fan Interlock not available through 12 Type of Heating and Cooling Equipment 12 pecu E 13 Excel 10 Wall Module 14 Abbreviations and 15 i E 16 Step 1 Plan The System icut eoe Etats xus inde kara citrus 16 uir dupli III 16 Step 2 Determine Other Bus Devices 16 Step 3 Lay Out Communications and Power Wiring 17 E B s 17 Power 19 Step 4 Prepare Wiring Diagrams accen eene tentent nnne nen 20 General Considerations s rsrsrsr escis vati pe e ener tta cade ve Haa 20 lapin 21 E Bus Termination 22 otep 5 Order a te CI Kap xa Esa Tees EGO 23 Step 6 Configure Controllers 4 c iren rerit iere tienen eene retener ine 24
3. SONUS T SHE 71 Comments continued 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C5 Unused Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address Field Name nvoHydStatusP fan_stages_active spare as menses nvoReheat state nvoSensor not_used a mess mess out ot service ne meses wee emus mess mise nvoUnitStatus fan speed switch heat output secondary nvoUnitStatus fan output nvoUnitStatus fan output 74 2935 3r0909 States plus Range Value Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus SNVT_switch value 0 to 100 SNVT_switch state OFF ON NO_REHEAT 6 bits UWORD 0 to 65535 SNVT_lev_disc ST_OFF ST_LOW ST_MED ST_HIGH ST_NUL No Switch Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported Bit not supported SNVT_lev_percent 0 to 100 163 835 INVALID SNVT_lev_percent not supported SNVT_lev_percent 0 to 100 SNVT_
4. 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING APPLICATION STEPS Overview Steps one through seven see Table 7 address con siderations for engineering an Excel 10 Hydronic System These steps are guidelines intended to aid understanding of the product I O options bus arrangement choices con figuration options and the Excel 10 Hydronic Controllers role in the overall EXCEL 50006 System architecture Table 7 Application steps Step No Description 1 Plan The System Determine Other Bus Devices Required Lay out Communication and Power Wiring Prepare Wiring Diagrams Order Equipment Configure Controllers BR OIN Troubleshooting Step 1 Plan The System Plan the use of the W7762 Controllers according to the job requirements Determine the location functionality and sensor or actuator usage Verify the sales estimate of the number of W7762 Controllers and wall modules required for each model type Also check the number and type of output actuators and other accessories required When planning the system layout consider potential expansion possibilities to allow for future growth Planning is very important to be prepared for adding HVAC systems and controllers in future projects NOTEBOOK PC USING E VISION HYDRONIC CONTROLLER SHIELDED INTERFACE CABLE Fig 9 Connecting the portable operator terminal to the E Bus 74 2935 3r0909 16
5. 74 2935 3r0909 28 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Commissioning Commissioning refers to the activities performed to optimize the Hydronic operation to meet the job specification requirements and overall fine tuning of the Hydronic control E Vision is the tool used to perform these activities as described in Appendix B Job Commissioning The CARE database that is generated for the Excel 10 Hydronic Controllers and associated Zone Managers contains information concerning interrelationships and network identifications For this reason it is mandatory to commission assign ID and download all Excel 10 Hydronic Controllers and the Zone Managers from a single database This project database can be backed up and restored to be placed onto various PCs during the commissioning phase but only a single copy can be used at a time and then must be redesignated as the master and given to the next PC for further commissioning N CAUTION If more than one copy of the same database is used in multiple PCs to assign IDs and download to Excel 10 Hydronic Controllers there is currently no means to recombine the multiple copies into a single database for any project If multiple copies are used it is necessary to designate one database as the master and recommission the controllers that do not indicate being commissioned If E Vision displays an assigned ID only the application needs to be downloaded to the co
6. This is the switching level to turn on stage 2 of the cooling equipment if configured as multistage This is the switching level to turn on stage 2 of the cooling equipment if configured as multistage This is the switching level to turn on stage 1 of the heating equipment if configured as multistage This is the switching level to turn on stage 2 of the heating equipment if configured as multistage This is the switching level to turn on stage 3 of the heating equipment if configured as multistage This value only applies to cool outputs configured as multistage outputs and specifies the hysteresis between switching the cool stages ON and OFF This value only applies to heat outputs configured as multistage outputs and specifies the hysteresis between switching the heat stages ON and OFF This is used to shift the temperature setpoint during demand limit control load shedding When nviDIcShed is different from zero the current occupancy setpoint will be decreased by this value for heating and increased for cooling This is the cooling gradient used by the optimum start function to calculate the optimum time for starting to decrease the effective setpoint smoothly from the unoccupied or standby cooling setpoint to the occupied cooling setpoint This is the heating gradient used to determine the optimum time to start increasing the current effective setpoint smoothly to the occupied setpoint at the beginning of scheduled occup
7. Comments 69 continued 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C5 Unused Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value nviReheatRelay SNVT switch NORMAL MODE OFF ON NORMAL MODE NUL nviTest reheat cmd BYTE NORMAL HC MODE OFF1 OFF2 ON1 ON2 nviTest fan control BYTE NORMAL FAN MODE OFF1 OFF2 OFF3 ON1_OFF2_OFF3 OFF1_ON2_OFF3 ON1_ON2_OFF3 OFF1_OFF2_ON3 ON1_OFF2_ON3 OFF1_ON2_ON3 ON1_ON2_ON3 nvoFanSpeed value SNVT_switch value 0 to 100 nvoFanSpeed state SNVT_switch state OFF ON NO_FAN nvoFanSpeedSw value SNVT_switch value 0 to 100 nvoFanSpeedSw SNVT_switch state OFF ON NO_FAN_SPEED_SW nvoHydStatus fan_feedback Bit FAN_OFF_AFTER_ON_CMD 0 FAN_RUNS 1 nvoHydStatus external_active Bit EXTERNAL_NOT_ACTICE 0 EXTERNAL_ACTIVE 1 nvoHydStatus fan_stages_active UBYTE F_OFF F_SPEED1 F_SPEED2 F_SPEED3 F_NO_FAN 55 nvoHydStatus reheat_active SNVT_lev_disc ST_OFF 0 ST_ON 4 ST_NUL No Reheat 255 nvoHyd amp tatus spare field 0 WORD E Hi nvoHydStatusP fan_feedback Same as nvoHydStatus y continued 74 2935 3r0909 70 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C5 Unused Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT
8. Firmware Software stored in a nonvolatile memory medium such as an EPROM I O Input Output the physical sensors and actuators connected to a controller Ix R times R or current times resistance refers to Ohms Law 1 Kelvin LiveCARE The PC based tool used to monitor and change parameters in C Bus devices NEC National Electrical Code the body of standards for safe field wiring practices NEMA National Electrical Manufacturers Association the standards developed by an organization of companies for safe field wiring practices NV Network Variable an Excel 10 Controller parameter that can be viewed or modified over the E Bus network OEM Original Equipment Manufacturer the company that builds the fan coil units PC Personal Computer Pot Potentiometer A variable resistance electronic component located on Excel 10 wall modules Used to allow user adjusted Setpoints to be input into the Excel 10 Controller Subnet An E Bus segment that is separated by a router from its Q7750A Zone Manager TOD Time Of Day the scheduling of Occupied and Unoccupied times of operation VA Volt Amperes a measure of electrical power output or consumption as applicable to an ac device Vac Voltage alternating current ac voltage as opposed to dc voltage XBS Excel Building Supervisor a PC based tool for monitoring and changing parameters in C Bus devices 74 2935 3r0909
9. Order from local Echelon supplier Europe Order from local Echelon supplier Europe Two required per E Bus segment Serial interface to wall module or controller C Bus to E Bus interface Obtain locally from any computer hardware vendor Honeywell US AK3791 one twisted pair AK3792 two twisted pairs Belden 9H2201504 Europe E Bus plenum 22 AWG twisted pair solid conductor non shielded Level IV 140 F 60 C rating Honeywell US AK3781 one twisted pair AK3782 two twisted pairs Belden 9D220150 Europe E Bus non plenum 22 AWG twisted pair solid conductor non shielded Level IV 140 F 60 C rating Honeywell US AK3725 18 AWG 1 0 mm five wire cable Standard thermostat wire bundle Honeywell US AK3752 Outputs Power 14 to 18 AWG 2 5 to NEC Class 2 140 F 60 C rating typical or equivalent 1 0 mm typical or equivalent Honeywell US AK3754 typical or equivalent 14 AWG 2 5 mm two conductor 23 Honeywell US AK3702 18 AWG 1 0 mm twisted pair Non plenum typical or equivalent Honeywell US AK3712 116 AWG 1 5 mm twisted pair Non plenum Non plenum 74 2935 3r0909 EXCEL 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Step 6 Configure Controllers General The process of configuring Excel 10 Hydronic Controllers is the same for all models In all cases the process involves giving the Excel 10 Hyd
10. x pf D x Comments This is used to indicate which other data field in nvoHydStatus has changed since the last time nvoHydStatus was sent on the network If any field has had a significant change only that field is updated and field no indicates which field If three or more fields have changed significantly then all fields are updated and field no is set to 0 All fields are also updated every refresh time 55 s This is the effective occupancy mode resulting from scheduled occupancy mode occupancy sensor information bypass push button or manual operator interface It reports the current state of the remote override button It reports the current scheduled occupancy received via the network This reports the effective state of occupancy sensor s connected either to the input terminals from the network This reports the manual occupancy from the network It reports the state of the occupancy sensor wired to the node continued 59 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value Default SrcWindowHwS nvoHydStatus hw_window_open Bit CLOSED or NOT_ASSIGNED OPEN SrcOutput1S nvoHydStatus output_position 0 SNVT_lev_percent 0 to 100 163 835 INVALID SrcOvrdLedS nvoHydStatus r o led SNVT occupancy OC OC
11. For PWM outputs PwmZeroPosn and PwmFullPosn must also be specified This specifies the output type to drive the connected actuator for the output 2 see above This setting applies to outputs only that have been configured as FLOATING PWM or THERMAL and specifies the direct reverse operation of output 1 This setting applies to outputs only that have been configured as FLOATING PWM or THERMAL and specifies the direct reverse operation of output 2 continued 43 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers left Digital Engineering Units State English Metric or User Address NvName Field Name States plus Range nciHydConfig cycle time 0 SNVT time sec 150 s for floating 0 to 1200 s for stage output 0 to 600 s for floating output 20 to 600 s for PWM output nciHydConfig cycle time 1 SNVT time sec 0 to 1200 s for stage output 0 to 600 s for floating output 20 to 600 s for PWM output MinOffTime1 nciHydConfig min stage off time O SNVT time sec 0 to 600 seconds MinOffTime2 nciHydConfig min stage off time 1 SNVT time sec 0 to 600 seconds nciHydConfig PwmZeroPosn SNVT lev percent 0 to 100 nciHydConfig PwmFullPosn SNVT lev percent 0 to 100 p GainCoolProp nciHydGains si pid Xp 0 SNVT temp 1 25 to 100 0 Disable GainHeatProp nciHydGains si pid Xp 1 SNVT temp p 1 25 to 100 K 0 Disable 1 2 150 s for floating 0s
12. The E Bus communication loop between controllers must be laid out according to the guidelines applicable for that topology Hydronic Controllers use FTT technology that allows daisy chain star loop or combinations of these bus configurations See Application Step 3 Lay Out Communications and Power Wiring for more information on bus wiring layout and see Fig 10 Fig 11 and Fig 12 in Application Step 4 Prepare Wiring Diagrams for wiring details It is important to understand the interrelationships between controllers on the E Bus early in the job engineering process to ensure their implementation when configuring the controllers See Application Step 6 Configure Controllers for information on the various Excel 10 Hydronic Controller parameters and on Excel 10 Hydronic Controller point mapping The T7770 Wall Modules can be installed only as I O devices or additional wiring can be run to them for the E Bus network to allow a CARE E Vision operator terminal to have access to the E Bus It must be determined and documented prior to installation that T7770 Wall Modules will have their E Bus network jacks connected Step 2 Determine Other Bus Devices Required A maximum of 62 nodes can communicate on a single E Bus segment If more nodes are required a router is necessary Using a router allows up to 125 nodes divided between two E Bus segments The router accounts for two of these nodes one node on each side of the router
13. W7762 HYDRONIC CONTROLLER OCCUPANCY SENSOR CHANGEOVER CONTACT AIRFLOW CONTACT WINDOW CONTACT MOTION SENSOR NOT USED NOT USED WALL MODULE CONNECTIONS 24 VAC 24 VAC COM OUT 1 COM OUT 1 OPEN OUT 1 CLOSE OUT 2 COM OUT 2 OPEN OUT 2 CLOSE E BUS LON E BUS LON lt LonWorks NETWORK IN gt LonWorks NETWORK OUT A Wall module setpoint connection for W7762B only Fig 16 W7762 Hydronic Controller wiring example Table 11 Output assignments for various actuator types 4 5 16 17 18 Output type Out 1 Terminal Out 2 Terminal Fioatng 24Vae_ open ose 24Vac open cose stage 24Vae ovof 24Vac on pem E Bus Termination Module One or two E Bus Termination Modules part no 209541B are required for an E Bus with FTT devices on it depending upon the configuration Double termination is only required when the network is a daisy chain configuration and the total wire length is greater than 1640 ft 500 m The maximum lengths described in Step 2 must be adhered to for either a daisy chain or free topology E Bus layout See Fig 17 for connection details for a doubly terminated bus See Fig 18 for connection details for a singly terminated bus NOTE The Q7750A Zone Manager has an internal ter mination circuit although jumpers are required at the terminal block to connect it See form number 95 7509 2 for details 74 2935 3r0909
14. a Q7750A Excel 10 Zone Manager can take one node and two slots are available for operator terminal nodes leaving 120 nodes available for Excel 10 Hydronic Controllers All 120 controllers are able to communicate through the router A Q7750A Excel 10 Zone Manager is required to connect the E Bus to the standard EXCEL 5000 System C Bus Each Excel 10 Zone Manager can support no more than 120 W7762s This is a limit set in the Excel 10 Zone Manager database and is an absolute maximum Each E Bus segment is set up with two unused nodes to allow for an E Vision operator terminal to be connected to the E Bus Multiple E Vision terminals can be connected to the bus at the same time Table 8 summarizes the E Bus segment configuration rules EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table 8 E Bus configuration rules and device node numbers One E Bus Segment Example Maximum Number of Nodes Equals 62 One Q7750A Excel 10 Zone Manager 1 node Port for operator terminal access E Vision 1 node Maximum number of Excel 10 Controllers 60 nodes wall modules are not E Bus nodes Total 62 nodes Two E Bus Segments Example Maximum Number of Nodes Equals 125 One Q7750A Excel 10 Zone Manager 1 node One Q7751A Router 2 nodes 1 in each Bus Segment Ports for operator terminal access two E Vision terminals 2 nodes 1 in each Bus Segment Maximum number of Excel 10 Contr
15. 0s s s 1K 1K GainCoollnt nciHydGains si pid Tn 0 SNVT time sec 10 to 3200 seconds 0 lt Disable GainHeatint nciHydGains si pid Tn 1 SNVT time sec 10 to 3200 seconds 0 lt Disable GainCoolDer nciHydGains si pid Tv 0 SNVT time sec 10 to 3200 seconds 0 Disable GainHeatDer nciHydGains si pid Tv 1 SNVT time sec 10 to 3200 seconds 0 lt Disable CoolBoost nciHydGains si boost 0 SNVT temp p 0 5 to 10K 0 Disable HeatBoost nciHydGains si boost 1 SNVT temp p 0 5 to 10K 0 Disable nciNumValve SNVT count TWO PIPE FOUR PIPE FOUR PIPE continued 74 2935 3r0909 44 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments This specifies for the output 1 configured as FLOATING the runtime of the valve time to run from fully closed to fully open e PWM the cycle time e ONE STAGE TWO STAGE and THREE STAGE minimum ON time before switching to the next stage This specifies for the output 2 configured as e FLOATING the runtime of the valve time to run from fully closed to fully open PWM the cycle time e ONE STAGE TWO STAGE and THREE STAGE minimum ON time before switching to the next stage This is only used for ONE STAGE TWO STAGE and THREE STAGE output 1 and specifies the minimum OFF time before switching to the next stage
16. mode by settin DestManOcc to OC STANDBY via the network When in Standby mode the Hydronic Controller uses the Standby Cooling or Heating setpoint SptCoolStby or SptHeatStby Window Sensor The digital input for a window contact provides the algorithm with a means to disable its temperature control activities if someone has opened a window or door in the room If no window sensor is connected to the controller the sensor from another node may used by binding it to DestWindow Frost protection remains active controller enables heating circuit with room temperatures below 46 F 8 C Normal temperature control resumes when the window closes 74 2935 3 0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Demand Limit Control When a high electrical demand signal is received from an energy management system via the E Bus network DestDldShed the controller uses DIcStptBump to shift the current setpoint down for heating and up for cooling by the configured value to save energy SETPOINT HEATING GRADIENT STANDBY OR UNOCCUPIED HEATING SETPOINT OCCUPIED HEATING SETPOINT SCHEDULED TIME OCCUPIED OPTIMUM START TIME HEATING Fig 4 Optimum start heating Optimum Start Gradients There are two parameters RecRampCool and RecRampHeat that can be configured to cause the cooling and heating setpoints respectively to ramp up to their Occupied settings from their Unoccupied or Standby
17. processor is initialized state 3 Slow blink controlling normal state 4 Fast blink controller in alarm Manual Mode The Hydronic Controller can be put into a manual mode that disables the control algorithms and allows manual setting of outputs for system checkout The variable nviManualMode must be set to Mode Manual using the E Vision PC tool Inputs are read and digital filtering of analog inputs is turned off to speed up settling time Input network variables are received and output network variables are sent periodically Triac outputs can be set to any combination of on off or can be set to a test position based upon the configured valve runtime cycle time The override LED can be commanded on off in this mode also See the E Vision User Guide section for Manual Mode for detailed procedures 33 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING APPENDIX A USING E VISION TO COMMISSION A HYDRONIC CONTROLLER Temperature Sensor Calibration The temperature sensor in the Excel10 wall modules can be calibrated to correct for sensor inaccuracies wire resistance etc This allows the Excel 10 Hydronic Controller to sense the space temperature with a high degree of accuracy Procedure Select the controller being worked on with E Vision see the E Vision User Guide for details on using E Vision From within E Vision with the desired Hydronic plant loaded and the SLTA Q7752A connected to the E Bus or v
18. 0 to 255 NodeVerBug nroPgmVer bug ver UBYTE 0 to 255 NodeTypeNumber node type UBYTE 11 HYD2 74 2935 3r0909 66 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT XN Comments This is an output showing the terminal load which is a percentage between 160 and 160 based on the control output level Negative values indicate heating load and positive values indicate cooling load 100 is the full terminal capacity An absolute terminal load value of more than 100 indicate that the terminal is not able to supply the required heating or cooling energy which at the zone controller should cause a demand for more supply energy nvoHeatOutput will be transmitted immediately when its value has changed significantly gt 190 This output variable reports the last operating mode of the control algorithm It is not set to HVAC OFF if the Heating and Cooling Output shows 090 OFF is set when the Device is disabled from nviRequest nviManualMode or nviApplicMode This reports the actual heating output value Any change forces nvoUnitStatus to be transmitted immediately This reports the actual cooling output value A change of more than 196 forces nvoUnitStatus to be transmitted immediately This reports the actual alarm status of the controller and is set to ALARM NOTIFY
19. Bus devices C Bus Honeywell proprietary Control Bus for communications between EXCEL 5000 System controllers and components CPU Central Processing Unit an EXCEL 50009 System controller module E Bus Echelon LonWorks network for communication among Excel 10 Controllers E Bus Segment An E Bus section containing no more than 60 Excel 10s Two segments can be joined together using a router Echelon The company that developed the LonWorks network and the Neuron chips used to communicate on the E Bus EMI Electromagnetic Interference electrical noise that can cause problems with communications signals EMS Energy Management System refers to the controllers and algorithms responsible for calculating optimum operational parameters for maximum energy savings in the building EEPROM Electrically Erasable Programmable Read Only Memory the variable storage area for saving user Setpoint values and factory calibration information EPROM Erasable Programmable Read Only Memory the firmware that contains the control algorithms for the Excel 10 Controller E Vision PC based tool used for configuration and commissioning of Excel 10 devices Excel 10 Zone Manager A controller that is used to interface between the C Bus and the E Bus The Excel 10 Zone Manager also has the functionality of an Excel 100 Controller but has no physical I O points NOTE The Q7750A Zone Manager may be referred to as E Link
20. C or K relative setpoint 5 to 5 K absolute setpoint Maximum limit setpoint pot limit for setpoint knob in either degrees F absolute setpoint 53 6 to 9 DDF 86 F for 86 F or DDF relative setpoint 9 to 9 DDF absolute setpoint limit for setpoint knob in either degrees C absolute setpoint 12 to 30 C for 30 C or K relative setpoint 5 to 5 K absolute setpoint Digital input not used not used window closed occupied sensor cool changeover window open unoccupied sensor heat changeover movement no movement NOTES 1 The temperature sensor option no sensor requires that either the Hydronic controller is configured as a slave unit receiving heating and cooling control levels from the master unit via the network or that it is receiving temperature information over the network from another device 2 The digital input option to be selected is the condition in which the input will be high switch contact closed 74 2935 3r0909 26 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Equipment Control The available options for equipment control configurations with the default values shown are listed in the following table See Configurations section above for more information on parameters Table 15 Hydronic Controller equipment control configuration options Output 1 valve direction direct direct reverse Output 2 valve direction direct direct reverse Output 1 minimum stage off time 0
21. DISABLE when nviManualMode SUPPRESS ALARMS This reports the status of the window sensor It allows the hard wired window sensor to be used by other nodes on the network See above This identifies the Excel 10 node type by an eight byte constant describing the node type major and minor functional release number and bug fix First character Second character Third character Fourth character Major Functional Release Number 1 Addor delete a network variable NV nv field 2 Change the name of a nv or nv field 3 Range or type short long of data in a nv field is changed 4 Enumerated value list of a nv field is changed NOTE Algorithm changes or bug fixes may also be included Minor Functional Release Number 1 Network variables are unchanged 2 Functionality of the control algorithm has been revised and affects compatibility with other nodes or the equipment being controlled 3 The network interface or physical input output subsystem was revised and affects compatibility with other nodes NOTE Bug fixes may also be included in a minor functional release Bug Fix Number Network variables are unchanged A change to the algorithm network interface or physical input output subsystem was made that does not affect compatibility with other nodes or the equipment controlled by the node Node type number 67 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C5 Unused Var
22. Excel 10 Hydronic Controller Excel 10 Controllers number of attached Excel 10 Hydronic Controllers C Bus points including mapped points and 74 2935 3r0909 others for example Remote Points number of mapped points for each Hydronic Controller including One to Many and Many to One mechanism number of different Excel 10 Controller types currently one Map complexity 20 using One to Many and not using points with read write Mapped points Excel 10 Controller types ability 30 average 45 many points with read write ability 74 EXCEL 10 CONTROLLER SYSTEM ENGINEERING 75 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING 74 2935 3 0909 76 EXCEL 10 CONTROLLER SYSTEM ENGINEERING 77 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Rolle Z A La Pi ce 16 Switzerland by its Authorized Representative Automation and Control Solutions Honeywell GmbH B blinger Strasse 17 71101 Sch naich Germany Phone 49 7031 63701 Fax 49 7031 637493 http ecc emea honeywell com Subject to change without notice Printed in Germany 74 2935 3r0909
23. Generali IMPERIUM IRI E DR 24 OUTPUTS m c 25 lasse CE 26 COMO PET r tances 27 Switching Levels ei o ete ees Spo rog p Cox mas ko eave 27 20 DER 28 IEEE rem de 28 PIDE uisaute EE 28 COMMISSIONING TERT IR e E 29 ID iM 29 Excel 10 Hydronic Controller Point 29 Step 7 TIro bleshooting creed tnter crm nete e nee STE cake 31 74 2935 3 0909 C iffi LONMARK 10 CONTROLLER SYSTEM ENGINEERING Troubleshooting Excel 10 Hydronic Controllers Wall Modules 31 cca ch scit ih ee taut buco setate nha Rose retos ses tede dee 31 Broadcasting the Service 33 W7762 Controller Status 33 Manual eec 33 Appendix A Using E Vision to Commission a Hydronic 34 Temperature Sensor 34 E EE 34 Appendix B Configuring for Master Slave
24. Setpoint Effective Effective Cooling Spt Heating Spt Knob Cooling Spt Heating Spt Occupancy Mode NOTES 1 Sample value shown Limited by default configuration settings to the range of 5 to 5 C 2 Limited to the range of 10 to 35 C 3 Configured Cooling Setpoint Setpoint Knob 4 Configured Heating Setpoint Setpoint Knob 74 2935 3r0909 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Bypass Bypass Mode During Unoccupied periods the bypass push button on the Wall Module may be used to cause the Occupied setpoints to be used by the control algorithm The mode may also be initiated by setting DestManOcc to BYPASS via the network The controller remains in Bypass mode until 1 The bypass timer has timed out or 2 The user again presses the Wall Module push button to cancel Bypass mode or 3 The occupancy schedule DestSchedOcc network input switches the mode to Occupied 4 The network input DestManOcc is set to to OC NUL The Excel 10 wall module indicates the current bypass mode status see Excel 10 wall module literature for further information Bypass Timer When the bypass mode has been activated the bypass timer is set to BypTime default of 180 minutes at the end of which the mode reverts to the original occupancy state see Excel 10 wall module literature for further information Continuous Unoccupied Mode This mode is entered when an Excel 10 wall module is con
25. This is only used for ONE STAGE TWO STAGE and THREE STAGE output 2 and specifies the minimum OFF time before switching to the next stage This specifies the zero position for PWM actuators This setting applies to PWM actuators only and is used for both actuators if both are configured as PWM actuators This specifies the fully open position for PWM actuators This setting applies to PWM actuators only and is used for both actuators if both are configured as PWM actuators This is the throttling range for use in the proportional portion of the PID loop gain for the cooling mode Since HYD2 version 1 0 2 the range of configurable values is 2 to 100K for PI or 1 25 for P control For older versions the valid range is 4 to 100K This is the throttling range for use in the proportional portion of the PID loop gain for the heating mode Since HYD2 version 1 0 2 the range of configurable values is 2 to 100K for PI or 1 25 for P control For older versions the valid range is 4 to 100K This is the integral time for use in the integral portion of the PID loop gain for the cooling mode This is the integral time for use in the integral portion of the PID loop gain for the heating mode This is the derivative time for use in the derivative portion of the PID loop gain for the cooling mode This is the derivative time for use in the derivative portion of the PID loop gain for the heating mode This is the temperature range to be added to the coo
26. has not been bound Where the ZEB for occupied is used this derives from the difference of occupied cool and occupied heat This is the configured setpoint that applies to the standby heating mode Where the ZEB for standby is used it derives from the difference of standby cool and standby heat This is the configured setpoint that applies to the unoccupied heating mode This is the parameter that determines the time the controller remains in OCCUPIED mode before reverting to the original occupancy mode after pressing the override button at the wall module or initiating BYPASS via the network When the bypass mode has been activated the bypass timer is setto ui bypass time When the timer expires nvoHydStatus occ status hw override reverts from OC BYPASS to OC NUL to quit the bypass override function This is the low limit for the setpoint knob It can be relative or absolute depending on the configuration in nciWallMod set pnt knob This is the high limit for the setpoint knob It can be relative or absolute depending on the configuration in nciWallMod set pnt knob The space temperature sensor is corrected by adding this calibration setting an offset value to the sensed value This specifies whether the setpoint used is from the knob on the wall module connected to the controller or ifrom the network via nciTempSetPts If set to NO all setpoints to be used come from the network via nciTempSetPts If set to YES an additional option
27. in nvoAlarmLog and nvoHydStatus alarm type Alarm reporting is suppressed by settin nviManualMode to SUPPRESS ALARMS in which case nvoAlarm type is set to ALARM NOTIFY DISABLEd Alarm reporting is turned on again by setting nviManualMode to UNSUPPRESS ALARMS after which all existing alarms or ALM NO ALARM are reported one at a time continued 55 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value SrcAlarmLog1 nvoAlarmLog alarm type 0 Same as nvoAlarm type i See nvoAlarm type SrcAlarmLog2 nvoAlamLog alarm alarm type Same as nvoAlarm type SameasnvoAlarm ype nvoAlarm type meNamiog alam pe as sam per SamessmoMampe __ meNamios alarm as SeemoMemwpe SrcAlarmStatus1 nvoAlarmStatus error bit 0 UBYTE Bit coded Alarm ALM NODE OFF ALM FROST ALM INVALID SETPNT ALM TEMP SENSOR FAIL ALM SETPNT KNOB FAIL ALM FAN SPEED SW FAIL ALM FAN FAILURE COMFAIL SPACETEMP SrcAlarmStatus2 nvoAlarmStatus error bit 1 UBYTE Bit coded Alarm COMFAIL HVACMODE ALM COMFAIL SETPTOFFS COMFAIL SCHEDOCC ALM COMFAIL DLC COMFAIL TEMPRESE
28. input variable belongs to the Node Object and provides the mechanism to request a particular mode for a particular object within a node See above Commanding any modes other the ones listed will result in an invalid request when reading nvoStatus This allows an occupancy sensor of another Excel 10 controller to be used to indicate the sensed occupancy state of the space NUL means no input is available because it is not bound bound but not received periodically or not configured by nciHydConfig DI1 config More than one occupancy sensor may be bound to nviSensorOcc If any one sensor detects occupancy the controller considers the space occupied This is an input intended for binding third party nodes to authorize them for setpoint modifications When this has been bound and a valid update is received the local configured setpoints will no longer be directly used to determine the current occupancy setpoint For OCCUPIED and STANDBY modes this is used with the appropriate ZEB derived from the configured setpoints for UNOCCUPIED mode the setpoint does not depend on this input but on nciTempSetPts unoccupied cool heat only nviSetpoint is stored in RAM and gets lost after power failure In this case the setpoints of nciTempSetPts will be used until a valid nviSetpoint is received This is an input intended for binding third party nodes to authorize them for setpoint shifting nviSetPtOffset is stored in RAM and will be initialized to
29. may be suppressed for reporting by nvoAlarm See above See above This is an output used to coordinate the slave devices with the master controller It reflects the current heat cool medium based on supply energy available This is required for configurations with heat cool changeover HVAC OFF switches the heat cool control off while still providing frost protection and and reporting status and alarms This is the cooling output that is typically used for monitoring or bound to a cooling actuator node or another controller operating as slave nvoCoolOutput will be transmitted immediately when its value has changed significantly gt 1 and periodically according to nciSndHrtBt The output value represents the output of the control algorithm but is limited to a range of 0 to 100 This indicates the binary states of the controller s digital input that can be configured to support a window contact an occupancy sensor an airflow contact heat cool changeover contact or monitoring contact It can be bound to another Excel 10 controller or a third party node See above This is the output reflecting the effective occupancy mode derived from the time schedule occupancy sensor override button and network occupancy override continued 57 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left Digital State or Engineering Units English Metric o
30. occupancy mode LCD DISPLAY is only used for T7560 Wall Modules The display shows the occupancy mode with different symbols and the override mode with flashing symbols 47 74 2935 3 0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING User Address DestHvacMode DestDIcShed DestEmerg DestManCool DestManHeat DestManOcc DestManMode 74 2935 3r0909 Table C3 Input Variables for W7762 Controllers left NvName nviApplicMode nviDIcShed nviManOccCmd nviManualMode Field Name Engineering Units English Metric or States plus Range SNVT hvac mode HVAC AUTO HVAC HEAT HVAC COOL HVAC OFF 128 to 127 NORMAL SETPOINT SHIFT SNVT hvac emerg EMERG NORMAL EMERG PRESSURIZE EMERG DEPRESSURIZE UWORD 0 to 65535 SNVT lev percent 0 to 100 163 835 INVALID SNVT_lev_percent 0 to 100 163 835 INVALID SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_BYPASS OC_STANDBY OC_NUL BYTE MODE_ENABLE MODE_DISABLE MODE_MANUAL SUPPRESS_ALARMS UNSUPPRESS_ALARMS 48 Digital State or Value Default HVAC AUTO if bound but fails to be received or at application restart if bound but fails to be received or at application restart EMERG NORMAL at application restart 0 if bound but fails to be received 65535 for 60 s at application restart at application restart MODE ENABLE and UNSUPPRESS ALARMS at application resta
31. set pnt knob must be set to specify type of setpoint adjustment see below This setting specifies the usage of the setpoint knob on the wall module for the occupied setpoint OFFSET specifies a relative scale on the wall module where the setpoint is calculated by adding the setpoint potentiometer value 5 K to the appropriate value of nciTempSetPts ABSOLUTE MIDDLE specifies an absolute scale on the wall module The setpoint knob directly determines the center point of occupied cooling and heating setpoints The respective cooling and heating setpoint is determined by the setpoint knob position adding or subtracting half of the user selectable ZEB defined in nciSetPnts occ mode cool or nciSetPnts occ mode heat This applies to occ mode OCCUPIED and STANDBY This setting determines the behavior of the override button BYPASS UNOCCUPIED allows overriding the current occupancy mode to OCCUPIED for a configurable bypass time or causing a permanent override to UNOCCUPIED BYPASS allows only the temporary override to OCCUPIED and canceling it This setting configures the priority of the local wall module or central network interface override concerning override button If NETWORK WINS is set and the network sends value NUL then the override button is active This setting configures the display of occupancy and or override LED OVERRIDE shows the override from the bypass button or from the network LED OCCUPANCY shows the effective
32. summary Possible Configurations Option Fan interlock enabled disabled Hydronic system type two pipe four pipe Heating actuator type floating floating mid one for heat cool one stage two stage three stage PWM thermal Cooling actuator type floating floating mid one for heat cool one stage two stage three stage PWM thermal igital i not used window closed occupied sensor airflow detector cool changeover movement window open unoccupied sensor no airflow heat changeover input Digital input no movement Wall module option local shared Temperature sensor type none NTC non linearized NOTE The floating mid option is only for changeover applications and uses only one of the two outputs 74 2935 3r0909 Fan Interlock not available through E Vision A fan interlock can be configured that prevents heating or cooling outputs from being turned on in the event of a fan failure where an airflow detector is installed to detect fan failure As the Hydronic Controller has no fan outputs the interlock feature is applicable only to systems with manual fan switches Type of Heating and Cooling Equipment W7762 controllers can operate with either two pipe or four pipe systems A two pipe system requires a changeover input to the controller hardware or network input W7762 controllers can operate with a variety of actuators for heating and cooling equi
33. zero after application restart or power failure If nviSetPtOffset is bound and fails to be received periodically as configured with nciRcvHrtBt it will be reset to zero This is the space temperature transmitted from another Excel 10 controller or another node that has a temperature sensor wired to it If bound or has a value other than INVALID then it is used as the sensed space temperature instead of the wired wall module s temperature nviSpaceTemp may be set to a value other than INVALID using a network management tool when nviSpaceTemp is not bound to set the temperature to a fixed value This is used by factory test OEM field test field installation and field testing to manually command the physical output 1 when the node has been put into manual mode nviManualMode MODE MANUAL NORMAL MODE output 1 remains in its current position OFF1_OFF2 1 OFF2 OFF1 ON2 1 set the individual triacs on or off TESTPOSITION sets output based on output1 test pos This is used for the TESTPOSITION of the output1 cmd and is based on the configured runtime cycle time Same as output1 cmd for output 2 Same as output1 test pos for output 2 This can be used to test the wall module LED when nviManualMode MODE MANUAL continued 51 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Table C3 Input Variables for W7762 Controllers left Engineering Units English Metric or User
34. 0 VA transformer is not sufficient due to the line loss From Fig 13 a 40 VA trans former is just under 100 percent loaded for the 37 VA con troller and therefore has a secondary voltage of 22 9 volts Use the lower edge of the shaded zone in Fig 13 that represents the worst case conditions When the x R loss of four volts is subtracted only 18 9 volts reaches the controller which is not enough voltage for proper operation In this situation the engineer basically has three alternatives 1 Use a larger transformer for example if an 80 VA model is used see Fig 13 an output of 24 4 volts minus the four volt line loss supplies 20 4 volts to the controller Although acceptable the four volt line loss in this example is higher than recommended See the following IMPORTANT 2 Use heavier gauge wire for the power run 14 AWG 2 0 mm wire has a resistance of 2 57 ohms per 1000 ft that using the preceding formula gives a line loss of only 1 58 volts compared with 4 02 volts This would allow a 40 VA transformer to be used 14 AWG 2 0 mm wire is the recommended wire size for 24 Vac wiring 3 Locate the transformer closer to the controller thereby reducing the length of the wire run and the line loss The issue of line loss is also important in the case of the out put wiring connected to the Triac digital outputs The same formula and method are used The rule to remember is to keep all power and output wire runs as
35. 1 NOT USED 24 VAC 25 NOT USED 24 VAC COM 24 illi NOT USED OUT 1 COM Im DA 1 EARTH 3 OUT 2 COM GROUND OUT 2 OPEN OUT2CLOSE fiaj E BUS LON E BUS LON 120 240 VAC If the W7762 Controller is used in UL 1995 equipment and the primary power is more than 150 Vac ground one side of the transformer Fig 14 Power wiring details for one Excel 10 per transformer IMPORTANT Notes on power wiring All field wiring must conform to local codes and ordinances or as specified on installation wiring diagrams Tomaintain NEC Class 2 and UL ratings the installation must use transformers of 100 VA or less capacity Formultiple controllers operating from a single transformer the same side of the transformer secondary must be connected to the same input terminal in each controller Forthe W7762 Controller which has Triac outputs all output devices must be powered from the same transformer as the one powering the W7762 Controller Use the heaviest gauge wire available up to 14 AWG 2 0 mm with a minimum of 18 AWG 1 0 mm for all power and earth ground connec tions To minimize EMI noise do not run Triac and or relay output wires in the same conduit as the input wires or the E Bus communications wiring Unswitched 24 Vac power wiring can be run in the same conduit as the E Bus cable Step 4 Prepare Wiring Diagrams General Considerations The
36. 2 HYDRONIC CONTROLLER ECHELON TERMINATION MODULE 209541B TERMINATION UP TO 60 MODULE 209541B TOTAL NODES Fig 11 E Bus wiring layout for two daisy chain network segments TERMINATION MODULE SINGLY TERMINATED TERMINATION MODULE TERMINATION MODULE MIXED TERMINATION MODULE LOOP Fig 12 Free topology E Bus layout examples Do not use different wire types or gauges on the NOTE See the E Bus Termination Module section for same E Bus segment The step change in line additional details impedance characteristics would cause unpredictable reflections on the bus When the IMPORTANT use of different types is unavoidable use a Notes on Communications Wiring Q7751A Router at the junction All field wiring must conform to local codes and ordinances 74 2935 3r0909 18 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Do not use shielded cable for E Bus wiring runs The higher capacitance of the shielded cable will cause degradation of communications throughput In noisy high EMI environments avoid wire runs parallel to noisy power cables or lines containing lighting dimmer switches and keep at least 3 in 76 mm of separation between noisy lines and the E Bus cable Make sure that neither of the E Bus wires is grounded Power Wiring A power budget must be calculated for each Excel 10 W7762 Controller to det
37. 22 stage 3 ava avec YELLOW YELLOW Fig 17 Termination Module connections for a doubly terminated FTT network ORANGE Fig 18 Termination Module connections for a singly terminated FTT network EXCEL 10 CONTROLLER SYSTEM ENGINEERING Step 5 Order Equipment After compiling a bill of materials through completion of the previous application steps refer to Table 12 for ordering information Contact Honeywell for information about Controllers and Wall Modules with no logo Table 12 Excel 10 Hydronic Controller ordering information Part Number Product Description Comments Excel 10 Hydronic Controllers W7762A1045 with setpoint knob C absolute W7762A1052 with setpoint knob relative W7762B1019 no setpoint knob Excel 10 Wall Modules T7460 See Excel 10 wall module literature for details T7560 T7770 Excel 10 Sensors C7068A1007 Europe Air Temperature Sensor Echelon Based Components and Parts Q7751A2002 US FTT E Bus Router UK Europe Q7752A2001 US UK Europe FTT E Bus Serial Interface SLTA 209541B FTT Termination Module 205979A US only SLTA Connector Cable for E Bus Excel 10 Zone Manager Q7750A2003 FTT E Bus Zone Manager XD 505A 9600 Baud C Bus Communications 1 Megabit Baud Rate C Bus Communications Submodule Cabling Serial Interface Cable male DB 9 to female DB 9 or female DB 25
38. 22 AWG or plenum rated level IV 22 AWG non shielded twisted pair solid conductor wire as the recommended wire size see Table 10 for part numbers An FTT E Bus can be wired in daisy chain star loop or any combination thereof as long as the maximum wire length requirements given in Step 2 are met NOTE Due to the transformer isolation the bus wiring does not have a polarity that is it is not important which of the two E Bus terminals are connected to each wire of the twisted pair E Bus networks can be configured in a variety of ways but the rules listed in Table 8 always apply Fig 10 and Fig 11 depict two typical daisy chain E Bus network layouts one as a single bus segment that has 60 nodes or less and one showing two segments Fig 12 shows examples of free topology bus layouts using 2000 series devices The bus configuration is set up using the Network Manager tool from within E Vision see the E Vision User Guide W7762 HYDRONIC CONTROLLER TERMINATION MODULE 209541B NOTE C7750A Zone Manager has internal termination module with jumpers installed as shown Fig 10 E Bus wiring layout for one daisy chain network segment 17 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Q7750A2xxx ZONE MANAGER W7762 HYDRONIC CONTROLLER W7762 HYDRONIC CONTROLLER Honeywell UP TO 60 TOTAL NODES W7762 HYDRONIC CONTROLLER LONWORKS ROUTER TERMINATION MODULE 209541B W776
39. Address NvName Field Name States plus Range DestSchedOcc nviTodEvent current state SNVT tod event current state OC OCCUPIED UNOCCUPIED STANDBY NUL DestSchedOccNext nviTodEvent next state SNVT tod event next state OC OCCUPIED UNOCCUPIED STANDBY NUL DestSchedOccTime nviTodEvent time to next state SNVT tod event time to next state UWORD 0 to 2880 minutes DestWindow nviWindow value SNVT switch value 0 to 100 nviWindow state SNVT switch state CLOSED OPEN NO WINDOW 74 2935 3r0909 52 Digital State or Value Default OC OCCUPIED if bound but fails to be received or at application restart OC OCCUPIED if bound but fails to be received or at application restart 0 if bound but fails to be received or at application restart 0 if bound but fails to be received or at application restart NO WINDOW if bound but fails to be received or at application restart EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C3 Input Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT dil HEN NK COO o Comments This indicates to the node whether the space is currently scheduled to be occupied standby or unoccupied This indicates to the node whether the next scheduled occupancy mode will be occupied standby or unoccupied This information is required by the controller to pe
40. B Hydronic Controller Specification Data 95 7563 Excel 10 W7762A B Hydronic Controller Installation Instructions 74 3083 Excel 10 T7460 Wall Modules Specification Data 95 7610 Excel 10 T7460 Wall Modules Installation Instructions 74 3097 Excel 10 T7560 Wall Modules Specification Data 95 7620 Excel 10 T7560 Wall Modules Installation Instructions 74 2697 Excel 10 T7770 Wall Modules Specification Data 95 7538 Excel 10 T7770 Wall Modules Installation Instructions 74 2950 Excel 10 Q7750A Excel 10 Zone Manager Specification Data 95 7509 Excel 10 Q7750A Zone Manager Installation Instructions 95 7554 Excel 10 FTT LPT 209541B Termination Module Installation Instructions 74 2935 3r0909 95 7510 Excel 10 Q7751A Router Installation Instructions US only 95 7511 Excel 10 Q7752A Serial Interface Installation Instructions US only 74 2039 XBS User s Manual 74 5018 XBS Application Guide Product Names The W7762 Hydronic Controller can use any of the following Excel 10 wall modules T7460A with temperature sensor T7460B with temperature sensor and setpoint adjustment T7460C with temperature sensor setpoint adjustment and bypass button and LED e T7560A with temperature sensor unit enable button setpoint adjustment bypass button LCD display and configurable fan override with up to five settings T7770A Wall Module with temperature sensor and optional E Bus jack T7770B Wall Module with temperature
41. CUPIED UNCCCIPIED OC BYPASS STANDBY NUL SrcHydModeS nvoHydStatus mode BYTE CTL COOL CTL HEAT CTL PRESSURIZE CTL DE PRESSURIZE CTL MODE MANUAL CTL MODE FACTORY TEST CTL FLOATING OUT SYNCH CTL FAN SWITCH OFF CTL START UP WAIT CTL DISABLED SrcOutput2S nvoHydStatus output position 1 SNVT lev percent 0 to 100 163 835 INVALID SrcRmTempSptEffS nvoHydStatus active_set_pt SNVT_temp_p 10 to 35 C 327 67 C INVALID SrcRmTempEffS nvoHydStatus space_temp SNVT_temp_p 0 to 40 C 327 67 C INVALID Ee mese _ emae Bit NOT ACTICE ACTIVE SrcWindowS nvoHydStatus eff window open Bit CLOSED or NOT ASSIGNED OPEN SrcRestBypassTimeS nvoHydStatus rest bypass time UWORD 0 to 65535 Min continued 0 1 2 3 255 0 1 2 3 4 5 6 7 8 255 0 1 0 1 0 1 74 2935 3 0909 60 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT X X This variable reports the current state of the remote override LED that indicates the effective schedule override resulting from the bypass push button or a network override OC_OCCUPIED 2 flashes per second OC_UNOCCIPIED 1 flash per second OC_BYPASS on OC_STANDBY 2 flashes per second OC_NUL off X X X This is the current operating mode of the node determined by many inputs and arbitrated by control logic CTL_PRESSURIZE and C
42. EERING APPENDIX COMPLETE LIST OF EXCEL 10 HYDRONIC CONTROLLER USER ADDRESSES Table C1 Analog points engineering units English Units Inch Pound Standard International Units SI Abbreviations Abbreviations Measured Item used in CARE used in CARE and E Vision and E Vision Degrees Fahrenheit F Degrees Celsius C Delta Degrees Fahrenheit DDF Kelvin K The following tables list all network variables associated with the W7762 Controller and the default User Address names Point attributes given are defined as follows SHD Sharable bindable points can be set up for data sharing in Command Multiple Points Read Multiple Points or Refer Excel 10 Points as either a data source or a destination MAP Mappable can be converted into a C Bus point use by C Bus devices A mappable point has a one to one relationship with a C Bus User Address DIR Direct Access points are accessible through the Subsystem Points mechanism in XBS MON These points are viewable within the E Vision Controller Monitoring on line screen PAR refers to control parameters settable in the Application Selection dialog boxes in E Vision Heartbeat These points are either sent out on the network outputs or received from the network inputs at a certain fixed interval NOTES 1 Mapped points be viewed and changed on C Bus devices such as an 581 582 and XI584 and on XBS central and LiveCARE 2 Al
43. Heartbeat HBT Comments This specifies whether a direct wired room temperature sensor is connected to the node or room temperature value from the network is used This variable specifies the digital input function and type of switch The option to be selected is the one which is the condition for a closed switch contact e g normally closed window switch contact DI WINDOW CLOSED normally open window switch contact DI WINDOW OPEN NOTE The digital input cannot be configured for an airflow detector with E Vision DI MOVEMENT and DI NO MOVEMENT are supported starting with HYD2 version 1 0 2 These configuration settings cause the controller to retain the occupied state for 15 minutes after the last movement is detected This specifies the operating mode of the output 1 This specifies the operating mode of the output 2 This setting is ignored for nciNumValve TWO PIPE This specifies the output type to drive the connected actuator for the output 1 FLOATING FLOATING MID This setting considers valve reverse and cycle time Synchronization is performed at every restart and at least once per day ONE STAGE Triac 2 is not used TWO STAGE THREE STAGE Triac 1 and 2 used triac 1 and 2 both on for stage 3 When configured as multistage cycle time and min stage off time are considered PWM THERMAL Triac 2 is not used Triac 1 operates as a pulse width modulated output and the cycle time must be specified in cycle time
44. Honeywell Excel 10 W7762A B HYDRONIC CONTROLLERS HONEYWELL EXCEL 5000 OPEN SYSTEM Revision overview Introduction Application Steps U S Registered Trademark Copyright 2009 Honeywell Inc Rights Reserved SYSTEM ENGINEERING CONTENTS 2 II 3 Description of DEVICES c 3 deae o RT P 4 Organization of 4 Applicable Literature 2 4 Product 4 Control Applicaton ERRARE HIER 5 iSronibliu E PH 5 Cllr 6 Bypass Se T Oe 7 EDI CD EM 7 Energy Saving Features 7 OCCUPANCY 5 Deuce adea a 8 Operating 9 hee 9 pp 10 Controller Performance 11 eroe M 12 II
45. NORMAL terminates PRESSURIZE or EMERG DEPRESSURIZE and restores the control algorithm EMERG PRESSURIZE heat cool outputs off EMERG DEPRESSURIZE heat cool outputs closed X This is used by the engineering tool or other supervisory node that it is logged on to the controller node It should be set every minute or the controller will reset it after 60s to automatically log off the supervisory node to be bound to nviManCool that would take over the task of the local slave control algorithm while the switch levels operate as locally configured The heating output will be closed X X X X X This can be used for master slave installations where the heat output is controlled by an external controller node In this case the output signal of the external heat control algorithm 0 10090 has to be bound to nviManHeat that would take over the task of the local slave control algorithm while the switch levels operate as locally configured The cooling output will be closed This is an input from an network connected operator interface or other node that indicates the state of manual occupancy control schedule override It has priority over the time program DestSchedOcc When the BYPASS mode is set then the Bypass time is active When the bypass time is elapsed the master controller automatically sets nviManOccCmd to nviManOccCmd does not provide a failure detect mechanism in case no periodic update is received
46. QUEST Bit ENABLED DISABLED Bit COMMUNICATION OK COMMUNICATION FAILURE Bit NO ALARM IN ALARM Bit NO REPORT MASK REPORT MASK Default OC NUL at application restart INVALID at application restart continued EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT ET Comments This is an output showing the state of the hard wired occupancy sensor if one is configured by nciHydConfig DI1 config NUL means no input is available because it is not bound not configured by nciHydConfig DI1 config This is the sensed space temperature at the node taken from the locally wired sensor It is typically bound to nviSpaceTemp of another node that may not have its own space temperature sensor but controls the same space It is also used for monitoring purposes showing the current space temperature used for the control algorithm nvoSpaceTemp is transmitted immediately when its value has changed significantly gt 0 5 The reported space temperature includes the offset correction nciWallMod si space temp zero cal If a space temperature sensor is not connected or is shorted or if nviSpaceTemp is bound to another node nvoSpaceTemp is not reported on the network This output belongs to the Node Object and reports the status for any objec
47. S NETWORK Fig 1 Typical system overview 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Products Covered This System Engineering Guide describes how to apply the Excel 10 Hydronic Controller and the accessories to typical Hydronic applications The specific devices covered include W7762A B Hydronic Controllers T7460 Wall Modules T7560 Wall Modules T7770 Wall Modules Q7750A Excel 10 Zone Manager Q7751A Bus Router US part number US only Q7752A Serial Adapter US part number US only Organization of Manual The Introduction and Application Steps 1 through 5 provide the information needed to make accurate ordering decisions Application Step 6 and the Appendices include configuration engineering that can be started using E Vision software after the devices and accessories are ordered Application Step 7 is troubleshooting Information provided in support of the use of third party E bus communication packages to configure Hydronic Controllers is found in the Appendices The organization of the manual assumes a project is being engineered from start to finish If you are adding to or changing an existing system the Table of Contents can guide you to the relevant information Applicable Literature The following is a list of documents that contains information related to the Excel 10 Hydronic Controller and the EXCEL 5000 System in general Form No Title 74 2934 Excel 10 W7762A
48. S for monitoring status of the Excel 10 Hydronic Controller Standby Unoccupied SrcOccOvrdHwS This signal contains the state of the remote Unoccupied XBS for monitoring override button Bypass and tenant logging Not Assigned SrcHydModeS Indicates the current Control mode of the Excel 10 possible values XBS for monitoring 10 Hydronic Controller See Table 4 SrcAlarmNode Indicates latest alarm detected by the node 22 possible values XBS for monitoring if any and return to normal See Table 22 SrcTermLoad This indicates the current calculated terminal 160 to 160 percent XBS for monitoring cooling load as a percentage of what the unit is designed to handle Positive value indicates a cooling load Negative value indicates a heating load SrcRmTempSptEffS This indicates the current temperature control 50 to 95 F 10 to XBS for monitoring point calculated from the various Setpoints and 35 C Operating modes NOTE E Vision handles the mapping process for C Bus accessible Excel 10 points If custom mapping arrangements are required see Appendix D for a complete listing of the Excel 10 Hydronic Controller User Addresses Table 21 Mapping of source points elsewhere on E Bus or C Bus to Excel 10 Hydronic Controller receiver points Typical source non Excel 10 Typical destination Controller Excel 10 Hydronic variable name Description Allowable values Controller name OccSignal Signal containing TOD S
49. T COMFAIL ODTEMP COMFAIL OCCSENSOR COMFAIL WINDOW SrcAlarmStatus3 nvoAlarmStatus error bit 2 UBYTE Bit coded Alarm COMFAIL MANHEAT COMFAIL MANCOOL ALM HW SW MISMATCH SrcHvacMode nvoApplicMode SNVT hvac mode HVAC OFF HVAC AUTO at application restart HVAC HEAT HVAC COOL HVAC OFF SrcCoolPos nvoCoolOutput SNVT lev percent 0 to 100 163 835 INVALID SrcStateDI1 nvoDigitInState SNVT_switch value 0 to 100 nvoDigitInState SNVT_switch state OFF ON NOT_ASSIGNED SrcOccEff nvoEffectOcc SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_BYPASS OC_STANDBY 74 2935 3r0909 56 continued EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT E E Comments A central node may poll the nvoAlarmLog output for a short history of alarms It contains the last five alarms reported via nvoAlarm At the time a new nvoAlarm is issued nvoAlarmLog is updated See above See above See above See above nvoAlarmLog alarm type 4 is the oldest alarm This is a polled output containing a list of all the current errors detected by the node A search for error conditions in the node is made periodically A central node may poll the nvoAlarmStatus output for all of the current errors nvoAlarmStatus contains all the current detected errors even though they
50. TL DE PRESSURIZE disable the heat cool outputs CTL MODE MANUAL allows turning on and off outputs manually through nviTest CTL MODE FACTORY TEST is intended only for the factory CTL FLOATING OUT SYNCH allows enough time 15096 valve run time for the valve s are at their initial positions control algorithms are active The controller then goes into one of the normal operating modes such as COOL When the effective occupancy changes to unoccupied 24 hours have elapsed since the last start up or CTL FLOATING OUT SYNCH mode the controller enters this mode again to reset the floating output position tracking CTL START UP WAIT is the first mode after an application restart No control algorithms are active and heat cool outputs stay in their default positions CTL FLOATING OUT SYNCH follows CTL DISABLED disables heat cool control es es ee F This is the latest alarm detected by the node if any and has the same value as nvoAlarm type RETH This indicates the state of the demand limit control X X X This indicates the real status of the window detection either from the digital input or from the network Lu ed This indicates the status of the digital input configured as window detection This indicates the position of the output 1 X This indicates the position of the output 2 modes and optimum start up gradients This reports the current space temperature used for the control algorithm This shows the curre
51. The available options for input configurations with the default values shown are listed in Table 14 Setpoint knob settings may apply to the built in setpoint knob W77624A only or remote wall module for W7762B controllers See Control Provided and Configurations sections above for more information on parameters Table 14 Hydronic Controller input configuration options Configuration options Defaut Space temperature sensor no sensor sensor sensor Bypass button none bypass button is disabled bypass unoccupied bypass unoccupied bypass button overrides current mode to occupied for configurable bypass time for button press of 1 1 to 4 seconds single press with T7560 or permanently overrides to unoccupied for button press of 4 1 to 7 seconds more than 5 seconds with T7560 bypass bypass button only overrides current mode to occupied and to cancel the override again LED LCD LED override shows override from bypass button or from network LED override LED occupancy shows effective occupancy mode LCD display only used with T7560 Wall Modules occupancy mode is represented by different symbols Setpoint knob no knob relative relative absolute middle Minimum limit setpoint pot limit for setpoint knob in either degrees F absolute setpoint 53 6 to 9 DDF 53 6 F for 86 F or DDF relative setpoint 9 to 9 DDF absolute setpoint limit for setpoint knob in either degrees C absolute setpoint 12 to 5 K 12 C for 30
52. This is an input that is used to disable the controller s control algorithms in order to manually set its physical outputs The controller still responds to smoke purge even when disabled or set to manual X X This can be used for master slave installations where the cool output is controlled by an external controller node In this case the output signal of the external cool control algorithm 0 100 has or factory test mode It remains unchanged until another mode has been commanded or an application restart has been performed MODE ENABLE starts the control algorithm at an initial state after MODE DISABLE or MODE MANUAL MODE DISABLE all outputs switched off the alarm ALARM NODE OFF is issued e MODE MANUAL all control loops are disabled and the alarm ALARM NODE OFF is issued The outputs can be controlled manually via the nviTest command SUPPRESS ALARMS nvoAlarm is not sent and nvoAlarmStatus and nvoAlarmLog are not updated until UNSUPPRESS ALARMS is set or an application restart UNSUPPRESS ALARMS releases alarm suppression after SUPPRESS ALARMS continued 49 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Table C3 Input Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value Default DestRequestObjld nviRequest object id SNVT obj request UWORD OzNode Object 1 Fan Coil Object n
53. _SCHEDOCC ALM_COMFAIL_DLC ALM_COMFAIL_TEMPRESET ALM_COMFAIL_ODTEMP ALM_COMFAIL_OCCSENSOR ALM_COMFAIL_WINDOW ALM_COMFAIL_MANHEAT ALM_COMFAIL_MANCOOL ALM_HW_SW_MISMATCH RETURN_TO_NORMAL RTN_NODE_OFF RTN_FROST RTN_INVALID_SETPNT RTN_TEMP_SENSOR_FAIL RTN_SETPNT_KNOB_ FAIL RTN_FAN_SPEED_SW_FAIL RTN_FAN_FAILURE RTN_COMFAIL_SPACETEMP RTN_COMFAIL_HVACMODE RTN_COMFAIL_SETPTOFFS RTN_COMFAIL_SCHEDOCC RTN_COMFAIL_DLC RTN_COMFAIL_TEMPRESET RTN_COMFAIL_ODTEMP RTN_COMFAIL_OCCSENSOR RTN_COMFAIL_WINDOW RTN_COMFAIL_MANHEAT RTN_COMFAIL_MANCOOL RTN_HW_SW_MISMATCH ALARM_NOTIFY_DISABLED continued 74 2935 3r0909 54 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments This is an output showing the active setpoint of the control algorithm It is based on the occupancy setpoints the offset and recovery ramping The subnet is the LONWORKS subnet number in domain entry 1 of the node s domain table The node is the LONWORKS node number in domain entry 1 of the node s domain table This is an output reporting the latest changed error condition detected in the node The first 5 bits are used for the alarm type number and this number is added to RETURN TO NORMAL 128 when the error condition is no longer true Each error condition return to normal is issued only once The type is also recorded
54. absolute and upper and lower limits can be set The bypass button can be configured to override the control mode to occupied for a configurable bypass time and to override the control mode indefinitely to unoccupied or it may be configured to only override to occupied The button may also be used to cancel the override Common Temperature Control Master Slave Controllers When one or more Hydronic Controllers serve a common area and a single temperature sensor is to be used a master slave arrangement can be configured One Excel 10 Hydronic Controller is configured for the local wall module with the desired options The other Excel 10 Hydronic Controller s will be configured without wall modules and with certain network variables bound with the master controller Refer to Appendix B of this document for more details IMPORTANT The slave units must have the same HVAC equipment connected to it as the master units The slave units will not use any internal temperature setpoints or control algorithms The master controller determines heating cooling output based upon setpoints and occupancy and command mode status and communicates this to the slave via the network See Appendix B Configuring for Master Slave Operation for more information 74 2935 3r0909 14 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Abbreviations and Definitions CARE Computer Aided Regulation Engineering the PC based tool used to configure C Bus
55. ancy continued 41 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers left Digital State or Value Default User Address Field Name nciHydConfig nciHydConfig nciHydConfig output mode 0 DI1 config nciHydConfig output mode 1 nciHydConfig output type 0 nciHydConfig output type 1 nciHydConfig valve reverse 0 nciHydConfig valve reverse 1 74 2935 3r0909 room temp sensor Engineering Units English Metric or States plus Range BYTE NO TEMP SENSOR NON LINEARIZED BYTE DI WINDOW CLOSED DI OCCUPIED SENSOR DI AIR FLOW DI CHANGEOVER COOL WINDOW OPEN DI UNOCCUPIED SENS DI NO AIR FLOW DI CHANGEOVER HEAT DI MOVEMENT DI NO MOVEMENT DI NOT USED BYTE OUTP COOLING OUTP HEATING OUTP CHANGEOVER OUTP NOT USED BYTE OUTP COOLING OUTP HEATING OUTP CHANGEOVER OUTP NOT USED BYTE FLOATING ONE STAGE TWO STAGE THREE STAGE PWM THERMAL FLOATING MID BYTE FLOATING ONE STAGE TWO STAGE THREE STAGE PWM THERMAL FLOATING MID Bit DIRECT REVERSE Bit DIRECT REVERSE 42 NOANDARWBNAO NTC_NON_LINEARIZED DI NOT USED OUTP HEATING OUTP COOLING 55 FLOATING FLOATING DIRECT DIRECT continued EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M
56. ardware configuration resistor value Compatibility is checked only once after application restart ALARM HARDWARE SOFTWARE NOT COMPATIBLE 74 2935 3r0909 32 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Broadcasting the Service Message The Service Message allows a device on the E Bus to be positively identified The Service Message contains the con troller Neuron ID number and can therefore be used to con firm the physical location of a particular Excel 10 Hydronic Controller in a building When an Assign Neuron ID command is issued from E Vision the node goes into the SERVICE MESSAGE mode for one minute In the SERVICE MESSAGE mode pressing the occupancy override button on the remote wall module causes the Service Message to be broadcast on the network other functions are normal in the SERVICE MESSAGE mode If a Hydronic Controller does not have a wall module with a bypass push button connected press the service button on the controller itself located as shown in the following figure SERVICE LED BUTTON Fig 19 Hydronic Controller LED and service button E Vision is used to perform the ID Assignment task during commissioning see E Vision User Guide Step 12 Commission Controllers W7762 Controller Status LED The LED at the top right of the controller provides an indication of device status The LED has the following states 1 Off no power to the processor 2 Continuous on
57. bsolute SptKnobHiLim nciWallMod si_high_setpt SNVT_temp_p K relative 5 to 5 K for relative 12 to 30 C for absolute nciWallMod si space temp zero cal SNVT temp p OK 5to5K i YES UseWallModSpt nciWallMod use_wall_mod_st_pt 0 1 SptKnob nciWallMod set_pnt_knob 2 Bits OFFSET OFFSET 0 ABSOLUTE_MIDDLE 2 0 1 2 0 1 nciWallMod override_type 2 Bits BYPASS_UNOCCUPIED NO_BUTTON BYPASS_UNOCCUPIED BYPASS nciWallMod override_priority Bit LAST_WINS LAST_WINS NETWORK_WINS LED_OVERRIDE nciWallMod display_type Bit LED_OVERRIDE LED_OCCUPANCY LCD_DISPLAY 74 2935 3r0909 46 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments This is the default setpoint for the occupied cooling setpoint that is used in case there is no locally wired setpoint knob or nviSetpoint has not been bound Where the ZEB for occupied is used this derives from the difference of occupied cool and occupied heat This is the configured setpoint that applies to the standby cooling mode Where the ZEB for standby is used it derives from the difference of standby cool and standby heat This is the configured setpoint that applies to the unoccupied cooling mode This is the default setpoint for the occupied heating setpoint that is used in case there is no locally wired setpoint knob or nviSetpoint
58. chedule mode command from Occupied DestSchedOcc the Excel 10 Zone Manager or a C Bus controller Unoccupied Standby HvacMode Signal from main equipment controller to command the Cooling DestHvacMode Excel 10 Hydronic Controller into a particular mode of Heating operation Auto Off DmndShed Signal containing the Shed mode command based on Shed not Active DestDlcShed electrical demand from the Excel 10 Zone Manager or Shed Active a C Bus controller When signal is TRUE the value in DIcStptBump is added to the Space Temperature Setpoint SetPtReset Amount in degrees to add to the temperature setpoint 5 to 5 F DestSptOffset reading for energy savings Typically sent from another 3 to 3 C controller doing EMS calculations 74 2935 3r0909 30 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Step 7 Troubleshooting Troubleshooting Excel 10 Hydronic Controllers and Wall Modules In addition to the following information refer to the various Checkout and Test manuals for these products See Applicable Literature section for form numbers Alarms When an Excel 10 Hydronic Controller has an alarm condition it reports it to the central node on the E Bus typically the Excel 10 Zone Manager via the variable nvoAlarm See Table 22 The information contained in nvoAlarm is e Subnet Number The E Bus subnet that contains the Excel 10 Hydronic Controller node that has the alarm condition Subnet 1 is
59. conds default from E Vision nciRcvHrtBt SNVT time sec 0 s from factory 300 s 0 to 6553 seconds default from E Vision 0 lt Disabled nciSndHrtBt i SNVT time sec 0 s from factory 300 s nciMaxSendTime 0 to 6553 seconds default from E Vision 0 lt Disabled 74 2935 3r0909 38 continued EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments ApplicationType identifies the current application number of the Excel 10 VersionNo identifies the version number of the Excel 10 application The time stamp of the last change to the Excel 10 application configuration Time meets the ANSI C time stamp requirement specifying the number of seconds elapsed since midnight 0 00 00 January 1 1970 It is represented in the Intel Format and is four bytes in length See above See above See above nciDeviceName contains the name of each device This is an ASCII string with the a size of 18 characters A name with all NULLs means that the device has not been configured This configuration property can be used to provide more descriptive physical loacation information than can be provided by the Neuron Chip s 6 byte location string This is the configuration property used to control the maximum time that expires before the node object automatically transmits nvoStatus This pro
60. control algorithm 35 Equipment Control Options Valve action and fan interlock settings must be the same as for the master controller Output staging hysteresis and minimum stage off times should be the same as in the master controller All heating and cooling stage switching levels should be identical to those of the master controller Zone Control Options All zone temperature control options including PID settings and miscellaneous settings are used only by the master controller and are ignored in the slave units Network Variable Binding In a master slave configuration the control algorithm is executed in the master controller only Heating and cooling output as calculated by the control algorithm is then sent via the network to the slave controllers The master controller output variables nvoHeatOutput user address SrcHeatPos and nvoCoolOutput user address SrcCoolPos must be bound using E Vision see E Vision User Guide to the slave input variables nviManHeat user address DestManHeat and nviManCool user address DestManCool respectively For a master slave system using heat cool changeover the master controller output variable nvoApplicMode user address SrcHvacMode must be bound to the slave controllers input variable nviApplicMode user address DestHvacMode The active wall module must be connected to the master controller 74 2935 3 0909 10 CONTROLLER SYSTEM ENGIN
61. d Override Standby or Occupied LED off gt No Override Four flashes per second Controller answers network management wink command LED Occupancy The wall module s LED shows the effective occupancy mode LED on Effective Occupied or Bypass One flash per second Effective Standby LED off Effective Unoccupied e Four flashes per second gt Controller answers network management wink command LCD Display This mode is only used for T7560 Wall Modules The occupancy mode is represented by the following symbols 296 Effective Occupied or Bypass K Effective Standby Effective Unoccupied OF F Controller is off OFF and Controller is off frost protection is enabled Flashing symbols represent the Override mode Override Occupied or Bypass Override Standby Override Unoccupied Controller answers the network management wink command Energy Saving Features Standby Mode The digital input for an occupancy sensor usually a motion detector provides the controller with a means to enter an energy saving Standby mode whenever there are no people in the room Standby mode occurs when the scheduled occupancy is Occupied and the occupancy sensor indicates no people currently in the room If no occupancy sensor is connected directly to the controller an occupancy sensor from another node may be bound to the network input DestOccSensor The controller can also be put in Standby
62. e 3 3 8 86 Honeywell 1 13 16 46 ud e 4 9 16 116 y Fig 6 W7762 construction in inches mm 74 2935 3r0909 10 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Controller Performance Specifications Power Supply 24 Vac 20 50 60 Hz Operating Temperature 32 to 122 F 0 to 50 Shipping Storage Temperature 40 to 158 F 40 to 70 C Relative Humidity 596 to 9590 non condensing Inputs Temperature Sensor 20k ohm NTC Setpoint Potentiometer 10k ohm Digital Input Closed lt 400 ohms 1 5 mA Open 2 10k ohms 4 8 V Outputs Triac voltage range 24 Vac 2090 maximum current ratings 250 mA continuous 650 mA surge for 30 sec IMPORTANT When any device is energized by a Triac the device must be able to sink a minimum of 15 mA If non Honeywell motors actuators or transducers are to be used with Excel 10 Hydronic Controllers com patibility must be verified Interoperability The W7762 Controllers use the Echelon Bus E Bus LonTalk protocol They support the LoNMARK Functional Profile 8020 Fan Coil Unit Controller version 2 0 Fig 7 shows the implementation used 11 Hardware Output Fan Coil Unit Controller Object 8020 nviSpaceTemp SNVT temp p nvoHeatOutput SNVT lev percent Mandatory iSeiPoini Network nvoCoolOutput nvisetPoin SNVT 1 t SNVT temp p Variables lev percen nvoFanSp
63. e fan feedback input does not detect airflow ALARM FD SPACE TEMP nviSpaceTemp is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD APPL MODE nviApplicMode is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD SETPT OFFSET 10 nviSetPtOffset is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD TOD EVENT 11 nviTodEvent is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD DLC SHED 12 nviDIlcShed is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD TEMP RESET 13 nviTempReset is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD OD TEMP 14 nviOdTemp is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD SENSOR OCC 15 nviSensorOcc is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD WINDOW nviWindow is bound and has failed in receiving an update within its specified FAILURE DETECT TIME ALARM FD MAN HEAT nviManHeat is bound and has failed in receiving an update within its ALARM FD MAN COOL specified FAILURE DETECT TIME nviManCool is bound and has failed in receiving an update within its specified FAILURE DETECT TIME The software is not compatible with the hardware configuration specified by the h
64. e for either wall mounting or unit mounting Heating systems can be water or electric and cooling systems can be chilled water supply or compressors Extensive timing and interlock features make the W7762 especially suitable for systems using electric heat and compressors The W7762 Controllers are capable of stand alone operation however optimum functional benefits are achieved when the network communication capabilities are used Q7752A E BUS SERIAL ADAPTER EXCEL 10 7750 PERSONAL COMPUTER TOOLS ZONE MANAGER E VISION E BUS COMMUNICATIONS NETWORK CONTROLLER Q7751A E BUS ROUTER EXCEL 10 HYDRONIC The zone controlled by the W7762 Controllers will typically use an Excel 10 wall module with a temperature sensor for space temperature measurement analog setpoint input bypass digital input push button and override status LED See page 4 for form numbers of Excel 10 wall module literature for further information The Q7750A Excel 10 Zone Manager is a communications interface that allows devices on the Excel 10 Echelon LoNWoRks network E Bus to communicate with devices on the EXCEL 5000 System C Bus Fig 1 shows an overview of a typical system layout The Q7750A also provides some control and monitoring functions C BUS COMMUNICATION NETWORK E EXCEL BUILDING SUPERVISOR EXCEL 500 C BUS TO E BUS INTERFACE DEVICE E BUS COMMUNICATION
65. eed SNVT switch nvoTerminalLoad SNVT_lev_percent nvoLoadAbs N SNVT power nviFanSpeedCmd SNVT switch nviOccCmd occupancy Optional nvoDischAirTemp nviApplicMode Network DR SNVT temp p SNVT hvac mode Variables AN CE nvoReheat SNVT switch nvoSpaceTemp SNVT temp p nvoEffectSetPt SNVT temp p nvoEffectOcc SNVT occupancy nvoEnergyHoldOff SNVT switch nvoUnitStatus SNVT_hvac_status Configuration Properties nviSetPtOffset SNVT_temp_p nviWaterTemp N SNVT temp p nviDischAirTemp AN SNVT_temp_p nviEnergyHoldOff SNVT_switch nc49 nciSndHrtBt SNVT_time_sec mandatory VAN nc52 nciMinOutTm SNVT_time_sec optional nc48 nciRcvHrtBt SNVT time sec optional nc17 nciLocation str asc optional nc60 nciSetPnts SNVT temp setpt mandatory nc59 nciNumValve SNVT count optional nviSensorOcc Manufacturer nvoSensorOcc SNVT Occupancy Defined SNVT occupancy Section nviEmerg SNVT hvac emerg nviReheatRelay SNVT switch nvoDigitInState SNVT switch Hardware Input A NOT SUPPORTED Fig 7 LONMARK Fan Coil Unit object profile 74 2935 3 0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Configurations General The following sections provide an overview of the Excel 10 Hydronic Controller options related to inputs and outputs See Application Step 6 Configure Controllers for complete list of configuration options and defaults Table 6 Hardware options
66. el 10 Hydronic Controller products Device Table 5 Agency listings Comments Agency W7762 Hydronic Controller CE General Immunity per European Consortium standards EN50081 1 CISPR 22 Class B and EN 50082 1 1992 based on Residential Commercial and Light Industrial EN 61000 4 2 IEC 1000 4 2 IEC 801 2 Electromagnetic Discharge EN 50140 EN 50204 IEC 1000 4 3 IEC 801 3 Radiated Electromagnetic Field EN 61000 4 4 IEC 1000 4 4 IEC 801 4 Electrical Fast Transient Burst Radiated Emissions and Conducted Emissions EN 55022 1987 Class B CISPR 22 1985 FCC Complies with requirements in FCC Part 15 rules for a Class B Computing Device 9 74 2935 3 0909 10 CONTROLLER SYSTEM ENGINEERING The Excel 10 W7762 Hydronic Controller is available in two All wiring connections to the controllers are made at screw basic models The W77624A has a built in setpoint adjustment terminal blocks accessible beneath a plastic safety cover knob available in relative or degrees C absolute scales The Mounting dimensions are shown in Fig 6 W7762B has no built in setpoint adjustment and as such requires either a setpoint input from a direct connected wall module or from the E Bus network All of the controllers are AN CAUTION powered by 24 Vac Turn off power prior to connecting to or removing connections from any terminals to avoid electrical shock or equipment damag
67. ermine the required transformer size for proper operation A power budget is simply the summing of the maximum power draw ratings in VA of all the devices to be controlled by an Excel 10 W7762 Controller This includes the controller itself the equipment and various contactors and transducers as appropriate for the Excel 10 configuration Power Budget Calculation Example The following is an example power budget calculation for a typical W7762 Excel 10 Hydronic Controller Assume a W7762 unit with a thermal actuator for cooling control and an electric actuator for heating The power requirements are Device VA Excel 10 W7762 0 5 Hydronic Controller Information obtained from W7762 Specification Data 2100 12 0 Thermal actuator Product Data M7410A 0 7 Electric Actuator TOTAL 13 2 VA Product Data The Excel 10 System example requires 13 2 VA of peak power therefore a 48 VA CRT 2 20 VA AT20A for US Transformer is able to provide ample power for this controller and its accessories Table 9 VA Ratings For Transformer Sizing Device Description VA W7762A B Excel 10 Hydronic Controller 0 5 T7560A DWM 0 2 Z100A Thermal actuator 12 0 M7410A Electric actuator 0 7 For contactors and similar devices the in rush power ratings should be used as the worst case values when performing power budget calculations Also the application engineer must consider the possible combinations of simultane
68. figured to allow it and e T7460 and T7770 The bypass button is pressed for four to Seven seconds until the LED blinks T7560 The bypass button is pressed for more than five seconds until flashing moon appears This mode can also be entered via a network command DestManOcc set to OC UNOCCUPIED The controller uses the Unoccupied setpoints The controller remains in this mode indefinitely or until the bypass button is pressed to exit the mode or a network command is sent to clear the mode Bypass Push Button The Hydronic Controller may have an Excel 10 wall module with bypass push button connected to it There are three ways to configure the bypass push button see Table 14 for further information NONE BYPASS UNOCCUPIED BYPASS ONLY Override Priority The Hydronic controller can be configured to arbitrate overrides coming from the Wall Module and the network There are two possible states that have the following meanings LAST WINS Specifies that the last command received from either the wall module or DestManOcc determines the effective override state NETWORK WINS Specifies that when DestManOcc is not OC NUL then the effective occupancy is DestManOcc regardless of the wall module override state LED LCD LED Override The wall module s LED shows the override from the bypass button or from the network LED on Override Bypass One flash per second Override Unoccupied Two flashes per secon
69. from the master con troller via network variables sent across the E Bus There can be a maximum of one wall module active in the room and it must be wired directly to the master controller If a slave controller has a wall module connected to it the wall module will be ignored Configuration of the master controller is the same as for any controller operating alone in a room Configuration of the slave controllers must follow the rules described in this section The following sections correspond to the screens in E Vision used for configuring Hydronic controllers An additional section discusses binding of network variables to support master slave configurations Output Configuration Options Slave devices must have their outputs configured identically with the master controller The same system type and actuator types must be used Valve run times cycle times and PWM zero and full position configuration options must be the same as well Input Configuration Options Slave controllers may have wall modules connected to them but they must be deactivated while the controllers are operating as slave units They must be configured for no temperature sensor The digital input may be used on the slave units for window open closed or airflow fan fail detection and must be configured as such In the case of window sensing the window status network variable must be mapped to the master controller as the slave controller does not execute the
70. ia the B Port of an Excel 10 Zone Manager perform the following procedure 1 Select a controller symbol from a network diagram 2 Click on Calibrate from the Controller menu Once E Vision logs on to the controller the Room Temperature Calibration dialog box appears 3 The box displays the Current Value of the sensor and the current Offset it also contains a field for entering 74 2935 3r0909 34 the actual Measured Value When a value is typed in and Calibrate is clicked the offset value is automatically calculated displayed and written to the Excel 10 Hydronic Controller Room Temperature Calibration XL10 HYD2 Calibrated Calculated Manually Active Offset Measured Sensor Value Drac fera CC Enter Reference Value and press Calibrate Fig 20 Calibration dialog box NOTE Record the offset value to be manually restored if additional downloads are performed 4 Click on Close after completing adjustments EXCEL 10 CONTROLLER SYSTEM ENGINEERING APPENDIX B CONFIGURING FOR MASTER SLAVE OPERATION More than one W7762 Hydronic Controller may be used to control the temperature of a room In this situation one con troller must be identified as the master unit that will perform the temperature control algorithm The other Hydronic con trollers in the room are designated as slave units and their control algorithms are disabled The slave units receive heating and cooling output information
71. iables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value NEN nciApplVer not notused UBYTE nciCntriSettings fan auto mode CONTINUOUS NENNEN MODE AUTO MODE nciCntriSettings fan run up time SNVT time sec 0 to 600 seconds nciCntriSettings fan overrun time SNVT time sec 0 to 600 seconds nciCntriSettings reheat switch level SNVT lev percent 10096 0 to 100 nciCntriSettings reheat hysteresis SNVT lev percent 596 0 to 100 0 nciCntriSettings fan min on time SNVT time sec 0 to 1200 seconds nciCntriSettings fan min off time SNVT time sec to 1200 seconds neCntiSetings reseve 7bts bits nciHydConfig fan speed switch BYTE NO SWITCH nciHydConfig fan config BYTE NO FAN NO FAN nciHydConfig fan interlock 0 i 0 1 nciHydConfig fan interlock 1 i 0 1 nciHydConfig reheat config BYTE REL NOT USED REHEAT 0 FREE USE 1 REL NOT USED 255 mmus mm CL mmc mmc semen _ m AN value SNVT switch 0 to 100 nviFanSpeedCmd SNVT switch OFF 0 ON 1 NUL 255 nviReheatRelay value SNVT switch 0 to 100 continued 74 2935 3r0909 68 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C5 Unused Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT
72. ion in the Project Defaults Screen NOTE To the following configuration parameters use the E Vision PC tool These sections describe the various parameters and the allowable settings For details on using E Vision refer to the E Vision User Guide EXCEL 10 CONTROLLER SYSTEM ENGINEERING Outputs The available options for output configurations with the default values shown are listed in Table 13 See Configurations section above for more information about parameters Table 13 Hydronic Controller output configuration options Function Configuration options Default System type two pipe 1 valve four pipe four pipe 2 valves Output1 triac 1 and 2 control not used heating cooling heating heat cool changeover Output 1 triac 1 and 2 type floating floating floating mid 1 stage 2 stage 3 stage PWM thermal Output 2 triac 3 and 4 control not used cooling cooling heating heat cool changeover Output 2 triac 3 and 4 type floating floating floating mid 1 stage 2 stage 3 stage PWM thermal NOTES 1 The output mode settings only apply to a 4 pipe system In a 2 pipe system output1 will always operate in changeover mode 2 The floating mid option is only for changeover applications and uses only one of the two outputs The operation of the triacs based upon the output type is given in Table 11 25 74 2935 3r0909 EXCEL 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Inputs
73. l Excel 10 points mappable and calibration configuration and internal data sharing points can be viewed and changed as allowed via Direct Access DA mode in the XBS subsystem menu or via 584 The tables are divided as follows Table C2 Configuration variables Table C3 Input variables Table C4 Output variables Table C5 Unused variables NOTE Table C5 includes network variables related to fan control and reheat The W7762 Hydronic Controller does not have outputs for direct connection of these devices however the network inputs and outputs could be used for a master slave configuration with a slave controller that does have such outputs e g W7752D Such a configuration is not recommended For more information about these network variables see form number 74 2961 W7752 Fan Coil Unit System Engineering 74 2935 3r0909 36 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value ApplType nciApplVer application type UBYTE 0 to 255 fo ApplVer nciApplVer version_no UBYTE 0 to 255 UBYTE 0 to 255 ud ApplTime1 nciApplVer time 1 UBYTE 0 to 255 ApplTime2 nciApplVer time 2 UBYTE 0 to 255 O ApplTime3 nciApplVer time 3 UBYTE 0 to 255 fo nciLocation SNVT_str_asc SNVT_temp_p 0 s from factory 60 s 0 to 6553 se
74. l application WINDOW CONTACT WALL MODULE WITH TEMP SENSOR E BUS E BUS Fig 2 Typical W7762 Hydronic control application Control Provided The W7762 Hydronic Controllers provide room temperature control for two and four pipe fan coil units The basic control sequence is shown in Fig 3 As space temperature falls below the heating setpoint the heating output is increased As space temperature increases above the cooling setpoint the cooling output is modulated to 10096 Switching levels for staged heating cooling are configurable W7762 Hydronic controllers use a PID control algorithm where each of the three parameters can be configured There are additional configurable boost parameters HeatBoost and CoolBoost that specify a range outside of which the heating or cooling outputs are turned on fully for faster response for thermal actuators this specifies the control hysteresis The controllers are delivered with factory defaults for each of the parameters ZERO ENERGY BAND 100 HEATING DEMAND CONTROL OUTPUT HEATING SETPOINT HEATING PROPORTIONAL COOLING DEMAND E COOLING SETPOINT ROOM TEMPERATURE gt COOLING PROPORTIONAL Fig 3 Control sequence diagram 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Setpoints Setpoint Knob W7762A Hydronic controllers have a built in setpoin
75. lev_percent 0 to 100 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C5 Unused Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT 73 74 2935 3r0909 EXCEL 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING APPENDIX D Q7750A EXCEL 10 ZONE MANAGER POINT ESTIMATING GUIDE Memory size approximation is shown in Fig 21 All sizes in bytes When memory size is less than 110 Kbytes the size is adequate When memory size is between 110 and 128 Kbytes the application may be too large The user must expect to reduce the application complexity reduce the number of attached Excel 10 Hydronic Controllers or distribute the Excel 10 Hydronic Controllers among more than one Zone Manager When memory size is greater than 128 Kbytes the size is too large The application size must be reduced as described above Approximate Memory Size Estimating Procedure 1 Determine the number of points per controller required at the Central for example XBS NOTE All remaining points that are not mapped are available for accessing through the Direct Access feature A NO TIME PROGRAM NO CONTROL LOOPS 920 NO SWITCHING TABLES 900 B 10K CONTROL PROGRAM FOR EXAMPLE 1 TIME PROGRAM 2 Calculate the number of Excel 10 Zone Manager program points that will be used in the control logic and in the switching table 3 Estimate the program comp
76. lexity of the Zone Manager one of three levels a No time programs control logic or switching tables b 10 Kbytes of control logic one time program five switching tables and five control loops c 20 Kbytes of control logic multiple time programs ten switching tables and ten control loops Use Fig 21 to determine the number of Excel 10 Controllers that can be connected to the Zone Manager NOTE Where the number of Excel 10 Controllers exceeds 60 a router is required 4 Repeat the calculation for each Q7750A Excel 10 Zone Manager in the project 900 895 800 5 CONTROL LOOPS 5 SWITCHING TABLES NUMBEROF 765 C BUS POINTS EXCEL 10 MAPPED POINTS PLUS ZONE MANAGER POINTS C 20K CONTROL PROGRAM MULTIPLE TIME PROGRAMS 10 CONTROL LOOPS 10 SWITCHING TABLES 800 NUMBER OF C BUS POINTS EXCEL 10 MAPPED POINTS PLUS ZONE MANAGER POINTS 20 60 OR LESS NUMBER OF EXCEL 105 ADD ROUTER M8729 Fig 21 Point capacity estimate for Zone Manager The exact equation to use to calculate memory size is Memory size 21 780 byte 4096 byte in case of a time program CARE Control Program 14 byte x time points x Excel 10 Controllers 50 byte x Excel 10 Controllers map complexity x Excel 10 Controllers x mapped points 57 byte x C Bus points 7488 byte x Excel 10 Controller types Where time points number of switch points in time program per
77. ling setpoint above which the cooling output is fully open to allow a faster response For thermal actuators it is the hysteresis for thermal control algorithm This is the temperature range to be subtracted from the heating setpoint below which the heating output is fully open to allow a faster response For thermal actuators it is the hysteresis for thermal control algorithm This is the configuration property used to specify a two pipe system one valve or a four pipe system two valves If set to TWO PIPE only the output terminals for output1 are used If set to FOUR PIPE output1 and output2 are defined by nciHydConfig output mode continued 45 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value Default SptCoolOcc nciSetPnts occupied cool SNVT temp p C 10 to 35 C 23 SptCoolStby nciSetPnts pee al cool SNVT_temp_p 25 C 10 to 35 C 10 to 35 C SptHeatOcc nciSetPnts occupied_heat SNVT_temp_p 10 to 35 C SptHeatStby nciSetPnts standby_heat SNVT_temp_p 19 C 10 to 35 C SptHeatUnocc nciSetPnts unoccupied_heat SNVT_temp_p 16 C 10 to 35 C BypTime nciWallMod ui_bypass_time UWORD 180 min 0 to 1080 minutes SptKnobLowLim nciWallMod si_low_setpt SNVT_temp_p 5 K relative 5 to 5 K for relative 12 to 30 C for a
78. n Digital Input There is a single digital input to the W7762 Controller that may be configured to accommodate an occupancy sensor a window open closed contact an airflow detector for fan failure detection not available through E Vision or a changeover input It is possible to configure the input for either normally open or normally closed contacts for any of the switches Choose the option that corresponds to the condition of a closed contact input high The control algorithm in the Hydronic Controller uses the Occupancy Sensor if configured to determine the Effective Occupancy mode of operation see Table 3 If the Time Of Day TOD schedule indicates an Occupied state and the Occupancy Sensor contact is closed the Effective Occupancy mode will be Occupied However if the TOD schedule indicates an Occupied state and the Occupancy Sensor contact is open then the Effective Occupancy mode will be Standby The flow control algorithm will then control to the Standby Cooling and Heating Setpoints Configuring the digital input for movement or no movement dependent upon normally open or normally closed contacts adds a delay of 15 minutes to the occupancy sensor such that the space is considered occupied until 15 minutes has elapsed since the last movement is detected If the digital input is configured as a window open closed contact heating and cooling control will be disabled while the window is detected open Frost protecti
79. n Bit NOT_PRESSED 0 PRESSED 1 nvoSensor raw data 0 UWORD 0 to 65535 for Space Temp nvoSensor raw data 2 UWORD 0 to 65535 for Setpoint Knob SrcRmTempSptHw nvoSensor remote set point SNVT temp p 5 to 5 K for relative 12 to 30 C for absolute SrcRmTempHw nvoSensor space temp SNVT temp p 0 to 40 C 327 67 C for INVALID nvoSensor ub_hard_config BYTE INITIAL INITIAL at application W7762A restart W7762B INVALID continued nvoSensor contact state DI1 Bit CONTACT OPEN 0 CONTACT CLOSED 1 74 2935 3r0909 62 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments Same as nvoHydStatus except not sent as heartbeat This variable is sent only in response to a poll request typically from a supervisory device Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus Same as nvoHydStatus This is the heating output that is typically used for monitoring or bound to a heat actuator node or another Excel 10 controller operating as slave nvoHeatOutput will be transmitted immedia
80. ne generated after pressing the service button which is available on Excel 10 Hydronic Controllers via the wall module bypass push button E Vision uses this message to assign the node address The Assign ID procedure is the same as for an Excel 10 Hydronic Controller except instead of pressing the bypass button the reset button must be pressed or the power must be cycled down then up on the Q7750A Excel 10 Zone Manager Excel 10 Hydronic Controller Point Mapping In typical Excel 10 Hydronic Systems there are often variables that contain values or information that must be shared with devices on the C Bus E Vision is used to perform these operations through the Point Mapping function Mapped points are available to the C Bus Table 20 lists Hydronic Controller source variables for mapping and Table 21 lists variables from other sources that may be mapped to Hydronic Controller input variables See Appendix D for a complete list of all Excel 10 Hydronic Controller User Addresses 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table 20 List of Excel 10 Hydronic Controller source variables for mapping Hydronic Controller source points with receivers elsewhere on E Bus or C Bus Source Excel 10 Hydronic Controller Description variable name including receiver information Allowable values Typical destination SrcOccEff This signal contains the effective occupancy Occupied XB
81. nt value in minutes of the active bypass timer This reports the current temperature control point calculated from the various setpoints operating continued 61 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value Default motyastatusP hw_overiae Semeasmonvesiaus M _ sched ocr M _ SeOSemop etseno SeOccoweweP net mano Sameasmvotyasious M _ nvotyastatus Semeasmvonesiaus _ Sreowarea votivasiews Sameasmvotyasious T same as vovas _ nvoHydStatusP alarm_type Same as nvoHydStatus estes _ Sewmdwp evotivaStawsP ott window open Same as mvoryasious f _ avohyaSiausP rw_window open Semeasnvotesiaus 111 SeouparP evotivasiewsP ouput posttonfo Same asmvotyasious f Seoupuus output Semeasmonyesiaus _ SrcHeatPos nvoHeatOutput SNVT_lev_percent 0 to 100 163 835 INVALID nvoSensor override_butto
82. ntroller If no ID has been assigned assign ID s and download the application to the controller s In both of these cases parameter changes Setpoints Temperature Sensor Calibration etc made with the other PC database are lost and have to be re entered ID Number Each Excel 10 Hydronic Controller is shipped with an internal Identification Number from the factory called the Neuron This ID number is a removable sticker on the side of the W7762 housing and is required for identifying the controller 29 on the E Bus network through E Vision The ID number can either be manually entered or it can be received from the network Pressing the bypass push button on the wall module when the Hydronic controller is in its Service Mode or pressing the service pin button on the controller itself causes it to broadcast a service message containing its Neuron ID number E Vision is used to perform both methods see E Vision User Guide Configuring the Zone Manager The Q7750A Excel 10 Zone Manager sends out a one time LoNWORKS message containing its 48 bit Neuron ID after any power up WARMSTART or when the Excel 10 Zone Manager is reset by pressing the reset button IMPORTANT Pressing the reset button on the Excel 10 Zone Manager causes all application files in the Q7750A including the C Bus setup to be lost The LonWorks message is sent out one time and only on the E Bus not on the B Port The message will be the same as the o
83. ollers in segment number one 60 nodes wall modules are not E Bus nodes Maximum number of Excel 10 Controllers in segment number two 60 nodes wall modules are not E Bus nodes Total 125 nodes The maximum length of an FTT E Bus segment is 4600 ft 1400 m for a daisy chain configuration or 1650 ft 500 m total wire length and 400 m node to node for any other type of configuration NOTE For FTT E Bus segments the distance from each transceiver to all other transceivers and to the termination must not exceed the maximum node to node distance If multiple paths exist the longest one should be used for the calculation If longer runs are required add a Q7751A Router to partition the system into two segments It is not legal to use more than one router per Excel 10 Zone Manager In addition all E Bus segments require the installation of a Bus Termination Module For an FTT E Bus segment one or two Termination Modules may be required depending upon the bus configuration See Application Step 3 Lay Out Communications and Power Wiring and the E Bus Termination Module subsection in Application Step 4 for more details Q7750A2xxx ZONE MANAGER Honeywell W7762 HYDRONIC CONTROLLER Step 3 Lay Out Communications and Power Wiring E Bus Layout The communications bus E Bus is a 78 kilobit serial link that uses transformer isolation and differential Manchester encoding Wire the E Bus using level IV
84. on the Zone Manager side of the router Subnet 2 is on the opposite side e Node Number The Excel 10 Hydronic Controller node that has the alarm condition Alarm Type The specific alarm being issued and return to normal An Excel 10 Hydronic Controller can provide the alarm types listed in Table 22 All current alarms are contained in a variable called nvoAlarmStatus User Addresses SrcAlarmStatus1 SrcAlarmStatus2 and SrcAlarmStatus3 that is composed of 31 three bytes nvoAlarmStatus alarm bit n with n 0 through 2 with a bit corresponding to each of the alarms listed in Table 22 The coding is ordered in that the least significant bit of nvoAlarmStatus alarm bit 0 corresponding to alarm type 1 the most significant bit corresponding to alarm type 8 the least significant bit of nvoAlarmStatus alarm bit 1 corresponding to alarm type 9 and so on Even alarms that are suppressed in nvoAlarm see below are contained in nvoAlarmStatus Also the Excel 10 Hydronic Controller variables nvoAlarmLog type n where n is 0 through 4 User Addresses SrcAlarmLog1 through SrcAlarmLog5 that store the last five alarms to occur in the controller are available These points can be viewed through XBS or E Vision Certain alarm conditions are suppressed conditionally as follows If an input network variable with failure detect is bound to the same node as nvoAlarm then nvoAlarm and nvoAlarmLog do not report the related Hydronic Cont
85. on will be in effect however and heating control will be enabled if the temperature drops below 46 F 8 C set of contacts may be wired in series for multiple windows If the digital input is configured for an airflow detector fan status heating and cooling control will be disabled for a fan failure no airflow detected This option is not available through E Vision The input may also be configured for changeover for a two pipe system The input can accommodate a switch that is closed for heating and open for cooling or open for heating and closed for cooling NOTE The Excel 10 Hydronic Controller has limited power available only 1 5 mA 4 8 V for checking the digital 13 input for contact closures Ensure that contacts used remain within the specified resistance tolerance range closed x 400 ohms even when aged 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Excel 10 Wall Module Options A typical Hydronic installation will include an Excel 10 wall module containing a 20k ohm NTC room temperature sensor and additional features depending on the wall module type see Excel 10 wall module literature for further information IMPORTANT Wall modules with fan speed switches must not be used with W7762 Hydronic Controllers The Hydronic Controller can be configured to use a return air sensor rather than the sensor in the wall module Setpoint adjustments can be configured as relative or
86. ously energized outputs and calculate the VA ratings accordingly The worst case which uses the largest possible VA load should be determined when sizing the transformer Line Loss Excel 10 Controllers must receive a minimum supply voltage of 20 Vac If long power or output wire runs are required a voltage drop due to Ohms Law I x R line loss must be considered This line loss can result in a significant increase in total power required and thereby affect transformer sizing The following example is an x R line loss calculation for a 200 ft 61m run from a transformer to a W7750 CVAHU Controller drawing 37 VA using two 18 AWG 1 0 mm wires The formula is Loss length of round trip wire run ft x resistance in wire ohms per ft x current in wire amperes From specification data 18 AWG twisted pair wire has 6 38 ohms per 1000 feet Loss 400 ft x 6 38 1000 ohms per ft x 37 VA 24V 4 0 volts This means that four volts are going to be lost between the transformer and the controller therefore to ensure that the controller receives at least 20 volts the transformer must output more than 24 volts Because all transformer output voltage levels depend on the size of the connected load a larger transformer outputs a higher voltage than a smaller one for a given load Fig 13 shows this voltage load dependence In the preceding x R loss example even though the con troller load is only 37 VA a standard 4
87. pair or Contacts shielded cable is recommended Output 14 AWG 2 5 Any pair non shielded use NEC Class 2 Honeywell US 200 ft 60m Wiring mm heavier wire for longer runs 140 F 60 C AK3702 18 AWG Actuators 18 AWG 1 0 rating AK3712 16 AWG Relays mm acceptable AK3754 14 AWG for short runs or equivalent Power 14 AWG Any pair non shielded use NEC Class 2 Honeywell US Limited by line loss Wiring 2 5 mm heavier wire for longer runs 140 F 60 C AK3754 14 AWG effects on power rating twisted pair consumption AK3909 14 AWG single See Line Loss conductor or equivalent subsection NOTE PVC wire must not be used where prohibited by local fire regulations W7762 Controller Fig 16 illustrates W7762 Controller terminal block assign ments and wiring for a sample Hydronic installation All connections are made at terminal blocks 1 2 IN 13 MM 1 STRIP 1 2 IN 13 MM FROM WIRES TO BE ATTACHED AT ONE TERMAINAL TURNS 2 TWIST WIRES TOGETHER WITH PLIERS A MINIMUM OF THREE Table 11 lists wiring information for wiring all of the possible actuator types 3 CUT TWISTED END OF WIRES TO 3 16 IN 5 MM BEFORE INSERTING INTO TERMINAL AND TIGHTENING SCREW THEN PULL ON EACH WIRE IN ALL TERMINALS TO CHECK FOR GOOD MECHANICAL CONNECTION Fig 15 Attaching two or more wires at terminal blocks 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING
88. pment Floating actuators requiring that the valve run time be specified during configuration of the controller can be used Valve action can be configured as either direct or reverse When in a two pipe system with a changeover input a floating actuator can be used that has the middle position 5096 as the zero energy position The cool range is then 0 to 5096 and the heat range 50 to 10096 The output must be configured as floating mid Multi stage systems can be controlled with up to three different stages of heating cooling control Switching levels are specified in of control level see Fig 8 as is a hysteresis setting that applies to all switching levels Heating and Cooling switching levels and hysteresis are specified separately Minimum off times can be configured and a minimum on time can also be configured PWM electronic valves and thermal actuators can also be connected and can be configured as either direct or reverse action The cycle time must be specified during configuration For PWM valves the zero and full positions must also be configured EXCEL 10 CONTROLLER SYSTEM ENGINEERING HEATING HYSTERESIS COOLING 10 STAGES lt gt STAGE 3 STAGE 2 STAGE 1 096 SWITCHING CONTROL SWITCHING LEVEL 1 DEMAND LEVEL 2 5 50 SWITCHING 100 LEVEL 3 7596 Fig 8 Three stage heating cooling switching defaults for switching levels and hysteresis show
89. purpose of this step is to assist the application engineer in developing job drawings to meet job specifications Wiring details for the W7762 Hydronic Controller are shown in Fig 16 Table 11 gives additional details for output connections NOTE For field wiring when two or more wires are to be attached to the same connector block terminal be sure to twist them together Deviation from this rule can result in improper electrical contact See Fig 15 Table 10 lists wiring types sizes and length restrictions for Excel 10 Hydronic Controller products EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table 10 Field wiring reference table US part numbers shown Recommended Specification Wire Minimum Wire or Maximum Length Function Size AWG mm Construction Requirement Vendor Wire Type ft m E Bus 22 ANG Twisted pair solid conductor Level IV 140 F Honeywell US See Step 2 Plenum non shielded 60 C rating AK3791 one twisted pair AK3792 two twisted pairs Europe Belden 9H2201504 E Bus 22 AWG Twisted pair solid conductor Level IV 140 F Honeywell US See Step 2 Non non shielded 60 C rating AK3781 one twisted pair plenum AK3782 two twisted pairs Europe Belden 9D220150 Input 14 to 20 AWG Multiconductor usually five 140 F 60 C Standard thermostat wire 82 5 ft 25m Wiring 2 0 to 0 5 mm wire cable bundle For runs rating Sensors gt 100 ft 30 m twisted
90. r User Address NvName Field Name States plus Range nvoHydStatus field_no UBYTE FIELD_EFFECT_OCC FIELD_HW_OVERRIDE FIELD SCHED OCC FIELD EFF OCC FIELD NET MAN OCC FIELD HW SEN OCC FIELD LED FIELD MODE FIELD ALARM TYPE FIELD SHED FIELD EFF WINDOW OPEN FIELD HW WINDOW OPEN FIELD FAN FEEDBACK FIELD EXTERNAL ACTIVE FIELD FAN STAGES ACTIVE FIELD OUTPUT POS 1 FIELD OUTPUT POS 2 FIELD REHEAT RELAY FIELD ACTIVE SET PT FIELD SPACE TEMP FIELD REST BYPASS TIME SrcOccEffS nvoHydStatus effect_occ SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_BYPASS OC_STANDBY SrcOccOvrdHwS nvoHydStatus hw_override SNVT_occupancy OC_UNOCCUPIED OC_BYPASS OC_NUL No Override SrcOccSchedS nvoHydStatus sched_occ SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_BYPASS OC_STANDBY OC_NUL No Override SrcOccSensorS nvoHydStatus eff_sen_occ SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_NUL No Override SrcOccOvrdNetS nvoHydStatus net_man_occ SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_BYPASS OC_STANDBY OC_NUL SrcOccSensorHwS nvoHydStatus hw_sen_occ SNVT_occupancy OC_OCCUPIED OC_UNOCCUPIED OC_NUL 74 2935 3r0909 58 Value LA LIA lll ll Co Default continued EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT
91. rform the optimum start strategy This is the time in minutes until the next change of scheduled occupancy state This time is updated by the Zone Manager once every 60 seconds This data is also used by the optimum start calculation see nciEnergyManag This allows a window contact node or another controller to be used as remote window contact More than one nvoWindow may be bound to one nviWindow which allows one node to be used to handle several distributed window contacts In this case the control process assumes an open window if at least one bound window node detects an open window Window Closed would be assumed if all nvoWindows bound to nviWindow indicate the window being closed for at least the failure detect time nciSndHrtBt See above 53 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left Digital Engineering Units State English Metric or User Address NvName Field Name States plus Range Default SrcRmTempSptEff nvoActiveSetPt SNVT temp p 10 to 35 C 327 67 INVALID SrcAlarmSubnet nvoAlarm subnet UBYTE 0 to 255 SrcAlarmNode nvoAlarm node UBYTE 0 to 255 nvoAlarm type UBYTE RETURN_TO_NORMAL ALM_NO_ALARM at application restart ALM_NODE_OFF ALM_FROST ALM_INVALID_SETPNT ALM_TEMP_SENSOR_FAIL ALM_SETPNT_KNOB_FAIL ALM_FAN_SPEED_SW_FAIL ALM_FAN_FAILURE ALM_COMFAIL_SPACETEMP ALM_COMFAIL_HVACMODE ALM_COMFAIL_SETPTOFFS ALM_COMFAIL
92. roller variable receive failure error and its associated return to normal Suppression occurs only when the nvoAlarm is bound to only one node using LONWORKS subnet node addressing and only after the input variable has actually received a network variable from the node since the latest application restart or power up condition 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table 22 Excel 10 Hydronic Controller alarms Name of alarm or alarm bit Alarm type Meaning of alarm code or alarm bit number No Alarm Return to Normal RETURN TO NORMAL Return to no error after being in an error condition This code is added numerically to another alarm code to indicate that the error condition has returned to normal ALARM NOTIFY DISABLED 255 The alarm reporting has been turned off by the nviManualMode SUPPRESS ALARMS No more alarms are reported until nviManualMode turns on alarm reporting or upon application restart NO ALARM EN No errors since last application restart initial condition Hydronic Alarms ALARM NODE OFF 1 Control algorithm has stopped due to controller disabled or in test mode or other conditions ALARM FROST 2 The space temperature is below the frost alarm limit The alarm condition remains until the temperature exceeds the alarm limit plus hysteresis One of the setpoints is not in the valid range Temperature sensor failed Remote setpoint potentiometer failed Th
93. ronic Controller information using the E Vision PC tool Details on the use of E Vision are found in the E Vision User Guide The E Vision User Guide provides detailed steps for defining the Excel 10 Zone Manager if required creating or starting an existing E Vision project creating or selecting an existing network building or modifying the network defining and copying controllers mapping points between controllers the Zone Manager and third party devices connecting to controllers for commissioning monitoring and uploading and various other functions This section will provide details on the configuration options found in E Vision for W7762 Controllers If another E Bus com munication tool is used for set up see Appendix C for reference information Using E Vision The configuration process is primarily performed in a series of Screens seen as file tabs under the menu option Application Selection and is easily followed using the tables included in this section There are 8 file tabs 74 2935 3r0909 24 Output Input Equipment Control Switching Levels Zone Options Miscellaneous PID Wiring information only no configuring The specific parameters to be configured in each of these four categories are tabulated in the following subsections For a complete list of all Excel 10 Hydronic Controller User Addresses see Appendix C The configuration of the setpoints as either absolute or relative is performed in E Vis
94. rt continued EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C3 Input Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT X X X X X This is an input that coordinates the controller operation with the main equipment controller Dependent on the supply energy available the main equipment controller commands the Hydronic controller to operate in heat mode only cool mode only or heat and cool mode if appropriate to the configuration HVAC_AUTO means that both heating and cooling equipment are available and the current mode is determined by the control algorithm depending upon the room temperature and effective setpoint HVAC AUTO is invalid for changeover applications When the Digital input is configured as Heat Cool changeover input this input will always have priority over the network nviApplicMode s HEAT or HVAC COOL X X X X X This is an input from an energy management system e g Zone Manager When it is 0 the temperature control algorithm operates in a normal mode When it is 1 the effective setpoint will be shifted by the amount defined in nciEmergyManag si dlc setpt bump For cooling the effective setpoint will be increased for heating the effective setpoint will be decreased always regarding the frost limits It is an emergency input from a device that determines the correct action during a given emergency such as a fire EMERG
95. s left Digital Engineering Units State English Metric or or User Address NvName Field Name States plus Range Value FirstStageCooL nciCntrlSettings Switch level cool 0 SNVT lev percent 5 0 to 100 0 Disable SecondStageCool nciCntrlSettings Switch level cool 1 SNVT lev percent 5090 0 to 100 0 Disable ThirdStageCool nciCntrlSettings Switch level cool 2 SNVT lev percent 7596 0 to 10095 0 Disable FirstStageHeat nciCntrlSettings switch_level_heat 0 SNVT_lev_percent 5 0 to 100 0 Disable SecondStageHeat nciCntriSettings switch_level_heat 1 SNVT_lev_percent 50 0 to 100 0 Disable ThirdStageHeat nciCntrlSettings switch_level_heat 2 SNVT_lev_percent 75 0 to 100 0 Disable StageHyst1 nciCntriSettings staging hysteresis 0 SNVT lev percent 1096 0 to 100 StageHyst2 nciCntriSettings staging hysteresis 1 SNVT lev percent 1096 0 to 100 DicStptBump nciEnergyManag si dlc setpt bump SNVT temp p E Oto 10K RecRampCool nciEnergyManag si optstart grad 0 SNVT temp p 0 K hr 20 to 0 K hr RecRampHeat nciEnergyManag si optstart grad 1 SNVT temp p 0 K hr 0 to 20 K hr continued 74 2935 3r0909 40 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments This is the switching level to turn on stage 1 of the cooling equipment if configured as multistage
96. s to their initial positions and then transitions to one of the control modes When the effective occupancy changes to unoccupied or standby after start up or 24 hours have elapsed since the last start up the Hydronic Controller transitions to this mode COOLING The Excel 10 Hydronic Controller is Network input DestHvacMode has a value of COOL controlling in the Cooling mode HVAC AUTO and the space temperature is above the cooling setpoint HEATING The Excel 10 Hydronic Controller is Network input DestHvacMode has the value of HVAC HEAT controlling in the Heating mode HVAC AUTO and the space temperature is below the heating setpoint MANUAL No control algorithms are active Network input DestManMode has value of MODE MANUAL Physical inputs are periodically read and digital filtering of analog inputs is turned off to speed up settling time Network input variables are received and output variables are sent periodically Outputs may be turned on or off by settings in network input nviTest FACTORY TEST Control algorithm is disabled special This mode is for factory testing only factory test program runs DISABLED Control algorithms are terminated Network input DestManMode has a value of outputs are turned off turn off MODE DISABLED sequences and interlocks are active Frost protection is disabled Agency Listings Table 5 provides information on agency listings for Exc
97. sensor setpoint adjustment and E Bus jack e T7770C Wall Module with temperature sensor setpoint adjustment bypass button and LED and E Bus jack e T7770D Wall Module with temperature sensor bypass button and LED and E Bus jack Other products Q7750A Excel 10 Zone Manager Q7751A Bus Router US only Q7752A Serial Adapter US only e AK3781 E Bus non plenum 22 AWG 0 325 mm twisted pair solid conductor non shielded wire one twisted pair US only AK3782 E Bus non plenum 22 AWG 0 325 mm twisted pair solid conductor non shielded wire two twisted pairs US only AK3791 E Bus plenum 22 AWG 0 325 mm twisted pair solid conductor non shielded wire one twisted pair US only AK3792 E Bus plenum 22 AWG 0 325 twisted pair solid conductor non shielded wire two twisted pairs US only C7608A Return Air Sensor Europe only Refer to the Table 12 see Application Steps Step 5 Order Equipment for complete listing of all available part numbers EXCEL 10 CONTROLLER SYSTEM ENGINEERING Control Application Hydronic systems in commercial buildings control room temperature through the control of heat and or cold water valves The Hydronic controller is typically connected to an Excel 10 wall module that incorporates a temperature sensor W7762B HYDRONIC CONTROLLER setpoint and a bypass or override button Fig 2 shows a typical Hydronic contro
98. settings prior to scheduled Occupancy The Hydronic controller uses the configured rates to determine the optimum time to start increasing the heating or cooling demand See the following figures The configuration parameters are in K hour COOLING GRADIENT STANDBY OR UNOCCUPIED COOLING SETPOINT OCCUPIED COOLING SETPOINT SCHEDULED TIME OCCUPIED OPTIMUM START TIME COOLING Fig 5 Optimum start cooling Occupancy Status The occupancy status is determined based upon the following table Manual override may come from the network input DestManOcc or from the bypass push button Table 3 Effective Occupancy Mode Arbitration X Don t care 74 2935 3r0909 8 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Operating Modes The possible modes of operation are listed in Table 4 Table 4 Modes of Operation for Excel 10 Hydronic Controller Mode Description Events Causing a Controller to Switch to This Mode Operational Modes User Address SrcHydModeS START UP AND WAIT periodically Control algorithms are disabled Outputs stay in their initial positions Physical inputs are periodically read and digital filtering of analog inputs is turned off to speed up settling time Network input variables are received and output variables are sent This is the first mode after an application restart FLOATING OUTPUTS SYNCH The Hydronic Controller drives the floating control valve
99. short as practical When necessary use heavier gauge wire a bigger trans former or install the transformer closer to the controller 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING IMPORTANT No installation should be designed where the line loss is greater than two volts to allow for nominal operation if the primary voltage drops to 102 Vac 120 Vac minus 15 or 193 Vac 230 minus 15 To meet the National Electrical Manufacturers Association NEMA standards a transformer must stay within the NEMA limits The chart in Fig 13 shows the required limits at various loads With 100 percent load the transformer secondary must supply between 23 and 25 volts to meet the NEMA standard When purchased transformer meets the NEMA standard DC20 1986 the transformer voltage regulating ability can be considered reliable Compliance with the NEMA standard is voluntary The following Honeywell transformers meet this NEMA standard Transformer Type VA Rating AT20A 20 AT40A 40 AT72D 40 AT87A 50 AK3310 Assembly 100 IMPORTANT US ONLY If the W7762 Controller is used on Heating and Cooling Equipment UL 1995 devices and the transformer primary power is more than 150 volts connect the transformer secondary to earth ground see Fig 14 SECONDARY VOLTAGE OF LOAD iias Fig 13 NEMA class 2 transformer voltage output limits 74 2935 3r0909 20 W7762 HYDRONIC CONTROLLER
100. t NOTES 1 Default setpoints are used when there is no setpoint knob and no network setpoint input 2 Ensure that unoccupied heating occupied heating occupied cooling lt unoccupied cooling and standby heating standby cooling Miscellaneous The available options for the miscellaneous tab with the default values shown are listed in the following table See Control Provided and Configurations sections above for more information on parameters Table 18 Hydronic Controller miscellaneous configuration options Funcion Configuration options Default Bypass time 0 to 1080 minutes 180 minutes Override priority last wins the last command from either the wall module or from the Last wins network has priority network wins a network command always has priority until canceled Demand limit control bump limit control Demand limit control bump to 10K 2K Cool rec ramp fe 1 to 0 K hour 0 Cooling optimum start gradient Heat rec ramp 0 to 20 K hour 0 Heating optimum start gradient PID The available options for configuring the PID parameters with the default values shown are listed in the following table See Control Provided section above for more information on parameters Table 19 Hydronic Controller PID configuration options aK T TK NOTES 1 With version 1 0 2 and later firmware it is possible to configure the proportional gain as low as 2 for PI control or 1 25 for P control
101. t potentiometer W7762B controllers may have an Excel 10 wall module with setpoint potentiometer connected to them When configured UseWallModSpt the value from the setpoint knob is used to calculate the cooling or heating Occupied setpoint There are two options SptKnob that determine how the setpoint to be used by the control algorithm is calculated Relative or Offset and Absolute Middle When configured for Relative the Wall Module setpoint knob represents a number from 5 to 5 C 9 to 9 F that is added to the software occupied setpoints for the heat and the cool modes SptCoolOcc and SptHeatOcc When SptKnob is set to Absolute Middle the setpoint knob becomes the center of the Zero Energy Band ZEB between the cooling and heating occupied setpoints The range of the ZEB is found by taking the difference between the configured heating and cooling occupied setpoints therefore for Absolute Middle the actual setpoints are found as follows SrcRmTempSptEff in cooling mode lt SrcRmTempSptHw SptCoolOcc SptHeatOcc 2 SrcRmTempSptEff in heating mode lt SrcRmTempSptHw SptCoolOcc SptHeatOcc 2 During Standby and Unoccupied modes the remote setpoint knob is ignored and the configured setpoints for those modes are used instead Setpoint Limits Setpoint knob limits are provided by SptKnobLoLim and SptKnobHiLim The occupied setpoints used in the control algorithms are limited by these parameters When
102. t on a node This is the answer to the nviRequest This indicates whether nviRequest uses a fault object ID This indicates whether nviRequest uses a fault request This indicates whether the device is enabled or disabled nviManualMode DISABLE This indicates whether an update nviRcvHrtBt is missing This indicates whether an alarm occured See nvoAlarm This shows the answer to nviRequest REPORT MASK continued 65 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left Digital Engineering Units State English Metric or User Address NvName Field Name States plus Range SrcTermLoad nvoTerminalLoad SNVT_lev_percent 163 163 163 835 INVALID SrcHvacModeU nvoUnitStatus SNVT_hvac_mode HVAC_HEAT HVAC_COOL HVAC_OFF SrcHeat nvoUnitStatus heat_output_primary SNVT_lev_percent 0 to 100 163 835 INVALID SrcCool nvoUnitStatus cool_output SNVT_lev_percent 0 to 100 163 835 INVALID SrcAlarmUnit nvoUnitStatus in_alarm UBYTE NO_ALARM ALARM ALARM_NOTIFY_DISABLED SrcWindow nvoWindow value SNVT_switch value 0 at application 0 to 100 restart nvoWindow state SNVT_switch state NO_WINDOW CLOSED at application OPEN restart NO_WINDOW NodeTypeO UBYTE 70 NodeType1 id 1 UBYTE 67 Y NodeType2 id 2 UBYTE 85 D NodeType3 id 3 UBYTE 50 2 NodeVerMajor major ver UBYTE 0 to 255 NodeVerMinor minor ver UBYTE
103. tely when its value has changed significantly gt 1 and periodically according to nciSndHrtBt The output value represents the output of the control algorithm but is limited to a range of 0 to 100 This indicates the status of the override pushbutton This indicates the state of the digital input This contains the analog to digital converter count measured from the analog value This count represents the measured time during the second part of each a d conversion See above This is the set point from the wall module setpoint knob and may be absolute or relative depending upon nciWallMod set pnt knob This is the measured space temperature accurately reported between 0 and 40 This is used to establish hardware dependent factory default configuration settings for the Hydronic controller continued 63 74 2935 3r0909 10 CONTROLLER SYSTEM ENGINEERING Table C4 Output Variables for W7762 Controllers left SrcRmTempEff nvoSpaceTemp n 74 2935 3 0909 Field object id invalid id invalid request disabled comm failure in alarm report mask 64 Digital Engineering Units State English Metric or or States plus Range Value SNVT occupancy OC OCCUPIED OC UNOCCUPIED OC NUL No Sensor SNVT temp p 0 to 40 C 327 67 C INVALID UWORD NODE_OBJECT HYD_OBJECT Bit VALID_ID INVALID_ID Bit VALID_REQUEST INVALID RE
104. the setpoint knob is configured to be Absolute Middle the lowest actual setpoint allowed is equal to SptKnobLoLim and the highest actual setpoint allowed is equal to SptKnobHiLim When the setpoint knob is configured to be Relative the lowest actual setpoint allowed is equal to SptHeatOcc SptKnobLoLim and the highest allowed is equal to SptCoolOcc SptKnobHiLim Setpoint from Network When not configured for UseWallModSpt DestRmTempSpt must be bound to another node that provides a setpoint When bound and a valid update is received DestRmTempSpt is used with the appropriate ZEB ZEBoccupied SptCoolOcc SptHeatOcc ZEBstandby SptCoolStby SptHeatStby The Unoccupied setpoint does not depend on DestRmTempSpt at all Setpoint Offset Third party nodes may be bound to DestSptOffset to shift the setpoint in the range of 10 delta C to 10 delta C Table 1 Example setpoint values based upon default configuration Absolute Middle setpoint knob C Configured Configured Setpoint Effective Effective Cooling Spt Heating Spt Knob Cooling Spt Heating Spt Occupancy Mode Standby 289 NOTES 1 Sample value shown Limited by default configuration settings to the range of 12 to 30 C 2 Limited to the range of 10 to 35 C 3 Setpoint Knob 2 2 4 Setpoint Knob ZEB 2 Table 2 Example setpoint values based upon default configuration Relative setpoint knob C Configured Configured
105. to 600 seconds Output 2 minimum stage off time 0 to 600 seconds 1 2 and 3 stage minimum on time 0 to 1200 seconds Output 2 valve run time PWM floating floating mid valve run time 20 to 600 seconds 150 s period minimum stage on time PWM cycle time 20 to 600 seconds 1 2 and 3 stage minimum on time 0 to 1200 seconds PWM zero position 0 to 100 PWM full position 0 to 100 100 NOTES 1 Valve action settings apply to floating PWM or thermal types 2 Settings apply to both actuators if both are PWM Output 1 valve run time PWM floating floating mid valve run time 20 to 600 seconds 150 s period minimum stage on time PWM cycle time 20 to 600 seconds Switching Levels The available options for switching level configurations with the default values shown are listed in the following table See Configurations section above for more information on parameters Table 16 Hydronic Controller switching levels configuration options Cooling stage 1 switching level Heating stage 1 switching level Cooling stage 2 switching level Heating stage 2 switching level Cooling stage 3 switching level Heating stage 3 switching level 27 74 2935 3r0909 EXCEL 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Zone Options The available options for input configurations with the default values shown are listed in the following table Table 17 Hydronic Controller zone configuration options Configuration options oet
106. viRequest object request object request t Enum from Echelon defined RQ NORMAL RQ UPDATE STATUS UPDATE ALARM REPORT MASK DestOccSensor nviSensorOcc SNVT occupancy OC NUL OC OCCUPIED if bound but fails to be OC UNOCCUPIED received or at OC BYPASS application restart NUL DestRmTempSpt nviSetPoint SNVT temp p INVALID 10 to 35 at application restart 327 67 C INVALID DestSptOffset nviSetPtOffset SNVT_temp_p 0 if bound but fails to be 10 to 10 K received or at 327 67 C INVALID application restart DestRmTemp nviSpaceTemp SNVT_temp_p INVALID 0 to 40 C if bound but fails to be 327 67 C INVALID received or at application restart nviTest output1_cmd BYTE NORMAL_HC_MODE NORMAL_HC_MODE at application restart OFF1_OFF2 ON1_OFF2 OFF1_ON2 ON1_ON2 TESTPOSITION nviTest output1_test_pos SNVT_lev_percent 0 at application restart 0 to 100 nviTest output2_cmd BYTE NORMAL_HC_MODE NORMAL_HC_MODE at application restart OFF1_OFF2 ON1_OFF2 OFF1_ON2 ON1_ON2 TESTPOSITION nviTest output2_test_pos SNVT_lev_percent 0 at application restart 0 to 100 nviTest override_LED BYTE NORMAL_LED_MODE NORMAL_LED_MODE at application restart LED_OFF LED_ON 2 continued 74 2935 3r0909 50 EXCEL 10 CONTROLLER SYSTEM ENGINEERING Table C3 Input Variables for W7762 Controllers right Share SH Map MA Direct Access DA Monitor M Heartbeat HBT Comments This
107. vides a heartbeat output that can be used by the destination objects to ensure that the node is still healthy The heartbeat output may be disabled by setting nciMaxSendTime 0 This is the configuration property used to control the maximum time that elapses after the last update to nviApplicMode nviDIcShed nviWindow nviManCool nviManHeat nviSensorOcc nviSetPtOffset nviSpaceTemp nviTodEvent before these NV inputs adopt their default values Setting nciRcvHrtBt 0 means that the assigned NV input does not wait for an periodic update and that it will never revert to any default when not receiving an update If nviSpaceTemp and nviApplicMode are not received at regular intervals that are less than the heartbeat time the controller will assume that there is a communication failure and revert to Occupied mode This is the configuration property used to control the maximum time that expires before the object automatically transmits the current value of nvoActiveSetPt nvoAlarm nvoApplicMode nvoCoolOutput nvoWindow nvoHeatOutput nvoHydStatus nvoSensorOcc nvoSpaceTemp nvoTerminalLoad nvoUnitStatus This provides a heartbeat output that can be used by the destination objects to ensure that the node is still healthy The heartbeat output may be disabled by setting nciSndHrtBt 0 continued 39 74 2935 3r0909 10 HYDRONIC CONTROLLER SYSTEM ENGINEERING Table C2 Configuration Variables for W7762 Controller

Excel 10 - CentraLine

Contents

Download Pdf Manuals

Related Search

Related Contents