Control Link Case Display Installation Instructions
Contents
1. 3 The current value of this parameter will be displayed Use the arrow keys to change the value 4 Press SET to accept value 5 Repeat steps 1 4 until all set points have been properly configured 6 When finished press SET again for five seconds to save changes and exit The display will blank for one second and then revert to nor mal display if the save was successful 7 To cancel all changes press and hold SILENCE for five seconds or leave controller idle for 60 seconds You will lose all setpoint changes made since you entered general programming mode WARNING You MUST press and hold SET after changing setpoints if you want your changes to be permanent Leaving the controller idle for 60 seconds will log you out and cancel all your setpoint changes 8 Ifthis CL CD is connected to an E2 you must save the CL CD s set tings in the E2 Press gt i and select 42 Control LinkCD Highlight the application whose number corresponds to the network address number of the CL CD you programmed in steps 1 13 From the Status Screen that appears press and select 9 Application Commands Select 2 Snd E2 Cnfg to Device Advanced Parameters Code Description Min Max Default LF Input power line frequency Hz 50 60 60 FE Temperature units this affects units for both dis F C F play and setpoints 5 IP If the discharge air sensor is connected to input no YES YES 1 set this parameter to YES Ifa2. Discharge air sensor value Input 1 Pr Product temperature Input 2 dF Defrost termination temperature or switch state Input 3 co Coil outlet temperature Input 4 di Generic digital input Input 5 SH The calculated coil superheat if 3 and 4 have thermistors roy State of generic relay 1 reye State of generic relay 2 In this mode you may also use the UP BUTTON to view the name of the case programmed for the CL CD via E2 and the MODBUS address of the CL CD Pressing the UP BUTTON cycles between the case name if defined otherwise blank and the MODBUS address number Defrost Mode When the case circuit is in defrost the CL CD may be programmed to dis play any four character message instead of the default temperature This feature ensures the higher case temperatures that occur during a defrost cycle do not alarm customers The defrost message is displayed throughout the defrost cycle and for a programmed amount of time afterwards Alarms When a CL CD is associated with a Standard Circuit application in E2 any alarm that occurs on the E2 pertaining to the circuit will cause the status LED to glow red indicating an active alarm If a temperature sensor connected to the CL CD fails an alarm message t5 will be displayed indicating which input number has failed and whether the sensor is open or short ES 10 for example indicates temp sensor 1 is open The CL CD will also send this alarm to the
3. E2 Press the ALARM SILENCE button to clear the alarm message and dis play the default temperature or defrost message if in defrost mode If the condition that caused the alarm is still present the alarm will re occur after one minute The ALARM SILENCE button will also return to normal all alarms in E2 related to the CL CD If the alarm re occurs a new alarm record will be written to the E2 Alarm Log Multiple Alarms If more than one CL CD related alarm is active the CL CD display will only display the first alarm that occurred All other alarms will only be vis ible from the E2 Alarm Log Pressing the ALARM SILENCE button returns all alarms to normal both on the CL CD display and the E2 Alarm Log NOTE It is recommended you manage alarms through the E2 Alarm Log instead of the CL CD interface Viewing and resetting the alarms through E2 will ensure you are aware of all alarms affecting the case and you can reset or clear individual alarms when necessary A ECE t E COMPUTER PROCESS CONTROLS 800 825 2724 770 425 2724 http www cpcus com Computer Process Controls 1640 Airport Rd Suite 104 Kennesaw GA 30144 This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation P N 026 460
4. and other important functions The E2 Online Help will explain the function of each parameter to access Online Help high light the parameter you need assistance with and press 6 When all parameters are set properly press gt to return to the CL CD s status screen From the status screen press and select 9 Application Commands Application commands allow you to clear alarms in the CL CD send configuration from E2 down to the CL CD or receive configuration from the CL CD Select 3 Snd E2 Cnfg to Device Repeat steps 1 6 until all CL CDs are set up Configuring CL CD From The Control Link Interface SET UP BUTTON ALARM LED BUTTON ALARM SILENCE 7 SEGMENT LED DISPLAY BUTTON Figure 7 CL CD Display DOWN BUTTON Before changing parameters clear any active alarms by pressing the ALARM SILENCE button Press and hold the UP and DOWN buttons simultaneously for five seconds to enter advanced programming mode The display will show APAS Press SET and use the arrow keys to select the correct password default is 0000 and press SET to enter it The display will show the first programmable parameter LF line fre quency The arrow keys may be used to scroll through the list of general parameters To change the value of any parameter 1 Select the parameter using the arrow keys until the code is shown 2 Press SET
5. product temp or return air temperature sensor no YES no S2Pr is connected to input 2 set this parameter to YES If the defrost termination sensor is connected to no YES ino 53Pr input 3 set this parameter to YES Sup If the coil outlet temperature sensor is connected ng YES AG n to input 4 set this parameter to YES If the generic digital input 5 is being used and ng YES no SSPr has a switch or digital sensor connected set this parameter to YES Smoothing factor for superheat calculation I 0 5 SHA higher values cause the calculated superheat to respond slower to changes in superheat Default sensor value to display during normal I 4 I dSdP operation select input default is discharge air D CLE For the generic digital input defines whether the EJg9E tut Ed9E input is edge triggered or level triggered Text to display during defrost This may not be blank Drnt set through the CL CD keypad input but you m may view its value by pressing SET This must be programmed through E2 Orde Time after defrost ends that the defrost message i 60 j Orne will continue to be displayed minutes Case name displayed when the UP ARROW key blank is pressed This may not be set through the CL CASn CD keypad input but you may view its value by pressing SET This must be programmed through E2 Ifa sensor is connected to input 2 this deter Sn5 CAL SASr mines how product temperature is calculated If 2 is a product temp sensor S
6. 1 Rev 0 7 10 2006
7. Control Link Case Display Installation Instructions Overview The Control Link Case Display CL CD P N 818 2060 is a electronic refrigerated case display that uses up to five inputs to monitor case temper ature defrost termination temperature product or return air temperature and other sensor values and switches related to refrigerated case operation The CL CD displays these temperatures and values on an LED display The CL CD may be networked with an E2 RX controller software version 2 30 or higher to share sensor data with a Standard Circuit application that controls the case refrigeration Because CL CDs require only a single network cable to communicate with an E2 cases equipped with CL CDs require significantly less wiring and installation labor than traditional installations which typically require one cable per sensor run to a centrally located group of input boards NOTE For more information about networking Control Link CD with E2 refer to Technical Bulletin 026 4602 available on the Internet at http www cpcus com click Library then Technical Bulletins Mounting Control Link Operating Environment Operating Temperature 10 60 C 14 140 F Operating Humidity 90 RH non condensing Storage Temp 30 65 C 22 149 F Max Power Consumption 15W Control Link w expansion board Main Module The Control Link main module is designed for mounting on a refrigerated case or in an e
8. I O screen in a box labeled ECT Devices there will be a parameter called CtrILink CaseDisp In this field enter the number of CL CDs on the network 4 Press D to return to the Network Setup menu then select ES Controller Setup 5 Locate the CtrlLink CaseDisp units you added to the network list press WS and KY to scroll through the list The default name for a CL CD is a code string beginning with CD If desired enter a new name for each device in the Name field 6 By default each CtrlLink CaseDisp in the network list has a board number of 0 To set the address and begin communication press and select WB Select Address In the list of MODBUS devices choose the address number corresponding to the CL CD s dip switch setting and press to select it A ECE coe COMPUTER PROCESS CONTROLS 800 825 2724 770 425 2724 http www cpcus com Computer Process Controls 1640 Airport Rd Suite 104 Kennesaw GA 30144 This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation P N 026 4601 Rev 0 7 10 2006 Control Link Case Display Installation Instructions Repeat steps 5 and 6 until each CL CD device has a name and address When finished press eS to return t
9. L CD are iden tical and are used the same way Seven Segment Display The four digit seven segment display is the primary means a technician or operator will use for viewing temperatures and alarm codes and program ming setpoints Alarm LEDs The ALARM LED is located on the left side of the display directly above the seven segment LEDs This LED is ON to indicate one or more alarms are active for that case This may be an alarm generated by Control Link or if the Control Link is associated with an E2 Standard Circuit it may also indicate an alarm generated by E2 for the circuit Buttons The four buttons to the right of the seven segment display are used to pro gram the CL CD select temperatures and alarms for viewing and perform other functions such as alarm clearing Modes of Operation Case Temperature Display Normal Mode When the case circuit is not in defrost and no alarms are active the CL CD display shows a temperature The user may select any of the four tempera ture inputs on the CL CD as the default display temperature by default the CL CD shows the discharge air temperature In this mode you may view the values of all the other inputs and outputs by pressing the DOWN BUTTON Each time the DOWN BUTTON is pressed a message will be displayed for one second to indicate what input or output value will be shown followed by the current value Msg Displayed Sensor Value Displayed dA
10. ish to assign as MODBUS Like the CL CD connections wire RS485 to RS485 RS485 to RS485 and the shield cable to the middle terminal If the E2 will be the first device in the daisy chain set the port s termination jumpers to the TERMINATED position Refer to the E2 user manual for more information NETWORK TERMINATION ON THE TWO END DEVICES NETWORK ADDRESSING SWITCH 40203 4 5 6 ADDRESS 1 2 4 8 16 32 E2 NETWORK CARD HAABAAAR EXAMPLES ADDRESS 1 WENE 2 WARABAGE 1 L SWITCHES 1 6 coe NETWORK oR ADDRESSING ADDRESS 2 2 SWITCH IN ON POSITION ADDS ADDRESS TO NETWORK ID CONTROL LINK MODULE LEFT SIDE ADDRESS 11 VIEW 420304 5 6 1 2 8 BAUD RATE amp PARITY 7 8 SET SWITCH 7 IN THE DOWN OFF POSITION TO SET BAUD RATE TO 19200 BAUD NETWORK WIRING BELDEN 8761 OR EQUIVALENT RS485 ov RS485 WIRE RS485 to RS485 WIRE RS485 to RS485 SET SWITCH 8 IN THE DOWN OFF POSITION TO SELECT NO PARITY CONNECT SHIELDS TO 0V MIDDLE TERMINAL TERMINATION JUMPER SETTINGS UNTERMINATED TERMINATED Figure 6 CL CD Networking E2 Setup of CL CD Devices To enable communications between E2 and the CL CD units the devices must be added and addressed in E2 Log in to the E2 with Level 4 access Press C hen 77e Connected I O Boards and Controllers 3 Inthe Connected
11. n5r the raw Prind value of the sensor will be used as the product a temp If 2 is a return air temp sensor CAL product temp will be calculated by weighted average of the discharge and return air tempera tures PrCE Weight in percentage of the discharge air sensor g 100 50 value 1 in calculating the produc temperature P E if CAL is used as the product temp method For example if PrCE is 60 60 of input 1 will be added to 40 of input 2 to yield the product temperature Lyi Fail safe state of relay 1 if communication is OFF On OFF lost with the E2 y2 Fail safe state of relay 2 if communication is OFF On OFF E lost with the E2 Advanced Parameters Code Description Min Max Default Input type of defrost termination sensor 3 ntl d9 nEC dFEE Choose nt if a temp sensor or d 9 if a temper ature switch CAL I Calibration offsets of the temperature inputs l 10 10 o CALZ 2 3 and 4 If a sensor is giving a high or low 2 reading enter an offset to correct it CALS CALY APAS The password required to edit settings from the pooo 9999 0000 CL CD keypad SFE Software revision number This field is read only E2 Circuit Association The final step in setting up an E2 MODBUS network with Control Link CDs is associating the Standard Circuit applications in the E2 with the CL CDs they are attached to Refer to the E2 user manual for information on ho
12. nclosure near the case Figure 1 shows module dimensions Control Link 13 65 cm front view FRONT VIEW SIDE VIEW 2 19 1 38 5 56 cm 3 49 cm Figure I Control Link Module Mounting Remote Display Mounting The remote display is designed to be mounted on an accessible part of a refrigerated case or enclosure no more than 20 feet from the main module If flush mounting on a flat surface such as the front of a case or enclosure punch a 5 8 square hole in the surface to allow the protruding RJ45 jack to recess and then drill 5 32 holes for the mounting screws using the remote display itself as a template Figure 2 shows the dimensions Power down the main module before connecting the remote display Use CATS5 wiring with RJ45 connectors to connect the Main Module with the Remote Display Do not exceed a maximum length of 20 feet REMOTE DISPLAY 6 00 12 7 cm FRONT V 4 25 10 8 cm 0 31 SIDE RIGHT VIEW FLUSH MOUNT TEMPLATE Figure 2 Remote Display Mounting Control Link Module front view bottom right corner Wiring Power Control Link Module The spade lug connectors on the lower right side of the Control Link module are the power connectors Connect to 120 240 VAC 50 60 Hz line voltage Figure 3 Observe polarities as indicated Sensors Case temperature and prod uct temperature or return air sensors must be wired t
13. o the top three terminal connec tor on the left side of the Control Link module The defrost termination and coil outlet temperature sensors if present must be wired to the middle three terminal connector Use only CPC NTC 10k thermistors The defrost termination sensor can be either a 10k ther mistor or a temperature switch Wire as shown in Figure 4 CASE TEMP DISCHARGE AIR SENSOR Control Link Module front left side PRODUCT TEMP OR RETURN AIR TEMPERATURE SENSOR ISSSISOgiogsG DEFROST TERMINATION SENSOR OR TEMPERATURE SWITCH Control Link Module front left side COIL OUTLET le GENERIC DIGITAL INPUT switch or Klixon Mount the case temp sensor in the discharge air stream for the case Mount the defrost termination sensor near the evaporator coil Mount the product tempera ture sensor anywhere in the refrigerated space If using a return air sensor mount the sensor in the return air stream The coil outlet sen sor must be tie wrapped to the evaporator coil at the outlet Control Link Module front left side ISSUIOOTIOSS Figure 4 Sensor Wiring The bottom three terminal connector may be used for one generic digital sensor This sensor s ON OFF state is sent back to the E2 as a generic input value and may be programmed in a Standard Circuit application as a clean switch door switch or any other type of digital input NOTE This input does not sup
14. o the Network Setup menu then press WB Controller Status Locate the CL CDs you set up and verify their status reads Online If not verify the CL CD is powered up wired correctly and has the proper network address baud rate and parity CL CD Software Setup Once a CL CD unit has been added and is online on the E2 MODBUS net work the CL CD itself must be programmed This may be done either by directly programming the CL CD and uploading the configuration to E2 or by programming the CL CD through E2 and downloading it to the CL CD Because there are features of the CL CD that can only be enabled and configured through the E2 it is recommended all CL CD setup be done through E2 However if a CL CD must be installed with no available access to E2 either because it is stand alone or because E2s have not been installed yet you may wish to configure the CL CD from the Control Link main module or remote display interface Configuring CL CD Through E2 1 While logged in to the E2 with Level 4 access press B CONFIG URED APPLICATIONS 2 Select 42 Control Link CD 3 Highlight the application name whose number corresponds to the net work address of the CL CD you wish to set up i e CL CD001 for CL CD 1 4 From the CL CD s status screen press SETUP 5 The parameters in these setup screens can be used to specify which inputs are present the case name or defrost override message sensor offsets
15. port pushbuttons and momentary switches and may only be used for edge triggered or level triggered switches CL CD Onboard Outputs The CL CD has two on board relays that may be used as satellite outputs by other E2 applications Wire the outputs to the two wire terminals on the right side of the control unit as shown in Figure 5 Each of these output points are rated to a maximum of 3A 250V Relay 1 SATELLITE OUTPUT Relay 2 La SATELLITE OUTPUT 2 For loads greater than 3A use the outputs to energize external relays for compressors defrost and case lights Figure 5 CL CD Outputs Networking CL CDs communicate with a parent E2 controller using a MODBUS net work Each CL CD must be equipped with a network card P N 618 2080 which plugs into the Control Link main module in the Network Comm Bus socket The network card has a three terminal connector for wiring the MODBUS network cable and a DIP switch bank with eight switches for assigning the CL CD a unique network address CL CDs must be networked together in a daisy chain configuration all CDs networked in series from the E2 and terminated at the two end devices No splits or star configurations are allowed The network cable must be Belden 8761 or equivalent Observe network polarity wiring RS485 to RS485 OV to OV and RS485 to RS485 see Figure 6 Termination The devices at both ends of the daisy chain must be terminated
16. using the network termination jumpers On the CL CD network card these are located below the network connector To terminate a device set all three termination jumpers to the LEFT position i e toward the rear of the mod ule To unterminate a device set all three jumpers to the RIGHT position i e toward the front of the module Refer to Figure 6 CL CD Network Addressing Baud Rate and Parity Each CL CD must have a unique network address The network address is set by switches 1 6 of the DIP switch bank on the network card Switches 1 6 correspond to binary digits of the network address 1 2 4 8 16 and 32 respectively Each switch in the UP ON position adds the correspond ing value to the network address CL CDs should be numbered in order starting with unit 1 see Figure 6 Switches 7 and 8 set baud rate and parity Set switch 7 to DOWN OFF to set the baud rate at 19 2k Set switch 8 DOWN OFF to specify no parity Network Connection to E2 Connecting a CL CD to an E2 unit requires the E2 to be version 2 30 or above An E2 has up to three COM ports that can be assigned for MOD BUS communication COM2 an RS485 port on the E2 power interface board and COM4 and COM6 which are optional ports requiring expan sion cards Refer to the latest E2 manual 026 1610 Rev 4 or above for information about port locations and expansion cards Connect the CL CD network cable to the three terminal connector on the COM port you w
17. w to add and configure standard circuits Log into the E2 with level 4 access 2 Press CIRCUITS to view the circuit summary screen Highlight the circuit you wish to configure then press SETUP 4 In Setup screen C1 GENERAL set the following two parameters Num Case Sensrs Enter the number of CL CDs on this circuit Num Prod Sensrs If the CL CDs on this circuit have sensors on input 2 enter the number of these sensors Using CaseDisp Set to YES indicating the case temperature and other temps related to this circuit are being supplied by CL CDs 5 Press to move to Setup screen C2 Case Disp This screen will show a number of Case Display fields equal to the number entered in Num Case Sensrs step 4 For each field press LOOK UP and select the application name whose number corresponds to the net work address number of the CL CD you want to associate For exam ple if you want to associate CL CD 7 with this circuit select CL CD007 from the Look Up Table Once associated the Standard Circuit will automatically receive discharge air termination temperature and product temperature either by sensor or calculation from the CL CDs Operation The Control Link module display is primarily used to view temperatures and other information about the case circuit and secondarily to program the CL CD or clear alarms The display on the front of the Control Link module and the remote display unit commonly used with C
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