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26 • XR35CX I&O Manual

026-1203 Rev 3 03-FEB-2015

18.4.Wiring Types

Retail Solutions specifies Belden #8761 shielded

twisted pair cables for use as MODBUS wiring (or

Belden #82761 and Belden #88761 for plenum instal-

lations).

For MODBUS network wiring of XR35CX con-

trollers to E2, Belden #8641 (

Retail Solutions P/N

135-8641

) is the recommended wire type to use.

If the recommended cable is not available in your

area, be sure the wiring meets or exceeds the follow-

ing specs:

18.5.MODBUS Termination

Blocks

Because the XR35CX device has no on-board

means of termination, use the MODBUS termination

block (

P/N 535-2711

) for termination that can be

wired to the end of the cable segment using the three-

pin connector. Wire the two signal wires to the out-

side terminals, and connect the shield to pin

, keep-

ing the exposed shield wire length as short as possible

(3 inches ideal maximum length).

Shielded?

Yes

Conductor Type

Twisted Pair

Gauge

18 - 24 AWG

Capacitance between

signal wires

31 pF/ft or less

(9.45 m) or less

Capacitance between

signal and shield

59 pF/ft or less

(17.98 m) or less

Maximum Length

4000 ft/18 to 22 AWG

(1219.2 m)

2500 ft/24 AWG

(762 m)

Nominal Impedance

120



±50



Figure 18-9

- MODBUS Termination Block (P/N 535-2711)

SHIELD WIRE

(CONNECT TO

OF LAST DEVICE)

PIN 18

FROM OTHER

DEVICES

TO LAST DEVICE
AT END OF DAISY

CHAIN

Содержание Dixell XR35CX - 110VAC

Страница 1: ...026 1203 Rev 3 03 FEB 2015 XR35CX Digital Controller for Medium Temperature Refrigeration Applications Installation and Operation Manual ...

Страница 2: ......

Страница 3: ...Emerson Climate Technologies Retail Solutions 1065 Big Shanty Rd NW Suite 100 Kennesaw GA 30144 USA Phone 770 425 2724 Fax 770 425 9319 ...

Страница 4: ......

Страница 5: ...MMANDS 4 4 1 KEYS AND FUNCTIONS 4 4 2 USE OF LEDS 4 5 MAX AND MIN TEMPERATURE MEMORIZATION 5 5 1 HOW TO SEE THE MIN TEMPERATURE 5 5 2 HOW TO SEE THE MAX TEMPERATURE 5 5 3 HOW TO RESET MAX AND MIN TEMPERATURE RECORDED 5 6 MAIN FUNCTIONS 6 6 1 HOW TO SEE THE SETPOINT 6 6 2 HOW TO CHANGE THE SETPOINT 6 6 3 HOW TO START A MANUAL DEFROST 6 6 4 HOW TO CHANGE A PARAMETER VALUE 6 6 5 THE HIDDEN MENU 6 6 5...

Страница 6: ...E CONNECTION 17 13 HOW TO USE THE HOT KEY 18 13 1 HOW TO PROGRAM A HOT KEY FROM THE CONTROLLER UPLOAD 18 13 2 HOW TO PROGRAM THE CONTROLLER USING A HOT KEY DOWNLOAD 18 14 ALARM SIGNALS 19 14 1 SILENCING BUZZER ALARM RELAY OUTPUT 19 14 2 ALARM RECOVERY 19 14 3 OTHER MESSAGES 19 15 SPECIFICATIONS 20 16 CONNECTIONS 21 17 E2 MODBUS NETWORK WIRING 22 18 ECT MODBUS NETWORKING TO E2S 23 18 1 COM PORT ASS...

Страница 7: ... manual is part of the product and should be kept near the controller for easy and quick reference The controller should not be used for purposes different from those described in this manual It can not be used as a safety device Check the application limits before proceeding SAFETY PRECAUTIONS AND WARNINGS Check that the supply voltage is correct before connecting the controller Do not expose to ...

Страница 8: ...o control defrost cy cles its maximum defrost duration MdF and two defrost modes time or controlled by the evaporator s probe P2P 3 3 Second Relay Configuration PAR oA1 TERM 1 7 Depending on the kind of application the function of the second relay terminals 1 7 can be set through the oA1 parameter 3 3 1 Defrost Relay oA1 dEF With oA1 dEF the relay functions as a defrost relay See Section 3 2 Defro...

Страница 9: ...erates as an alarm relay It is activated every time an alarm occurs Its status depends on the tbA parameter if tbA y the relay is silenced by pressing any key If tbA n the alarm relay remains ON until the alarm condition recovers 3 3 7 Night Blind Management During Energy Saving Cycles With oA1 HES the relay 1 7 operates to man age the night blind the relay is energized when the energy saving cycl...

Страница 10: ...ses the displayed value DOWN arrow key To see the MIN stored temperature in programming mode it browses the parameter codes or decreases the displayed value Switches the controller OFF if onF oFF Switches the light ON and OFF if oA1 Lig Key Combinations Table 4 1 XR35CX Front Panel Keys and Functions To lock and unlock the keyboard To enter programming mode To return to the room temperature dis pl...

Страница 11: ...be restored 5 2 How to See the MAX Temperature 1 Press and release the UP arrow key 2 The Hi message will be displayed followed by the maximum temperature recorded 3 By pressing the UP arrow key again or by waiting 5 seconds the normal display will be restored 5 3 How to Reset MAX and MIN Temperature Recorded 1 Press and hold the SET key for more than 3 seconds while the maximum or minimum tempera...

Страница 12: ...the UP or DOWN arrow keys to change its val ue 4 Press SET to store the new value and move to the following parameter 5 To exit press SET UP arrow keys or wait 15 sec onds without pressing a key 6 5 The Hidden Menu The Hidden Menu includes all the parameters of the controller 6 5 1 How to Enter the Hidden Menu 1 Enter the Programming mode by pressing the SET DOWN arrow keys for 3 seconds the C or ...

Страница 13: ...e DOWN arrow keys pressed for more than 3 seconds 2 The PoF message will be displayed and the key board will be locked At this point it will be possible to see the setpoint or the MAX or MIN temperature stored only 3 If a key is pressed more than 3 seconds the PoF message will be displayed 6 8 To Unlock the Keyboard To unlock the keyboard press the UP and the DOWN arrow keys for more than 3 second...

Страница 14: ...et of the third probe P4P Fourth probe presence n not present y present o4 Fourth probe calibration 12 0 to 12 0 C Allows to adjust possible offset of the fourth probe Ods Outputs activation delay at start up 0 to 255 min This function is enabled at the initial start up of the con troller and inhibits any output activation for the period of time set in the parameter Ac Anti short cycle delay 0 to ...

Страница 15: ...EP P1 Thermostat probe P2 Evaporator probe P3 Third probe only for model with this option en abled P4 Fourth probe SEt setpoint dtr percentage of visualization dLy Display delay 0 to 20 0 min res 10 sec When the temperature increases the display is updated of 1 C 1 F after this time dtr Percentage of the second and first probe for visualization when Lod dtr 0 to 100 100 P1 0 P2 if Lod dtr Allows t...

Страница 16: ...st delay after continuous cycle 0 to 23 5 hr Time interval between the end of the fast freezing cycle and the following defrost related to it AUXILIARY THERMOSTAT CONFIGURATION terms 1 7 oA1 AUS ACH Kind of regulation for auxiliary relay Ht heating CL cooling SAA Setpoint for auxiliary relay 100 to 110 0 C 148 to 230 F Defines the room temperature setpoint to switch auxiliary relay SHy Differentia...

Страница 17: ...tion for temperature alarm of con denser nP no probe P1 thermostat probe P2 evaporator probe P3 configurable probe P4 probe on Hot Key plug AL2 Low temperature alarm of condenser 100 to 150 C 148 to 302 F When this temperature is reached the LA2 alarm is sig naled possibly after the Ad2 delay AU2 High temperature alarm of condenser 100 to 150 C 148 to 302 F When this temperature is reached the HA2...

Страница 18: ...tion dEF activation of a defrost cycle ES energy saving AUS auxiliary relay activation with oA1 AUS Htr kind of action inversion cooling heating FAn fan HdF Holiday defrost enable only with RTC onF to switch the controller OFF did With i2F EAL or i2F bAL digital input alarm delay 18 20 0 to 255 min Delay between the detection of the external alarm condi tion and its signaling With i2F PAL time for...

Страница 19: ...ost cycles during workdays e g When Ld2 12 4 the second defrost starts at 12 40 during workdays Sd1 to Sd6 Holiday defrost start 0 to 23 hr 50 min These parameters set the beginning of the 6 programma ble defrost cycles on holidays e g When Sd2 3 4 the second defrost starts at 3 40 on holidays NOTE To disable a defrost cycle set it to not used e g If Ld6 not used the sixth defrost cycle is disable...

Страница 20: ...n 8 4 Door Switch Input i1F or i2F dor This input signals the door status and the corre sponding relay output status through the Odc param eter no Fan normal any change CPr F_C Compressor OFF Since the door is opened after the delay time set through the parameter doA the door alarm is enabled the display shows the message dA and the regulation restarts is rtr yES The alarm stops as soon as the ext...

Страница 21: ...ion i2F onF Switches the controller ON and OFF 8 11 Digital Inputs Polarity The digital input polarity depends on the i1P and i2P parameters i1P or i2P CL the input is activated by closing the contact i1P or i2P oP the input is activated by opening the contact ...

Страница 22: ...e controller to a monitoring system MODBUS RTU compatible such as the X WEB500 3000 300 10 X REP Output Optional Optionally an X REP can be connected to the controller through the dedicated connector To connect the X REP to the controller the fol lowing connectors must be used CAB 51F 1m CAB 52F 2m and CAB 55F 5m Figure 10 1 X REP Output ...

Страница 23: ...s verify that the power sup ply complies with the controller s requirements Sep arate the probe cables from the power supply cables from the outputs and the power connections Do not exceed the maximum current allowed on each relay in case of heavier loads use a suitable external relay 12 1 Probe Connection The probes should be mounted with the bulb up wards to prevent damages due to casual liquid ...

Страница 24: ...n recep tacle and then turn the Controller ON by pressing the on off button again for 5 seconds The normal temperature value will display to indicate the con troller is ON 3 Automatically the parameter list of the Hot Key is downloaded into the controller memory the doL message will display followed by End at the end of the data transfer phase if the controller is pro grammed correctly 4 After 10 ...

Страница 25: ... recovers only by switching the controller OFF and ON 14 3 Other Messages Message Cause Outputs P1 Room probe failure Compressor output acc to par Con and COF P2 Evaporator probe failure Defrost end is timed P3 Third probe failure Outputs unchanged P4 Fourth probe failure Outputs unchanged HA Maximum tempera ture alarm Outputs unchanged LA Minimum tempera ture alarm Outputs unchanged HA2 Condenser...

Страница 26: ...les Terminals 3 and 1 AUX Light Defrost N O 120 240 V 50 60 Hz 10A Resistive 30k cycles 120 240 V 50 60 Hz B300 Pilot Duty 6k cycles Terminals 7 and 1 AUX Light Defrost N C 120 240 V 50 60 Hz 10A Resistive 30k cycles 120 240 V 50 60 Hz B300 Pilot Duty 6k cycles Terminals 8 and 1 Data Storing On the non volatile memory EEPROM Internal Clock Back up 24 hours Kind of Action 1B Pollution Grade 2 Softw...

Страница 27: ...Other Messages Connections 21 16 Connections The X REP output is optional Figure 16 1 XR35CX Connections ...

Страница 28: ...vice wire the MODBUS cable to the RS485 terminals and connect the MODBUS shield to the pin 18 terminal Terminate the end of the MODBUS network at the last XR35CX device on the daisy chain with the MODBUS termination block P N 535 2711 or by connecting a 150 ohm resistor between the MODBUS terminals Refer to Appendix A Alternate MODBUS COM Wiring Method for E2 XR XM and XEV Devices Technical Bullet...

Страница 29: ... General Ser vices Serial tab to enable COM4 or an E2 Expansion COM Card P N 637 4871 to en able COM6 Connect the MODBUS network cable to the three terminal connector on the COM port you wish to as sign as MODBUS Reverse polarity of on RS485 cable from E2 to the device 18 2 COM Port Associations E2 Versions 4 2 and Above Figure 18 1 Location of E2 COM Ports E2 versions 3 xx and below E2 PIB COM PO...

Страница 30: ...derneath the COM port connection field which pertain to the way the device communicates Baud Default setting is 19 2k The baud rate set ting should be set to match the baud rate of the de vice 9600 All devices connected to the same COM port should be set to the same baud rate Data Size Leave this field at the default value 8 Parity Leave this field at the default value None Stop Bits Leave this fi...

Страница 31: ...tup menu then press Network Sum mary Figure 18 8 Locate the devices you set up and look at each device s status in the Status field You will see one of the following messages Online The device is communicating normally Offline The device is not communicating has not been commissioned is not functional or is not pow ered up Verify the device is powered up wired cor rectly and has the proper network...

Страница 32: ...on use the MODBUS termination block P N 535 2711 for termination that can be wired to the end of the cable segment using the three pin connector Wire the two signal wires to the out side terminals and connect the shield to pin 18 keep ing the exposed shield wire length as short as possible 3 inches ideal maximum length Shielded Yes Conductor Type Twisted Pair Gauge 18 24 AWG Capacitance between si...

Страница 33: ...uration 0 0 to 24 0 hr 0 0 Pr2 CCS Setpoint for continuous cycle 100 to 150 0 C 67 to 302 F 3 Pr2 Con Compressor ON time with faulty probe 0 to 255 min 15 Pr2 CoF Compressor OFF time with faulty probe 0 to 255 min 30 Pr2 CH Kind of action CL Ht CL Pr1 CF Temperature measurement unit C to F C Pr2 rES Resolution in integer dE decimal point dE Pr1 Lod Probe displayed P1 P2 P1 Pr2 Red2 X REP display P...

Страница 34: ...larm of condenser nP P1 P2 P3 P4 P4 Pr2 AL2 Condenser for low temperature alarm 100 to 150 C 67 to 302 F 40 Pr2 AU2 Condenser for high temperature alarm 100 to 50 C 67 to 302 F 110 Pr2 AH2 Differ for condenser temperature alarm recovery 0 1 C to 25 5 C 1 to 45 F 5 Pr2 Ad2 Condenser temperature alarm delay 0 to 254 min 255 not used 15 Pr2 dA2 Delay of condenser temperature alarm at start up 0 0 to ...

Страница 35: ... 2nd workdays defrost start 0 to 23 hr 50 min not used 13 0 Pr1 Ld3 3rd workdays defrost start 0 to 23 hr 50 min not used 21 0 Pr1 Ld4 4th workdays defrost start 0 to 23 hr 50 min not used not used Pr1 Ld5 5th workdays defrost start 0 to 23 hr 50 min not used not used Pr1 Ld6 6th workdays defrost start 0 to 23 hr 50 min not used not used Pr1 Sd1 1st holiday defrost start 0 to 23 hr 50 min not used...

Страница 36: ... 1203 Rev 3 03 FEB 2015 dP4 Fourth probe display Pr1 rSE Real set actual set Pr2 rEL Software release 2 6 Pr2 Ptb Map code Pr2 Label Name Range Value Level Table 19 1 Default Setting Values 2 Only for XR35CX with X REP output ...

Страница 37: ...jumpers in the UP position for E2 Standard and terminated with a 150 ohm resistor at the other end of the network segment 150 ohms between the two communication wires Recommended For reliable communication on some installations it may be necessary to connect a 100 ohm resistor between the XR XM or XEV device s previously identified ground terminal and earth ground Some E2 MODBUS COM Ports Can Supp...

Страница 38: ...32 XR35CX I O Manual 026 1203 Rev 3 03 FEB 2015 Figure A 1 MODBUS Com Wiring Diagram ...

Страница 39: ......

Страница 40: ...d or its affiliates collectively Emerson reserves the right to modify the designs or specifications of such products at any time without notice Emerson does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any product remains solely with the purchaser and end user 026 1203 03 FEB 2015 Emerson is a trademark of ...

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