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Summary of Contents for Copeland XR35CX
- Page 1 USER MANUAL XR35CX Digital Controller For Medium Temperature Refrigeration Applications...
- Page 2 Copeland 1065 Big Shanty Road NW, Suite 100 Kennesaw, GA 30144 USA 770-425-2724 • 1-800-829-2724 www.copeland.com Email: ColdChain.TechnicalServices@copeland.com...
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Page 3: Table Of Contents
6.6 How to Assign a MODBUS Address ..............................6 6.7 How to Lock the Keyboard.................................6 6.8 To Unlock the Keyboard ..................................6 6.9 The Continuous Cycle ..................................6 6.10 The ON/OFF Function ..................................6 7 PARAMETERS ..............................7 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. - Page 4 19.3.2 Add and Connect the Device ..................................... 24 19.4 Wiring Types......................................25 19.5 MODBUS Termination Blocks ..............................25 20 DEFAULT SETTING VALUES........................26 APPENDIX A - ALTERNATE MODBUS COM WIRING METHOD FOR E2, XR, XM, AND XEV DEVICES..............................30 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
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Page 5: Introduction
Fit the probe where it is not accessible by the end user. The controller must not be opened. WARNING • In case of failure or faulty operation, send the controller back to the distributor or to Copeland (see address) with a detailed description of the fault. •... -
Page 6: Controlling Loads
With oA1 = HES, the relay 1-7 operates to manage the night blind: the relay is energized when the energy saving cycle is activated, by digital input, frontal button or RTC (optional). 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 7: Front Panel Commands
Table 4-1 shows the keys that are found on the front panel of Each LED function is described in Table 4-2: the XR35CX controller and their corresponding functions: Table 4-2 - LEDs Table 4-1 - XR35CX Front Panel Keys and Functions Mode Function Function Compressor enabled To display the target setpoint;... -
Page 8: Max And Min Temperature Memorization
Press and hold the SET key for more than 3 seconds while the maximum or minimum temperature is displayed. (rSt message will be displayed) To confirm the operation, the rSt message starts blinking and the normal temperature will be displayed. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 9: Main Functions
In the Hidden Menu, when a parameter is present in First without pressing a key. Level, the decimal point is visible. The set value is stored even when the time- NOTE out expires and ends the procedure. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 10: How To Assign A Modbus Address
To switch the controller ON, push again the ON/OFF key. Loads connected to the normally closed contacts of the relays are always supplied and under WARNING voltage, even if the controller is in stand-by mode. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 11: Parameters
Compressor OFF time with faulty probe Time during which the compressor is OFF in case of faulty thermostat probe. With CoF = 0, compressor is always active. Type of action CL = cooling; Ht = heating 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. - Page 12 This is useful when different defrost start times are necessary to avoid overloading the plant. (rt = real temperature; it = temperature at defrost start; SEt = setpoint; Temperature displayed during defrost dEF = dEF label) 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
- Page 13 Time interval between the detection of an alarm condition and alarm signaling. (from 0.0 min to 23.5 hr) Exclusion of temperature alarm at start- Time interval between the detection of the temperature alarm condition after controller power ON and alarm signaling. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
- Page 14 = activation of a defrost cycle oP = the digital input is activated by opening the contact digital input polarity (18-19) CL = the digital input is activated by closing the contact 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
- Page 15 Sets the duration of the Energy Saving cycle on workdays. Energy Saving cycle start on holidays. (0 to 23 hr 50 min) Energy Saving cycle length on holidays (0 to 24 hr 00 min) 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
- Page 16 Third probe display (optional) Fourth probe display Shows the setpoint used during the energy saving cycle or during the continuous Real setpoint cycle. Software release For internal use only. Parameter table code Read only 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
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Page 17: Digital Inputs
If conditions are favorable for defrost, a defrost will be started. After the defrost is finished, the normal regulation will restart only if the digital input is disabled, otherwise the controller will wait until the MdF safety time is expired. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 18: Rs485 Serial Line (For Monitoring Systems)
Installation and Mounting Figure 11-1 - Installation and Mounting of XR35CX The XR35CX controller should be mounted on a vertical panel, in a 29 x 71 mm hole, and secured using the special bracket supplied. The temperature range allowed for correct operation is 0 to 60°C. Avoid places subject to strong vibrations, corrosive gases, excessive dirt, or humidity. -
Page 19: Electrical Connections
The Err message is displayed in case of an error or failure in programming. In this case, turn the unit OFF NOTE and then ON if you want to restart the download or remove the Hot Key to abort the operation. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 20: Alarm Signals
Alarms EA and CA (with i1F = bAL) recover as soon as the digital input is disabled. Alarm CA (with i1F = PAL) recovers only by switching the controller OFF and ON. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 21: Specifications
NTC probe: -40 to 110°C (-40 to 230°F) Measuring and Regulation Range PT1000 probe: -100 to 150°C (-148 to 302°F) Resolution 0.1°C or 1°C or 1 °F (selectable) Accuracy (ambient temp. 25°C) ±0.7°C ±1 digit 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 22: Connections
Connections Figure 16-1 - XR35CX Connections • The X-REP output is optional. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 23: Wiring Connection To Site Supervisor
Wiring Connection to Site Supervisor Figure 17-1 - Site Supervisor Wiring (120V Models) 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. - Page 24 Figure 17-2 - Site Supervisor Wiring (230V Models) 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
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Page 25: E2 Modbus Network Wiring
Do not connect the shield of the MODBUS network to the E2 PIB center terminal. Instead, use a 100 ohm 1/2 watt resistor to connect the MODBUS cable shield to earth ground. • At each XR35CX device, wire the MODBUS cable to the RS485 +/- terminals and connect the MODBUS shield to the pin 18 terminal. •... -
Page 26: Ect Modbus Networking To E2S
Figure 19-1 - Location of E2 COM Ports (E2 versions 3.xx and below) Connecting a XR35CX controller to an E2 requires the E2 to be version 2.84 or above. Contact Copeland for upgrade information if the controller is a version before 2.84. -
Page 27: Com Port Associations - E2 Versions 4.2 And Above
Data Size - Leave this field at the default value (8). • Parity - Leave this field at the default value (None). • Stop Bits - Leave this field at the default value (1). Press to save changes and exit. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. -
Page 28: Add And Connect The Device
E2. the list of MODBUS devices, choose the address number Log in to the E2 with Level 4 access. corresponding to the XR35CX address set up through the - Connected I/O Boards and Press ... -
Page 29: Wiring Types
Status field. You will see one of the Belden #88761 for plenum installations). following messages: For MODBUS network wiring of XR35CX controllers to E2, Online - The device is communicating normally. • Belden #8641 (P/N 135-8641) is the recommended wire type •... -
Page 30: Default Setting Values
Default Setting Values Table 20-1 - Default Setting Values ( Only for XR35CX with X-REP output) Label Name Range Value Level Setpoint LS to US Differential 0.1 to 25.5°C/ 1 to 255°F Minimum setpoint -100°C to SEt/-58°F to SEt -50.0 Maximum setpoint SEt to 110°C/ SEt to 230°F... - Page 31 Table 20-1 - Default Setting Values ( Only for XR35CX with X-REP output) Label Name Range Value Level Maximum duration for defrost 0 to 255 min Start defrost delay 0 to 99 min Displaying during defrost rt, it, SEt, dEF...
- Page 32 Table 20-1 - Default Setting Values ( Only for XR35CX with X-REP output) Label Name Range Value Level ALr = alarm, dEF = defrost, Lig = Light, AUS = AUX, onF = always ON, Fan= do not select it, db =...
- Page 33 Table 20-1 - Default Setting Values ( Only for XR35CX with X-REP output) Label Name Range Value Level 0 to 23 hr 50 min - not used not used workdays defrost start 0 to 23 hr 50 min - not used...
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Page 34: Appendix A - Alternate Modbus Com Wiring Method For E2, Xr, Xm, And Xev Devices
COM2 supports two network segments: one on connector RS485-1A, and the second on connector RS485-1B. For information on the maximum recommended number of XR, XM, and XEV devices for each network segment (load and bandwidth calculations), contact Copeland Technical Support at 770-425-2724. 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP. - Page 35 Figure A -1 - MODBUS Com Wiring Diagram 026-1203 R4 XR35CX I/O Manual ©2024 Copeland LP.
- Page 36 The contents of this publication are presented for informational purposes only and they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. Copeland reserves the right to modify the designs or specifications of such products at any time without notice.
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