Emerson Copeland XC643 Application Engineering Bulletin
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Emerson Copeland XC643 Application Engineering Bulletin

Closed loop digital controller
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AE8-1386 R1
Safety
Safety Instructions .................................................... 2
Safety Icon Explanation ............................................ 2
Fire, or Injury to Persons ........................................... 3
Safety Statements .................................................... 3
Overview .................................................................. 4
Product Specifications .............................................. 4
Components ............................................................. 5
Wiring & Electrical Connections ................................ 6
Probes Connection ................................................... 6
Probe Wiring ............................................................. 6
Mounting & Installation .............................................. 8
Controller Display...................................................... 9
Controller Startup ..................................................... 10
First Installation ...................................................... 10
How to Set the Kind of Refrigerant ......................... 10
How to Set the Kind of Probes ............................... 11
Programming Procedure ........................................ 11
Probe Errors .......................................................... 11
© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
Application Engineering
B U L L E T I N
Application Guidelines for the
Emerson Closed Loop Digital Controller (XC643)

Table of Contents

How to See and Modify the Set Points ..................... 11
How to Modify the Set Point of Compressors
and/or Fans ......................................................... 12
The Info Menu ......................................................... 12
How to Enter the "Pr1" Parameter List ..................... 12
How to Change Parameter Values .......................... 12
Keyboard Locking.................................................... 13
Parameters ............................................................. 13
Compressor Regulation ........................................... 13
Digital Compressor Regulation ................................ 14
Fan Regulation ........................................................ 15
Commissioning the XC643CX ................................. 17
Commissioning the XC643 in the E2 ..................... 17-21
1
October 2013

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  • Page 1: Table Of Contents

    B U L L E T I N AE8-1386 R1 October 2013 Application Guidelines for the Emerson Closed Loop Digital Controller (XC643) Table of Contents Safety Safety Instructions ............ 2 How to See and Modify the Set Points ..... 11 Safety Icon Explanation ..........

  • Page 2: Safety Instructions

    NOTICE NOTICE is used to address practices not related to personal injury. CAUTION, without the safety alert symbol, is used to address practices CAUTION not related to personal injury. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 3: Instruction Pertaining To Risk Of Electrical Shock, Fire, Or Injury To Persons

    • Refrigerant compressors must be employed only for their intended use. • install, commission and maintain this equipment. • • All valid standards and codes for installing, servicing, and maintaining electrical and refrigeration equipment must be observed. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 4: Introduction

    In order to achieve these objectives, ™ The XC643CX is designed to manage one Copeland Emerson Climate Technologies has developed the digital compressor on a single-compressor condensing ™ ™ Copeland Discus Digital...

  • Page 5: Components

    14 and 6 pins. These cable harnesses must be used. PP30 0 to 30 bar (0 to 435 psig) discharge, female Note: Alternative pressure transducers may be used. Refer to Table 7. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 6: Installation And Controller Operating Instructions

    Pb1 is suction; Pb2 is condenser. Digital Line O Fan2 Fan1 Comp2 Comp 15 17 19 16 18 20 Hot Key/TTL 2 4 6 8 10 Supply 40mA Figure 4 - XC643 Module Connections © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.
  • Page 7 4.5Vdc) dEU= Pr5 Suction 5 (control); 4(+); 10 (gnd) 2 4 6 8 10 Condenser 7 (control); 4(+); 10 (gnd) § 40mA Figure 4c - Wiring for Ratiometric Pressure Transducers © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 8: Systems With Compressor Pumpdown Cycle

    75 PSID while the Copeland Discus must have a 45 PSID to operate correctly. PANEL BRACKET (PUSH TO RELEASE) •3.1” •Front •2.6” •Back •Side Figure 5 - XC643 Dimensions and Mounting © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 9: Controller Display

    Fan 1 is waiting to start (flash once per second) Fan 2 on Flashing Fan 2 is waiting to start (flash once per second) The digital solenoid valve coil is energized © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 10: Controller Startup

    4. Use “UP” or “DOWN” to change the refrigerant among the following: The controller has been programmed with several refrigerants. r22(0) - 134(1) - 404(2) - 407A(3) - 407C(4) - 410(5) - 507(6) The pre-set refrigerant is: R-404A. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 11: How To Set The Kind Of Probes

    Suction Transducer 800-2200 PT5-07M (802 350) PP11 (939-0007-00) Discharge Transducer 800-2500 PT5-18M (802 351) PP30 (939-0008-00) Sensor Type Ratiometric pressure 4-20 mA pressure 4-20 mA pressure PA04 PA20 FA04 FA20 © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 12: And/Or Fans

    1. Hold pressed the SET and DOWN key for 3s. NOTE: the new programming is stored even when the procedure is exited by waiting the time-out. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 13: Keyboard Locking

    17 is the common line for all the relay outputs and for the Main voltage DGS Cp2 FAN1 FAN2 TRIAC. Valve 230V or 120V Triac is internal to the XC643CX controller. Figure 7 - Relays in XC643 © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 14: Digital Compressor Regulation

    “don” delay time. d. When only the digital compressor remains on, at the end of the doF time the digital compressor is shut down too. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 15: Fan Regulation

    “End” 3. Push “SET” key and the End will stop flashing. 4. Turn OFF the controller remove the Hot Key, then turn it ON again. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 16: Parameter Default Values And Descriptions

    Maximum set point (compressors) see Table 6 (depending on refrigerant) Minimum set point (fan) see Table 6 (depending on refrigerant) Maximum set point (fan) see Table 6 (depending on refrigerant) © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.

  • Page 17: Commissioning The Xc643Cx

    From the main menu, press 7, 7, 2. Go to the C3:ECT tab. Enter the number of XC643 modules that will be connected to the E2. Press the to back out and save your changes. © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.
  • Page 18 Press Alt + N to enter the Network Summary screen. Select the module to commission, press F4: Commission. Enter the address corresponding to the device. Press to save changes. Press the to access the Main Menu Select 5. Configured Applications © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.
  • Page 19 From the Configured Applications menu select 400. XC643CX for the Closed Loop Digital Controller application Press F5: Setup to enter the Setup screen Setup Screens You can modify the Suction and Discharge setpoints from the C2: Analog tab © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.
  • Page 20 HSE = High limit of compressor setpoint (SETC) Pb = Proportional band zone width for fan regulation LSF = Low limit of fan setpoint (SETF) HSF = High limit of fan setpoint (SETF) © 2013 Emerson Climate Technologies, Inc. Printed in the U.S.A.
  • Page 21 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. Emerson Climate Technologies, Inc. reserves the right to modify the designs or specifications of such products at any time without notice.

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