Carrier 19XRV Manuale Utente

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

ABBREVIATIONS AND EXPLANATIONS

. . . . . . . . . . 2

Required Publications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Getting Assistance from Rockwell Automation

. . . 2

IDENTIFYING DRIVE COMPONENTS

. . . . . . . . . . . . 2-5

Opening the VFD Access Door

. . . . . . . . . . . . . . . . . . . 3

Drive Assembly Catalog Number

. . . . . . . . . . . . . . . . . 3

Components and Physical Data

. . . . . . . . . . . . . . . . . . 3

START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Alternate Wire Lugs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Verify Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Configure the VFD

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Commissioning the Unit

. . . . . . . . . . . . . . . . . . . . . . . . . . 6

Check Internal Jumpers

. . . . . . . . . . . . . . . . . . . . . . . . . . 7

SERVICE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

Troubleshooting the Drive

. . . . . . . . . . . . . . . . . . . . . . . . 8

• ICVC ALERT CODES

• ICVC ALARM CODES

• TEST EQUIPMENT NEEDED TO TROUBLESHOOT

• VERIFYING THAT DC BUS CAPACITORS ARE

DISCHARGED

• HIGH TEMPERATURE ALARMS

• MAIN CONTROL BOARD (MCB) COMPONENTS
Checking Power Modules and Motor Input
with Input Power Off

. . . . . . . . . . . . . . . . . . . . . . . . . . 22

Servicing the Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

• REMOVING THE DRIVE

• RIGGING THE ENCLOSURE

• REPLACING THE GATEWAY (A-B20-750-20COMM

OPTION CARD)

• CHILL PLATE FAN AND INTERNAL FAN

REPLACEMENT

Parts Identification and Location

. . . . . . . . . . . . . . . . 26

APPENDIX A — WIRING SCHEMATICS

. . . . . . . 28-31

APPENDIX B — OPTIONAL BACNET

COMMUNICATIONS WIRING

. . . . . . . . . . . . . . . 32-38

INTRODUCTION

The Carrier VFD option Start-Up and Service Manual is in-

tended for trained and qualified service personnel, and is to be

used during start up, operation, and maintenance of Rockwell/

Allen-Bradley PF755L drive.

ABBREVIATIONS AND EXPLANATIONS

Frequently used abbreviations in this manual include:

Required Publications —

The Carrier VFD option

Start-Up and Service Manual must be used with the following

manuals:
• The latest version of the PowerFlex 750-Series AC

Drives manuals

• The latest revision of the Start-Up, Operation, and Main-

tenance Instructions for the 19XRV with PIC III Controls

Getting Assistance from Rockwell Automa-
tion —

Contact the local Rockwell Automation sales office

with any questions or problems relating to the products de-

scribed in this manual. For technical support on drives between

the hours of 7:00 am and 6:00 pm CST, M-F, call 1-262-512-

8176. For information about after-hours phone support and on-

site support call 1-800-800-0522.

Before calling, have the following information available

from the Allen-Bradley data nameplate located inside the en-

closure on the right wall. See Fig. 1.
• Allen-Bradley ID or CAT. NO.

• Carrier VFD Code

• Allen-Bradley serial number

IDENTIFYING DRIVE COMPONENTS

A chiller control schematic and a VFD schematic are in-

cluded in Appendix A.

CCM

— Chiller Control Module

— Direct Current

DPI

— Drive Peripheral Interface

ENET

— Ethernet

ICVC

— International Chiller Visual Controller

IGBT

— Insulated Gate Bipolar Transistor

I/O

— Inputs/Outputs

— Internet Protocol

IPWM

— Inverter Pulse Width Modulation

MCB

— Main Control Board

MOV

— Metal Oxide Varistor

— Protective Earthing Conductor

SIO

— Sensor Input/Output

STS

— Status

WARNING

DC bus capacitors retain hazardous voltages after input

power has been disconnected. After disconnecting input

power, wait five (5) minutes for the DC bus capacitors to

discharge and then check the voltage with a voltmeter rated

for the DC bus voltage to ensure the DC bus capacitors are

discharged before touching any internal components. Fail-

ure to observe this precaution could result in severe bodily

injury or loss of life.
An isolated multimeter will be needed to measure DC bus

voltage and to make resistance checks. The drive’s DC bus

capacitors retain hazardous voltages after input power has

been disconnected.

Fig. 1 — Allen Bradley Data Nameplate

A19-1830



711