Rockwell Automation 1302 575v AC Drive - Canada Only - Manual (Page 79)

Chapter
9
9–1
Publication 1302-5.0 — January, 1998
Troubleshooting
!
ATTENTION: Only qualified personnel familiar with
the 1302 Drive and associated machinery should perform
troubleshooting or maintenance functions on the Drive.
Failure to comply may result in personal injury and/or
equipment damage.
The 1302 Drive is monitored by internal diagnostics. If a fault
occurs, the Drive displays a two-digit fault code to identify the
problem. A fault causes the Drive to coast to rest if it is running or
prevents the Drive from starting if it is stopped. The fault code is
also entered into the error log.
This chapter defines the fault codes and suggests actions to correct
problems. It also describes how to access and clear the error log.
Note: Refer also to the F-26 (Auto-Restart Number of Attempts)
parameter description in Chapter 8. This describes the
Drive’s reaction to Drive faults if the auto-restart feature is
enabled (F-26 p 0).
Important: Before servicing the Drive, verify that the DC bus
capacitors have discharged as described in the following paragraph
Use an isolated multimeter to measure the DC bus voltage and to
make resistance checks. Note that dedicated troubleshooting test
points are not provided.
!
ATTENTION: DC bus capacitors retain hazardous
voltages after input power has been disconnected.
Disconnect and lock out power to the Drive and wait five
(5) minutes for the DC bus capacitors to discharge.
Failure to disconnect power could result in death or
serious injury. Verify bus voltages using the procedure in
the following paragraph before beginning any checks.
The 1302 Drive’s DC bus capacitors retain hazardous voltages after
input power has been disconnected. Perform the following steps
before touching any internal component
s:
Step 1. Turn off, lock out, and tag input power to the Drive. Wait
five minutes.
Step 2. Remove the Drive’s cover.
Step 3. Verify that there is no voltage at the Drive’s input power
terminals.
Introduction
Verifying DC Bus Voltage