Introduction
Introduction - v
Electrical
Troubleshooting Guide
IRB6400 M94A
THIS MANUAL
This manual provides a guide to electrically troubleshoot the IRB 6400
M94A controller. It was written for trained maintenance personnel with
experience in electrical systems. The manual does not in any way
assume to take the place of the maintenance course offered by ABB
Flexible Automation.
It is assumed that the user of this manual has a working knowledge of
the system operations and basic programming skills.
If a problem occurs:
1) Check for errors. This is done by use of the error log which is
explained in Appendix A (Error Messages).
2) Go to the appropriate chapter and troubleshoot the problem described.
(Refer to Chapter Descriptions on the next page for the proper
chapter.)
3) If no error code is present, then use the chapter called Computer to
diagnose the problem using the system LED's.
4) If a problem is in the Servo System, be sure to eliminate mechanical
binding as a possible cause first.
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