Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD - Manual (Page 85)

Chapter
7
7Ć1
Troubleshooting
After you have read all previous chapters, this chapter can help you:
safely isolate and correct problems in your press system
interpret diagnostic messages generated by your clutch/brake controller
use the module indicators in chassis A and B while troubleshooting your
press system
This chapter explains troubleshooting techniques and refers to previous
chapters. We recommend that you read the entire manual and all technical
documentation provided by the press manufacturer before troubleshooting
any problem with your press system.
We also recommend that you adhere to the safety requirements detailed in
local code and laws and in the following publications:
OSHA Regulations, Title 29-Labor, Chapter XVII, Section 1910.217,
Mechanical Power Presses
ANSI B11.1, American National Standard for Machine Tools,
Mechanical Power Presses, Construction, Care, and Use
NFPA No. 79, Electrical Standard for Metal working Machine Tools
Familiarity with this documentation makes your troubleshooting not only
safer, but easier as well.
Use these figures and tables when troubleshooting with LED indicators
Reference Description
Figure 7.1 Location of LED indicators
Figure 7.A How to read the PM Module's ACTIVE indicator
Figure 7.B How to read the PM Module's I/O RACK FAULT and
CBM FAULT indiators
Figure 7.2 How to troubleshoot with LED indicators
Chapter Objectives
Troubleshooting Considerations
and Requirements
Troubleshooting with LED's