Installation manual

1 Publication 1394-IN002B-EN-P — February 2004
Chapter 4
Troubleshooting Status Indicators
Chapter Objectives
This chapter covers:
• Understanding How to Detect a Problem
• Troubleshooting System and Axis Module LEDs
• Troubleshooting the SERCOS Network Status LED
• Troubleshooting General System Problems
• Troubleshooting System and Axis Module Faults
• Troubleshooting General System Problems
For power up procedures and system integration with the
ControlLogix and SoftLogix SERCOS modules/PCI cards (see table
below) refer to the 1394 SERCOS interface Integration Manual
(publication 1394-IN024x-EN-P). Manuals are available electronically
(as a .pdf) or in hardcopy from www.theautomationbookstore.com.
Understanding How to
Detect a Problem
When a drive fault occurs, the LED on the front panel changes and a
fault message is transmitted to the position controller.
The majority of 1394 faults cause the Drive System OK contact to
open. If a drive fault occurs, you can reset the fault detection circuitry
by removing and reapplying logic power. However, if it is a hardware
fault, you need to correct the fault before restarting.
This material, along with the diagnostic/troubleshooting information
included with the position controller, will help you identify most
common system malfunctions and determine which module that
problem pertains to.
Interface ControlLogix Module SoftLogix PCI Card
SERCOS interface 1756-MxxSE 1784-PM16SE
IMPORTANT
You can also reset a fault condition using RSLogix
5000 software.