Rockwell Automation 4100 ALEC AXIS LINK ENCODER CONVERTER - Manual (Page 45)

37 Publication 4100-5.3 - June 1999
Chapter
4
Fault Indication & Control Status
Chapter Objectives This chapter covers the ALEC operation status. There are three status
LEDs on the front panel of the ALEC. These LEDs provide
“at-a-glance” monitoring of the system. The three LEDs monitor
different aspects of the ALEC/AxisLink system. The LEDs are labeled:
AL, CPU OK, and Encoder OK. The following LEDs and status
conditions are covered in this chapter.
•
AL LED
•
CPU OK
•
Encoder LED
•
Fault Conditions
AL LED The AL LED indicates the current state of AxisLink.
Fault states are separated into three basic categories:
•
AxisLink Fault
•
AxisLink Failing
•
No Fault
Faults can be attributed to:
•
improper installation
•
improper ALEC switch configuration
•
faulty hardware (i.e. broken cable)
•
improper application
It is the responsibility of the user to make sure that the application is
safe. Understanding the capabilities of the ALEC can help you achieve
this goal.
The ALEC provides bicolor LED fault indication. The color and pattern
of these LEDs provide “at-a-glance” indication of the status of the
ALEC.
Although the ALEC is equipped with a Reset button, it is not a
recommended form of fault resolution. As the ALEC can be a
component of a larger configuration, pressing the Reset button can