Rockwell Automation Publication 2094-RM002B-EN-P - May 2012 33
Chapter 5
Troubleshooting the Safe Torque-off Drive
Introduction
This chapter provides troubleshooting tables for diagnosing fault conditions
associated with the safe torque-off safety functions.
Nonrecoverable Faults
In addition to the recoverable faults described in this chapter, the drive also
generates nonrecoverable faults when a problem with the drive hardware is
detected. These faults are Safe State faults. If a Safe State fault occurs, all safety
control outputs are set to their safe state.
To clear a nonrecoverable fault, cycle power. If the nonrecoverable fault persists,
the drive may need to be replaced.
Fault Recovery
If the fault is no longer present, you can clear the fault condition with a successful
SO Reset and a Motion Axis Fault Reset (MAFR) via your RSLogix 5000
application program, except in the case of an Internal Hdwr fault or MP Out
fault. An Internal Hdwr fault or MP Out fault is cleared at power down.
Topic Page
Nonrecoverable Faults 33
Fault Recovery 33
Input and Output Faults 34
Fault Codes and Descriptions 34
Status Attributes 35
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