Maintenance
Troubleshooting
QuickStick HT User Manual
299
Rockwell Automation Publication MMI-UM007F-EN-P - September 2020
2
Guard Stop Input Fault
Definition
Monitors the safe torque-off (STO) function inputs.
Set condition
Safe torque-off mismatch is detected when safety inputs are in dif-
ferent state for more than one second.
Clear condition
Turn both inputs to the OFF-state for more than 1 second. After
the fault reset requirement is satisfied, issue a reset/resume com-
mand.
User action
•
Verify safety wiring and connections:
•
Wire terminations at safe torque-off (STO) connector.
•
Cable/header not seated correctly.
•
+24V power.
•
Check state of safety inputs.
•
Reset error and run proof test.
•
If error persists, return the unit.
Motor Suspend Fault
Yes
Digital Input Status
0-3 Digital Input
n
(four digital inputs)
Definition
Status of the digital input pin.
Set condition
Input is held HIGH (+24V).
Clear condition
Input is held LOW (0V) or not connected.
User action
Action is user-configurable.
Motor Suspend Fault
No
Table 8-8: QuickStick HT MMI_path_qs_ht_faults_status Motor Faults (Continued)