QSHT 5700 Inverter Safe Torque-off Function
Introduction
268 MagneMotion
Rockwell Automation Publication MMI-UM007F-EN-P - September 2020
Block n
Safety Core
Faults
0Safety Core
Fault
QSHT 5700 Inverter safety
diagnostic detected an internal
STO failure.
• Cycle control power.
• If error persists, remove the inverter
from service immediately and return to
Rockwell Automation.
1Safe
Torque-off
Fault
QSHT 5700 Inverter safety
diagnostic detected internal
STO hardware failure.
• Cycle control power.
• Execute STO function.
• If error persists, remove the inverter
from service immediately and return to
Rockwell Automation.
2 Guard Stop
Input Fault
Safe torque-off function input
discrepancy. System does not
allow motion.
Safe torque-off input discrep-
ancy is detected when safety
inputs are in a different state for
more than 1.0 second.
• Verify safety wiring and connections:
• Wire terminations at STO connector.
• Cable/header not seated correctly.
• +24V power within specified limits.
• Check state of safety inputs.
• Reset error and run proof test.
• If error persists, remove the inverter
from service immediately and return to
Rockwell Automation.
3-7 Reserved — —
Digital
Input Status
0 IN 1 Digital Input Status of the input
pin. Action is user-configurable
Determined by user.
1 IN 2 Digital Input Status of the input
pin. Action is user-configurable
Determined by user.
2 IN 3 Digital Input Status of the input
pin. Action is user-configurable
Determined by user.
3 IN 4 Digital Input Status of the input
pin. Action is user-configurable
Determined by user.
4-7 Reserved — —
Table 7-2: Safety-Related Axis Tags – MMI_path_qs_ht_faults_status (Continued)
Name Bit Fault Definition Action
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