316 Rockwell Automation Publication 2198-UM002G-EN-P - February 2019
Chapter 9 Kinetix 5700 Safe Torque-off Function
Troubleshoot the Safe Torque-off Function
For hardwired STO fault code descriptions and possible solutions, see the
Kinetix 5700 Fault Codes.xlsx file attached to this publication. For more
information about the file, see Access the Attachments
on page 13.
Figure 143
illustrates when the safe torque-off mismatch is detected and
GuardStopInputFault is posted.
Figure 143 - System Operation when Safety Enable Inputs Mismatch Occurs
When one safety input is turned off, the second input must also be turned off,
otherwise a fault is asserted (see Figure 144
). The fault is asserted even if the
first safety input is turned on again, without the second input transitioning to
the ON state.
Safety Input S1
Safety Input S2
GuardFault
SafeTorqueOInhibit
Start Inhibited
GuardOKStatus
OK
GuardGateDriveOutputStatus
Torque Disabled
Stop Requested
GuardStopInputStatus
GuardStopRequestStatus
GuardStopInputFault
No Fault
1 Second Descrepancy Limit
No Fault Faulted
Not OK
Faulted
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