Troubleshoot Network Safe Torque-Off; Reset Safe Torque-Off Fault Diagram - Allen-Bradley PowerFlex 527 User Manual

Chapter 6 Network Control of Safe Torque-Off
Exception Code on Drive Display
SAFE FLT S01 - SAFETY CORE
INTERNAL
FLT AXIS FLT M28 - SAFETY COMM
SAFE FLT S03 - SAFE TORQUE OFF
(STO Fault Type = 3)
SAFE FLT S03 - SAFE TORQUE OFF
(STO Fault Type = 104)
INIT FLT M14 - INVALID SAFETY
FIRMWARE
(1) Displayed in the LCD display as Module Fault.
106
An STO Fault sets the Axis.SafetyFault tag. After the STO Fault is reset, a MAFR
IMPORTANT
command must be issued by the motion controller to clear the Axis.SafetyFault
tag to enable motion.
See Reset Safe Torque-Off Fault Diagram on page 106
the PowerFlex 527 STO Fault reset functionality.

Reset Safe Torque-Off Fault Diagram

Drv:SO.SafeTorqueOff
Drv:SO.ResetRequest
Drv:SI.TorqueDisabled
Drv:SI.SafetyFault
DrvSI:ResetRequired
Axis.SafetyFault
Axis.SafeTorqueOffActiveInhibit
Axis.SafetyFaultStatus
Axis.SafetyResetRequestStatus
Axis.SafetyResetRequiredStatus
Axis.SafeTorqueOffActiveStatus
Axis.SafeTorqueOffDisabledStatus
Axis.SafeTorqueOffFault

Troubleshoot Network Safe Torque-Off

PowerFlex 527 Drive Troubleshooting
Fault Message
Logix Designer
(1)
CPUWatchDogFault
SafetyModuleCommunication
(1)
ErrorFault
(2)
SafeTorqueOffFault
(2)
SafeTorqueOffFault
(2)
InvalidSafeyFirmwareFault
Rockwell Automation Publication 520-UM002B-EN-E - December 2017
Disable Torque
Torque Permitted Torque Disabled
No Fault
Reset Not Required
No Fault Faulted (cleared by MAFR)
Start Permitted Start Inhibited
No Fault
SO.ResetRequest
Reset Not Required Reset Required
Permit Torque Disable Torque
Torque Permitted Torque Disabled
No Fault
Problem
Drive safety diagnostic detected
internal STO design failure.
Drive safety diagnostic detected
internal STO design failure.
Drive safety diagnostic detected
internal STO design failure
Hardwired input energized in
network mode.
The safety firmware is not compatible
with the drive firmware, or the main
safety firmware is missing.
for an understanding of
Permit Torque
Faulted
Possible Solutions
• Cycle power.
• Return drive for repair if fault continues.
• Cycle power.
• Return drive for repair if fault continues.
• Cycle power.
• Execute STO function.
• Return drive for repair if fault continues.
• Remove power.
• Remove any connection to hardwired
safety inputs.
• Restore power.
• Cycle power.
• Upgrade drive firmware.
• Return drive for repair if fault continues.