Allen-Bradley PowerFlex 527, User Manual

Page: 106 / 176

106 Rockwell Automation Publication 520-UM002B-EN-E - December 2017
Chapter 6 Network Control of Safe Torque-Off
See Reset Safe Torque-Off Fault Diagram on page 106 for an understanding of
the PowerFlex 527 STO Fault reset functionality.
Reset Safe Torque-Off Fault Diagram
Troubleshoot Network Safe Torque-Off
PowerFlex 527 Drive Troubleshooting
IMPORTANT
An STO Fault sets the Axis.SafetyFault tag. After the STO Fault is reset, a MAFR
command must be issued by the motion controller to clear the Axis.SafetyFault
tag to enable motion.
Drv:SO.SafeTorqueOff
Disable Torque Permit Torque
Faulted
SO.ResetRequest
No Fault
No Fault
No Fault
Faulted (cleared by MAFR)
No Fault
Start Inhibited
Reset Not Required
Reset Not Required Reset Required
Torque Disabled
Start Permitted
Torque Permitted
Torque Disabled
Torque Permitted
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
Permit Torque Disable Torque
Exception Code on Drive Display Fault Message
Logix Designer Problem Possible Solutions
SAFE FLT S01 - SAFETY CORE
INTERNAL CPUWatchDogFault
(1)
Drive safety diagnostic detected
internal STO design failure. • Cycle power.
• Return drive for repair if fault continues.
FLT AXIS FLT M28 - SAFETY COMM SafetyModuleCommunication
ErrorFault
(1)
Drive safety diagnostic detected
internal STO design failure. • Cycle power.
• Return drive for repair if fault continues.
SAFE FLT S03 - SAFE TORQUE OFF
(STO Fault Type = 3) SafeTorqueOffFault
(2)
Drive safety diagnostic detected
internal STO design failure • Cycle power.
• Execute STO function.
• Return drive for repair if fault continues.
SAFE FLT S03 - SAFE TORQUE OFF
(STO Fault Type = 104) SafeTorqueOffFault
(2)
Hardwired input energized in
network mode. • Remove power.
• Remove any connection to hardwired
safety inputs.
• Restore power.
INIT FLT M14 - INVALID SAFETY
FIRMWARE InvalidSafeyFirmwareFault
(2)
The safety firmware is not compatible
with the drive firmware, or the main
safety firmware is missing. • Cycle power.
• Upgrade drive firmware.
• Return drive for repair if fault continues.
(1) Displayed in the LCD display as Module Fault.