Safe Stop 1 Fault - Allen-Bradley PowerFlex 755 User Manual

Safe Stop 1 Fault

The Safe Stop 1 (SS1) function detected a fault. The safe stop function records
the specific fault type in the Safe Stop Fault attribute. The SS1 Fault Type is
also recorded in P10 [SS1 Fault Type].
MSG instruction. The drive immediately disables torque, ignoring STO delay,
if an SS1 fault is detected. If the SS1 Fault Type is reported as 1 (no fault), the
SS1 fault was generated by the connected safety controller and reported to the
drive over the safety connection.
Table 73 - Safe Stop 1 Fault Type: MSG
Parameter Value
Service Code 0x0E
Class 0x5A
Instance 1
Attribute 0x11c
Data Type SINT
Table 74 - SS1 Fault Types
SS1 Fault
SS1 Fault Type Name
Type Value
1 No Fault
2 Config
3 Decel Rate
4 Maximum Time
101 Feedback Invalid
Rockwell Automation Publication 750-UM005A-EN-P - October 2018
Monitoring and Troubleshooting
Table 74 describes the parameters for an
Description
Get attribute single
Safety stop functions
Drive-module safety instance
SS1 fault type
Short integer
Description
No Fault is present
The drive-based SS1 function has been requested when it has
been configured as 'not used' .
Applies only when SS1 is configured for Monitored SS1 mode.
The SS1 function has detected that the feedback speed is not
decelerating as fast as expected.
Applies only when SS1 is configured for Monitored SS1 mode.
The SS1 function has detected that the device has not reached
standstill speed within the maximum stopping time.
The Monitored SS1 function was requested when the
associated safety feedback is not valid.
Chapter 8
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