93
item Controller BL 1-04 /C
― Product manual
51-5
FSM: error in brake
activation
Cause:
Internal hardware error (brake activation control signals) of the safety module or
fieldbus activation module.
Measure:
Module presumably defective. If possible, replace with another module.
Cause:
Error in brake driver circuit section in the servo drive.
Measure:
Servo drive presumably defective. If possible, replace with another servo drive.
51-6
FSM: unequal serial number
Cause:
Serial number of currently inserted safety module is different from the stored
serial number.
Measure:
Error only occurs after replacement of the FSM 2.0 – MOV.
After module replacement: Module type not yet accepted. Accept currently
inserted FSM 2.0 –MOV. Check the parameterisation of the FSM 2.0 – MOV in
view of the application, since the modules have been replaced.
Group 52: FSM 2.0 STO
52-1
FSM: Diskrepanzzeit
abgelaufen
Cause:
Control ports STO-A and STO-B are not actuated simultaneously.
Measure:
Check discrepancy time.
Cause:
Control ports STO-A and STO-B are not wired in the same way.
Measure:
Check circuitry of the inputs.
Cause:
Upper and lower switch supply not simultaneously activated (discrepancy time
exceeded)
▪ Error in control / external circuitry of safety module.
▪ Error in safety module.
Measure:
▪ Check circuitry of the safety module – are the inputs STO-A and STO-B switched
off on two channels and simultaneously?
▪ Replace safety module if you suspect it is defective
52-2
FSM: STOA/STOB deacti
-
vated while power output
stage enabled
Cause:
Failure of driver supply voltage with active PWM. Measure:
The safe status was requested with power output stage enabled. Check integra
-
tion into the safety-orientated wiring.
