ITEM C 3-Series - Page 133

Service functions and error messages
Page 133
Error message
Meaning of the error message
Measures
Main
index
Sub index
Action:
 Identify interfering radiators in the
environment of the servo drive.
 Replace module or basic device.
 Please contact the Technical Support.
5 FSM: Fault in FSM break control Cause: Internal hardware error (brake activation control
signals) of the safety module or fieldbus
activation module.
Action: Module presumably defective. If possible,
replace with another module.
Cause: Error in brake driver circuit section in the basic
device.
Action: Basic device presumably defective. If possible,
replace with another basic device.
52 1 Safety function: Discrepancy time
overrun
Cause: Control ports STO-A and STO-B are not actuated
simultaneously.
Action: Check discrepancy time.
Cause: Control ports STO-A and STO-B are not wired in
the same way.
Action: Check circuitry of the inputs.
Cause: Upper and lower switch supply voltage not
simultaneously activated (discrepancy time
exceeded)
 Error in control / external circuitry of safety
module.
 Error in safety module.
Action:
 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
faulty.
2 Safety function: Failure of driver supply
with active PWM activation
Cause:
Failure of driver supply voltage with active PWM.
Action: The safe status was requested with
power output
stage enabled. Check integration into the safety-
orientated interface.