Service functions and error messages
Page 128
Error message
Meaning of the error message
Measures
Main
index
Sub index
with active PWM activation
Action:
The safe status was requested with power output
stage enabled. Check integration into the safety-
orientated interface.
3
FSM: Rotational speed limits in basic
device overlap
Cause:
Basic device reports error if the currently
requested direction of movement is not possible
because the safety module has blocked the
setpoint value in this direction.
Error may occur in connection with the SSFx safe
speed functions if an asymmetrical speed
window is used where one limit is set to zero. In
this case, the error occurs when the basic device
moves in the blocked direction in the Positioning
mode.
Action:
Check application and change if necessary.
53
0
USF0: Safety condition violated
Cause:
Violation of monitored speed limits of the SSF0
in operation / when USF0 / SSF0 requested.
Action:
Check when the violation of the safety condition
occurs:
a)
During dynamic braking to safe
rotational speed.
b)
After the drive has reached the safe
speed.
With a) Check of braking ramp – record
measuring data - can the drive follow the ramp?
Change parameters for the slowdown ramp or
start time / delay times for monitoring.
With b) Check how far the current speed is from
the monitored limit speed; increase distance if
necessary (parameter in safety module) or
correct speed specified by controller.
1
USF1: Safety condition violated
Cause:
Violation of monitored speed limits of the SSF1
in operation / when USF1 / SSF1 requested.
