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Error message
Meaning of the error message Measures
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3
SOS: Safety Condition Violated Cause:
Angle encoder analysis reports
“Motor running” (actual speed
exceeds limit).
Drive has rotated out of its position
since reaching the safe state.
Action:
Check the position tolerance for the
SOS monitoring and increase if
necessary, if this is permissible.
If the actual speed value is very
noisy when at rest: Check and if
necessary adjust expert parameters
for speed recording and detection of
idling.
4
SS1: Safety Condition Violated
Cause: Actual speed is outside of permitted
limits for too long.
Action:
Check when the violation of the safety
condition occurs:
a) During dynamic braking to zero.
c) After the drive has reached zero
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 a) If the option “Trigger basic
device quick stop” is activated:
Check of the basic device’s quick
stop ramp.
With b) Check whether the drive
continues to oscillate after reaching
the zero speed or remains at idle
and stable – increase monitoring
tolerance time if necessary.
With b) If the actual speed value is
very noisy when at rest: Check and
if necessary adjust expert
parameters for speed recording and
detection of standstill.
Product Manual „Servo drives ARS 2100 SE“
Version 5.0
