15 Appendix
54-6
SBC: brake not
released for > 24 hrs
Cause:
Error occurs when SBC is requested and the
brake has not been released by the servo drive in
the last 24 hours.
Measure:
- If the brake is actuated via the brake drivers in
the servo drive [X6]: The brake must be
energised at least once within 24 hours before the
SBC request because the circuit breaker check
can only be performed when the brake is
switched on (energised).
- Only if brake control takes place via DOUT4x
and an external brake controller: Deactivate 24 hr
monitoring in the SBC parameters if the external
brake controller allows this.
54-7
SOS: SOS requested >
24 hrs
Cause:
If SOS is requested for more than 24 hours, the
error is triggered.
Measure:
Terminate SOS and move axle at least once
during this time.
Group 55: FSM: Actual value evaluation 1
55-0
FSM: no actual speed /
position value available
or standstill for > 24 hrs
Cause:
- Subsequent error when a position encoder fails.
- Safety function SSF, SS1, SS2 or SOS
requested and actual rotational speed value is not
valid.
Measure:
Check the function of the position encoder(s)
(see following error).
55-1
FSM: SINCOS encoder
[X2B] - signal error
Cause:
- Vector length sin²+cos² is outside the
permissible range.
- The amplitude of one of the two signals is
outside the permissible range.
- Offset between analogue and digital signal is
greater than 1 quadrant.
Measure:
- Error may occur with SIN/COS and
HIPERFACE encoders.
- Check the position encoder.
- Check the connection wiring (broken wire, short
between two signals or signal / shield).
- Check the supply voltage for the position
encoder.
- Check the motor cable / shield connection on
motor and drive side. EMC malfunctions may
trigger the error.
Product manual BL 4000-C
Page 286 of 298
