15 Appendix
58-6
FSM: error in cross
comparison for
processors 1 - 2
Cause:
Timeout during cross-comparison (no data) or
cross-comparison faulty (data for μC1 and μC2
are different).
– Error in cross-comparison for digital I/O.
– Error in cross-comparison for analogue input.
– Error in cross-comparison for internal operating
voltage measurement (5 V, 3.3 V, 24 V) and
reference voltage (2.5 V).
– Error in cross-comparison for SIN/COS angle
encoder analogue values.
– Error in cross-comparison for programme
sequence monitoring.
– Error in cross-comparison for interrupt counter.
– Error in cross-comparison for input map.
– Error in cross-comparison for violation of safety
conditions.
– Error in cross-comparison for temperature
measurement.
Measure:
This is an internal error in the module that should
not occur during operation.
- Check the operating conditions (temperature, air
humidity, condensation).
- Check the EMC wiring as specified and shield
design; are there any external interference
sources?
- Safety module may be defective – is error
eliminated after replacing the module?
- Check whether a new firmware for the servo
drive or a new version of the safety module is
available.
Group 59: FSM: Internal Error
59-1
FSM: failsafe supply /
safe pulse inhibitor
Cause:
Internal error in module in failsafe supply circuit or
in the driver supply for the upper and lower
switches.
Measure:
Module defective, replace.
59-2
FSM: error external
power supply
Cause:
- Reference voltage 2.5 V outside tolerance.
- Logic supply overv24 V detected.
Measure:
Module defective, replace.
59-3
FSM: error internal
power supply
Cause:
Voltage (internal 3.3 V, 5 V, ADU reference)
outside the permissible range.
Measure:
Module defective, replace.
Product manual BL 4000-C
Page 292 of 298
