Error description 237-1801A
Error message
1801A Non-clearable positioning error %1, ES %4
Cause of error
A positioning error that cannot be cleared (excessive servo lag)
occurred as the result of an active emergency-stop input. In this case,
the CC controller unit brakes the motor immediately. This results in
a servo-lag error. The additional information
indicates the active emergency-stop input:
1 = Emergency Stop A
2 = Emergency Stop A Handwheel
3 = Emergency Stop B
4 = Emergency Stop B Handwheel
5 = Emergency Stop B Functional Safety
6 = Emergency Stop B Functional Safety Handwheel
7 = Emergency Stop A Functional Safety
8 = Emergency Stop A Functional Safety Handwheel
Error correction
- Check the external wiring, especially the emergency-stop inputs
- Inform your service agency