Technical data

Diagnostics
5.3 Fault and alarm messages
Function Manual
114 Function Manual, 06/2012, 6SL3097-4AB10-0BP4
Explanations of the alarm classes
● W_NCA: Drive operation currently not limited
– e.g. alarm when measurement systems inactive
– no limitation on current movement
– Prevent possible switching to the defective measuring system
● W_NCB: Time-limited operation
– e.g. prewarning temperature: without further action the drive may need to be switched
off
– after a timer stage → additional fault
– after exceeding a trip threshold → additional fault
● W_NCC: Functionally limited operation
– e.g. reduced voltage/current/torque/speed limits (i2t)
– e.g. continue with reduced accuracy / resolution
– e.g. continue without encoder