Siemens SENTRON 3WA1 - Page 185

Description
2.9 Self-monitoring and diagnostics
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
183
Error without circuit breaker tripping
An error without tripping is a type of error that does not influence the primary protective
functions of the circuit breaker. The function of the circuit breaker is restricted because
parts are no longer ready for operation. For example, these may be the metering function
or the display of the electronic trip unit ETU. A service assignment by a Siemens-
certified technician is necessary.
Error
Description display ETU600
CRC error application processor ETU600
ETU Error, system, contact Service
RAM error application processor ETU 600
Memory error ETU
Error in thermal memory
Error in the analog measuring circuit
Watchdog error
Current sensor Rogowski coil defective
ETU Error, current sensor [phase], contact Service
Limit temperature ETU exceeded
ETU Error, limit temperature exceeded, check ETU
Error in the VTM voltage tap module of the ETU600
ETU Error, VTM module, contact Service
Error firmware update ETU600
ETU Error, firmware update, contact Service
Memory error BIM
Error circuit breaker, system, contact Service
Rotary switch ETU defective
ETU Error, [protective function parameter], contact
Service
Indication of trip cause faulty
ETU Error, indication of trip cause, contact Service