Trip Log - Siemens SENTRON 3WA1 Manual

2.9.4

Trip log

Up to 20 trips can be stored in the trip log of the ETU600 electronic trip unit. The trip log
takes the form of a circular buffer.
Each trip by the ETU600 electronic trip unit is stored with the following information:
• Trip number (1)
• Trip cause (6) with indication of the phase (2) and the associated setting (3)
• Time stamp (4)
• Last measured values before tripping (5)
Note
No external power supply of the ETU600 is required for the trip log function, but is
recommended. In the case of a self-powered electronic trip unit, the contents of the trip
log may be lost if the ETU600 power supply is interrupted while writing the trip log.
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
2.9 Self-monitoring and diagnostics
Description
185