Siemens SENTRON 3WA1 - Page 548

Troubleshooting
8.2 Troubleshooting for the ETU600 electronic trip unit
3WA1 air circuit breaker
546 Equipment Manual, 02/2023, 92310000002-06
Fault
Indication on the
display
Cause
Remedy
BSS200 module warning,
error in module, contact
Service
Error in BSS200 module
Replace the BSS200
module.
ETU warning, uCA RTC,
contact Service
System clock of ETU is
not running.
Replace the electronic
trip unit.
TUI600 module warning,
module not found, check
wiring
The TUI600 module is
disconnected from the
CubicleBUS
2
.
Check the wiring on the
rear of the electronic trip
unit, replace the TUI600
module if necessary.
TUI600 module warning,
error in module, contact
Service
Error in TUI600 module
Replace the TUI600
module.
ZSI200 module warning,
wiring fault, check wiring
Short-circuit on ZSI line
Check the wiring of the
ZSI line.
ZSI200 module warning,
module not found, check
wiring
Module ZSI200
separated from
CubicleBUS²
Check the CubicleBUS²
wiring, replace the
ZSI200 module if
necessary.
ZSI200 module warning,
fault in module, contact
Service
Error in ZSI200 module
Replace the ZSI200
module.