Siemens SENTRON 3WA1 - Page 92

Description
2.5 Electronic trip unit ETU600
3WA1 air circuit breaker
90 Equipment Manual, 02/2023, 92310000002-06
LED
Meaning
Description
INFO
Display of status information
Off
Normal operating state
On
Warning is present
On
Error is present
DAS+
Maintenance mode DAS+
Off
DAS+ not activated
On
DAS+ activated
L, S/I, G, EPF
Last trip cause
Off
Normal operating state
On
Tripping due to:
L
Overload LT
S/I
Short circuit ST, dST or INST
G
Ground fault GF
EPF
Enhanced protective function
Details on tripping are shown on the display and stored in the trip log of the ETU600. If the
ETU600 is not activated, the trip cause can be displayed by pressing the Query button. A
prerequisite for the display of the trip cause is that the ETU600 was activated for at least 2 hours
before tripping. The trip cause reason is stored for 24 hours in this case.
Additional information on the display of error messages can be found in Chapter Display
of errors and alarms (Page 181).