Siemens SENTRON 3WL10 - Page 210

Operation
6.2 Alarms
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
208 Manual, 10/2018, L1V30499596002-01
Warning displays
Warning display 1
Warning display 2
Alarm / status
Measure / comment
On
Pre-alarm L, power flow is grea-
ter than 90 % of the setting value
I
r
Temperature alarm Lower the ambient temperature
or reduce the continuous opera-
ting current.
Contact erosion > 80% Prompt maintenance and re-
placement of the circuit breaker
required
Line frequency outside the tole-
rance
Check possible interference fac-
tors.
I
n_pal
warning Pre-alarm threshold has been
exceeded.
Flashing fast
(2 Hz)
A warning is pending Press the control key "i Test" to
display a list of warning messa-
ges on the display.
You can read what action to take
in response to which alarm in the
table "LED displays of the protec-
tion releases" (ETUs of the 3-
series).