Siemens SENTRON 3VA27 - Page 207

Operation
6.2 Alarms
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
205
L
S
I
G
Alarm / status
Measure / comment
Flashing fast
(2 Hz)
Flashing fast
(2 Hz)
Temperature alarm Lower the ambient
temperature or
reduce the continuous
operating current.
On
Pre-alarm L, power
flow is greater than
90 % of the threshold
value
On
Circuit breaker has
been tripped by the L
release
Clear faults in the
power system and
close the circuit brea-
ker again.
On
Circuit breaker has
been tripped by the S
release
Clear faults in the
power system and
close the circuit brea-
ker again.
On
Circuit breaker has
been tripped by the I
release
Clear faults in the
power system and
close the circuit brea-
ker again.
On
Circuit breaker has
been tripped by the G
release
Clear faults in the
power system and
close the circuit brea-
ker again.
Flashing fast
(2 Hz)
Threshold has been
exceeded, tripping
delay is elapsing
Reduce rated current
(disconnect loads)
Flashing fast
(2 Hz) with 2 s
pause
Parameter error, rotary
coding switch in wrong
position
Check and correct:
• I
r
< I
sd
or I
sd
< I
i
• I
u
< (2 x I
n
x I
r
) if
I
N
= 200 %
• I
g
> 0.25 x I
n
with a
rating plug for
400 A;
otherwise
I
g
> 0.2 x I
n