Metering functions of the ETUs of the 6-series
Fault values per phase A / V /
Hz w /
VAR
e.g.
L1, L2, L3, N
U12, U23, U31 for V
o
, V
u
—
Time stamp Date, time, and consecutive number —
Maintenance displays
Parameter Metering mod‐
ule MF required
Information on the last 30 trips Type of protection function, fault values, and time stamp —
Information on the last 200 events Type of event, time stamp —
Number of mechanical switching op‐
erations
1)
No. Can be assigned to alarm —
Total number of trips No. — —
Operating hours counter h — —
Contact wear % Pre-alarm > 80%
Alarm = 100%
—
Date of maintenance performed Last —
Direction to perform necessary main‐
tenance
— —
Key data Type of circuit breaker, assigned name, serial number —
Self-diagnostics
Parameter Metering mod‐
ule MF required
Watchdog: constant CT monitoring,
monitoring of the electronics and trip‐
ping coil
Alarm due to dis‐
connection Cur‐
rent sensor, sen‐
sors, opening sol‐
enoid
Note:
Tripping of the circuit breaker can be
set in the case of an alarm
—
Temperature (T) Pre-alarm and
alarm due to over‐
heating
—
1)
After a fault with or without auxiliary power supply
2)
After a fault without auxiliary power supply
3)
If auxiliary power supply is connected
4)
Available in the SIOS Portal, see below
The powerservice software can be found in the SIOS Portal (https://
support.industry.siemens.com/cs/ww/en/view/109749079).
Powerservice software
If a laptop with the powerservice software is connected to an ETU of the 6-series, the following
data can be recorded.
Description
2.9Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 79
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