Siemens SENTRON 3WL10, Manual

Page: 43 / 234

Description
2.4 Electronic trip unit ETU
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01
41
ETU320
LI
ETU350
LSI
ETU360
LSIG
ETU650
LSI
ETU660
LSIG
Rotary coding switch Display (LCD)
Additional functions
Display of alarms and trip log
memory in OFF status of the circuit
breaker and the ETU
With LED signal On the display (LCD)
With test device TD420 on ETU front interface
Data log with internal high resolution
memory
— — — ● ●
Enhanced testing and analysis of
protection functions
● ● ● ● ●
With gateway device TD410/TD420 on ETU front interface
Read/write maintenance info,
contact wear, history, time
● ● ● ●
(&LCD
&COM)
●
(&LCD
&COM)
Record of a measuring interval
memory and min/max registers
(in ETU)
● ● ● ●
(&LCD
&COM)
●
(&LCD
&COM)
Diagnostic report ● ● ● ● ●
Enhanced settings TD410 / TD420 TD410 / TD420 or LCD
Watchdog: steady electronics or
maglatch or CT failure surveillance:
trip enable
● ● ● ● ●
Overtemperature: trip enable
● ● ●
● ●
Thermal memory disable — — — ● ●
LT protection disable — — — ●
4)
●
4)
Pre-alarm threshold PAL - function
trigger on x I
n
/I
r
— — — ● ●
Software-guided parameterization
(powerconfig)
— — — ● ●
I
4
t overload characteristic &
INST = OFF setting for highly
selective applications
— — — ● ●
4)
L = OFF type of rating plug required to be able to switch off the protection function LT