3VL molded-case circuit breaker
4.1 Brief description
3WL/3VL circuit breakers with communication capability - PROFIBUS
94 System Manual, 03/2011, A5E01051353-02
The following list provides an overview of the transferrable data of COM20.
Table 4- 1 Connection of the SENTRON VL trip units
List ETU +
COM20
BDA PLUS
Switching on or off (in conjunction with a motorized operating
mechanism)
✓
Delete alarm and tripping operation buffer ✓
Delete min./max. measured values max. only
Delete maintenance information ✓
ON or OFF status ✓ ✓
Tripped signals ✓ ✓
Tripped signals with cause of tripping operation, tripping current and
time stamp
✓ ✓
Alarm (e.g. overload) ✓ ✓
Max. phase current of a phase ✓ ✓
Phase currents with min./max. value and time stamp max. only ✓
Neutral conductor current with min./max. value and time stamp max. only* ✓ without
min./max.
Read/write to LCD ETU read only ✓
Read ETU ✓
Number and type of LSIG tripping operations ✓
Operating hours ✓
Type of trip unit: LSIG ✓ ✓
3/4-pole switch ✓ ✓
Current sensor rating ✓ ✓
Serial no. of the trip unit ✓ ✓
Software version of the trip unit ✓ ✓
Time synchronization ✓
ZSI functionality ✓
* without time stamp
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