3VL molded-case circuit breaker
4.1 Brief description
3WL/3VL circuit breakers with communication capability - PROFIBUS
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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