ComAp IM-NT, Reference Manual

Page: 304 / 328

InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf,
©ComAp – June 2013
304
See the chapter Timers for more details about timers.
15.2.1.51 Binary output: TimerActiveCom
Related FW 3.0
Description This is combined output from all timer channels. The output is active if at
least one timer channel is active.
15.2.1.52 Binary output: Synchro
Related FW 3.0
Description The output is closed during reverse synchronizing and opens when the
output
BTB status is activated (= BTB was closed).
N
OTE
:
The output can be used for external synchronizing module control.
15.2.1.53 Binary output: In synchronism
Related FW 3.0
Description This output is closed during synchronization when all synchro conditions
have been fulfilled. The output is opened either when:

the synchro conditions are lost or

the corresponding breaker has been closed or

the sychronizing was interrupted or timed out.
Synchro conditions are following:

Slip frequency is lower than 0.25 Hz

Phase shift between mains and bus (BusLeft and BusRight - in BTB
application) voltage must be within range of ±
Phase window for
period longer than Dwell time .

Voltage difference between mains and bus (BusLeft and BusRight -
in BTB application) voltage (in all phases) must be lower or equal to
Voltage window for period longer than Dwell time .
The output is intended for manual synchronization. Automatic closing of BTB
must be disabled for this case. Use the input BTB disable .