HGM9580 BUS TIE BUS PARALLEL UNIT
HGM9580 Bus Tie Bus Parallel Unit ISSUE 2014-02-16 Version 1.0 Page 16 of 33
5.2 TRIP ALARM
On initiation of the trip condition the controller will de-energize the
‘
Close Generator
’
Output
without stop the generator.
Trip alarm as following,
No
Type
Description
1
Digital Input
When the digit input port is set as User Configured and the action
select “Trip”, it will initiate a trip alarm.
2
Fail to sync
When the controller does not detect synchronization signal within
the pre-set synchronization time, it will initiate a trip alarm.
3
Bus Breaker Fail
When the controller detects that the bus breaker is failed, it will
initiate a trip alarm.
4
MSC Too Few Sets
When the controller detects fewer modules on the MSC link than
the minimum number configured in the unit, it will initiate a trip
alarm. There are 2 possible reasons: a) Communication line
between
the
controllers
disconnects,
which
interrupts
communication.
b) Other parallel gen-sets controllers have not been powered on.
5
Bus
1
Phase
Sequence Wrong
When the controller detects a bus 1 phase rotation error, it will
initiate a trip alarm.
6
Bus
2
Phase
Sequence Wrong
When the controller detects a bus 2 phase rotation error, it will
initiate a trip alarm.
7
MSC ID Error
When the controller detects the same ID on the MSC Bus, it will
initiate a trip alarm.
8
Volt Bus Error
When the controller detects that the genset has already closed but
there is no voltage on bus, it will initiate a trip alarm.
