HGM7220N/HGM7220S GENSET CONTROLLER USER MANUAL
HGM7220N/HGM7220S Genset Controller 2019-02-28 Version 1.0 Page 15 of 60
due, if generator close fails generator close is waited for.
2. If input port not configured as close status auxiliary input
Controller shall output mains close when genset and generator meet synchronization conditions.
When it detects mains close feedback signal, generator open outputs and mains is on-load. If mains
close is outputted, mains close feedback signal is not detected during the C/O synchronization period,
mains open is outputted and generator is on-load. Generator open status is detected at the time of
generator open output. When the C/O synchronization time is due, if generator open fails, mains open
outputs. If synchronization signal is not detected during the set synchronization failure time, then
synchronization failure alarm is issued. If synchronization failure alarm is warning and transfer is
forced to be enabled after synchronization failure, then generator open outputs. After open delay,
generator open status is detected at the time of generator open output. When detection time is due, if
generator open fails, then mains shall not close, otherwise, after transfer delay mains close outputs.
Mains close status is detected at the time of mains close output. When the detection time is due, if
mains close fails mains close is waited for.
Mains Disable:
For generator off-load changing to generator on-load, generator close outputs. For generator
on-load changing to generator off-load, generator open outputs.
NOTE: Mains close status and Generator close status are needed to be configured for input port, otherwise
controller shall issue mains breaker failure warning or generator breaker failure warning.
NOTE: For synchronization failure alarm, it is needed to press longer to remove the alarm.
NOTE: If synchronization C/O detection time is less than breaker C/O time, then synchronization C/O detection time
is breaker C/O time.
To Next Page
Loading...
Need help?
General
