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DSE Model 8620 AMF Controller Operators Manual
76
After the starter motor has disengaged, the Safety On timer is activated, allowing Oil Pressure, High
Engine Temperature, Under-speed, Charge Fail and any delayed Auxiliary fault inputs to stabilise
without triggering the fault.
6.5.1 ENGINE RUNNING
Once the engine is running, the Warm Up timer, if selected, begins, allowing the engine to stabilise
before accepting the load.
After the Warm-up timer has expired then the module will transfer the load from the failed mains
supply to the generator output. It will observe the following sequence. The Mains Contactor/Breaker
will be instructed to open and after a short delay (transfer delay), the Generator Contactor/Breaker
will be instructed to close.
The generator will then supply the requirements of the load.
NOTE:-A load transfer will not be initiated until the Oil Pressure has risen. This prevents excessive
wear on the engine.
When the mains supply returns, the Stop delay timer is initiated. Once it has expired, the set is
synchronised and paralleled with the mains supply. The system remains in this condition until expiry of
the Parallel run timer. Once this has expired, the module will ramp the remaining load from the
generator to mains supply. The Generator Contact/Breaker will open and the Cooling timer is then
initiated, allowing the engine a cooling down period off load before shutting down. Once the Cooling
timer expires, the Fuel Solenoid is de-energised, bringing the generator to a stop.
During the parallel run, the module can be configured to either run at a fixed level output, or to maintain
an output in relation to the load level on the mains. For full details of these mode please refer to the
manual ‘The Guide to sync and load share Pt1’
Should the mains supply fall outside limits once again the set will return on load.
NOTE: - When synchronising is enabled, the mains supply is checked before closing any load switching
device. If the supply is live, synchronising will take place before any closure takes place.
NOTE: - Synchronising can be disabled if the application does not require this function. Contact your
genset supplier in the first instance for further details.
Содержание DSE8620
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