DSE Model 8620 AMF Controller Operators Manual
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Once the engine is running, the Warm Up timer, if selected is initiated, 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 mains supply to
the generator output. It will observe the following sequence.
The Generator will first be instructed to synchronise with the mains supply. Once these are matched
the Generator Contact/Breaker will be instructed to close.
The load will then be ramped from the Mains to the appropriate level on the generator.
It will remain in this state whilst in the TEST mode unless the configuration (Advanced Options-Test
mode) is configured for Run Mode=Island mode.
If the module has an active remote start in island mode input or the internal scheduler has been
configured for island mode then the parallel run time will activate. When this expires, the load will
ramp off the mains supply and onto the generator. The Mains Contactor/Breaker will be instructed to
open
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.
The system will then remain in this mode of operation until a different mode is selected. It is
recommended that mode is used to cancel the TEST mode.
When mode is selected 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’
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.
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