DSE Model 8620 AMF Controller Operators Manual
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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.
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.
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.
Advanced Ramping Scheme - When configured the breaker closes and the Generator power is held until
the end of the timer before ramping off
When the remote start on load input is removed, the Stop delay timer is initiated. Once this timer has
expired, the module will ramp the 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.
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.
NOTE: - The load level mode of operation relies on a Current Transformer (CT) fitted to the mains feed
of the system. This is then used for measurement of the mains current used in the load level calculations.
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