Datakom DKG-205 Gebruikershandleiding - Pagina 13

Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Datakom DKG-205. Datakom DKG-205 20 pagina's. Automatic mains failure unit

When the AC mains fails the unit energizes the fuel solenoid, but does

not start, also OIL PRESSURE ALARM led flashes:

The unit is not supplied with battery (-) voltage at the oil pressure input.

-Oil pressure switch not connected.

-Oil pressure switch connection wire cut.

-Oil pressure switch faulty.

-Oil pressure switch closes too lately. If oil pressure falls, the unit will start.

Optionally oil pressure switch may be replaced.

The engine does not run after the first start attempt, then the unit does

not start again and the OIL PRESSURE ALARM led flashes:

-The oil pressure switch closes very lately. As the unit senses an oil pressure,

it does not start. When oil pressure falls the unit will start. Optionally the oil

pressure switch may be replaced.

When the AC mains fails, the engine starts to run but the unit gives FAIL

TO START alarm and then the engine stops:

-The generator phase voltage is not connected to the unit. Measure the AC

voltage between terminals (L1) and (Generator Neutral) at the rear of the unit

while engine is running. The fuse protecting the generator phase may be

failed. A misconnection may be occurred. If everything is OK, turn all the fuses

off, and then turn all the fuses on, starting from the DC supply fuse. Then test

the unit again.

The unit is late to remove engine cranking:

-The alternator voltage rises lately. Also the generator remanant voltage is

below 10 volts. The unit removes starting with the generator frequency, and

needs at least 10 volts to measure the frequency. If this situation is to be

avoided, the only solution is to add an auxiliary relay. The coil of the relay will

be between BATTERY (-) and charging alternator LAMP terminal. The

normally closed contact of the relay will be connected serially to the unit's

START output. So the starting will also be removed when the CHARGE LAMP

turns off.

The unit is inoperative:

Measure the DC-supply voltage between (+) and (-) terminals at the rear of

the unit. If OK, turn all the fuses off, then turn all the fuses on, starting from

the DC supply fuse. Then try the unit again.

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