DKG-317 User Manual V-01.19
(01.10.2009)
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11. TROUBLESHOOTING
AC voltages or frequency displayed on the unit are not correct:
-Check engine body grounding, it is necessary. For testing, connect together the BAT(-) and Neutral
terminals together to check if the fault disappears.
-The error margin of the unit is +/- 3 volts.
-If there are faulty measurements only when the engine is running, there may be a faulty charging
alternator or voltage regulator on the engine. Disconnect the charging alternator connection of the engine
and check if the error is removed.
-If there are faulty measurements only when mains are present, then the battery charger may be failed.
Turn off the rectifier fuse and check.
Phase-to-Phase AC voltages are not correct although Phase to Neutral voltages are correct:
-Incorrect phase order. Please connect phase voltages in the correct order.
KW and cos
Φ
readings are faulty although the Amp readings are correct:
-Current transformers are not connected to the correct inputs or some of the CTs are connected with
reverse polarity. Determine the correct connections of each individual CT in order to obtain correct KW
and cos
Φ
for the related phase, and then connect all CTs.
Short circuit the outputs of unused Current Transformers.
When the RUN button is pressed, the unit energizes the fuel solenoid, but does not start and OIL
PRESSURE 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 switch closes, 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 OIL
PRESSURE led flashes:
-The oil pressure switch closes very lately. As the unit senses an oil pressure, it does not start. When oil
pressure switch closes the unit will start. Optionally the oil pressure switch may be replaced.
