DKG-325 User Manual Firmware V-56
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The genset operates while AC mains are OK or continues to operate after AC mains are OK:
-Check engine body grounding.
-AC mains voltages may be outside programmed limits, measure the phase voltages.
-Check the AC voltage readings by pressing the MENU button.
-Upper and lower limits of the mains voltages may be too tight. Check the parameters
Mains Voltage
Low Limit
and
Mains Voltage High Limit
. Standard values are 170/270 volts.
-The hysteresis voltage may be given to excessive. The standard value is 8 volts.
AC voltages or frequency displayed on the unit are not correct:
-Check engine body grounding, it is necessary.
-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 again.
When the AC mains fails the unit energizes the fuel solenoid, but does not start and A01-OIL
PRESSURE warning occurs:
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 and
A01-OIL PRESSURE warning occurs:
-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.
Below is a basic list of most often encountered
troubles. More detailed investigation may be
required in some cases.
17. TROUBLESHOOTING
