DSE Model 8620 AMF Controller Operators Manual
92
UNDERSPEED The engine speed has fallen below the pre-set trip after the Safety
On timer has expired.
Display Reason
GENERATOR OVER FREQUENCY The generator output frequency has risen above the preset level
GENERATOR UNDER FREQUENCY The generator output frequency has fallen below the preset level
GENERATOR OVER VOLTAGE The generator output voltage has risen above the preset level
GENERATOR UNDER VOLTAGE The generator output voltage has fallen below the preset level
OIL PRESSURE SENSOR OPEN
CIRCUIT
The oil pressure sensor is detected as not being present (open
circuit)
AUXILIARY INPUTS An active auxiliary input configured as a shutdown will cause the
engine to shut down. The display shows the text as configured by
the user.
LOSS OF SPEED SIGNAL The speed signal from the magnetic pickup is not being received by
the DSE controller.
ECU DATA FAIL The module is configured for CAN operation and does not detect
data on the engine Can datalink, the engine shuts down.
ECU SHUTDOWN The engine ECU has detected a shutdown alarm and has informed
the DSE module of this situation. The exact error is also indicated on
the module’s display.
kW OVERLOAD The measured Total kW is above the setting of the kW overload
shutdown alarm
NEGATIVE PHASE SEQUENCE
(DSE7000 series V2.0 or above
only)
Indicates ‘out of balance’ current loading of the generator.
Sometimes also called Negative Sequence Current or Symmetry
Fault
MAINTENANCE DUE
(DSE7000 series V2.1 or above
only)
Indicates that the maintenance alarm has triggered. A visit is
required by the Generator service company.
GENERATOR HIGH CURRENT A High Current condition has continued for an excess period, then
the alarm escalates to either a shutdown or electrical trip condition
(depending upon module configuration). For further details of the
high current alarm, please see High Current Shutdown / Electrical
Trip Alarm.
LOADING VOLTAGE NOT
REACHED
Indicates that the generator voltage is not above the configured
loading voltage after the safety timer. The generator will shutdown.
LOADING FREQUENCY NOT
REACHED
Indicates that the generator frequency is not above the configured
loading frequency after the safety timer. The generator will
shutdown.
PROTECTIONS DISABLED Shutdown and electrical trip alarms can be disabled by user
configuration. In this case, Protections Disabled will appear on the
module display; The alarm text will be displayed but the engine will
continue to run. This is ‘logged’ by the module to allow DSE
Technical Staff to check if the protections have been disabled on the
module at any time. This feature is available from V4 onwards.
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