Manual
HM1016ER1
Pre-alarm and Shutdown Alarm
Harsen
®
Page 20/54
GEN. UNDER VOLT: After safety-on delay times out, If controller
detects that any phase voltage of generator is lower than “GEN-V
under Alarm”, Genset stops, the Shutdown alarm LED illuminates and
buzzer sounds, LCD displays:
For example, “rating voltage” preset as: 220V, “GEN-V under Alarm”
preset as: 90%, when the generator output voltage falls below this value,
LCD displays low value icon for corresponding phase.
OVERLOAD: After safety-on delay times out, if controller detects the
active power is higher than “KW Overload Alarm”, Genset stops, the
Shutdown alarm LED illuminates and buzzer sounds:
For example, “rating active power” preset as: 300KW, “KW Overload
Alarm” preset as: 90%, when the generator active power exceeds this
value, LCD displays icon for corresponding high value.
LOP SENSOR OPEN: when controller detects that the resistance of LOP-
sensor exceeds the range of measurement, it means LOP sensor is open,
Genset stops, the Shutdown alarm LED illuminates and buzzer sounds,
LCD displays:
NOTE:
If engine speed signal is derived from generator output voltage
frequency, it is used for control and failure protection parameters, for
convenience of user, some data is expressed by RPM, RPM = Hz*60 /
pair of poles.
NOTE:
While the Genset is running, if there is high coolant temperature, low oil
pressure or over speed failure the controller will shutdown it immediately
without delay. During the cool down period, if there is low oil pressure
failure, the controller will shut down the Genset immediately without
delay.
CAUTION:
During the period of safety-on delay, low oil pressure protection is inactive.
To avoid starting an engine with no oil, you must make sure the oil levels are
normal and the safety-on time shall be carefully and properly set for the first
commissioning.
Code Table for Failure:
Name
Code
Name
Code
LOSS OF PICKUP
UNDER SPEED
CHARGE FAILURE
OVER CURRENT
BATT. UNDER VOLT
GEN. OVER VOLT
BATT. OVER VOLT
GEN. UNDER VOLT
START FAILURE
OVERLOAD
STOP FAILURE
P-SENSOR OPEN
EMERGENCY STOP
D-INPUT *
*
LOW OIL PRESS
GCB FAILURE
ENGINE HIGH TEMP.
MCB FAILURE
OVER SPEED
