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Optional stop contions are as below:
0: Pile Volt is higher than the upper limit and load current is lower than the lower limit;
1: Pile volt is higher than the upper limit;
2: Load current is lower than the lower limit;
3: Pile Volt is higher than the upper limit or load current is lower than the lower limit;
NOTE: Load current lower limit detection is active only while genset is normal running and meanwhile genset will stop
only when load current detection time is reached.
4.8 MAINS HAVE RULES
Mains have rules suit for 3P4W/3P3W AC system.
No.
1
Phase A must be
2
electrified.
3
4
Phase A can not
5
be electrified.
5
PROTECTION
5.1 WARNINGS
When controller detects warning signals, it is warning only and not to stop the genset. Besides, the
LCD displays the warning information.
No.
Type
Low Pressure
1
Warn
2
Failed to Stop Warn
Low Fuel Level
3
Warn
4
Reserved
Bat. Under Volt
5
Warn
Bat. Over Volt
6
Warn
7
Input Warn
8
Loss Speed Warn
Room Temp High
9
Warn
HGM4020DC Genset Controller
HGM4020DC GENSET CONTROLLER USER MANUAL
Table 5 – Mains Have Rules
Rules Description
B/C phase cannot be missing;
One of phase B/C can be missing;
Two of phase B/C can be missing;
One of three phases can be missing;
Two of three phases can be missing;
Table 6 - Warning Alarm Types
When the controller detects that the oil pressure has fallen below the
pre-set value, it will initiate a warning alarm and the corresponding alarm
information will be displayed on LCD.
After ETS hold time/wait stop delay has expired, if gen-set does not stop
completely, it will initiate a warning alarm and the corresponding alarm
information will be displayed on LCD.
When the controller detects that the fuel level has fallen below the pre-set
value, or detects that the low fuel level warning input is active, it will initiate
a warning alarm and the corresponding alarm information will be displayed
on LCD.
When the controller detects that battery voltage has fallen below the
pre-set value, it will initiate a warning alarm and the corresponding alarm
information will be displayed on LCD.
When the controller detects that battery voltage has exceeded the pre-set
value, it will initiate a warning alarm and the corresponding alarm
information will be displayed on LCD.
When the controller detects that the auxiliary input warning signals, it will
initiate a warning alarm and the corresponding alarm information will be
displayed on LCD.
When the controller detects that the engine speed is 0 and the delay is 0, it
will initiate a warning alarm and the corresponding alarm information will
be displayed on LCD.
When the controller detects that the temperature of machine room has
exceeded pre-set temp. value (including sensor open circuit), it will initiate
a warning alarm and the corresponding alarm information will be displayed
on LCD.
Version 1.0
Description
2019-04-10
Page 10 of 31
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