HGM7220N/HGM7220S GENSET CONTROLLER USER MANUAL
HGM7220N/HGM7220S Genset Controller 2019-02-28 Version 1.0 Page 44 of 60
only active in auto mode.
Operational Process:
a) When remote start input is active, the main set is in standby status, it will start automatically, and
the running time is the pre-configured “Main Set Running Time”;
b) If “Main Set Running Time” is expired or alarm shutdown occurs, main set will send command to
start backup set. When backup set remote start input is active, it will start up and main set will stop
as soon as the standby unit is normal running. Backup running time is pre-configured “Backup Set
Running Time”;
c) In the whole process, main set communicates with backup set via CAN, if backup unit running
time is expired or alarm shutdown occurs, main set will circularly start up again.
d) If communication has error, controller will initiate “Cycle Start Comm. Fail” alarm. Then
main/backup set will start if remote start input of main/backup set is active.
11 SENSOR SETTING
— When sensors are reselected, the sensor curve will be transferred into the standard value. For
example, if temperature sensor is SGH (120°C resistor type) at default factory, its sensor curve is
SGH (120°C resistor type); if SGD (120°C resistor type) is selected, the temperature sensor curve
is SGD curve.
— If there is difference between standard sensor curves and the used sensor, users can select
“defined sensor”, and then input defined sensor curve.
— When the sensor curve is inputted, X value (resistor) must be inputted from small to large,
otherwise, mistake occurs.
— If sensor is selected as “Not Used”, sensor curve will not work.
— The corresponding sensor must be configured as “Not Used” if sensor only has alarm switch,
otherwise, alarm shutdown or warning may occur.
— The headmost or backmost values in the vertical coordinates can be set as same as below.
Figure 3 – Curve Setting
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