HGM6100LT Series Genset Controller User Manual                                                                  Page 13 of 50 
5  PROTECTION 
5.1  WARNING   
When controller detects the warning signal, genset only sends alarm and not stop. The alarms are 
displayed in LCD. 
Table 4 – Warning Alarms 
When the speed of genset is 0 and speed loss delay is 0, controller will 
send warning alarm signal and it will be displayed in LCD.   
When the current of genset is higher than threshold (definite time) and 
setting over current delay is 0, controller will send warning alarm signal 
and it will be displayed in LCD. 
When genset cannot stop after the “ETS delay/fail to stop delay” is over, 
controller will send warning alarm signal and it will be displayed in LCD.   
When  the  fuel  level  of  genset  is  lower  than  threshold  or  low fuel  level 
warning is active, controller will send warning alarm signal and it will be 
displayed in LCD. 
When the voltage  of  genset  charger  is  lower  than  threshold,  controller 
will send warning alarm signal and it will be displayed in LCD. 
When the battery voltage of genset is lower than threshold, controller will 
send warning alarm signal and it will be displayed in LCD. 
When the battery  voltage  of  genset  is  higher  than threshold,  controller 
will send warning alarm signal and it will be displayed in LCD. 
When low coolant level input is active, controller will send warning alarm 
signal and it will be displayed in LCD. 
When  sensor  hasn’t  connected  to  corresponding  port,  controller  will 
send warning alarm signal and it will be displayed in LCD. 
When  sensor  hasn’t  connected  to  corresponding  port,  controller  will 
send warning alarm signal and it will be displayed in LCD. 
Maintenance  type is  running time.  When genset running time  is longer 
than maintenance time of user setting or the maintenance type is date, 
the current date is over the set value, and the maintenance action is set 
as warn, controller send warning alarm signal and it will be displayed in 
LCD.   
When the water/cylinder temperature of genset is higher than threshold 
and  Enabled  High  Temp.  Stop  Inhibited  or  Input  High  Temp.  Stop 
Inhibited is active, controller will send warning alarm signal and it will be 
displayed in LCD. 
When the oil pressure of genset is less than threshold and Enabled Low 
Oil  Pressure  Stop  Inhibited  or  Input  Low  Oil Pressure  Stop  Inhibited  is 
active, controller will send warning alarm signal and it will be displayed 
in LCD.