Installation Manual
18 
ChargeMaster Plus 12/75-3, 12/100-3, 24/40-3, 24/60-3 – User and Installation Manual 
4.2.2  Alarms 
The following table lists the available alarms in MasterAdjust. 
Parameter 
Meaning 
Alarm status 
Bat. temp. error 
Battery temperature too high / too low 
TS error 
Temperature sensor error 
DC 1 OUT 
Shunt mismatch 
Setting for nominal voltage (12/24V) at the MasterShunt or the nominal voltage of 
the MLI batteries differs from nominal voltage detected by the ChargeMaster Plus. 
Check battery voltage and settings of the MasterShunt or voltage of the MLI Ultra 
battery. 
Reverse polarity 
DC + and DC –are connected in reverse (this will damage the charger) 
DC 2 OUT 
Reverse polarity 
DC + and DC –are connected in reverse (this will damage the charger) 
DC 3 IN/OUT 
Reverse polarity 
DC + and DC –are connected in reverse (this will damage the charger) 
4.2.3  History 
The history data shows the absolute maximum readings. The following parameters are only shown in 
MasterAdjust. 
Parameter 
Meaning 
Charger 
Days running 
Total run time in charger mode  
DC 1 / 2 OUT 
Total Ah’s 
Total charged Ah’s 
DC 3 IN/OUT 
Total Ah’s 
Total charged Ah’s 
Total Ah’s in 
Total charged Ah’s using DC 3 IN/OUT as input 










