Mastervolt CHARGEMASTER PLUS Series

20
ChargeMaster Plus
12/75-3, 12/100-3, 24/40-3, 24/60-3 – User and Installation Manual
The status display has a 3 level menu. Menu navigation is
done by shortly pressing the MODE button. After each
press the next menu level is shown. The MODE LED color
indicates the level that is being shown.
Menu
MODE LED color
Meaning
Level 1
Green
Status menu
Level 2
Orange
Output power menu
Level 3
Red
Error menu
Status
Display LED State Meaning
MODE
Solid green ChargeMaster Plus on
Solid red ChargeMaster Plus stand-by
Blink fast red Error, navigate to error menu
Battery I
Blinking medium fast green Battery in bulk stage
Blinking slow green Battery absorption stage
Solid green Battery in float stage
Battery II
Blinking medium fast green Battery in bulk stage
Blinking slow green Battery absorption stage
Solid green Battery in float stage
Battery III
Blinking medium fast green
Battery in bulk stage
Blinking slow green Battery absorption stage
Solid green Battery in float stage
MasterBus Blinking green MasterBus communication
Output power
Display LED State Meaning
MODE Solid orange Output power menu
Battery I Solid orange Total output power 0-25%
Battery II Solid orange Total output power 26-50%
Battery III Solid orange Total output power 51-75%
MasterBus Solid orange Total output power 76-100%
Error
Error
LED
State
Meaning
What to do
MODE Blink fast red Error menu
Battery I Blink fast red Reverse polarity Check battery connection
Battery II Blink fast red AC error Check AC voltage/frequency
Battery III Blink fast red DC error Check battery voltage
MasterBus Blink fast red
Temperature
sense error
Check temperature sensor