24
ChargeMaster Plus 24/80-2, 24/110-2
–
User and Installation Manual
5.4.1
Charge voltages
Bulk Absorption
Float
AGM or
GEL
28.5
28.5
27.6
Flooded
28.5
28.5
26.5
Lithium-ion 28.5
28.5
27.0
5.4.2
Pre-float
The ChargeMaster Plus can automatically switch
each individual output from absorption to pre-
float stage. Pre-float ensures batteries that are
nearly full do not receive the higher charge
voltage needed in the absorption stage. This
prevents over-charging, extending the lifespan of
the batteries
.
5.4.3
Temperature compensated charging
By installing the battery temperature sensor, the
charge voltages are automatically adapted for
deviating temperatures.
Ch
ar
ge
volt
age
(V
)
Battery temperature (°C)
Figure 7: Temperature compensated charging
When the battery temperature is low, the charge
voltage increases. When the battery temperature
is high, the charge voltage is decreased.
Overcharge and gassing are prevented this way.
This will extend the life of your batteries.
5.4.4
Flat battery support
The ChargeMaster Plus automatically detects a
flat battery and will initiate the flat battery charge
curve described in the following table.
Voltage
Output power
0.00V
–
5.00V
15%-30% of I
max
5.00V
–
16.00V
25% of I
max
16.00V
–
20.00V linear from 25% - 100% of I
max
20.00V
–
28.50V 100% of I
max
>28.50
Limited by P
max
5.5
DC Output 2
The ChargeMaster Plus is equipped with one full
output (DC 1 OUT) and one secondary output
(DC 2 OUT). The total output current is divided
over these two outputs. See section 3.6 for
connections.
DC 2 OUT is current limited at 20A and can
operate in the following modes:
•
12V battery
(DIP switch 6)
If DIP switch 6 is in the on position, then DC 2
OUT is current limited and set to 12V. All
batteries are charged with the same settings.
•
Current limit 10A
(DIP switch 7)
DC 2 OUT is current limited to 10A to safely
charge a small starter battery.
•
12V constant voltage
DC 2 OUT is current limited (configurable)
and set to 13,25V constant voltage.
•
24V constant voltage
DC 2 OUT is current limited (configurable)
and set to 26,5V constant voltage.
•
12V 3 step+
DC 2 OUT can charge a 12V battery with its
own charging profile. Settings can be
configured.
The charge method can be selected in the
configuration tool. The first two can also be
selected via DIP switches.
5.6
Maintenance
No specific maintenance to the ChargeMaster
Plus is required. Examine your electrical
installation on a regular basis, at least once a
year. Defects such as loose connections, old
wiring etc. must be corrected immediately.
If necessary, use a soft clean cloth to clean
enclosure of the ChargeMaster Plus. Do not use
any liquids or corrosive substances, such as
solvents, alcohol, petrol or abrasive components.
30
28
26
24
22
-30
-20 -10
0
10
20
30
40
50
60