Installation Manual

26
ChargeMaster Plus 12/75-3, 12/100-3, 24/40-3, 24/60-3 – User and Installation Manual
3
Blinking fast
green
Battery in bulk stage
Blinking slow
green
Battery absorption
stage
Solid green
Battery in float stage
4
Blinking fast
green
Battery in bulk stage
Blinking slow
green
Battery absorption
stage
Solid green
Battery in float stage
5
Blinking
green
Network
communication
OUTPUT POWER MENU
LED
State
Meaning
1
Solid orange
Output power menu
2
Solid orange
Total output power 0-
25%
3
Solid orange
Total output power 26-
50%
4
Solid orange
Total output power 51-
75%
5
Solid orange
Total output power 76-
100%
ERROR MENU
LED
State
Meaning
What to do
1
Blink fast
red
Error menu
2
Blink fast
red
Reverse
polarity
Check battery
connection
3
Blink fast
red
AC error
Check AC
voltage/fre-
quency
4
Blink fast
red
DC error
Check battery
voltage
5
Blink fast
red
Temperature
sense error
Check
temperature
sensor
5.4 The 3-step+ charge process
Battery charging is accomplished in three
automatic stages: BULK, ABSORPTION and FLOAT.
The first step is the BULK phase, in which the
output current of the charger is 100%, and the
greater part of the capacity of the battery is
rapidly charged. The current charges the
batteries and gradually the voltage rises to the
BULK voltage 14.25V respectively 28.5V at
25°C/77°F.
The duration of this phase depends on the ratio
of battery to charger capacity, and the battery
state of charge.
Figure 6: charge process
The BULK phase is followed by the ABSORPTION
phase. Absorption charging starts when the
voltage on the batteries has reached the BULK
voltage, and ends when the battery is completely
full. Battery voltage remains constant at
14.25V/28.5V at 25°C/77°F throughout this
stage, and the charge current depends on the
degree to which the battery was initially
discharged, the battery type, the ambient
temperature, etc. With a flooded battery this
stage lasts approx. 4h, with gel and AGM around
3h. Once the battery is 100% full, the
ChargeMaster Plus automatically switches over
to the FLOAT phase. In FLOAT, the ChargeMaster
Plus switches to a stabilized 13.25V/26.5V
(Flooded), 13.8V/27.6V (Gel/AGM) or 13.5V/27V
(MLI) at 25°C/77°F.
Connected DC loads are powered directly by the
charger. If the load exceeds the charger
capacity, the required additional power comes
from the battery, which will be progressively
discharged until the charger automatically
switches back to the bulk phase. Once
consumption decreases, the charger goes back
to normal operation of the 3-step charge system.
As the ChargeMaster Plus is equipped with a 3-
step+ charge system, the batteries can also
remain connected to the ChargeMaster Plus
during winter. One hour every 14 days the
charger automatically switches to absorption to
keep the battery running properly and prolong its
life span. The three-step plus charge system is
also safe for all the connected equipment. See
also Figure 9 on page 35.