Power Supply PS1000-A6-12.16
Application Notes
20
21
-1
1
43
27.9
Charging of Batteries
The power supply can be used to charge lead-acid or maintenance free batteries
(SLA or VRLA batteries).
Charging Batteries
1.
Set output voltage (measured at no load and at the battery end of the cable) very precisely
to the end-of-charge voltage, see table below.
2.
Use a 25A circuit breaker (or blocking diode) between the power supply and the battery.
3.
Ensure that the output current of the power supply is below the allowed charging current
of the battery.
4.
Ensure that the ambient temperature of the power supply stays below 40°C..
5.
The return current to the power supply (battery discharge current) is typ. 2.6mA when
the power supply is switched off (except in case a blocking diode is utilized).
27.10
Two Phases Operation
The power supply can also be used on two-phases of a three-phase-system.
Such a phase-to-phase connection is allowed as long as the supplying voltage
is below 240V
+10%
.
Figure 27.8 Two phases operation
End-of-charge voltage
13.9V
13.75V
13.6V
13.4V
Battery temperature
10°C
20°C
30°C
40°C
24
0
V
+
10%
m
a
x.
L2
L1
L3
L
N
PE
Power Supply
AC
DC
Center
Tap
