7 Dimensioning the upstream power supply
Pay attention that the source is correctly dimensioned and supplies enough current to
ensure the charging process and the function of the application. The UPSI reduces its
charging current depending on the load. However, care must be taken to ensure that
the battery pack can be charged even at maximum load. This results in the following
minimum requirements for the PSU source depending on the load:
Input source
I
[A]
LOAD
0
1
2
3
4
5
6
7
8
40
12 V or 24 V
I
[A]
IN TOTAL
UPSI
I
CHARGE/DISCHARGE
Batterypack
UPSI-1208IP-11U / UPSI-1208IP-23U
I
[A]
CHARGE
4
5
3,6
3,2
3
2.5
2.2
1.8
1.5
UPSI-IP-1 series | UPSI- IP-2 series
12 V or 24 V
I
[A]
LOAD
Application
[A]
I
[A]
IN TOTAL
4
5
5.6
6.2
7
7.5
8.2
8.8
9.5
P
[W]
IN TOTAL
48
60
67
75
84
90
99
106
114