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3.3.2
Working principle of the DC charging unit and the control unit
A
M
A
B
C
D
E
F
G
H
I
J
K
•
Red and bold lines: AC power connection
•
Black and bold lines: DC power connection
•
Black and thin lines: auxiliary power connection
•
Green lines: control signal or monitoring signal
•
Dashed lines: group of system components
9AKK108467A6997-EN | 003
E
B
C
B
C
B
C
B
C
B
C
S
R
AC power input
Power module circuit breaker
Power module
Fan
Optional power module group
(Terra Mobile 54HV)
DC filter
DC switch matrix
DC fuse
CPI board
IMI board
DC charge cable
D
D
G
F
D
D
D
O
P
Q
L
EV
M
Auxiliary power supply
N
CCB board
O
Main control board
P
Touchscreen
Q
RFID
R
RS485 source
S
Ethernet connection source
T
Emergency stop button
U
Auxiliary residual-current device
Description
H
K
J
I
H
K
J
I
T
N
U
L
L
21
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