Sofar PowerMagic - Page 76

PowerMagic 400V C&I Energy Storage System User Manual
72
external
interface
terminal
Terminal
Pins
Feet instructions
Recommended
line diameter
range
Remarks
J12
1~2
The CAN
communication between
the CSU and the PCS
（
0.5~1.5mm²
）
*8
3~4
Carrier synchronization
between the CSU and
the PCS
5~6
CSU alarm signal input
to CMU
7~8
CMU alarm signal
output to CSU
9~12
/
/
No wiring
13~14
24V power supply for
sink cabinet
dehumidifier
16AWG*2
15~16
Confluence cabinet
CSU 24V power supply
16AWG*2
J13
1~2
External alarm signal
input to CMU
（
0.5~1.5mm²
）
*8
Reserved interface, without
wiring
3~4
CMU output external
fault
Pre-wired interface, no
wiring required
5~6
CAN communication
between PCS and PCS
No wiring is required for
this pin on a single storage
cabinet.
7~8
Carrier synchronisation
between PCS and PCS
No wiring is required for
this pin on a single storage
cabinet.
Table 5.4 Definition of external interface terminals for the energy storage cabinet with CSU
external
interface
terminal
Terminal
Pins
Feet instructions
Recommended
line diameter
range
Remarks
J12
1~2
CSU communicates with
counter-current meter 485
（
0.5~1.5mm²
）
*16
3~4
CSU and backup cabinet
5~6
CSU and backup cabinet
STS often open state
detection