Connecting Signal Cable - Growatt MIN 2500TL-XA Installation & Operation Manual

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MIN XA series inverters are connected by the following wires.The BAT+/BAT- of the
inverter are connected to the BAT+/BAT- of the battery in turn.
6.4.3 Connecting to Battery Pack
This series inverter support to connect lithium ion battery pack, the lithium ion battery
pack has its own battery management system, the bidirectional DC/DC box connect to
battery pack by RS485 or CAN,the XA series inverters connect to DC-DC box by RS485. In
addition, XA series inverters also have a pair of signals for waking up the battery.
SYS COM Port Pin Definitions
NO.
Port
Connect Battery signal port
1
Enable-
negative
Connect Battery signal port
2
Enable+
positive
Connect Batter communication
7
BAT_B
RS485B or CANL
Connect Battery communication
8
BAT_A
RS485A or CANH
The communication between the inverter and the battery is connected by the following
wires.
The communication interface RS485 or CAN between the Battery
and the lithium ion battery pack is not properly connected or the
electrical disconnection will cause the equipment to work
CAUTION
abnormally,or even damage the equipment!
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Definition
Pin assignments front view

6.5 Connecting signal cable

This series inverter has two 8 Pin signal connectors,one is COM PORT connector,another
is SYS COM PORT connector. Signal Cable Ports as follows:
Procedure
Step 1 Insert the stripped and bared cable through pressure screw, seal ring, threaded
sleeve in sequence, insert cables into connection terminal according to number indicates
on it and tighten the screws firmly. Please try to pull out the wire to make sure the it's
well connected.
Step 2 Push the threaded sleeve into the socket, Tighten up the cap on the terminal.
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