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6.5.2. AUX/LAN/PV-CT/DRM、RRCR/GRID-CT、Meter/RS485/BMS Connection
For other communication (AUX, LAN, RRCR, DRM, Meter, RS485) connections,
please follow the steps below.
1. Loosen the cable glands on the COM connection cover, and then unscrew the 4
screws on the COM connection cover.
2. Pass the communication cables through the cable glands of the COM connection
cover, don't tighten the strain relief clamp of the cable glands.
Insert the RJ45 plugs to the relative RJ45 sockets.
a. For meter wiring, refer to Chapter 6.3.5 for Chint Meter Connection.
b. If DRM support is specified, the system may only be used in conjunction with a Demand
Response Enabling Device (DRED). This ensures that the system implements the com-
mands from the grid operator for active power limitation at all times. The system and
the Demand Response Enabling Device (DRED) must be connected in the same network.
Only DRM0 is available for SMILE-G3-INV.
c. Take out the 6 pin terminal block for AUX connection. To wire connections, insert a
screwdriver (blade width: 1.2 mm) into the relative connection position side.
For AUX position definition, please see the AUX wiring documentation.
3. Place the COM connection cover against the inverter housing and tighten the 4
screws. When securing the cover over the comm ports, tighten the cover in place and
then lightly push the comms cables into the cover as you tighten the strain relief gland
onto the cables. This will ensure the comms cables are well-seated in the RJ45 ports.
Pin definition of the communication ports:
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