Electrical Connection Of Expansion Battery Packs - Alpha ESS SMILE-B3-PLUS Installation Manual

ELECTRICAL CONNECTION
1. Lead the communication cables through the cable glands of the COM connection cover,
don't tighten the pressure caps of the cable glands.
Insert the RJ45 plugs to the relative RJ45 sockets.
1) For meter wiring, please refer to Chapter 7.4.4 Meter Connection.
2) 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 im-plements the
commands 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-B3-PLUS.
3) Take out 6 pin terminal block for AUX connection. Tighten them one by one us-ing the
torque of 0.2 Nm with tool of #0 slotted screwdriver.
For AUX position definition, please see the AUX wiring documentation.
38
Installation method of two communication
cables via M25 cable gland
Installation method of only one communi-
cation cable via M25 cable gland
39
2. Place the COM connection cover against the inverter housing and tighten them.

7.7 Electrical Connection of Expansion Battery Packs

1. Remove the terminal resistance from the battery and insert it into the BMS
communication port of the last battery (the battery furthest from the inverter).
Last battery
2. Connect the positive power cable from battery 2 to battery 1 (tool: T20 screwdriver,
torque: 3 Nm).
Battery 1
Battery 2
ELECTRICAL CONNECTION
M4*12 Screw
M6
T20
3 N·M