Bms Connection; Dred/Remote Shutdown Connections; Earth Fault Alarm Connections - Goodwe ET Series User Manual

Detailed pin functions of each port on the ET
BMS： CAN communication is configured by default. If 485 communication is used, please contact
the after-sales department to replace this with the correct communication line.
Position Colour BMS Function
1 Orange & white 485_A2
Orange
2 NC
3 Green & white 485_B2
4 Blue CAN_H
5 Blue & white CAN_L
6 Green NC
7 Brown & white NC
8 Brown NC
Smart Meter LED indications
STATUS OFF
POWER Not working
/
ENERGY
COM Blinks one time when data are transferred to the inverter
15

2.4.5 BMS Connection

BMS is used to communicate with the connected compatible lithium
battery.
There is a 3m communication line marked "To Battery" on the inverter
Connection steps
1. Confirm that the battery and inverter power lines are connected (refer to 2.4.2 Battery Wiring Connections)
2. Connect the BMS communication line of the inverter to the communication interface of the lithium battery
3. Select the corresponding battery through the APP (please follow the user manual of the PV master app)
2.5 DRED (Remote shutdown) Connection
DRED (Demand response enabling device) is used for Australian and New Zealand installations (and is also used
to provide the remote shutdown function in European countries) in compliance with Australian and New
Zealand safety requirements (or for European countries). The inverter integrates control logic and provides an
interface for DRED. The DRED is not provided by the inverter manufacturer.
Detailed connection of DRED (REMOTE SHUTDOWN) is shown below:
Step 1
Unscrew this plate from the inverter.
Note: DRED should be connected to
the "DRED Port" as shown in the figure.
Smart Meter Function EMS
NC 485_A
485_B
NC
485_B1 485_A
NC NC
NC NC
485_A1 485_B
485_B1 NC
485_A1 NC
ON Blinking
Working /
Importing Exporting
Step 2
Steps 1-3 For DRED
1. Place the DRED cable through the plate.
2. Connect the DRED cable to the 6-pin terminal.
The function of each connection position is
shown below.
1
NO.
POWER
Function DRM1/5
ENERGY
COM
Step 3-2 For Remote Shutdown
1. Put the cable through the plate.
2. Wiring from the No. 5 and 6 holes.
NO. 5
Function REFGEN
Step 4
Connect the DRED terminal to the correct position on the inverter.
2.6 Earth Fault Alarm Connection
ET series inverters comply with IEC 62109-2 13.9. The fault indicator LED on the inverter cover will
light up and the system will email the fault information to customer.
1. Pull out the 6-pin terminal and disconnect the
resistor located on this terminal.
2. Pull the resistor out and leave the 6-pin
terminal for the next step.
Note: The 6-pin terminal in the inverter has the
same function as DRED. Please leave it in the
inverter if no external device is connected.
2 3 4 5 6
Screw
DRM2/6 DRM3/7 DRM4/8 REFGEN COM / DRMO
Communication Board
6
COM / DRMO
Screw
Communication Board
Insulator Screw Cap
Nut
RS485 Single Hole Cable
Seal Ring
16
Insulator Screw Cap
Nut
RS485 Single Hole Cable
Seal Ring