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15
02 Installation Instructions User Manual V1.1-2022-01-05
Note:
For convenient maintenance, please install a SP3T switch on back-up and on-grid side. Then it is
adjustable to support load by back-up or by grid or default settings.
1. Back-up load is supplied from back-up side.
2. Back-up load is isolated.
3. Back-up load is supplied from grid side.
Declarations For Backup Overload Protection
Inverter will restart itself if overload protection triggers. The preparation time for restarting will
be longer and longer (one hour at most) if overload protection repeats. Take following steps to
restart inverter immediately.
Decrease back-up load power within maximum limitation.
On The PV Master App > Advanced Settings > Click "Reset Backup Overload History".
2.4.5 Smart Meter & CT Connections
Make sure the AC cable is totally isolated from AC power before connecting the Smart
Meter and CT.
A Smart Meter with the CT in product box is compulsory for ES system installation. It can be
used to detect the grid voltages and current directions, provide the operating condition of the ES
inverter via RS485 communications. For more detailed information of the Smart Meter, refer to
the Smart Meter user manual in https://en.goodwe.com.
Note:
1. The Smart Meter with CT is already congured ; please do not change any settings on the Smart
Meter.
2. One Smart Meter can be used with only one ES inverter.
3. Three CTs must be used for one Smart Meter and must be connected on the same phase with the
Smart Meter power cable.
Smart Meter & CT connection diagram
Back-Up
SP3T
1
2
3
On-Grid
Grid
Load
• For Single Phase Grid
• For Three Phase Grid
To Smart Meter
CT
Grid
Load
PE
N
L
Grid side
GM1000
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