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ELECTRICAL CONNECTION
03
Electrical Connection
3.1 Installation Notice
a) Electrical device should be installed, operated, serviced, and maintained only by
qualified personnel. No responsibility is assumed by the manufacturer for any
consequences arising out of the use of this device. A qualified person is one who has
skills and knowledge related to the construction, installation and operation of electrical
device and who has received safety training to recognize and avoid the hazards involved.
b) All applicable local, regional, and national regulations must be respected when
installing, repairing, and maintaining this device.
c) Maximum length of the communication cable between the EV-charger and the energy
storage system must be less than 100m.
3.2 System Wiring Diagram
For combining with AlphaESS energy storage system, the EV charger should be installed
as the below diagram.
RS485
LOADS
Alpha Cloud
ESS System
Note: the EV charger should be installed behind the grid meter.
If you have installed a Backup Box, the EV charger should be installed as the below
diagram.
RS485
Grid
EV-Charger
PV Panels
07
08
LOADS
Alpha Cloud
Note: the EV charger should be installed between the grid meter and the backup box.
The backup box does not support access to communication of ESS temporarily.
3.3 Overview of the Connection Area
3.3.1 AC Charger Appearance
Front side view
State
Im Standby
Charging status
Plugged charging
connector state
Software upgrade
Ground warning
Relay adhesion
For details please
refer to 5.1
ELECTRICAL CONNECTION
BB
EV-Charger
ESS Sytem
PV PANELS
Reminder-Light
Communication Connection
Front Panel Display
LED Indicator Instruction
Description
LED Status
Normal
Flashing green, 1S on, 4S off
Normal
Breathing green, 1S on, 1S off
Normal
Breathing yellow, 1S on, 1S off
Normal
Green light flash
Normal
Flashing yellow, 2S on, 2S off
Fault
Red light normally on
Fault
Flashing red
GRID
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