11
Pin Definition Function
Description
Pin Definition Function
Description
1
485A1-1
RS485A,
RS485
differential
Used to cascade
inverters or
connect to the
RS485 signal
port on the
SmartLogger
2
485A1-2
RS485A,
RS485
differential
Used to cascade
inverters or
connect to the
RS485 signal port
on the
SmartLogger
3
485B1-1
RS485B,
RS485
differential
signal–
4
485B1-2
RS485B,
RS485
differential
signal–
5
PE
Shielding
ground
N/A
6
PE
Shielding
ground
N/A
7
485A2
RS485A,
RS485
differential
Used to connect
to the RS485
signal port on
devices such as
the Smart
Power Sensor
and the energy
storage device
8
DIN1
Digital
input
signal 1+
Used to connect to
dry contacts for
grid scheduling or
serve as a port for
the feedback
signal of the
Backup Box.
9
485B2
RS485B,
RS485
differential
signal–
10
DIN2
Digital
input
signal 2+
Dry contact for
grid scheduling
11 EN
Enabling
signal
Used to connect
to the enable
signal port on
an energy
storage device
12
DIN3
Digital
input
signal 3+
13 GND
GND
Used to connect
to the rapid
shutdown DI
signal port or
serve as a port
for the signal
cable of the NS
protection.
14
DIN4
Digital
input
signal 4+
15 DIN5
Rapid
shutdown
16
GND
GND of
DIN1/DIN2
/DIN3/DIN
4
Used to connect to
the GND of
DIN1/DIN2/DIN3/
DIN4
•
When the RS485 communications cables of devices such as the Smart Power Sensor and the
energy storage device are both connected to the inverter, 485A2 (pin 7), 485B2 (pin 9), and
PE (pin 5) are shared.
•
When the enable signal cable of the energy storage device and the signal cable of the rapid
shutdown switch are both connected to the inverter, GND (pin 13) is shared.
