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2) Explanations on
RS485C communication terminal and connector
Communication output terminal (inside the inverter)
:
RS485
Communication
BUS(+)
BUS(-)
Red
Black
①
②
Communication connector terminal (outside the inverter)
:
R485 communication terminal is designed as above.
Communication connector is an optional item. Please inquire with our company if you need
communication connection.
3) Setting of
communication protocol
This product supports 2 different communication protocol modes, namely, Dass Tech protocol and
integrated new renewable energy convergence support monitoring system (REMS).
The basic value is set at integrated new renewable energy convergence support monitoring system
(REMS) at the time of shipping from the factory. ID is set at
‘1’ as the basic value.
There is a need to change the communication protocol setting at the time of using Dass Tech protocol.
After having accessed Setting menu - Selection Set
– REMS Monitor menu, change the set value to
Disable and save with Enter key. Then, cut off the input power to and discharge inverter prior to
reconnecting the power to convert to Dass Tech protocol.
3.4 Wiring
3.4.1 Main circuit wiring
1) Precautions at the time of wiring the main circuit
For input power, connect the
CH1/CH2(+)terminal of solar cell panel to the internal
PV1(+)/PV2(+)
terminal inside the junction box
and
CH1/CH2(-)terminal of solar cell panel to
the PV1(-)/PV2(-)terminal inside the junction box
before inputting power.
Take precaution against loss due to fire arising from erroneous wiring of the junction box.
Do not disassemble connector during operation.
In the event of emergency power OFF during operation, turn OFF the DC switch of junction box.
