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Digital Input / Output Relay Interface
Connection diagram
Smart BMS
Manager
The RS-485 communication cable must
be earthed on Smart BMS Manager. It
does not have to be earthed on Digital
Input / Output Relay Interface.
Set the Digital Input / Output Relay
Interface address with SW1. Assign 1 to 8
to each address to avoid duplication. You
can set the Digital Input / Output Relay
Interface address independently from the
Energy Monitoring Relay Interface
address.
CAUTION: The SW1 setting is read when
the power is turned on. Push the reset
switch (SW6) after changing the address.
Set the RS-485 terminator resistor on an
Energy Monitoring Relay Interface.
Set SW7 as "120 ohm" on a Digital Input /
Output Relay Interface with address
SW1=1, when the Digital Input / Output
Relay Interface is used in a system without
Energy Monitoring Relay Interface. Set
SW7 as "Open" on the other interfaces.
7-EN
Input contact 1
Input contact 2
Input contact 3
Input contact 4
Input contact 5
Input contact 6
Input contact 7
Input contact 8
Load 1
Load 2
Load 3
Load 4
Power supply
Input contact 1
Input contact 2
Input contact 3
Input contact 4
Input contact 5
Input contact 6
Input contact 7
Input contact 8
Load 1
Load 2
Load 3
Load 4
Power supply
– 7 –
Installation Manual
The RS-485 signal
wire has polarity A
and B. Be careful
when connecting
the wire.
SW7
DI1
SW1
DI2
4
DI3
DI4
DI5
DI6
DI7
DI8
12 V
GND
DO1
DO2
DO3
DO4
SW7
DI1
SW1
DI2
1
DI3
DI4
DI5
DI6
DI7
DI8
12 V
GND
DO1
DO2
DO3
DO4
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