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Digital Input / Output Relay Interface
6
Setting
12 V
GND
DO1
DO2
DO3
DO4
The following settings are necessary to use Digital Input / Output Relay Interfaces.
• SW1
Address set switch
When two or more Digital Input / Output Relay Interfaces are used, set a different address for each unit
to avoid address duplication.
Assign addresses in ascending order.
CAUTION
• When the SW1 setting has been changed, push the reset switch SW6. The new address setting is read.
• Address of Digital Input / Output Relay Interface can be set independently from Energy Monitoring Relay
Interface.
• SW2
Operation mode set switch
• SW3
Test switch
• SW4
Test switch
• SW6
Reset switch
When performing an address setting with SW1, push this reset switch after the address setting to read
the set value.
• SW7
RS-485 terminator resistor select switch
Terminator resistor of RS-485 must be set on Energy Monitoring Relay Interface.
When Digital Input / Output Relay Interface is used without Energy Monitoring Relay Interface, set it
[120 ohm] on Digital Input / Output Relay Interface with address SW1=1 and, set it [Open] on the other
Interfaces.
LED4
LED2
SW7
LED5
LED3
LED1
SW3
SW2
SW1
1 2 3 4
SW6
SW4
LED9
LED7
LED8
LED6
These switches are not used during normal operation. Set zero (0) or "all
OFF".
SW1
Address set switch
1-8
0, 9-F
SW2
Operating mode set switch (0 usually)
SW3
Test switch (all OFF usually)
SW4
Test switch
SW6
Reset switch
RS-485 terminator resistor select switch
ON
SW7
120 ohm
LED1
Power indicator
LED2
RS-485 communication status indicator
LED3
Not used
LED4
Test indicator
LED5
Test indicator
LED6 -LED9
Digital output indicator
– 8 –
Installation Manual
Address
Not used
ON
Open
8-EN
EN
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