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Energy Monitoring Relay Interface
6
Setting
The following settings are necessary to use Energy Monitoring Relay Interfaces.
• SW1
Address set switch
When two or more Energy Monitoring Relay Interfaces are used, set a different address for each unit to
avoid address duplication.
Assign addresses in an ascending order.
CAUTION
• When the SW1 setting has been changed, push reset switch SW6. The new address setting is read.
• You can set the Energy Monitoring Relay Interface address independently from the Digital Input / Output
Relay Interface address.
• 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
• Set SW7 as "120 ohm" on a Energy Monitoring Relay Interface with address SW1=1, and "Open" on
the other interfaces.
• When a Digital Input / Output Relay Interface is used with these interfaces in the same system,
terminator resistor setting on the Digital Input / Output Relay Interface is not necessary.
LED4
LED2
SW7
LED5
LED3
LED1
SW3
SW2
SW1
1 2 3 4
SW6
SW4
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
– 8 –
Installation Manual
Address
Not used
ON
Open
8-EN
EN
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