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8-2. Energy Monitoring Relay Interface (BMS-IFWH5E)
The following settings are necessary to use Energy Monitoring Relay Interfaces.
Address setting 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.
RS-485 terminator resistor
setting
Set SW7 as “120 ohm” on a Energy Monitoring Relay Interface with address SW1=1, and “Open” on
the other interfaces.
SW1 Address set switch
1-4 Address
0, 5-F Not used
SW2 Operating mode set switch (0 usually)
SW3 Test switch (all OFF usually)
SW4 Test switch
SW6 Reset switch
SW7
RS-485 terminator resistor select switch
120 ohm Open
LED1 Power indicator
LED2 RS-485 communication status indicator
LED3 Not used
LED4 Test indicator
LED5 Test indicator
ON
ON
L
N
BASG
RS-485
DI1
DI6DI2
DI4
DI3
DI7
DI8DI5
1234
LED1
LED2
LED3
LED4
LED5
SW1SW2SW3
SW4SW6
SW7
+ -+ -+ -+ -+ -+ -+ -+ -
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