Toshiba BMS-SM1280HTLE Service Manual page 25

8-3. Digital Input / Output Relay Interface (BMS-IFDD03E)
The following settings are necessary to use Digital Input / Output Relay Interfaces.
Address setting
RS-485 terminator resistor
setting
12V
GND
DO1
DO2
DO3
DO4
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.
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.
LED4 LED2
SW7
LED5 LED3 LED1
SW3 SW2 SW1
1 2 3 4
SW6 SW4
LED9 LED7
LED8 LED6
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
25
Address
Not used
ON
Open