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Energy Monitoring Relay Interface
5
Connection of power cables / earth wires /
communication cables
CAUTION
• The RS-485 communication cable has polarity. Connect A to A, and B to B. If connected with incorrect polarity, the
unit will not work.
Power cables / earth wires / communication cables
Connect power cables, earth wires, and communication cables to the specified terminals on the terminal block.
Connect the
earth wire to the
earth terminal on
the chassis.
Remove the grommet from the power
supply wire hole. Attach the conduit
pipe to the plate with a lock nut.
Use 1/2 inch conduit pipe.
Conduit pipe
Power supply wire hole
(Ø7/8" (22.2))
REQUIREMENT
Disconnect the appliance from the main power supply.
This appliance must be connected to the main power supply by a circuit breaker or switch with a contact separation
of at least 3 mm.
Fasten the screws to the terminal with torque of 0.5 Nm.
5-EN
Smart BMS Manager
Power meter
Secure each cable with a
cable clamp.
Lock nut
Power
supply
120 VAC,
60 Hz
Length of stripped
power cable
1.38"
(35)
2.17"
(55)
To connect 2 cables, change the
preset cable clamp to the
provided one and fix the cables
with the cable clamp as shown in
the figure.
Length of stripped
communication cable
1.38"
(35)
0.39" (10)
0.39" (10)
Insert the wire by pushing
the lever with a
screwdriver.
Check that the wire is
inserted securely.
– 5 –
Installation Manual
SW7
LED5
SW3
SW2
1 2 3 4
SW6
Length of stripped
power meter wire
1.38"
(35)
0.24" (6)
When inserting two RS-485
communication cables into a single
terminal for connection to another
interface, crimp them using the
attached pin terminal.
LED4
LED2
LED3
LED1
SW1
SW4
0.24" (6)
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