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Energy Monitoring Relay Interface
Installation Manual
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.
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 3mm.
Fasten the screws to the terminal with torque of 0.5Nm.
LN
B
A
SG
RS-485
DI
1
D
I6
DI
2
DI
4
DI
3
D
I7
DI
8
DI
5
1 2 3 4
LED1
LED2
LED3
LED4
LED5
SW1
SW2
SW3
SW4
SW6
SW7
+ -
+ -
+ -
+ -
+ -
+ -
+ -
+ -
35
35
35
6
6
10
35
10
Power supply
220-240VAC
(50/60Hz)
Length of stripped
power cable
Length of stripped
communication cable
Power meter
Touch Screen Controller or other
central controller
Length of stripped
power meter wire
Insert the wire by pushing
the lever with a
screwdriver.
Check that the wire is
inserted securely.
When inserting two RS-485
communication cables into a single
terminal for connection to another
interface, crimp them using the
attached pin terminal.
Secure each cable with a
cable clamp.
Secure each
cable with a
cable clamp.
Connect the
earth wire to the
earth terminal on
the chassis.
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.
5-EN
