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6.3. Unit wiring
Before attaching the cable to terminal block.
6.3.1. Power supply cable
Adjust the length of power supply cable to avoid excessive tension with referring figure
below.
Ground (earth)
cable
A. For solid core wiring
(1) To connect the electrical terminal, follow the below diagram and connect after looping
it around the end of the cable.
(2) Use the specified cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(3) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screw-
driver that is too small, otherwise, the screw heads may be damaged and prevent the
screws from being properly tightened.
(4) Do not tighten the terminal screws too much, otherwise, the screws may break.
(5) Refer to the table for the terminal screw tightening torques.
(6) Do not fix 2 power supply cables with 1 screw.
Strip 25 mm
Screw with
special washer
Cable
Cable end (Loop)
Terminal block
When using solid core cables, do not use the ring terminal. If you use the solid core
cables with the ring terminal, the ring terminal's pressure bonding may malfunction and
cause the cables to abnormally heat up.
B. For strand wiring
(1) Use ring terminals with insulating sleeves as shown in the figure below to connect to
the terminal block.
(2) Securely clamp the ring terminals to the cables using an appropriate tool so that the
cables do not come loose.
(3) Use the specified cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screw-
driver that is too small, otherwise, the screw heads may be damaged and prevent the
screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
(6) Refer to the table for the terminal screw tightening torques.
(7) Do not fix 2 power supply cables with 1 screw.
Strip 10 mm
Screw with
special washer
Cable
Ring terminal
Terminal block
Use ring terminals and tighten the terminal screws to the specified torques, otherwise,
abnormal overheating may be produced and possibly cause heavy damage inside the
unit.
M4 screw
(Power supply/L, N, GND)
6.3.2. Transmission and Remote controller cable
Transmission cable
25 mm
Shield cable
40 mm
(no film)
Connect remote controller and transmission cables as shown in Fig. A.
En-11
10 mm
20 mm
Screw with spe-
cial washer
Cable end
(Loop)
Cable
WARNING
Ring terminal
Sleeve
Screw with
special washer
Ring
terminal
Cable
WARNING
Tightening torque
1.2 to 1.8 N·m
(12 to 18 kgf·cm)
Remote controller cable
20 mm
Fig. A
GOOD
Tighten the terminal screws to the specified torques, otherwise, abnormal overheating
may be produced and possibly cause heavy damage inside the unit.
M3 screw (Transmission/X1, X2)
(Remote controller/ Y1, Y2)
To peel the film from the lead cable, use a dedicated tool that will not damage the
conductor cable.
When installing a screw on the terminal block, do not cut the cable by overtightening the
screw. On the other hand, an undertightened screw can cause faulty contact, which will
lead to a communication failure.
Loop
6.4. Connection of wiring
(1) Remove the cover.
(2) Connect the connection cable.
Power supply
cable
Do not bind the power supply cable and other cables together.
PROHIBITED
Different diameter
WARNING
Terminal number
CAUTION
Y2
Y1
X2
X1
N
L
Avoid touching the ceiling with the wiring
Ceiling
Connect to 1 side
Tightening torque
0.5 to 0.6 N·m
(5 to 6 kgf·cm)
Cover
Screw
Y1,Y2: Remote
controller cable
Ground, X1, X2:
Transmission cable
Not used.
Cable clamp
L, N: Power supply cable
Ground
Cable tie (medium)
(accessories)
Avoid covering the air
inlet with the wiring.
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