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18 English
[ PRECAUTIONS ]
1. Use round crimp-style terminals for connecting wires to the power supply terminal block.
If unavailable, observe the following points when wiring.
• Do not connect wires of different gauge to the same power supply terminal.
(Looseness in the connection may cause overheating.)
• Use the specified electric wire. Connect the wire securely to the terminal. Lock the wire down without
applying excessive force to the terminal. (Tightening torque: 1lbf·ft. ±10 %)
2. Tightening torque for the terminal screws.
• Use the correct screwdriver for tightening the terminal screws. If the blade of screwdriver is too small, the
head of the screw might be damaged, and the screw will not be properly tightened.
• If the terminal screws are tightened too hard, screws might be damaged.
• Refer to the table below for the tightening torque of the terminal screws.
When none is available, follow the instructions below.
3. Do not connect wires of different gauge to the same grounding terminal.
Looseness in the connection may deteriorate protection.
4. Outside the unit, keep transmission wiring at least 2in. away from power supply wiring. The equipment
may malfunction if subjected to electrical (external) noise.
5. For remote controller wiring, refer to the “INSTALLATION MANUAL OF REMOTE CONTROLLER.”
attached to the remote controller.
6. Never connect power supply wiring to the terminal block for remote controller. A mistake of the
sort could damage the entire system.
7. Use only specified wire and tightly connect wires to terminals. Be careful wires do not place external stress
on terminals. Keep wiring in neat order and so as not to obstruct other equipment such as popping open
the control box cover. Make sure the cover closes tight. Incomplete connections could result in overheat-
ing, and in worse case, electric shock or fire.
8. Pass the power supply wire through the attached insulation tube (16) between the outlet of conduit and the
power supply terminal, and bind them together with the attached clamp (4). (Refer to Fig. 27-2)
9. Use a pair of conduit mounting plate (17) and (18) to connect a conduit to the unit as shown Fig. 27-1.
Terminal Size Tightening torque
Terminal block for remote controller (6P) M3.5 0.58 – 0.72lbf·ft
Power supply terminal block (3P) M4 0.87 – 1.06lbf·ft
Fig. 25
Electric wire
Round crimp-style terminal
Attach insulation sleeve
Connect wires of the
same gauge to both
side.
Do not connect wires
of the same gauge to
one side.
Do not connect wires
of different gauges.
Fig. 26
01_EN_3P161684-6K.fm Page 18 Friday, September 16, 2011 10:00 PM
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