15
English
CAUTION
Be sure to attach the sealing material and putty (field supplied) to hole of wiring to prevent the infiltration
of water as well as any insects and other small creatures from outside. Otherwise a short-circuit may occur
inside the control box.
When clamping the wires, be sure no pressure is applied to the wire connections by using the included
clamping material to make appropriate clamps. Also, when wiring, make sure the lid on the control box fits
snugly by arranging the wires neatly and attaching the control box lid firmly. When attaching the control
box lid, make sure no wires get caught in the edges. Pass wiring through the wiring through holes to pre-
vent damage to them.
Make sure the remote controller wiring, the wiring between the units, and other electrical wiring do not
pass through the same locations outside the machine, separating them by at least 50mm, otherwise elec-
trical noise (external static) could cause mistaken operation or breakage.
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 service cover. Make sure the cover closes tight. Incomplete connections could result in overheating,
and in worse case, electric shock or fire.
[ PRECAUTIONS ]
1.
Use round crimp-style terminals for connecting wires to the power supply terminal block.
(Refer to Fig. 21)
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.)
•
When connecting wires of the same gauge, connect them according to Fig. 22.
•
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: 131N·cm ±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.
•
Do not connect wires of different gauge to the same ground terminal. Looseness in the connection may
deteriorate protection.
•
For remote controller wiring, refer to the “INSTALLATION MANUAL OF REMOTE CONTROLLER”
attached to the remote controller.
• Never connect wiring the units to the terminal block for remote controller. A mistake of the sort
could damage the entire system.
Terminal
Size
Tightening torque
Remote controller terminal block (5P)
M3.5
0.79 – 0.97 N·m
Power supply and ground terminal block (4P)
M4
1.18 – 1.44 N·m
Electric wire
Round crimp-style
Attach insulation sleeve
Fig. 21
01_EN_3P083811-3T.fm Page 15 Friday, September 3, 2004 10:17 AM
