Chapter 3 Environment description and installation
3-7
3.3 Wiring Rules
3.3.1 Notice for wiring
A.
Screwdriver torque:
Connect cables with a screwdriver or other suitable tools and follow the torque listed below.
Securing torque
Horsepower
Power source
Nominal torque for TM1 terminal
0.25/0.5/1 100-120V
0.25/0.5/1 200-240V
0.74/0.1
(LBS-FT / KG-M)
8.66/10
(LBS-IN/KG-CM)
2/3 200-240V
1/2/3 380-480V
1.286/0.18
(LBS-FT/KG-M)
15.97/18
(LBS-IN/KG-CM)
B. Power wires:
Power wires are wires connected to L1(L), L2, L3 (N), T1, T2, T3, P and N. Choose wires in
accordance with the following criteria:
(1) Use wires with copper cores only. Select wires of insulating materials with diameters based
on working conditions at 105
o
C.
(2) For nominal voltage of wires, the minimum voltage of 240Vac type is 300V, and 480Vac
type is 600V.
C. Control wire:
Control wire is connected to TM2 control terminal. Choose the wire in accordance with the
following criteria:
(1) Use wires with copper cores only. Select wires of insulating materials with diameters based
on working conditions at 105
o
C.
(2) For nominal voltage of wires, the minimum voltage of 240Vac type is 300V, and 480Vac
type is 600V.
(3) To avoid noise interference, do not route the control wire in the same conduit with power
wires and motor wires.
D. Nominal electrical specifications of the terminal Block:
The following are nominal values of TM1:
Horsepower Power
source Volts
Amps
0.25 / 0.5 / 1
100-120V
0.25 / 0.5 / 1
200-240V
600
15
2 / 3
200-240V
1 / 2 / 3
380-480V
600 40
※
Note: Nominal values of input and output signals (TM2) – follow the specifications of class 2
wiring.
