Chapter 3 Environment description and installation
3-7
3.3 Wiring Rules
3.3.1 Notice for wiring
A.
Tightening torque:
Connect cables with a screwdriver or other suitable tools per the tightening torques listed below.
Securing torque
Horsepower
Power source
Tightening 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 connect to terminals L1(L), L2, L3 (N), T1, T2, T3, P and N. Select power wire in
accordance with the following criteria:
(1) Use wires with copper core only. Insulating materials with diameters should be based on
working conditions at 221
o
F (105
degree C
).
(2) The minimum nominal voltage of 240Vac type connectors is 300V, and 480Vac type
connector is 600V.
C. Control wire:
Control wire is connected to the TM2 control terminal. Select wire in accordance with the
following criteria:
(1) Use copper core only. The insulating materials with diameters should be based on working
conditions at 221
o
F (105
degree C
).
(2) To avoid noise interference, do not route the control wiring in the same conduit with power
wires and motor wiring.
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.
