Chapter 3 Environment description and installation
3-7
3.3
Electrical Installation
3.3.1 Notes for wiring
A.
Screwdriver torque:
Connect cables and tighten to the torques listed below.
Tightening torque
Horsepower
KW
Power source
Nominal tightening torque for TM1 terminals
0.25/0.5/1 0.2/0.4/0.75
100-120V
0.25/0.5/1 0.2/0.4/0.75
200-240V
0.74/0.1
(lbs-ft / Kg-m)
8.66/10
(lbs-in / Kg-cm)
2/3 1.5/2.2 200-240V
1/2/3 0.75/1.5/2.2 380-480V
1.286/0.18
(lbs-f t / Kg-m)
15.97/18
(lbs-in / Kg-cm)
B. Power cables (connected to TM1):
Power cables are connected to L1(L), L2, L3 (N), T1, T2, T3, P and N. Choose cable in
accordance with the following criteria:
(1) Use cable with copper cores only. Select cable with insulation diameter based on working
conditions at 221
o
F / 105
o
C.
(2) For nominal voltage ratings, use cable rated at minimum 300V for 240Vac
iDrive
and
600V rated cable for 480Vac
iDrive
.
C. Control cables (connected to TM2):
Control cables are connected to TM2 control terminals. Choose cable in accordance with the
following criteria:
(1) Use cable with copper cores only. Select cable with insulation diameter based on working
conditions at 221
o
F / 105
o
C.
(2) For nominal voltage ratings, use cable rated at minimum 300V for 240Vac
iDrive
and
600V rated cable for 480Vac
iDrive
.
(3) To avoid noise interference, do not run control cables in the same conduit or trunking as
power cables. Where possible use screened / shielded control cables to minimise
electromagnetic interference. To avoid ground loops always earth the shield at one end
only.
D. Nominal electrical specifications of terminal block TM1:
KW HP
Power
source
Volts
Amps
0.2 / 0.4 / 0.75
0.25 / 0.5 / 1
100-120V
0.2 / 0.4 / 0.75
0.25 / 0.5 / 1
200-240V
600
15
1.5 / 2.2
2 / 3
200-240V
0.75 / 1.5 / 2.2
1 / 2 / 3
380-480V
600 40