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Drive
Model
Terminal
Recomm.
Gauge
AWG, kcmil
Wire Range
AWG, kcmil
Screw
Size
Tightening
Torque
N•m (lb.in.)
4A0023
R/L1, S/L2, T/L3
10
10 to 6
M4
2.1 to 2.3
(18.6 to 20.4)
U/T1, V/T2, W/T3
10
10 to 6
⊖
,
⊕
1,
⊕
2
–
10 to 6
B1, B2
–
14 to 10
8
10 to 6
M5
2 to 2.5
(17.7 to 22.1)
4A0031
R/L1, S/L2, T/L3
8
10 to 6
M5
3.6 to 4.0
(31.8 to 35.4)
U/T1, V/T2, W/T3
8
10 to 6
⊖
,
⊕
1,
⊕
2
–
10 to 6
B1, B2
–
14 to 10
2.7 to 3.0
(23.9 to 26.6)
6
10 to 6
M6
5.4 to 6.0
(47.8 to 53.1)
4A0038
R/L1, S/L2, T/L3
6
10 to 6
M5
3.6 to 4.0
(31.8 to 35.4)
U/T1, V/T2, W/T3
8
10 to 6
⊖
,
⊕
1,
⊕
2
–
10 to 6
B1, B2
–
10 to 8
2.7 to 3.0
(23.9 to 26.6)
6
10 to 6
M6
5.4 to 6.0
(47.8 to 53.1)
u
Main Circuit Terminal Power Supply and Motor Wiring
This section outlines the various steps, precautions, and checkpoints for wiring the main circuit terminals and motor terminals.
NOTICE: When connecting the motor to the drive output terminals U/T1, V/T2, and W/T3, the phase order for the drive and motor should
match. Failure to comply with proper wiring practices may cause the motor to run in reverse if the phase order is backward.
NOTICE: Route motor leads U/T1, V/T2, and W/T3 separate from all other leads to reduce possible interference related issues. Failure to
comply may result in abnormal operation of drive and nearby equipment.
NOTICE: Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits. Improper application of noise filters could
result in damage to the drive.
NOTICE: Do not connect the AC power line to the output motor terminals of the drive. Failure to comply could result in death or serious
injury by fire as a result of drive damage from line voltage application to output terminals.
n
Cable Length Between Drive and Motor
When the cable length between the drive and the motor is too long (especially at low frequency output), note that the cable
voltage drop may cause reduced motor torque. Drive output current will increase as the leakage current from the cable increases.
An increase in leakage current may trigger an overcurrent situation and weaken the accuracy of the current detection.
Adjust the drive carrier frequency according to the following table. If the motor wiring distance exceeds 100 m because of the
system configuration, reduce the ground currents.
Refer to C6-02: Carrier Frequency Selection on page 156
to set the carrier frequency to an appropriate level.
Table 3.5 Cable Length Between Drive and Motor
Cable Length
50 m or less
100 m or less
Greater than 100 m
Carrier Frequency
15 kHz or less
5 kHz or less
2 kHz or less
Note:
When setting carrier frequency, calculate the cable length as the total distance of wiring to all connected motors when running multiple
motors from a single drive.
3.6 Main Circuit Wiring
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
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Electrical Installation