Main Circuit Terminal And Motor Wiring - YASKAWA A1000 Series Technical Manual

3.8 Main Circuit Wiring
Model
CIMR-A
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
–, +1
4A0208
+3
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
–, +1
4A0250
+3
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
–, +1
4A0296
+3
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
–, +1
4A0362
+3
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
4A0414 –, +1
+3
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
4A0515 –, +1
+3
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
4A0675 –, +1
+3

◆ Main Circuit Terminal 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: Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits. Failure to comply could result in
damage to the drive, phase-advancing capacitors, LC/RC noise filters or ground fault circuit interrupters.
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.
■ Cable Length Between Drive and Motor
Voltage drop along the motor cable may cause reduced motor torque when the wiring between the drive and the motor is
too long, especially at low frequency output. This can also be a problem when motors are connected in parallel with a
70
Recommended Gauge
Terminal
Applicable
Gauge
mm
2
mm
95 35 to 95
95 35 to 95
– 35 to 150
– 25 to 70
50 50 to 150
120 95 to 300
120 95 to 300
– 70 to 300
– 35 to 300
70 70 to 240
185 95 to 300
185 95 to 300
– 70 to 300
– 35 to 300
95 95 to 240
240 95 to 300
240 95 to 300
– 95 to 300
– 70 to 300
120 120 to 240
95 × 2P
95 to 150
95 × 2P
95 to 150
– 70 to 150
– 70 to 150
95 35 to 95
120 × 2P 95 to 150
150 × 2P 95 to 150
– 70 to 150
– 70 to 150
150 50 to 150
95 × 4P 95 to 150
95 × 4P
95 to 150
– 70 to 150
– 70 to 150
95 × 2P 60 to 150
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Screw
Size
2
M10
M10
M12
M10
M12
M12
M10
M12
M12
M12
M12
Tightening
Torque
N m (lb.in.)
18 to 23
(159 to 204)
18 to 23
(159 to 204)
32 to 40
(283 to 354)
18 to 23
(159 to 204)
32 to 40
(283 to 354)
32 to 40
(283 to 354)
18 to 23
(159 to 204)
32 to 40
(283 to 354)
32 to 40
(283 to 354)
32 to 40
(283 to 354)
32 to 40
(283 to 354)