Main Circuit Terminal And Motor Wiring - YASKAWA A1000 Technical Manual

Model
CIMR-A
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
4A0675 –, +1
+3
R/L1, S/L2, T/L3, R1/L11, S1/L21, T1/
L31
U/T1, V/T2, W/T3
4A0930
–, +1
+3
R/L1, S/L2, T/L3, R1/L11, S1/L21, T1/
L31
U/T1, V/T2, W/T3
4A1200
–, +1
+3
<1> When using the wire of this gauge in accordance with IEC/EN 61800-5-1, install an equipment for residual current monitoring/detection
(RCM/RCD).
<2> When using the wire of this gauge in accordance with IEC/EN 61800-5-1, install an equipment for residual current monitoring/detection
(RCM/RCD), or use copper wire of 10 mm
Note: When connecting peripheral devices and options to the terminals –, +1, +3, B1, and B2, refer to the instruction manuals for each
devices. For more information, contact YASKAWA or your nearest sales representative.
 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 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
fairly long motor cable. 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
system configuration, reduce the ground currents.
Cable Length
Carrier Frequency
Note: 1. When setting carrier frequency in a drive running multiple motors, calculate the cable length as the total distance of wiring to all
motors that are connected.
2. The maximum cable length is 100 m when using OLV/PM (A1-02 = 5) or AOLV/PM (A1-02 = 6).
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Recomm. Gauge
Terminal
mm
95  4P
95  4P
95  2P
120  4P
120  4P
120  2P
(95  4P)  2
(95  4P)  2
95  4P
2
(AWG 8).
Table 3.6. If the motor wiring distance exceeds 100 m because of the
Refer to C6-02: Carrier Frequency Selection on page
Table 3.6 Cable Length Between Drive and Motor
50 m or less
15 kHz or less
Applicable
Gauge
2
2
mm
95 to 150
95 to 150
– 70 to 150
– 70 to 150
60 to 150
95 to 150
95 to 150
– 95 to 150
– 95 to 150
70 to 120
95 to 150
95 to 150
– 120 to 150
– 95 to 150
95 to 120
100 m or less
5 kHz or less
3.8 Main Circuit Wiring
Tightening
Screw
Torque
Size
Nm (lb.in.)
32 to 40
M12
(283 to 354)
32 to 40
M12
(283 to 354)
32 to 40
M12
(283 to 354)
196.
Greater than 100 m
2 kHz or less
3
81