Main Circuit Terminal And Motor Wiring - YASKAWA T1000A Technical Manual

3.7 Main Circuit Wiring
Model
CIMR-T
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
<1> When an EMC filter is installed, additional measures must be taken in order to comply with IEC61800-5-1. Refer to
on page 477.
Note: Refer to the related instruction manuals for the applicable wire gauges when connecting peripheral devices to terminals -, +1, +3,
B1, and B2. Contact your Yaskawa representative or the nearest Yaskawa sales office directly for consultation if using a wire
gauge not listed in the manual.
u 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.
n
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).
58
Recommended Gauge
Terminal
Table
Refer to C6-02: Carrier Frequency Selection on page
Table 3.5 Cable Length Between Drive and Motor
50 m or less
15 kHz or less
YASKAWA ELECTRIC SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
Applicable
Gauge
mm 2
mm 2
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
3.5. If the motor wiring distance exceeds 100 m because of the
100 m or less
5 kHz or less
Tightening
Screw
Torque
Size
N m (lb.in.)
18 to 23
M10
(159 to 204)
18 to 23
M10
(159 to 204)
32 to 40
M12
(283 to 354)
18 to 23
M10
(159 to 204)
32 to 40
M12
(283 to 354)
32 to 40
M12
(283 to 354)
18 to 23
M10
(159 to 204)
32 to 40
M12
(283 to 354)
EMC Filter Installation
152.
Greater than 100 m
2 kHz or less