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YASKAWA ELECTRIC
SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Model
Terminals
Recommended
Gauge
mm
2
Applicable
Gauge
(IP20
Applicable
Gauge
)
mm
2
Wire
Stripping
Length
mm
Terminal Screw
Tightening
Torque
N
∙
m (lb.
∙
in.)
Size
Shape
4675
R/L1, S/L2, T/L3
R1/L11, S1/L21, T1/
L31
120 × 4P
70 - 150 × 4P
(150 × 4P)
-
M12
Hex self-locking nut
35
(310)
U/T1, V/T2, W/T3
95 × 4P
70 - 150 × 4P
(120 - 150 × 4P)
-
M12
Hex self-locking nut
35
(310)
-, +1
95 × 4P
95 - 185 × 4P
(185 × 4P)
-
M12
Hex self-locking nut
35
(310)
+3
70 × 4P
35 - 95 × 4P
(95 × 4P)
-
M12
Hex self-locking nut
35
(310)
95 × 2P
60 - 150
(-)
-
M12
Hex bolt (slotted)
32 - 40
(283 - 354)
*1
For IP20 protection, use wires that are in the range of applicable gauges.
*2
Remove insulation from the ends of wires to expose the length of wire shown.
*3
For wire gauges more than 30 mm
2
, tighten to a tightening torque of 4.1 N∙m to 4.5 N∙m (36 lb.∙in. to 40 lb.∙in.).
*4
Install an RCM/RCD with this wire gauge to maintain compliance with IEC/EN 61800-5-1:2007.
*5
Terminals - and +1 have two screws. The Recommended Gauge is the wire gauge for one terminal.
*6
A junction terminal is necessary to connect a braking resistor unit (LKEB-series) to terminals B1 and B2.
◆
Main Circuit Terminal and Motor Wiring
This section outlines the various steps, precautions, and checkpoints for wiring the main circuit terminals and
motor terminals.
WARNING!
Electrical Shock Hazard. Do not connect the AC power line to the output terminals of the drive. Failure to obey can
cause death or serious injury by fire.
NOTICE:
Make sure that you align the phase order for the drive and motor when you connect the motor to drive output
terminals U/T1, V/T2, and W/T3. Failure to obey correct wiring procedures can cause the motor to run in reverse if the phase
order is incorrect.
NOTICE:
Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits. Failure to obey can cause
damage to the drive, phase-advancing capacitors, LC/RC noise filters, and leakage breakers (ELCB, GFCI, or RCM/RCD).
■
Cable Length Between Drive and Motor
When the wiring between the drive and the motor is too long, voltage drop along the motor cable can decrease
motor torque, usually at low frequency output. If you connect motors in parallel with long motor cable, this is also
a problem. Drive output current increases when the leakage current from the cable increases. An increase in
leakage current can cause overcurrent and decrease the precision of the current detection.
Use the values in
to adjust the drive carrier frequency. When the system configuration makes the motor
wiring distance more than 100 m (328 ft), do not use metal conduits or use isolated cables for each phase to
decrease stray capacitance.
Table 2.17 Carrier Frequency against Cable Length Between Drive and Motor
Cable Length Between Drive
and Motor
Up to 50 m (164 ft.)
Up to 100 m (328 ft.)
More than 100 m (328 ft.)
Carrier Frequency
15 kHz or less
5 kHz or less
2 kHz or less
Note:
•
To set the carrier frequency in a drive that is operating more than one motor, calculate the cable length as the total distance of wiring to
all connected motors.
•
IN OLV/PM and AOLV/PM [
A1-02 = 5 and 6
], the maximum cable length is 100 m (328 ft.).
•
When you connect to a PM motor, it can be necessary to adjust the overcurrent detection. Refer to
L8-27: Overcurrent Detection Gain
for more information.
■
Ground Wiring
Follow the precautions to wire the ground for one drive or a series of drives.