Main Circuit Terminal And Motor Wiring - YASKAWA CIPR-CR70A Series Technical Manual

2 Mechanical & Electrical Installation
Model Terminals
R/L1, S/L2, T/L3
R1/L11, S1/L21, T1/
L31
U/T1, V/T2, W/T3
4605
-, +1
+3
*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
*4 Terminals - and +1 have two screws. The Recommended Gauge is the wire gauge for one terminal.
*5 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.
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).
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.
Cable Length Between Drive and Motor
Voltage drop along the motor cable may cause decreased 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 the following table. If the motor wiring distance exceeds 100 m
because of the system configuration, implement strategies such as avoiding the use of metal conduits, or use
separate cables for each phase so that stray capacitance is decreased.
Cable Length Between Drive
and Motor
Carrier Frequency
Note:
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.
Ground Wiring
Follow the precautions to wire the ground for one drive or a series of drives.
WARNING Electrical Shock Hazard. The leakage current of drive models 4371A to 4605A, 2xxxB/C and 4xxxB/C is more
than 3.5 mA. The IEC/EN 61800-5-1: 2007 standard specifies that users must wire the power supply to automatically turn off
when the protective ground wire disconnects. Users can also connect a protective ground wire that has a minimum cross-
sectional area of 10 mm 2 (copper wire) or 16 mm
injury.
76
Applicable
Gauge
Recommen
(IP20
ded Gauge
Applicable
mm 2
Gauge )
*1
mm 2
60 - 125 × 4P
125 × 4P
(125 × 4P)
60 - 150 × 4P
100 × 4P
(125 - 150 ×
4P)
80 - 150 × 4P
125 × 4P
(150 × 4P)
30 - 125 × 4P
100 × 4P
(100 - 125 ×
4P)
60 - 150
60
(-)
2 , tighten to a tightening torque of 4.1 to 4.5 N∙m (36 to 40 lb.∙in.).
Up to 50 m
15 kHz or less
2 (aluminum wire). Failure to obey these standards can cause death or serious
YASKAWA ELECTRIC SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
Terminal Screw
Wire
Stripping
Length
*2
Size Shape
mm
Hex self-
- M12
locking nut
Hex self-
- M12
locking nut
Hex self-
- M12
locking nut
Hex self-
- M12
locking nut
Hex bolt
- M12
(slotted)
Up to 100 m More than 100 m
5 kHz or less
Tightening
Torque
N∙m (lb.∙in.)
35
(310)
35
(310)
35
(310)
35
(310)
32 - 40
(283 - 354)
2 kHz or less