Model Terminal
Recomm. Gauge
AWG, kcmil
Wire Range
AWG, kcmil
Screw
Size
Tightening Torque
N·m (lb.in.)
4A0590
<1>
R/L1, S/L2, T/L3 3/0 × 4
3/0 to 300 M12
32.0 to 40.0
(283 to 354)
U/T1, V/T2, W/T3 3/0 × 4
–, +1 –
+3 –
–
<1> Drive models 4A0034 to 4A0590 require the use of closed-loop crimp terminals for UL/cUL compliance. Use only the tools recommended by the
terminal manufacturer for crimping.
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.
WARNING! Electrical Shock Hazard. 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.
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: Route motor leads U/T1, V/T2, and W/T3 separate from all other leads to reduce possible interference related issues. Failure to
comply may result in abnormal operation of drive and nearby equipment.
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.
n
Ground Wiring
Follow the precautions below when wiring the ground for one drive or a series of drives.
DANGER! Electrical Shock Hazard. Do not touch SW1 or SW2 screws while power is applied to the drive. Failure to comply will result in
death or serious injury.
WARNING! Electrical Shock Hazard. Make sure the protective earthing conductor complies with technical standards and local safety
regulations. Because the leakage current exceeds 3.5 mA, IEC/EN 61800-5-1 states that either the power supply must be automatically
disconnected in case of discontinuity of the protective earthing conductor or a protective earthing conductor with a cross-section of at least
10 mm
2
(Cu) or 16 mm
2
(Al) must be used. Failure to comply may result in death or serious injury.
WARNING! Electrical Shock Hazard. Always use a ground wire that complies with technical standards on electrical equipment and minimize
the length of the ground wire. Improper equipment grounding may cause dangerous electrical potentials on equipment chassis, which could
result in death or serious injury.
WARNING! Electrical Shock Hazard. Be sure to ground the drive ground terminal (200 V class: ground to 100 Ω or less and 400 V class:
ground to 10 Ω or less). Improper equipment grounding could result in death or serious injury by contacting ungrounded electrical equipment.
NOTICE: Do not share the ground wire with other devices such as welding machines or large-current electrical equipment. Improper
equipment grounding could result in drive or equipment malfunction due to electrical interference.
NOTICE: When using more than one drive, ground multiple drives according to instructions. Improper equipment grounding could result in
abnormal operation of drive or equipment.
Refer to Figure i.20 when using multiple drives. Do not loop the ground wire.
Figure i.20 Ground Wiring for Multiple Drives
i.4 Electrical Installation
YASKAWA ELECTRIC TOEP C710616 54A YASKAWA AC Drive - Z1000 Quick Start Guide
27
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