YASKAWA CR700, Technical Manual, Page: 94 / 886

2.13 Main Circuit Terminal Block Wiring Procedure
94 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
2.13 Main Circuit Terminal Block Wiring Procedure
DANGER! Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized drive. Before servicing,
disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The internal capacitor
stays charged after the drive is de-energized. The charge indicator LED extinguishes when the DC bus voltage decreases
below 50 Vdc. When all indicators are OFF, remove the covers before measuring for dangerous voltages to make sure that the
drive is safe. If you do work on the drive when it is energized, it will cause serious injury or death from electrical shock.
The procedures to wire the main circuit terminal block are different for different drive models. Refer to Table 2.13
for more information.
Table 2.13 Types of Wiring Procedure for the Main Circuit Terminal Block
Model Procedure
2003 - 2180
4002 - 4150
Procedure A
2215 - 2415
4180 - 4605
Procedure B
◆
Wire the Main Circuit Terminal Block with Procedure A
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Notes on Wiring the Main Circuit Terminal Block
• Use copper wire. Do not use alumnium or other non-copper wire.
• Remove all unwanted objects that are near the terminal block connections.
• Remove the insulation from the connection wires to the wire stripping lengths shown in the manual.
• Do not use bent or crushed wires. Remove the damaged end of the wire before you use it.
• Do not solder stranded wire.
• If you use stranded wire, make sure that all of the wire strands are in the connection. Also, do not twist the
stranded wire too much.
• Put the wire all the way into the terminal block. Remove the insulation from the wire to the recommended wire
stripping length to fit the wire with insulation in the plastic housing.
• The tightening torque is different for different terminals. Tighten the screws to the specified tightening torque.
• Use a torque driver, torque ratchet, or torque wrench for the screws. A slotted driver or a hex tool will be
necessary to wire the screw clamp terminal. Use applicable tools as specified by the recommended conditions in
the product manual.
• If you use power tools to tighten the terminal screws, use a low speed setting (300 to 400 r/min).
• Users can purchase wiring tools from Yaskawa. Contact Yaskawa or your nearest sales representative for more
information.
• Wire gauges on existing drive models to be replaced may not match wire gauge ranges on new drives. Contact
Yaskawa or your nearest sales representative for wire gauges that you can and cannot use.
• Do not tighten the terminal screws at an angle of 5 degrees or more.
Figure 2.91 Permitted Angle
• Put the bit all the way into the hex socket to tighten the hex socket cap screw.
• When tightening straight-edge screws, hold the tip of the screwdriver in the center of the screw head. Do not let
the tip of the screwdriver slip out from the groove of the screw.