YASKAWA GA800 Series, Техническое обслуживание и устранение неисправностей

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Electrical
Installation
5
5.4 Main Circuit Terminal Block Wiring Procedure
YASKAWA TOEPYAIGA8001B GA800 Drive Maintenance & Troubleshooting 377
5.4 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 5.5 for
procedures by drive model.
Table 5.5 Types of Wiring Procedure for the Main Circuit Terminal Block
Model Procedure Ref.
2004 - 2211
4002 - 4168, T103 - T168
Procedure A 377
2257 - 2415
4208 - 4720, T208 - T720
Procedure B 381
◆
Wire the Main Circuit Terminal Block with Procedure A
■
Notes on Wiring the Main Circuit Terminal Block
Read these notes before you wire the main circuit terminal block.
• Use UL-Listed, vinyl-coated insulated copper wires for operation with a continuous maximum permitted
temperature of 75 °C at 600 V.
•
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. Incorrect connections can
cause death or serious injury from fire.
•
Do not solder stranded wire. Soldered wire connections can become loose over time and cause unsatisfactory drive
performance.
•
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. Incorrect connections can cause death or serious injury from fire.
•
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.
•
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). Failure to obey can
cause damage to the terminal screws.
•
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 more information about the connection procedures.
•
Do not tighten the terminal screws at an angle of 5 degrees or more. Failure to obey can cause damage to the
terminal screws.
•
If you damage a terminal screw, contact Yaskawa or your nearest sales representative.