Installation Manual 49
ENGLISH
When none are available, follow the instructions below.
• Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring
may cause abnormal heat.)
• When connecting wiring which is the same thickness, do as shown in the figure below.
• For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure
being exerted on the terminal block.
• Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small head will
strip the head and make proper tighterning impossible.
• Over-tightening the terminal screws may break them.
◆ Precautions when laying power wiring
Electrical Wiring
Use round pressure terminals for connections to the power terminal block.
CAUTION
When the 400 volt power supply is applied to “N” phase by mistake, replace inverter PCB and transformer in
control box.
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