Delta 1.07 VFD-D D Manuel d'utilisateur télécharger pdf (Page 17)

Chapter 2 Wiring|DD Series

2-4

;

Damaged insulation of wiring may cause personal injury or damage to

circuits/equipment if it comes in contact with high voltage.

;

The AC motor drive, motor and wiring may cause interference. To prevent the

equipment damage, please take care of the erroneous actions of the

surrounding sensors and the equipment.

;

The AC drive output terminals U/T1, V/T2, and W/T3 should connect to the

motor terminals U/T1, V/T2, and W/T3 respectively. To reverse the direction of

motor rotation, please switch over any of the two motor leads.

;

With long motor cables, high capacitive switching current peaks can cause

over-current, high leakage current or lower current readout accuracy. For

longer motor cables use an AC output reactor.

; The AC motor drive, electric welding machine and the greater horsepower

motor should be grounded separately.

;

Use ground leads that comply with local regulations and keep them as short as

possible.

;

Use ground leads that comply with local regulations and keep them as short as

possible.

;

Multiple AC drives can be installed in one location. All the units should be

grounded directly to a common ground terminal, as shown in the figure below.

Ensure there are no ground loops.

grouning

terminals

Excellent

grouning

terminals

Good

grouning

terminals

Not allowed

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Delta 1.07 VFD-D D Manuel d'utilisateur Page 17