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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