3 Electrical Installation
YASKAWA Europe
TOEP C710606 50B - AC Drive L1000V - Quick Start Guide
EN 17
Main and Control Circuit Wiring
Wiring the Main Circuit Input
Note the following precautions when wiring the main circuit input.
• Use only fuses recommended in
.
• When using residual current monitoring or detection devices (RCM / RCD), make sure
the devices are designed for use with AC drives (e.g. type B according to IEC60755).
• If using an input switch, make sure that the switch does not operate more frequently than
once every 30 minutes.
• Use a DC reactor or AC reactor on the input side of the drive:
• To suppress harmonic current.
• To improve the power factor on the power supply side.
• When using an advancing capacitor switch.
• With a large capacity power supply transformer (over 600 kVA).
L3L2 L1
R/L1 S/L2 T/L3
U/T1 V/T2 W/T3
E
L1 PE
R/L1 S/L2 T/L3
U/T1 V/T2 W/T3
Wiring distance as
short as possible
Cable shield
grounding clamp
Drive
Braid shielded motor
cable
EMC
Filter
Grounding Surface
(remove any paint)
Metal plate
Panel or mounting wall
M
Grounding
Surface
(remove any
paint)
Ground shield at
motor side
L3
L2