Advanced Control ADV 0.40 C220-M Краткое руководство онлайн [6/63] 459364

Basic Reference Guide

C220/C420 General Flux Vector Control Inverter

2.3 Wiring Precautions

a) Input power supply terminals L, N, R, S or T:

There is no sequence requirement for the wiring at the Input side of the inverter.

b) DC bus (+) and (-) terminals:

The DC bus (+) and (-) terminals still have residual voltage at the time of power-off.

Do not touch the equipment until the charge LED is OFF and the voltage measured

with multi meter is less than 36V.

The wire length of the brake unit shall not be longer than 10 meters. Twisted wires

or pair wires shall be used and connected in parallel.

Do not connect the braking resistor directly to the DC bus, otherwise, the inverter

may be damaged, and fire may be caused.

c) Connecting terminals (+) and PB of brake resistor:

The recommended wiring distance for the brake resistor shall be less than

5m.Otherwise, the inverter may be damaged.

d) Inverter output sides U, V and W:

The inverter output side cannot connect to the capacitor or surge absorber, otherwise,

the frequent inverter protection may be caused, or the inverter may be damaged.

If the wire between the motor and the inverter is too long, electrical resonance may

be caused due to the influence of the distributed capacitance, thus damaging the

motor insulation or produce large leakage current to trigger inverter over current

protection. When the length of the motor cable is longer than 100 meters, AC output

reactor shall be installed.

e) Grounding terminal

The terminal must be grounded reliably, and the resistance of the ground wire must

be less than 0.1Ω. Otherwise, fault may be caused, or the inverter may be damaged.

Do not share the grounding terminal

and terminal N of zero line of the power

supply.