Chapter3 Mechanical and Electrical Installation
SVF-G7 Series Frequency Inverter Operation Manual
37
P
、
(+)
Add
reactor
wiring
terminals outside
Add reactor connect point outside
U
、
V
、
W
The frequency inverter
output terminals
Connect 3-phase motor
Earth terminal
Earth terminal
2) Wiring Notes:
A. Input Power R、S、T：
The frequency inverter's input side wiring is not requirements in phase
order.
B. DC bus terminals (+), (-)
☞
Notice：Wiring can only be done after the drive’s AC power is cut
off, then waiting for at least 5mins and confirming the voltage between
DC bus terminals plus and minus is below DC 36V.
When choosing external braking kits more than 15KW for frequency
inverter, do not mistake the terminals (+),(-), otherwise, can lead to
the drive damage and fire.
When the cables from the frequency inverter to motor are longer than
10m, multi-stranded cables or close two-lane parallel wiring should be
used.
Braking resistor can not be directly connected to the DC bus, otherwise,
cause the risk of the drive damage and fire.
C. Brake resistor terminals (+), PB:
Less than 11KW, after confirming the drives have built-in brake kits,
the braking resistor terminals are effective.
Selection of braking resistor should refer to the
recommended value,
