Delta VFD110VL43C-J User Manual

Chapter 2 Wiring | VFD-VJ
2-12
2-2 Description of Terminals on Main Circuit
Output AC
Line Reactor
Power Supply
Magnetic
contactor
Input AC
Line Reactor
EMI Filter
R/L1 S/L2
T/L3
U/T1 V/T2
W/T3
B1
B2
Zero-phase
Reactor
Zero-phase
Reactor
Fuse /
No-Fuse
Breaker
Br ake r esi sto r
Motor
Items Explanations
Power supply
Please follow the specific power supply
requirements shown in Chapter 01.
Fuse/NFB
There may be an inrush current during
power up. Please check the chart of
Appendix A-2 and select the correct
fuse with rated current. Use of a NFB is
optional.
Magnetic
contactor
Please do not use a Magnetic
contactor as the I/O switch of the AC
motor drive, as it will reduce the
operating life cycle of the AC drive.
If you still need to run / stop AC drives
by switching ON/ OFF the magnetic
contactor, you can do so only ONCE
per hour.
Input AC Line
Reactor
Used to improve the input power factor,
to reduce harmonics and provide
protection from AC line disturbances.
(surges, switching spikes, short
interruptions, etc.). AC line reactor
should be installed when the power
supply capacity is 500kVA or more and
exceeds 6 times the inverter capacity,
or the mains wiring distance

10m.
We suggest to install the input reactor
close to the hybrid motor drive. See
Appendix A for more details.
Zero-phase
Reactor
(Ferrite Core
Common
Choke)
Zero phase reactors are used to
reduce radio noise especially when
audio equipment is installed near the
inverter. Effective for noise reduction
on both the input and output sides.
Attenuation quality is good for a wide
range from AM band to 10MHz.
Appendix A specifies the zero phase
reactor. (RF220X00A)
EMI filter
To reduce electromagnetic
interference, please refer to Appendix
A for more details.
Brake Resistor
Used to reduce the deceleration time of
the motor. Please refer to the chart in
Appendix A for specific Brake
Resistors.
Output AC Line
Reactor
Motor surge voltage amplitude
depends on motor cable length. For
applications with long motor cable
(>20m), it is necessary to install a
reactor at the inverter output side.

Delta VFD110VL43C-J Specifications

General

Brand	Delta
Model	VFD110VL43C-J
Category	Servo Drives
Language	English