Delta VFD2A7ME43ANSAA User Manual

Chapter 4 WiringME300
4-3
4-1 System Wiring Diagram
Power input
terminal
Please refer to Chapter 9 Specification Table
in the user manual for details.
NFB or fuse
There may be a large inrush current during
power on. Refer to Section 7-2 NFB to select
a suitable NFB or Section 7-3 Fuse
Specification Chart.
Electromagnetic
contactor
Switching the power ON/OFF before the
magnetic contactor more than once per hour
can damage the drive.
AC reactor
(input terminal)
When the mains power capacity is > 500kVA or
when the drive is preceded by a capacitor bank,
the instantaneous peak voltage and current
may destroy the drive. In that case it is
recommended to install an AC input reactor
that also improves the power factor and
harmonics. The cable between reactor and
drive should be < 10m.
Please refer to Section 7-4.
Zero-phase
reactor
Can be used to reduce radiated emission,
especially in environments with audio devices,
and reduce input and output side interference.
The effective range is AM band to 10 MHz.
Please refer to Section 7-5.
EMC filter
Can be used to reduce electromagnetic
interference.
Please refer to Section 7-6.
Brake module
&
Brake resistor
(BR)
Can be used to shorten the deceleration time
of the motor.
Please refer to Section 7-1.
AC reactor
(output
terminal)
The wiring length of the motor affects switching
current peaks. It is recommended to install an
A
C output reactor when the motor wiring length
exceeds the value listed in Section 7-4.

Delta VFD2A7ME43ANSAA Specifications

General

Brand	Delta
Model	VFD2A7ME43ANSAA
Category	DC Drives
Language	English