Inovance MD320 Series, User Manual

Page: 47 / 202

MD320/MD320N User Manual Mechanical and Electric Installation
Part Name Mounting Location Function Description
AC input
reactor
side of the inverter
Ɣ
Improve the power factor of the input side;
Ɣ
Eliminate the higher harmonics of the input
side effectively and prevent other equipment
from damaging due to distortion of voltage
wave.
Ɣ
Eliminate the input current unbalance due to
unbalance between the power phases.
EMC Input
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I n p u t s i d e o f t h e
inverter
Ɣ
Reduce the external conduction and radiation
interference of the inverter.
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from the power end to the inverter and improve
the anti-interference capacity of the inverter.
DC reactor
MD series inverter
adopts DC reactor of
PRUH WKDQ * DV
standard.
Ɣ
Improve the power factor of the input side;
Ɣ
Improve the whole efficiency and thermal
stability of the inverter.
Ɣ
Eliminate the impact of higher harmonics of
the input side on the inverter and reduce the
external conduction and radiation interference.
AC output
reactor
Between the inverter
output side and the
motor. close to the
inverter
The inverter output side generally has higher
KDUPRQLFV:KHQWKHPRWRULVIDUIURPWKHLQYHUWHU
since there are many distributed capacitors in the
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the circuit and bring about the following two impacts:
Ɣ
Degrade the motor insulation performance and
damage the motor for the long run.
Ɣ
Generate large leakage current and cause
frequent inverter protection.
,QJHQHUDOWKHGLVWDQFHEHWZHHQWKHLQYHUWHUDQG
the motor exceeds 100 meters. Installation of output
AC reactor is recommended.
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