Inovance MD280NT3.7GB - Chapter 7 EMC; De Nition; Introduction to EMC Standard; EMC Guideline

EMC
MD280 User Manual
- 154 -
Chapter 7 EMC
7.1 De¿nition
(OHFWURPDJQHWLFFRPSDWLELOLW\(0&LVWKH DELOLW\RIWKHHOHFWULFHTXLSPHQWWRUXQ LQWKH
electromagnetic interference environment and implement its functions stably without
interfering with the electromagnetic environment.
7.2 Introduction to EMC Standard
In accordance with the requirements of China's national standard GB/T12668.3, the
AC drive must comply with the electromagnetic interference and anti-electromagnetic
interference requirements.
7KH&6DSSOLHVWKHODWHVW LQWHUQDWLRQDOVWDQGDUG,(&(1$GMXVWDEOH
VSHHGHOHFWULFDOSRZHUGULYHV\VWHPVSDUW(0&UHTXLUHPHQWVDQGVSHFL¿FWHVWPHWKRGV
which is equivalent to China's national standard GB/T12668.3.
IEC/EN61800-3 assesses the AC drive in terms of electromagnetic interference and anti-
electronic interference. Electromagnetic interference mainly tests the radiation interference,
FRQGXFWLRQLQWHUIHUHQFHDQGKDUPRQLFVLQWHUIHUHQFH RQWKH$& GULYHUHTXLUHGLIWKH$&
GULYHLVDSSOLHGIRUFLYLOXVH$QWLHOHFWURPDJQHWLFLQWHUIHUHQFHPDLQO\WHVWVWKHFRQGXFWLRQ
interference rejection, radiation interference rejection, surge interference rejection, fast and
PXWDEOHSXOVHJURXSLQWHUIHUHQFHUHMHFWLRQ HOHFWURQLFVWDWLF GLVFKDUJH(6' LQWHUIHUHQFH
UHMHFWLRQDQGSRZHUORZIUHTXHQF\HQGLQWHUIHUHQFHUHMHFWLRQ7KHVSHFL¿FWHVWLWHPVLQYROYH
1. Interference rejection tests of input voltage sag, interrupt and change
2. Commutation notch interference rejection test
3. Harmonic input interference rejection test
4. Input frequency change test
5. Input voltage unbalance test
,QSXWYROWDJHÀXFWXDWLRQWHVW
Being tested strictly in accordance with the above requirements of IEC/EN61800-3 and
used according to section 7.3, the CS500 has good EMC capability in general industry
environment.
7.3 EMC Guideline
7.3.1 Harmonic Effect
Higher harmonics of power supply may damage the AC drive. Thus, at some places where
mains quality is rather poor, it is recommended to install an AC input reactor.
7.3.2 Electromagnetic Interference and Installation Precautions
Ƶ
Electromagnetic Interference
There are two types of electromagnetic interference, interference of electromagnetic noise
efesotomasyon.com