Download  Print this page

Mitsubishi Electric FR-A500 Series Technical Manual Page 231

Transistored inverter.
Hide thumbs

Advertisement

Table of Contents
éô +DUPRQLF VXSSUHVVLRQ WHFKQLTXHV
õDô 5HDFWRUV IRU LQYHUWHU õ$&/ñ '&/ô
&RQQHFW DQ $& UHDFWRU õ$&/ô LQ WKH SRZHU
VXSSO\ VLGH RI WKH LQYHUWHU RU D '& UHDFWRU
õ'&/ô LQ LWV '& VLGH RU ERWK WR VXSSUHVV
KDUPRQLF FXUUHQWVï
*HQHUDOO\ñ LQVWDOODWLRQ RI WKH UHDFWRU LQ RQO\
RQH VLGH RI WKH LQYHUWHU RIWHQ SURGXFHV DQ
LQVXIILFLHQW VXSSUHVVLRQ HIIHFWï
õEô 3RZHU IDFWRU LPSURYLQJ FDSDFLWRU
:KHQ XVHG ZLWK D VHULHV UHDFWRUñ WKH SRZHU
IDFWRU LPSURYLQJ FDSDFLWRU KDV DQ HIIHFW RI
DEVRUELQJ KDUPRQLF FXUUHQWVï
7KLV FDSDFLWRU PD\ EH LQVWDOOHG LQ HLWKHU D
KLJK RU ORZ YROWDJH VLGHï
õFô 7UDQVIRUPHU PXOWLðSKDVH RSHUDWLRQ
:KHQ WZR WUDQVIRUPHUV DUH XVHGñ
FRQQHFWLQJ WKHP ZLWK D SKDVH DQJOH
GLIIHUHQFH RI êíq DV LQ
FRPELQDWLRQ ZLOO SURGXFH DQ HIIHFW
FRUUHVSRQGLQJ WR ìë SXOVHVï
,Q WKLV FDVHñ LW LV LGHDO WKDW WKH KDUPRQLF
JHQHUDWLQJ HTXLSPHQW RI WKH ORDG RI HDFK
WUDQVIRUPHU LV WKH VDPH LQ PRGHO DQG
FDSDFLW\ï ,I WKH FDSDFLW\ GLIIHUVñ KRZHYHUñ D
ìëðSXOVH HIIHFW IRU VPDOOHUðFDSDFLW\
HTXLSPHQW FDQ EH H[SHFWHGï 7KHUHIRUHñ WKH
FRQYHUVLRQ FRHIILFLHQW IRU çðSXOVH UHIHUHQFH
LV KDOYHGï
ð 'ñ 'ð '
ëëë
õGô $& ILOWHU
$ FDSDFLWRU DQG D UHDFWRU DUH XVHG WRJHWKHU
WR UHGXFH LPSHGDQFH IRU D VSHFLILF
IUHTXHQF\ñ SURGXFLQJ D JUHDW HIIHFW RI
DEVRUELQJ KDUPRQLF FXUUHQWVï
7KH $& ILOWHU H[KLELWV DQ HIIHFW RQ D VSHFLILF
IUHTXHQF\ï :KHQ WKHUH LV PRUH WKDQ RQH
KDUPRQLF FXUUHQW GHJUHHñ WKH $& ILOWHU PXVW
EH LQVWDOOHG IRU HDFK GHJUHHï
õHô $FWLYH ILOWHU
7KLV ILOWHU GHWHFWV WKH FXUUHQW RI D FLUFXLW
JHQHUDWLQJ D KDUPRQLF FXUUHQW DQG
JHQHUDWHV D KDUPRQLF FXUUHQW HTXLYDOHQW WR
WKH GLIIHUHQFH EHWZHHQ WKDW FXUUHQW DQG WKH
IXQGDPHQWDO ZDYH FXUUHQW WR VXSSUHVV WKH
KDUPRQLF FXUUHQW DW WKH GHWHFWLRQ SRLQWï
$V WKLV ILOWHU FRPSHQVDWHV IRU D ZKROH
ZDYHIRUPñ D VLQJOH ILOWHU FDQ SURYLGH HIIHFWV
RQ PRUH WKDQ RQH GHJUHH RI KDUPRQLFï
7KH ILOWHU KDV D SURWHFWLYH IXQFWLRQï
7KHUHIRUHñ LI WKHUH LV DQ LQFRPLQJ H[FHVVLYH
KDUPRQLF FXUUHQWñ WKH ILOWHU PD\ EH VKRUW RI
WKH KDUPRQLF FXUUHQW DEVRUELQJ HIIHFW
õLï Hï QRW SHUIRUP DV JRRGô EXW ZLOO QRW
RYHUKHDW RU EXUQ RXWï
7R XWLOL]H WKH SHUIRUPDQFH RI WKH DFWLYH ILOWHU
HIIHFWLYHO\ñ FLUFXLW FRQGLWLRQV DQG RWKHUV
PXVW EH H[DPLQHG EHIRUH LQVWDOOLQJ WKH
DFWLYH ILOWHUï
6(/(&7,21

Advertisement

Table of Contents

This manual is also suitable for:

Fr-e500 series

Comments to this Manuals

Symbols: 0
Latest comments: