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Service Manual
(6)Voltage sag protection
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(7)Communication fault
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PDFKLQHZLOOVWRSIRUFRPPXQLFDWLRQIDXOW,IWKHFRPPXQLFDWLRQLVUHVXPHGWKHPDFKLQHZLOOEHDOORZHGWRRSHUDWH
(8)Module protection
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SURWHFWLRQLPPHGLDWHO\,IWKHPRGXOHSURWHFWLRQLVUHVXPHGWKHPDFKLQHZLOOEHDOORZHGWRRSHUDWH,IWKHPRGXOHSURWHFWLRQFRQWLQXRXVO\
RFFXUVIRUWKUHHWLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH,IWKHUXQQLQJWLPHRI
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(9)Module overheating protection
1. Starting estimation:
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0RGXOH
>7
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@WKH WHPSHUDWXUH RI K\VWHUHVLV LV ) WKH PDFKLQH
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PDFKLQHVKRXOGEHVWRSSHGRUWUDQVIHUUHGWRVXSSO\DLUWKHWURXEOHVKRXOGEHFOHDUHGLPPHGLDWHO\DQGWKHSURWHFWLRQWLPHVDUHQRWFRXQWHG
2. Frequency limited
,I>7
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@7
0RGXOH
>7
IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH
@\RXVKRXOGOLPLWWKHIUHTXHQF\UDLVLQJRIFRPSUHVVRU
3. Reducing frequency at normal speed and power turn-off:
,I >7
IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW QRUPDO VSHHG RI PRGXOH
@ 7
0RGXOH
>7
IUHTXHQF\ UHGXFLQJ WHPSHUDWXUH DW KLJK VSHHG RI PRGXOH
@ \RX VKRXOG DGMXVW WKH FRPSUHVVRU IUHTXHQF\ E\
U]VWLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI>7
IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH
@70RGXOH\RXVKRXOG
VWRSWKHPDFKLQHIRUPRGXOHRYHUKHDWLQJSURWHFWLRQ
4. Reducing frequency at high speed and power turn-off:
,I>7
IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWKLJKVSHHGRIPRGXOH
@7
0RGXOH
>7
3RZHUWXUQRIIWHPSHUDWXUHRIPRGXOH
@\RXVKRXOGDGMXVWWKHFRPSUHVVRUIUHTXHQF\E\U]V
WLOOWKHORZHUOLPLW$IWHULWZDVUXQQLQJVDWWKHORZHUOLPLWLI>7
IUHTXHQF\UHGXFLQJWHPSHUDWXUHDWQRUPDOVSHHGRIPRGXOH
@7
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PRGXOHRYHUKHDWLQJSURWHFWLRQ
5. Power turn-off:
,IWKH>7
3RZHUWXUQRIIWHPSHUDWXUHRIPRGXOH
@7
0RGXOH
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>7
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]
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,ISURWHFWLRQFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH
'XULQJWKHSURFHVVRIUXQQLQJLIWKHUXQQLQJWLPHRIFRPSUHVVRUH[FHHGVWKH>W
3URWHFWLRQWLPHVFOHDULQJRIPRGXOH
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transferring also will not clear it).
(10)Compressor overloads protection
,I \RX PHDVXUH WKH FRPSUHVVRU RYHUORDG VZLWFK DFWLRQ LQ V WKH FRPSUHVVRU VKRXOG EH VWRSSHG IRU RYHUORDGLQJ7KH PDFKLQH VKRXOG EH
DOORZHG WRRSHUDWH DIWHURYHUORDG SURWHFWLRQ ZDVPHDVXUHG WRUHVXPH,IWKHRYHUORDGLQJ SURWHFWLRQ FRQWLQXRXVO\ RFFXUVIRUWKUHHWLPHVLW
VKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH7KHSURWHFWLRQWLPHVRIFRPSUHVVRULVDOORZHGWR
FOHDUDIWHUWKHFRPSUHVVRUUXQ>W
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(11)Phase current overcurrent protection of compressor
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steps:
1. Frequency limited
,I>,
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@>,
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2. Reducing Frequency
,I>,
)UHTXHQF\5HGXFLQJ3KDVH&XUUHQW
@,3KDVH&XUUHQW>,
3RZHU7XUQ2II3KDVH&XUUHQW
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OLPLWRURXWRIWKHFRQGLWLRQRIUHGXFLQJIUHTXHQF\
3. Power turn-off
,I>,
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@>,
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3KDVH&XUUHQW
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,IWKHRYHUFXUUHQWSURWHFWLRQRIFRPSUHVVRUSKDVHFXUUHQWFRQWLQXRXVO\RFFXUVIRUVL[WLPHVLWVKRXOGQRWEHUHVXPHGDXWRPDWLFDOO\DQG
\RXVKRXOGSUHVVWKH212))EXWWRQWRUHVXPH'XULQJWKHSURFHVVRIUXQQLQJLIWKHUXQQLQJWLPHRIFRPSUHVVRUH[FHHGVWKH>W
Clearing Time of
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Содержание Vireo B 12 MBH
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