本帖最后由 td456 于 2010-2-21 17:29 编辑 9 n& P, n4 h5 Y8 W8 n) i+ W
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When open a motor connection box, / }4 z- l$ o* P9 f, C$ n* F4 l2 q
Beside three phase wires for the power, ; l, m6 U4 Z2 `- ^% zWe have another two wires marked as P1 and P27 U, t' ?* S3 t. }8 Z" ? V
What is that for(P1, P2)? s6 F/ ~" p( M9 C- r5 x
Most of the time, they are not used.8 n1 u: I; V' |( G
Good question! ; Z8 R/ r" P( K9 U ! _$ N( p3 s5 \% g1 MI think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. / e7 L# x) E' `1 p2 k+ | 8 z' ?% P" ?) G* JTry the following website for details:( m0 I P9 L0 L& ~ http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf