本帖最后由 td456 于 2010-2-21 17:29 编辑 * w' H0 u# ]. e
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When open a motor connection box, 8 d I4 i* q$ D pBeside three phase wires for the power, 5 }6 a% i- ?3 A2 e* qWe have another two wires marked as P1 and P2 ' A% C0 T( h: `3 E& @: ^What is that for(P1, P2)? ; ?0 U+ I& J. R& }! a3 HMost of the time, they are not used. 7 e# @5 ]$ s! k% {6 Y, B$ a 3 w( i; ^; W, Y" XThanks!
Good question! # Z! ^$ Q) v- G+ p9 Y! {+ ?5 v# V# |' j% t5 p+ w z' A
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out.1 L1 H" Y2 y- T# c n6 m1 d
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Try the following website for details:) L' ^% { d4 a; m% ]9 s* a: z http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf