本帖最后由 td456 于 2010-2-21 17:29 编辑 7 ]$ m, W+ C5 \7 p7 v
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When open a motor connection box, . @+ a" y; \4 M" x' Q( Z$ bBeside three phase wires for the power, ! c) D2 J T" D3 |We have another two wires marked as P1 and P2 : w x$ p! b* W5 s/ VWhat is that for(P1, P2)? # a: r+ i9 I: I1 c: l2 F' Z2 EMost of the time, they are not used.9 |9 x: b$ T5 _' u; ~
Good question! / y3 ~! e, S s, B6 p) o. c0 G+ S% o
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. - e# W0 b+ w! j* k 9 l/ }* A, j5 i+ R5 d4 Q1 g+ k2 TTry the following website for details: g; F" v1 b! ~* v) h3 D# N3 y5 {$ x http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf