本帖最后由 td456 于 2010-2-21 17:29 编辑 7 S: [! S. Y2 |; R9 ?' [
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When open a motor connection box, . D) f. q1 j8 D$ q* UBeside three phase wires for the power,, x; }2 A$ r8 B* g
We have another two wires marked as P1 and P2 + y" o( k7 [( P4 ^What is that for(P1, P2)? . `5 C" d5 Q7 A9 q, r. b M6 r8 ?Most of the time, they are not used. ! R6 r- t# j$ Y7 g9 H 2 Z$ L: Y* g cThanks!
Good question! 0 r; J& i: N; ?$ @, C - Q+ _. b3 V7 a5 d5 `. T) HI think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. 3 F! W# U: E) c: @6 p M& n8 f/ @! ^( b7 J3 x) @& {% d
Try the following website for details:0 D8 g* C# j- ? http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf