本帖最后由 td456 于 2010-2-21 17:29 编辑 $ N' Z: X/ L' b% V8 x/ }/ h* X v - G1 X$ u: B* s# J7 VWhen open a motor connection box, ( b' Z) e) h9 P L3 f* n5 R) \" ~& f
Beside three phase wires for the power, & D" j" p( m c9 W8 YWe have another two wires marked as P1 and P26 ? y9 R3 k9 k$ h2 @& P0 R$ ]
What is that for(P1, P2)?6 ^% V5 l8 L; w. B
Most of the time, they are not used. . c7 a1 X6 Y6 A. `; p2 y/ ?$ K6 s, r c/ }
Thanks!
Good question!7 V: t4 ^+ c: y0 u5 z& z5 t6 b6 O9 F
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I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. ; o. L. ~0 F8 i8 l9 a 5 x Q3 O0 z' J8 P- b- fTry the following website for details: ' g9 C/ @ {$ ohttp://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf