本帖最后由 td456 于 2010-2-21 17:29 编辑 ; E. M6 `+ Q& H( K- z1 Y$ t# O 5 V$ v! \' I. K9 _When open a motor connection box, / A1 i4 I( s( C* r9 C% D- ^
Beside three phase wires for the power,: P- z# w, w$ u* r q+ `$ m, p0 J
We have another two wires marked as P1 and P2$ o7 S4 z$ d% x0 H# O
What is that for(P1, P2)? " N) S/ H" x( `2 S/ X5 n9 fMost of the time, they are not used. . D" U5 S5 S: y) p* ~+ d8 t " F4 c: e( x5 a" ]$ q' u% n6 lThanks!
Good question!9 O( g& L' F2 y7 i; m% S. O" O I# A
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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. , ?3 S6 S) ^% U% \+ A8 ~# F7 C) u& L7 A! Z) W
Try the following website for details: 2 y, u' |* ^' o5 M( i+ ohttp://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf