本帖最后由 td456 于 2010-2-21 17:29 编辑 : b0 k) o: g: j* S3 t
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When open a motor connection box, / O! z; z5 Y; ?
Beside three phase wires for the power, 0 t+ S% N8 c( \ `9 w3 p3 ?, }2 `We have another two wires marked as P1 and P26 _ B, C8 M% f/ Y
What is that for(P1, P2)?) T; S$ q2 j9 P n g( W w7 S5 x
Most of the time, they are not used. . y4 i$ D- [4 Z! Z {: x) k0 V : ^4 I8 S! A+ Z, ^Thanks!
Good question!% b/ s. E; |* v5 e9 M G: l
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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. 6 |5 a% c- F' Z2 e # ^. q6 K+ e" C% C) A" u) {8 g A- Y- WTry the following website for details:- l( x5 K% y2 e http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf