本帖最后由 td456 于 2010-2-21 17:29 编辑 ; c' y* [% u* ` d G 0 \* \- J: h LWhen open a motor connection box, / o% g0 t* a3 }+ R, w U$ T/ O! g' TBeside three phase wires for the power,7 f" H( e; ^! O4 E+ [. @
We have another two wires marked as P1 and P2 0 ^3 m. c# {- P# `; S3 I. D" GWhat is that for(P1, P2)?# Q9 A/ w, n" P+ A( j
Most of the time, they are not used.. P' E# a, ~1 E5 j7 k
Good question!7 d [2 W9 F; b; `3 n6 p
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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. " w) y9 p2 X# C' q+ _- F) O : J* n* P# K3 J0 yTry the following website for details:3 r- O! N$ h$ Q http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf