本帖最后由 td456 于 2010-2-21 17:29 编辑 ( u- R* f. d! t* @$ J1 E * c* |7 U2 i; D3 o6 JWhen open a motor connection box, ; E' i, d: g: k2 ZBeside three phase wires for the power,. w7 q! w9 [( t" r0 N7 w% [
We have another two wires marked as P1 and P2 8 s& o" w9 W }1 \4 sWhat is that for(P1, P2)?: o: M$ _1 f/ X- U9 f) Z
Most of the time, they are not used. 7 W$ l% }' B9 ^ ' q, H5 ?7 _# D# P( `! @, GThanks!
Good question!8 i; I# ]8 B( y% ^5 T! S+ i& ]
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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. : ]5 K2 ^) j2 }7 B W / s( G/ c* f% Z$ t. m; a$ F, ITry the following website for details:/ ]! @; L9 X/ v0 q) l http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf