本帖最后由 td456 于 2010-2-21 17:29 编辑 1 Q. s+ e g. `3 S( D: i/ A7 C
( Y. c# k6 r5 s! t' u; I: VWhen open a motor connection box, / ]- }$ ^! l5 j8 v( _2 g8 \Beside three phase wires for the power,! E% \/ n+ `3 Q) t% k' }1 {$ g+ G1 }8 {# }
We have another two wires marked as P1 and P2$ v7 c# b$ U4 o7 b9 W
What is that for(P1, P2)? " m0 m8 F4 e: `3 VMost of the time, they are not used./ A' |, L8 A- l
, F0 ?# D3 g* |
Thanks!
Good question!8 i% z" @8 {$ \7 E
: R# f" L, J' Q1 [! l! w
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. ! O2 t/ Y2 I) l3 j; I$ D ( d) h3 A- P: n8 ?Try the following website for details: 5 G- Q& N6 S. s, |. v- \! S4 T$ \http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf