本帖最后由 td456 于 2010-2-21 17:29 编辑 . K; [* i8 r+ A8 {' j
6 U$ h' W" a& Y1 J& ?$ o
When open a motor connection box, . x/ k+ X) X @3 c* E L% G' C, o, j
Beside three phase wires for the power, , P, d% b! \1 PWe have another two wires marked as P1 and P2: ?0 O& l, w3 f O; f7 y
What is that for(P1, P2)? / j' w$ C e4 j& z8 Y5 L3 ]* AMost of the time, they are not used. % o0 S/ o9 G2 \* B @- h3 ?, L8 c! a) v4 |, P: ~
Thanks!
! W2 Z+ K8 d/ `6 q7 ^I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. ) O/ w- z: f1 t+ R, d& T) l' d% o: o
Try the following website for details:! E, i3 j" D/ w$ K: P) W4 w$ W http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf