本帖最后由 td456 于 2010-2-21 17:29 编辑 ) `! n# I9 `9 h2 J+ h4 ~5 X9 P3 i, ?1 L2 ~8 M, m# W
When open a motor connection box, $ j4 `2 F" u2 f! V) H9 d9 x6 mBeside three phase wires for the power,5 a0 b, P/ P4 x. ?7 }) S
We have another two wires marked as P1 and P2 * g' B' m0 y& X( U& XWhat is that for(P1, P2)? : K' |4 v: U! V9 D) T4 b9 N$ YMost of the time, they are not used. 9 O$ N8 x8 F. p8 p ?" M" m) l S7 W1 b1 [& SThanks!
Good question!9 f% ^+ n6 J6 T4 Z6 @7 z
) T! ^1 a1 f/ ]& q$ E: K
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. 8 |9 o! H, g+ ~5 F4 u2 d/ J5 q7 o5 c" }& ^# m$ Y' u
Try the following website for details:1 v! @/ W8 o0 D% O9 F1 Q+ k) K http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf