本帖最后由 td456 于 2010-2-21 17:29 编辑 * m6 G( b0 c- A- K
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When open a motor connection box, ! a% n% u, c- V7 c' v; E
Beside three phase wires for the power,& k! ]7 V2 j7 G' s
We have another two wires marked as P1 and P2: B$ i: q( |% t, X
What is that for(P1, P2)?3 o! h) u; l$ ?/ ^; d
Most of the time, they are not used. 8 M& {7 o0 h2 A1 b( v8 L6 a P" j. ^, v8 N% n. W9 G
Thanks!
Good question! ( y( E; `( C: N8 t( V- D- u , V7 Y' l' e5 e! xI think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. - f& e! H% |% {( |. h) p , m+ F0 P% d. ~3 p7 k; K7 ~Try the following website for details: 1 d9 e( e# S' ohttp://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf