本帖最后由 td456 于 2010-2-21 17:29 编辑 ! G! y ]( X% [4 M: b0 ]' s; D0 h; |4 U
When open a motor connection box, r8 ~, Z3 r, r; e# J% A' ~
Beside three phase wires for the power, 1 o* \6 ?3 k4 J- GWe have another two wires marked as P1 and P2 5 z, n1 u6 K3 {7 @4 j9 RWhat is that for(P1, P2)? # ?- c/ l7 F$ B0 @# hMost of the time, they are not used. . I% t" f5 ]( |! u% Y3 g& X5 J6 V " z' C) E$ n1 \5 B. q; u5 [$ EThanks!
Good question! " i5 F% p6 K5 f. ^0 K! ?0 m4 ` & B4 e& `4 S' vI think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. 0 I' N& M" _! r/ g, @ | 8 R h% j+ ]7 H; d. _Try the following website for details: 8 C7 c0 p: Z+ {http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf