本帖最后由 td456 于 2010-2-21 17:29 编辑 & r, l- U5 h- Z3 r, X P. Q1 K& x) }
When open a motor connection box, . R5 S: X, m+ T: J
Beside three phase wires for the power, 0 K4 W5 w/ d2 w7 x/ tWe have another two wires marked as P1 and P2 2 \) U0 u; [( n7 U( i. O2 Q qWhat is that for(P1, P2)?% f& |$ F$ h9 o; r. k
Most of the time, they are not used. # ^+ \2 b6 p c F* | 9 u. K J% p0 S! {8 {Thanks!
Good question! . V1 H6 r9 l: ~* K6 `" G1 V% K4 `6 z& `% e' N5 ?
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. # Y' @! c( V" V 0 |+ `( F( P+ T7 I4 hTry the following website for details: # H5 B4 |/ \* a# n/ [" g9 A( Lhttp://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf