本帖最后由 td456 于 2010-2-21 17:29 编辑 1 j8 O) f& j% ?" k& b
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When open a motor connection box, # K# m; ^' z9 ~. b6 q* j3 K# P: ?Beside three phase wires for the power, , n ]" s# u: N% f0 S: V, O: R9 _- xWe have another two wires marked as P1 and P2 9 Y% O( t% L3 I: M- @; v3 kWhat is that for(P1, P2)? 6 O8 k t8 @$ V, QMost of the time, they are not used. ) A' ^" {* ~# t2 ^+ n3 P4 K1 X* q& }4 ]0 n# R, J
Thanks!
Good question! 2 S. U, P* D! B- ?) j! ]" e ( P5 |* K3 z$ K' N" ]I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. - D5 h' z9 p/ Y( \0 x& M/ |/ ~1 u c. @5 r; d5 T6 ^1 m( @Try the following website for details:1 H) o& ?. o3 |8 A" n6 C http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf