本帖最后由 td456 于 2010-2-21 17:29 编辑 $ _0 m/ n Y5 J, z2 d! t9 F 0 b1 t, M2 ?2 S2 V- MWhen open a motor connection box, # W2 ]0 I; B* BBeside three phase wires for the power, " r) f Q7 D U( R7 X% }6 [We have another two wires marked as P1 and P2 - n6 u( J M( c/ K3 H, [What is that for(P1, P2)? 8 N+ G/ j0 c) xMost of the time, they are not used. / L i( g1 d% [9 V: W: k" [ , } B7 L. {; E+ K' N. {! s5 RThanks!
Good question! 8 R) h$ [+ @9 s) Q- _9 X8 K 2 _- }; \" d! ^+ P2 ~2 |+ c# P, @I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out.' j# }5 V3 I/ V1 G! R
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Try the following website for details:6 h, a- l+ K/ g" B" b http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf