本帖最后由 td456 于 2010-2-21 17:29 编辑 % ^6 k$ `" |' W6 }5 |( ~( R1 \) s
When open a motor connection box, % L: \/ Y8 j. u9 z* C
Beside three phase wires for the power,; r0 v7 D- x1 \- M7 U3 M
We have another two wires marked as P1 and P2$ k/ O0 q0 H ^* q3 B: W3 q9 e
What is that for(P1, P2)?5 R3 j& H* f$ ?; u) R# J
Most of the time, they are not used. ) I0 d! z1 V# P2 m6 F2 s7 |- @5 S( p- ~
Thanks!
Good question!: n% m+ n0 Y" h" m- E7 @
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I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out.) E+ \; ?3 b8 J; f u
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Try the following website for details:& y3 G7 w9 F* t8 g http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf