5 C$ n- H# u- }# m: D+ z8 k5 JWhen open a motor connection box, % |" e4 }8 X6 qBeside three phase wires for the power, ; s4 s1 Y% p0 Q/ w; ?We have another two wires marked as P1 and P2& S8 L# w9 v- f- G4 I4 x
What is that for(P1, P2)? 2 K% W: M7 o8 r" Q" y+ V* vMost of the time, they are not used.4 p- S/ u6 A9 h$ y) P; T6 }5 C
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Thanks!
Good question! * }, }/ l E r) ?, ~; C" B2 F# [$ D: c$ E
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out.# s9 c9 H' Y6 x- {* d% M
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Try the following website for details:2 Z( b: B/ }5 {! n* H http://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf