0 R% @% H* q0 A* kWhen open a motor connection box, 3 V. e% x9 K- G* n) B5 E
Beside three phase wires for the power, 8 u# w+ n% J+ R1 M/ nWe have another two wires marked as P1 and P2 3 r5 i) L; X7 Q2 E1 i7 @What is that for(P1, P2)? 5 U5 j/ ^* e8 ~1 y7 e* s3 W+ s6 BMost of the time, they are not used. ! U! w6 l9 j1 y. |( r0 h! L9 G6 m' M0 \9 r9 H K7 A4 Y
Thanks!
Good question! 8 D) u- n) t+ d7 q- Z! U; U& y8 u9 r- e$ k" {
I think the two leads P1 and P2 are for the thermal switch (mostly normal close), use multimeter to check out. ) s$ o9 B1 D1 E6 `- j8 h / E% Y: z ^, X' z8 lTry the following website for details: # j8 b, Y* M4 k: E' A6 T$ Ghttp://www.fine-ny.com/pdfs/Fuji-Electrical-Apps.pdf