PA12 / PA13:
= ( c o m m a n d va l u e m m ) *( t h e n u mb e r o f wi r e s o f t h e e n c o d e r ) *(4 quadruple
frequency)/ (pitch)*(the number of pulses)
=10*2500*4/6*10000
=5/3
viz. PA12=5, PA13=3.
b. There is a reducer between the servo motor and the lead screw (The lead screw rotates for 2 revolutions
when the motor for 5 revolutions).
●If the numerical control system programming is 10 mm, then sent out 10000 pulse
●The photoelectric encoder has 2500 wires.
●The pitch of the lead screw is 6mm.
PA12 / PA13:
= ( c o m m a n d va l u e m m ) *( t h e n u mb e r o f wi r e s o f t h e e n c o d e r ) *(4 quadruple
frequency)*(the revolution number of the motor)/ (pitch)*(the number of pulses)* (the revolution
number of the lead screw)
=10*2500*4*5/6*10000*2
=25/6
Viz. PA12=25, PA13=6 .
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