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Off-Topic "Setting Electronic Gear Ration on a servo system"

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mecanicu
1813 Views, 2 Replies

Off-Topic "Setting Electronic Gear Ration on a servo system"

I know this is way off-topic ::) even for "General Discussions", but i'm a little desperate at this point.
 
I'm heaving a problem with Electronic Gear Ration (numerator/denominator) on a LS Mecapion Servo, 1Kw AC Servo Motor, 3000 Nominal RPM, 19 bit's Multi-Turn Absoulute Encode's, Motor's are identical on all axis.
Machine Specs:
- Z axis, 800W Servo (with break), Ball Screw 10mm Pitch 16mm Diameter, Belt and Pulley 1:3 ratio.
- X axis, 1Kw Servo, Rack & Pinion Modul 1.5, 4,7124mm Pitch, Z20, Belt and Pulley 1:3 ratio.
- Y axis, 1Kw Servo, Rack & Pinion Modul 1.5, 4,7124mm Pitch, Z20, Belt and Pulley 1:3 ratio. Gentry 2 Servo motor's
I;m attaching a part of servo manual regarding electronic gear. I don't know how to calculate the numerator and denominator from this table.
If someone can explain to me how to apply this table, I'l be very happy!

Tx
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Message 2 of 3
mecanicu
in reply to: mecanicu

I manage to resolve the problem.
I found a very old servo manual, that explain it very simple.
If someone is interested :

denominator = {ball screw pitch / reference unit (user define resolution)} x {big pulley ratio (load)} =
            = (10 mm / 0.001 mm) x 3 = 30000
numerator  = {encoder resolution} x {small pulley ratio (motor)} =
            = 524288 x 1 = 524288
Ratio 524288/30000 = 17.47626666666667

Message 3 of 3
azimsk4u
in reply to: mecanicu

I m using delta servo motor asda b2 series. Worm gear mount on motor. Worm gear ratio is 1:15. It works on 360 digree mode. How to set gear ratio in drive p-44, p-45,p-46. Help me to figure out

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