TECO JSDG2S-75B-E - Page 184

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Example of Electronic Gear Ratio Setting Steps
Transmission System
Setting Steps
Ball Screw
Method 1: Directly set the Pulse Command
Number of Single Rotation
1. Understand the Overall System
Specifications:
Load Axis (Ball Screw) One Revolution
Movement=5mm/rev
2. Define One Pulse Command Moving
Distance:
One pulse command moving distance=1um
3. Set Number of Pulses in a Single Rotation
SingleRotationPulseCommand 
5mm/rev
1um/pulse
 5000pulse/rev
Method 2: Use the Electronic Gear Ratio
Numerator and Electronic Gear Ratio
Denominator
1. Understand the Overall System
Specifications:
Load Axis (Ball Screw) One Revolution
Movement=5mm
Motor encoder resolution=131072pulse
2. Define One Pulse Command Moving
Distance:
One pulse command moving distance=1um
3. Calculate Electronic Gear Ratio:
ElectronicGearRatio 
131072pulse/rev
5mm/rev1um/pulse

131072
5000
4. Electronic Gear Ratio Parameters Setting:
Electronic Gear Ratio Numerator 131072
Electronic Gear Ratio Denominator 5000