Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Command Option Interface - Manual (Page 105)

4.2 Basic Functions Settings
4-9
4
Ope
rat
ion
Related Parameter
4.2.4 Electronic Gear
The electronic gear enables the workpiece travel distance per reference unit input from the host controller. The
minimum unit of the position data moving a load is called a reference unit.
Parameter Meaning When Enabled Classification
Pn00D
n.0
[Factory setting]
Does not detect overtravel warning.
After restart Setup
n.1 Detects overtravel warning.
When the Electronic Gear is Not Used:
Calculate the revolutions.
1 revolution is 6 mm. Therefore, 10 ÷ 6 = 10/6 revolutions.
When the Electronic Gear is Used:
Ball screw pitch: 6 mm
Workpiece
Encoder resolution (20 bit) 1048576
1
2
3
The section indicates the difference between using and not using an electronic gear when a
workpiece is moved 10 mm in the following configuration.
Calculate the required reference units.
1048576 reference units is 1 revolution. Therefore, 10/6
× 1048576 = 1747626.66 reference units.
Input 1747627 references as reference units.
Reference units must be calculated per reference. → complicated
The reference unit is 1 μm. Therefore, to move the workpiece 10 mm (10000 μm),
1 reference unit = 1 μm, so 10000 1 = 10000 reference units.
Input 10000 reference units.
÷
Calculation of reference units per reference is not required. → simplified
Rotation