YASKAWA JEPMC-MP2300-Y Series User Manual page 149

[ b ] Settings
Use steps 1 to 5 in the following procedure to make the settings.
1.
Elements relating to the
Electronic Gear
• Gear ratio
• Ball screw pitch
• Pulley diameter, etc.
2.
3.
Confirm the machine specifications.
Check the number of encoder pulses displayed in Counter Current Value, and set this
value to the counter fixed parameter No. 14 (Number of Pulses Per Encoder Rotation)
Set the reference unit (the smallest reference unit for the reference data to move a
load) according to the settings in the counter fixed parameter No. 08 (Reference Unit
Selection) and No. 09 (Number of Digits Below Decimal Point).
Consider the machine specifications and
positioning precision when setting the
reference unit.
When reference unit is 1 µm:
When 50,000 reference pulses are input, the workpiece will be moved by 50,000 × 1 µm =
50 mm.
Ball screw pitch
Gear ratio
Reference to move a table in
units of 0.001 mm.
Reference unit: 0.001 mm
3.4 I/O Modules (Optional)
3-41