YASKAWA MP3000 Series, Руководство по установке, Страница: 119 / 326

3.6 Device-specific Settings
3.6.4 Setting Machine-specific Motion Parameters
3-41
3
Machine Controller Setup

Reference Unit
The motion control reference unit can be set to the pulse, mm, deg, inch, or
μ
m. The reference
unit is specified in motion fixed parameter No. 4 (Reference Unit Selection). The minimum refer-
ence unit is determined by the setting of motion fixed parameter No. 5 (Number of Digits Below
Decimal Point).

Electronic Gear
The amount of change in the mechanical system (i.e., the travel distance) for the input of 1 ref-
erence unit is called the output unit. The electronic gear converts positions or speeds from ref-
erence units to output units for the mechanical system without going through an actual
mechanism, such as a gear.
If the mechanical configuration is such that rotating the Servomotor axis m times results in
rotating the load axis n times, this electronic gear can be used to make the output units equiv-
alent to the reference units.
The electronic gear function is enabled when the following settings are made:
•
Motion fixed parameter No. 6 (Travel Distance per Machine Rotation)
•
Motion fixed parameter No. 8 (Servomotor Gear Ratio)
•
Motion fixed parameter No. 9 (Machine Gear Ratio)
Motion Fixed
Parameter No. 5
(Number of Digits
Below Decimal
Point)
Motion Fixed Parameter No. 4 (Reference Unit Selection)
0: pulse 1: mm 2: deg 3: inch 4:
μ
m
0: 0 digits 1 pulse 1 mm 1 deg 1 inch 1
μ
m
1: 1 digit 1 pulse 0.1 mm 0.1 deg 0.1 inch 0.1
μ
m
2: 2 digits 1 pulse 0.01 mm 0.01 deg 0.01 inch 0.01
μ
m
3: 3 digits 1 pulse 0.001 mm 0.001 deg 0.001 inch 0.001
μ
m
4: 4 digits 1 pulse 0.0001 mm 0.0001 deg 0.0001 inch 0.0001
μ
m
5: 5 digits 1 pulse
0.00001
mm
0.00001 deg 0.00001 inch 0.00001
μ
m
•
The electronic gear is disabled when the pulse is specified as the reference unit.
•
Set the SERVOPACK electronic gear ratio to 1:1.
Minimum
reference
units
Note