Yaskawa MP920 Motion Module - Manual (Page 56)

2 Motion Control
2.3.1 Prerequisites for Position Control
2-30
Table 2.12 shows the meanings of the above parameters and gives some setting examples.
Table 2.12 Electronic Gear Parameters and Constant Table
Servo Fixed
Parameter No.
Name Description Initial
Value
No.19 Travel Distance
Per Machine
Rotation • This parameter shows the load travel distance for each rotation of the load
axis. Sets the load travel distance value divided by the minimum reference
unit.
• Some examples of the load travel distance are shown below.
10000
Travel Distance Per
Machine Rotation
Load Configuration Examples
P [mm] Ball
screw
360 [ ° ] Round
table
πD [mm] Belt
• No.19 setting range: 1 to 2 31 -1[1 = 1 reference unit]
Setting Examples
• Load travel distance per load axis rotation = 12 mm
• Minimum reference unit = 0.001 mm [reference unit: mm, digit number
after decimal point: 3]
No.19 =
Load travel distance per load axis rotation
Minimum reference unit
P = Ball screw pitch
P
One rotation = 360 °
π D
D
No.19 = = 12000
12 mm
0.001 mm