Yaskawa MP940 Bedienungsanleitung Seite 253

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6.3
SVA Parameter Details
6-13
6
19 Distance Traveled
Per Machine
Rotation (PITCH)
The minimum reference unit is determined by this parameter and Reference
Unit Selection in the Motion Controller Function Selection Flags (bit 0 to bit
3).
Setting range: 1 to 2
31
-1
10000
Ball screw Ball screw pitch = 10 mm
Reference Unit Selection = mm
Number of digits below decimal
point = 3
Set the distance traveled per machine
rotation to 10000.
Rotating table
One table rotation = 360
Reference Unit Selection = deg
Number of digits below decimal
point = 3
Set the distance traveled per machine
rotation to 360000
Belt
One roller rotation = 360
Reference Unit Selection = mm
Number of digits below decimal
point = 3
Set the distance traveled per machine
rotation to .
21 Servomotor Gear
Ratio
(GEAR_MOTOR)
These parameters determine the gear ratio between the motor and the load.
The following two values are set for a configuration in which the load shaft
will turn n times in response to m turns of the motor shaft.
• Gear ratio at Servomotor: m
• Gear ratio at load: n
Setting Example
In the above example, the reduction ratio is n/m, or 3/7 4/9 = 4/21. The
following setting would thus be made.
Servomotor Gear Ratio: 21
Load Gear Ratio: 4
1
22 Machine Gear Ra-
tio (GEAR_ MA-
CHINE)
1
No. Name Description Default
10
Ball screw pitch = 10 mm
One rotation = 360°
°
D
π
D
°
π D 1000×
Motor shaft:
m turns
7 turns
4 turns
3 turns
9 turns
Load shaft: n turns
×
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