Linear Scale Pitch And Rated Speed - YASKAWA SVC User Manual

If an exponential acceleration/deceleration filter is used with the SVR Function Module, you can
use the setting for the OW
Acceleration Filter).
If the speed goes higher than the value of OW
Important
filter is enabled.
OW
5.1.8

Linear Scale Pitch and Rated Speed

When a linear motor is used, set the following fixed parameters according to the specifications
of the linear motor.
• No. 6 (Linear Scale Pitch)
• No. 34 (Rated Speed)
• No. 36 (Number of Pulses per Linear Scale Pitch)
Example Settings Based on the Linear Motor Specifications
 Example Settings 1
The following table lists example settings for the following linear motor specifications.
• Linear scale pitch: 20 (μm)
• Serial converter resolution: 8 (bits)
• Rated speed: 1.5 (m/s)
Fixed parame-
ter No. 4
(Reference
Unit Selection)
pulse
mm
μm
1. In the following case, set fixed parameter No. 34 (Rated Speed) in units of 0.1 m/s.
• When fixed parameter No. 4 (Reference Unit Selection) is set to 0 (Pulses)
• When fixed parameter No. 6 (Linear Scale Pitch) is set in μm
Important
2. In the following case, set fixed parameter No. 34 (Rated Speed) in units of 0.1 mm/s.
• When fixed parameter No. 6 (Linear Scale Pitch) is set in nm

3B setting parameter (Bias Speed for Indexed Deceleration/
3B
Unit and Number of Digits
below the Decimal Point for
the Linear Scale Pitch and
Rated Speed
Linear scale pitch: μm
Rated speed: 0.1 m/s
Number of digits below the
decimal point: 3
Number of digits below the
decimal point: 0

5.1.8 Linear Scale Pitch and Rated Speed


3B, the exponential acceleration/deceleration
Exponential acceleration/deceleration filter is enabled.
Exponential acceleration/deceleration filter is disabled.
Example Settings
Linear scale pitch: 20 (μm)
Rated speed: 15 (0.1 m/s)
Number of pulses per linear scale pitch: 256 (pulses) = 2
Linear scale pitch: 20 (μm)
Rated speed: 15 (0.1 m/s)
Number of pulses per linear scale pitch: 256 (pulses) = 2
Linear scale pitch: 20 (μm)
Rated speed: 15,000 (0.1 mm/s)
Number of pulses per linear scale pitch: 256 (pulses) = 2
5.1 Motion Parameters
8
8
8
5-15
5