Difference between revisions of "Configuring linear servo motor"
From Granite Devices Knowledge Wiki
(Created page with "A typical sealed linear encoder Ironless linear motor cross-section Linear servo motor is an ac...") |
(No difference)
|
Revision as of 20:42, 27 September 2013
Linear servo motor is an actuator producing linear force or motion and is constructed from a linear motor and a linear feedback device such as linear encoder.
Linear servo motor is electrically equivalent to a rotary motor, so drive sees no difference between the two. However, as drive parameters are entered for rotary motor only, they need some calculations to suit for linear motor.
Configuration
Preparations
Needed parameters of linear motor:
- Magnetic pole pitch (or pole pair pitch)
- Forcer winding specifications:
- Maximum currents: continuous and peak
- Inductance and resistance
- Thermal time constant (optional but recommended)
Needed linear feedback device parameters:
- Resolution (lines or pulses per millimeter)
Conversion of parameters
In this step we convert the values so that motor can be driven from a servo drive. The drive is made to believe that the linear motor is rotary motor, so we need to figure out the equivalent rotary motor parameters. This example works with Granity software.
