NAME
spindle - Control a spindle with different acceleration and deceleration and optional gear change scalingSYNOPSIS
loadrt
spindle [count=
N|names=name1[,name2...]]
DESCRIPTION
This component will control a spindle with adjustable acceleration and deceleration.NOTE: This component is unfortunately named and creates pins with names very much like those created by the motion component.
In nearly every case this is not the documentation page that you are looking for.
See http://linuxcnc.org/docs/html/man/man9/motion.9.html instead.
FUNCTIONS
- spindle.N (requires a floating-point thread)
PINS
- spindle.N.select-gear u32 in
- Select a gear. Must be in the range 0 -> number of available gears -1. If you use this, do not use the select.x input pins.
- spindle.N.commanded-speed float in
- Commanded spindle speed (in RPM)
- spindle.N.actual-speed float in
- Actual spindle speed from a spindle encoder (in RPS). If you do not have a spindle encoder set the simulate_encoder parameter to 1.
- spindle.N.simulate-encoder bit in
- If you do not have an encoder, set this to 1.
- spindle.N.enable bit in
- If FALSE, the spindle is stopped at the gear's maximum deceleration.
- spindle.N.spindle-lpf float in
- Smooth the spindle-rpm-abs output when at speed, 0 = disabled. Suitable values are probably between 1 and 20 depending on how stable your spindle is.
- spindle.N.spindle-rpm float out
- Current spindle speed in RPM.+ve = forward, -ve = reverse. Uses the encoder input if available. If not, uses a simulated encoder speed.
- spindle.N.spindle-rpm-abs float out
- Absolute spindle speed in RPM. Useful for spindle speed displays.
- spindle.N.output float out
- Scaled output
- spindle.N.current-gear u32 out
- Currently selected gear.
- spindle.N.at-speed bit out
- TRUE when the spindle is at speed
- spindle.N.forward bit out
- TRUE for forward rotation
- spindle.N.reverse bit out
- TRUE for reverse rotation. Both forward and reverse are false when the spindle is stopped.
- spindle.N.brake bit out
- TRUE when decelerating
- spindle.N.zero-speed bit out
- TRUE when the spindle is stationary
- spindle.N.limited bit out
- TRUE when the commanded spindle speed is >max or <min.
SEE ALSO
motion(9)NOTES
- The following pins are created depending the 'numgears=' parameter.
- One of each pin is created for each gear. If no gears are
specified then one gear will be created. For instance if you have gears=2
on your command line, you will have two scale pins:
spindle.N.scale.0
spindle.N.scale.1
- spindle.N.scale.x float in
- Scale the output. For multiple gears you would use a different scale for each gear. If you need to reverse the output for some gears, use a negative scale.
- spindle.N.min.x float in
- Set the minimum speed allowed (in RPM). The limit output will be TRUE while the commanded speed is between 0 RPM and the min speed.
- spindle.N.max.x float in
- Set the maximum speed allowed (in RPM). The limit output will be TRUE while the commanded speed is above this value.
- spindle.N.accel.x float in
- Set the maximum acceleration. If you do not have a spindle encoder this is in RPM/second. If you do have an encoder the output is the actual speed plus this value. This way the acceleration can be dependent on the spindle load.
- spindle.N.decel.x float in
- Set the minimum deceleration. If you do not have a spindle encoder this is in RPM/second. If you do have an encoder the output is the actual speed minus this value.
- spindle.N.speed-tolerance.x float in Tolerance for 'at-speed' signal (in RPM).
- Actual spindle speeds within this amount of the commanded speed will cause the at-speed signal to go TRUE.
- spindle.N.zero-tolerance.x float in Tolerance for 'zero-speed' signal (in RPM).
- spindle.N.offset.x float in
- The output command is offset by this amount (in RPM).
- spindle.N.select.x bit in
- Selects this gear. If no select inputs are active, gear 0 is selected. If multiple select inputs are active then the highest is selected.
AUTHOR
Les NewellLICENSE
GPL| 2023-02-10 | LinuxCNC Documentation |