open loop servo tuning.
08 May 2019 12:14 #133132
by andypugh
Replied by andypugh on topic open loop servo tuning.
Can you attach the actual INI file?
Stepgen limits normally belong in the Axis section. Though the HAL file can, in theory, look anywhere.
And nothing will jog faster than [TRAJ]MAX_VELOCITY
linuxcnc.org/docs/2.7/html/config/ini-config.html#_traj_section
Stepgen limits normally belong in the Axis section. Though the HAL file can, in theory, look anywhere.
And nothing will jog faster than [TRAJ]MAX_VELOCITY
linuxcnc.org/docs/2.7/html/config/ini-config.html#_traj_section
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08 May 2019 12:21 - 08 May 2019 12:40 #133133
by skvallab
Replied by skvallab on topic open loop servo tuning.
attaching my ini file
Last edit: 08 May 2019 12:40 by skvallab.
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08 May 2019 15:00 #133149
by andypugh
Replied by andypugh on topic open loop servo tuning.
You can remove the STEPGEN_MAX_xxx stuff from [TRAJ] as it isn't used with a PPMC config, and the entries don't belong there anyway.
Increasing the PID_MAX_VEL was the way to go.
I suspect that the problem is the [TRAJ]MAX_VELOCITY
You might also try adding a [DISPLAY]MAX_ANGULAR_VELOCITY as the problem might just be that the GUI doesn't let you turn the angular jog rate up that far.
Increasing the PID_MAX_VEL was the way to go.
I suspect that the problem is the [TRAJ]MAX_VELOCITY
You might also try adding a [DISPLAY]MAX_ANGULAR_VELOCITY as the problem might just be that the GUI doesn't let you turn the angular jog rate up that far.
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10 May 2019 05:16 #133325
by skvallab
Replied by skvallab on topic open loop servo tuning.
[TRAJ]
i dont have anything listed as traj.
but i have a motor mounted on the linear actuator , but their values are not inter related.
should add both the motors in TRAJ section?
i dont have anything listed as traj.
but i have a motor mounted on the linear actuator , but their values are not inter related.
should add both the motors in TRAJ section?
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10 May 2019 12:53 - 10 May 2019 12:54 #133349
by Todd Zuercher
Yes you do, in your ini file posted above, this section is what Andy is refering to.
Replied by Todd Zuercher on topic open loop servo tuning.
[TRAJ]
i dont have anything listed as traj.
but i have a motor mounted on the linear actuator , but their values are not inter related.
should add both the motors in TRAJ section?
Yes you do, in your ini file posted above, this section is what Andy is refering to.
# Trajectory planner section --------------------------------------------------
[TRAJ]
AXES = 3
# COORDINATES = X Y Z
COORDINATES = X Y Z
HOME = 0 0 0
LINEAR_UNITS = mm
ANGULAR_UNITS = degree
CYCLE_TIME = 0.010
DEFAULT_VELOCITY = 0.167
MAX_VELOCITY = 100
DEFAULT_ACCELERATION = 300.0
MAX_ACCELERATION = 500.0
STEPGEN_MAXACCEL = 750.0
Last edit: 10 May 2019 12:54 by Todd Zuercher.
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