Gantry hal example
- mjohnsonsa
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27 May 2016 17:24 #75168
by mjohnsonsa
Replied by mjohnsonsa on topic Gantry hal example
Yes thank you. I was meaning exactly what you described but saying it wrong. What I meant is independently search and latch I guess.
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16 Dec 2016 04:19 #84248
by grijalvap
Replied by grijalvap on topic Gantry hal example
how do you reversed the direction for the second motor in the gantry?
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16 Dec 2016 10:52 #84265
by andypugh
You can make the scale of the stepgen negative, or invert the direction pin. (or swap the wires on one of the stepper motor phases)
Replied by andypugh on topic Gantry hal example
how do you reversed the direction for the second motor in the gantry?
You can make the scale of the stepgen negative, or invert the direction pin. (or swap the wires on one of the stepper motor phases)
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23 Dec 2016 05:56 #84594
by grijalvap
Replied by grijalvap on topic Gantry hal example
thanks for your help
Now I have other question, anybody knows the best way to implement a stop on crash system for the plasma
I already have the hardware and sensors ready, but I don't know the correct signals to use.
Now I have other question, anybody knows the best way to implement a stop on crash system for the plasma
I already have the hardware and sensors ready, but I don't know the correct signals to use.
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23 Dec 2016 08:07 - 23 Dec 2016 08:07 #84598
by rodw
So I'm assuming you want to force an estop if the torch crashes and the breakaway sensor is activated.
Start by rephrasing that:
If the external estop button is pressed OR the torch breakaway is active then (e)stop the machine.
Here is how I did it by adding an extra or.2 component.
So now activating the breakway or the external estop button raise an e-stop.
Replied by rodw on topic Gantry hal example
thanks for your help
Now I have other question, anybody knows the best way to implement a stop on crash system for the plasma
I already have the hardware and sensors ready, but I don't know the correct signals to use.
So I'm assuming you want to force an estop if the torch crashes and the breakaway sensor is activated.
Start by rephrasing that:
If the external estop button is pressed OR the torch breakaway is active then (e)stop the machine.
Here is how I did it by adding an extra or.2 component.
loadrt or2 count=3
addf or2.0 servo-thread
addf or2.1 servo-thread
# next one is for breakaway sensor
addf or2.2 servo-thread
# --- ESTOP CHAIN STARTS ---
net estop-loopout iocontrol.0.emc-enable-in <= estop-latch.0.ok-out
net estop-loopin iocontrol.0.user-enable-out => estop-latch.0.ok-in
net estop-reset iocontrol.0.user-request-enable => estop-latch.0.reset
#net remote-estop estop-latch.0.fault-in <= hm2_7i76e.0.7i76.0.0.input-00
# --- EXTERNAL ESTOP SWITCH ---
net external-estop or2.2.in0 <= hm2_7i76e.0.7i76.0.0.input-00
# --- TORCH BREAKAWAY E-STOP ---
net torch-breakaway or2.2.in1 <= hm2_7i76e.0.7i76.0.0.input-06
net remote-estop estop-latch.0.fault-in <= or2.2.out
net estop-out estop-latch.0.fault-outSo now activating the breakway or the external estop button raise an e-stop.
Last edit: 23 Dec 2016 08:07 by rodw.
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05 Jan 2017 05:15 #85273
by grijalvap
Replied by grijalvap on topic Gantry hal example
Thanks the crash is working ok now, also I have configured the gantry with 2 motors and reversed one of them.
do you know why the slave (second y-axis) have a different control mode one have velocity and the other position
I'm experiencing some vibration on the slave side of gantry and no sure why any clue?
thanks
do you know why the slave (second y-axis) have a different control mode one have velocity and the other position
I'm experiencing some vibration on the slave side of gantry and no sure why any clue?
thanks
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05 Jan 2017 11:41 #85280
by andypugh
That sounds like a bad idea.
Replied by andypugh on topic Gantry hal example
do you know why the slave (second y-axis) have a different control mode one have velocity and the other position
That sounds like a bad idea.
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05 Jan 2017 20:48 #85302
by grijalvap
Replied by grijalvap on topic Gantry hal example
I forget to mention I'm using mesa 7i76e ethernet board,
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05 Jan 2017 23:51 #85316
by andypugh
That still doesn't explain why one stepgen would be velocity mode and the other position mode. They should both be the same.
Replied by andypugh on topic Gantry hal example
I forget to mention I'm using mesa 7i76e ethernet board,
That still doesn't explain why one stepgen would be velocity mode and the other position mode. They should both be the same.
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