stepper driven turret with index and home switch
26 Feb 2024 22:28 #294552
by PaulQUE
Replied by PaulQUE on topic stepper driven turret with index and home switch
thanks, I've made progress on the carousel, the comps reads and understands my encoder input, when I call a tool using M6 the carousel outputs a velocity command to the stepgen, which I can see is received by the stepgen in halshow, however I get no step rate (looking at the dbg pin), I suspect I've have something set up wrong with the velocity mode stepgen, would you mind telling me what's wrong with it? Sorry for the dumb question
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26 Feb 2024 22:35 - 26 Feb 2024 22:43 #294553
by PCW
Replied by PCW on topic stepper driven turret with index and home switch
1: Control type must be 1 for velocity mode:
setp [HMOT](CARD0).stepgen.02.control-type 1
edit:
I see you did enable the stepgen below:
setp hm2_7i96s.0.stepgen.02.enable true
setp [HMOT](CARD0).stepgen.02.control-type 1
edit:
I see you did enable the stepgen below:
setp hm2_7i96s.0.stepgen.02.enable true
Last edit: 26 Feb 2024 22:43 by PCW.
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27 Feb 2024 00:00 - 27 Feb 2024 00:01 #294557
by PaulQUE
Replied by PaulQUE on topic stepper driven turret with index and home switch
thanks, the motor is now turning I've noticed the tool called via M6 T- does not match the carousel pocket number in halshow?
-I still have a few issues to sort out, mainly, how to set up a small back up move to latch the turret? I've seen the carousel.N.motor-rev pin but how Can I get it to trigger a reverse move of the stepgen?
-the turret homes when the first tool is called and stops on the home position regardless of the tool called? Should I get it to home prior to calling tools, if so, how?
thanks
-I still have a few issues to sort out, mainly, how to set up a small back up move to latch the turret? I've seen the carousel.N.motor-rev pin but how Can I get it to trigger a reverse move of the stepgen?
-the turret homes when the first tool is called and stops on the home position regardless of the tool called? Should I get it to home prior to calling tools, if so, how?
thanks
Last edit: 27 Feb 2024 00:01 by PaulQUE.
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27 Feb 2024 08:57 #294583
by andypugh
Replied by andypugh on topic stepper driven turret with index and home switch
You set the reverse pulse with a combination of these pins:
carousel.N.rev-pulse float in
The duration in seconds for which a ratchet changer (Boxford, Emco) should pulse the reverse pin to lock the holder
carousel.N.fwd-dc float in
Velocity or duty cycle when forwards rotation is desired
carousel.N.rev-dc float in
Velocity or duty cycle when reverse rotation is desired
carousel.N.hold-dc float in
Duty cycle when carousel is in-position (to hold against stop)
In your case try a rev-pulse of 1 second and a hold-dc of zero. (hold-dc is only really relevant to dc motor operation of ratchet toolchangers)
carousel.N.rev-pulse float in
The duration in seconds for which a ratchet changer (Boxford, Emco) should pulse the reverse pin to lock the holder
carousel.N.fwd-dc float in
Velocity or duty cycle when forwards rotation is desired
carousel.N.rev-dc float in
Velocity or duty cycle when reverse rotation is desired
carousel.N.hold-dc float in
Duty cycle when carousel is in-position (to hold against stop)
In your case try a rev-pulse of 1 second and a hold-dc of zero. (hold-dc is only really relevant to dc motor operation of ratchet toolchangers)
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