Teknic Clearpath SDSK with HLFB + MESA 7i76e

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8 years 3 months ago #114031 by Omnis
UPDATE:
So far I have gotten a couple setups working. with HLFB and linuxcnc.
wiring:
Connect Green wire to the assigned output pin then daisy chain all HLFB wires on all motors green to red on the last motor hook the left over red wire to ground.
software(MSP&Linuxcnc) options:
1. (a)as a charge pump: set Hlfb to "servo on" in MSP, (b)set an output pin in Lcnc as "charge pump",
2. Enable set Hlfb to "in-range" in MSP then set the values in advanced move done criteria, (b)set an output pin in Lcnc as "enable", (c)Connect Green wire to the assigned output pin then daisy chain all HLFB wires on all motors green to red on the last motor hook the left over red wire to ground.
3. broken/clogged tool sense might also be possible with ASG torque in msp and enable in lcnc with a bit of tweaking.(haven't fully tested)
4. use of ASG-Position for move verification for future moves.
For example, when a homing routine completes, this output will change states.
So, instead of waiting for an operator input to continue or a timer that calculates the worst case time for homing to complete, this could be programmed to be handled automatically based on the ASG-Position state.

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6 years 9 months ago - 6 years 9 months ago #155109 by MovT
Hi.

I need to push the thread because i want to use the SDSK in the same way. I scanned the whole internet with no luck. Is there a tutorial out for LinuxCNC?

Thanks.

Udo
Last edit: 6 years 9 months ago by MovT.

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6 years 9 months ago - 6 years 9 months ago #155188 by andypugh

MovT wrote: I need to push the thread because i want to use the SDSK in the same way. I scanned the whole internet with no luck. Is there a tutorial out for LinuxCNC?


Specifically for the SDSK or for LinuxCNC in general?

I am not clear if you have a LinuxCNC up and running and need help with a specific hardware interface, or whether you want to know if LinuxCNC can do the task that you have for it?
Last edit: 6 years 9 months ago by andypugh.

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6 years 9 months ago #155789 by MovT
Hi Andy.

I have a LinuxCNC 2.8 up and running. I also have the CP SDSK 2321 ELN running. I want to add a security feature to the router which will trigger the E-Stop signal when the CP runs in an error, like position error or overload.

I have got the firmware update from Teknic to version 1.7 for the servos. Now i can use quadrature and the HLFB to get the ASG signal.

What i need is the HAL part for that and the wiring for quadrature and HLFB on my MESA 7i76.

I am new to LinuxCNC but i am so exited about the possibilities of LCNC. My goal is a setup that prevent the machine to crash and want the highest speed i can get out of it in rapids and feed.

Best,
Udo

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6 years 9 months ago - 6 years 9 months ago #156043 by andypugh
Let's take these questions one at a time, starting with the simplest.

To e-stop when the drivers report an error, take the driver error output to a GPIO pin, and then in HAL link that to the corresponding amp-fault-in pin:

linuxcnc.org/docs/2.7/html/man/man9/motion.9.html
Last edit: 6 years 9 months ago by andypugh.

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