Replacing Advanced Motion Controls "brush type 12A8 with "Axcent" amplifier

More
5 years 11 months ago #188603 by Todd Zuercher
Hopefully connecting the new encoder backwards did not kill it.
The following user(s) said Thank You: new2linux

Please Log in or Create an account to join the conversation.

More
5 years 11 months ago - 5 years 11 months ago #188610 by new2linux
Todd, USPO just delivered (as per USPO promise of 3:00 PM delivery) new 7i77 card, tomorrow I will swap out, change jumpers position, review SW1 positions & use last wiring diagram (using pins 9 & 11). Todd, many thanks, for your continued support.

New 7i77 card installed, jumpers w10,13,15,17,19 & 21 to the left; SW1-1=OFF,-2=OFF,-3=OFF,-4=OFF,-5=ON & -6=OFF. The x axis runs away, as soon as e-stop is released (the yellow that shows motion of tool, that "ctrl+k clears" will be visible), if you set SW1-5=OFF the red LED is on driver, will slow the speed, still does not match DRO. The y axis osculates about a 1/3 turn, and then will oscillate back the 1/3 turn. Attached is a pic of debug info if you try to run linuxcnc w/o power to power supply.

Many thanks
Attachments:
Last edit: 5 years 11 months ago by new2linux. Reason: new card installed

Please Log in or Create an account to join the conversation.

More
5 years 11 months ago - 5 years 11 months ago #188670 by new2linux
Many thanks!! With linuxmint running, release e-stop and x axis motor starts motion, start linuxcnc and DRO is counting (the yellow line was moving off the screen to the right). The direction of the motor (as to move table as you stand in front of mill as to operate it, the table moves to left), I believe this matches DRO direction. All of this is while (F1, is clicked) if you release f1, no change; click f2 no change to DRO but (joint 0 error) will appear.

Y axis (as 1st boot up) DRO is moving (the DRO will start at 0.0 go to around +.028 & then go back to 0.0), very close to how x axis is working; if you try to turn motor shaft, it will resist, if quickly reverse direction you are tiring to turn shaft, it will resist; with f1 un-clicked and turn shaft will get (joint 0 error), I believe the joint error happens as soon as click f2.

Many thanks

Edit: Using HAL Configuration, under "Machine tab" (the screen says "show/watch" select a Leaf), what Leafs should I be watching? I look at say Pins, axis, 0; (top of list) Active, the yellow circle shows; I pick Motor-pos-cmd this will say 123.491. It is my thinking that the encoders need the e-stop released to start counting. I am not shore where I should be looking or testing.
Many thanks
Last edit: 5 years 11 months ago by new2linux. Reason: clearify; 2nd time

Please Log in or Create an account to join the conversation.

More
5 years 11 months ago - 5 years 11 months ago #188774 by new2linux
Many thanks, to all the members. Read USDigital information about location hub of the disk for encoder, the proper distance. After reset of the encoder hubs (center is not correct) with the e-stop released, start linuxcnc and motors are in motion; un-click F1 and click F2 and motors will stop, DRO will read correctly (at least direction: x table moves to left=positive DRO: Y moves table away from operator= negative on DRO); if you turn motor too fast or reverse direction it will have "joint 1 following error". All seems ok, but if you spin too fast or reverse direction then error will appear.
Many thanks!

Edit: Encoder info attachment:
Attachments:
Last edit: 5 years 11 months ago by new2linux. Reason: Encode distance attachment

Please Log in or Create an account to join the conversation.

More
5 years 11 months ago #188776 by tommylight

new2linux wrote: After reset of the encoder hubs (center is not correct) with the e-stop released, start linuxcnc and motors are in motion; un-click F1 and click F2 and motors will stop,

Sorry to repeat this, but that should not be happening under any circumstances, ever.
Drives/motors should not be enabled and moving until enabled in LinuxCNC and actually told to move.
The following user(s) said Thank You: new2linux

Please Log in or Create an account to join the conversation.

More
5 years 11 months ago - 5 years 11 months ago #188900 by new2linux
tommylight, many thanks for you help! I have used ohm meter to trace each lead from the encoders to the TB3 connection, so with 100%, know where each lead is connecting. I found issues, did not record them. Removed the leads from TB3 that are not being used (2 & 5).
Now with linuxmint running, release e-stop and motors are in motion, open linuxcnc, DRO is reading ok and F1 is down; x axis is run away, at low speed; y axis is oscillating about .140", back and forth; release F1 (up now), no change; click F2 (down now) both axis stop motion, you can turn motor shaft and move DRO the correct way.

Drive settings: X axis, SW1-6=on (if this is other way motor will still run away, and Red LED will be on drive)
Y axis, SW1-6=off (if this is other way motor will still run away)

The attached wiring diagram was used as reference during wiring. The address of TB5 is 1=ENAO-; 2=ENAO+; 3=GND; & 4=AOUTO. This is not included diagram. Does diagram look ok?

many thanks, for all the continued support.

Edit: The diagram shows no lead from P1-11 GND (Signal Ground) and (Location 3) GND on TB3. Should there be?
Attachments:
Last edit: 5 years 11 months ago by new2linux. Reason: Ask question about GND;

Please Log in or Create an account to join the conversation.

Time to create page: 3.161 seconds
Powered by Kunena Forum