Ethercat HAL driver

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11 years 8 months ago #55578 by andypugh
Replied by andypugh on topic Ethercat HAL driver

sdfzz wrote: And line 380 of linuxcnc/src/emc/motion/homing.c is commented out,


Oh. No wonder I didn't guess!
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11 years 8 months ago #55600 by roschi
Replied by roschi on topic Ethercat HAL driver
The issue about the homing in the repos github.com/aschiffler/linuxcnc is fixed

The intention to modify the homing source code was about the following cases:
- absolut / multi turn encoder --> HOME_SEARCH_VEL = 0.0 HOME_LATCH_VEL = 6.6; axis is homed at actual position feedback value; no movement
- drive driven homing sequence and switches connected directly to drives --> HOME_SEARCH_VEL = 0.0 HOME_LATCH_VEL = 9.9; NC waits for home-sw-in and assumes movement by the drive it self; axis is homed to position HOME_OFFSET (home-sw-in HAL pin is connected via EtherCAT to corresponding bit in status word of the drive)
- (Standard) NC driven homing sequence --> HOME_SEARCH_VEL != 0.0 HOME_LATCH_VEL != 0.0; NC commands the joint; axis is homed to position HOME_OFFSET
- (Standard) No homing needed / simulation --> HOME_SEARCH_VEL = 0.0 HOME_LATCH_VEL = 0.0
The following user(s) said Thank You: serdigi
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11 years 8 months ago #55648 by andypugh
Replied by andypugh on topic Ethercat HAL driver

roschi wrote: - absolut / multi turn encoder --> HOME_SEARCH_VEL = 0.0 HOME_LATCH_VEL = 6.6; axis is homed at actual position feedback value; no movement
- drive driven homing sequence and switches connected directly to drives --> HOME_SEARCH_VEL = 0.0 HOME_LATCH_VEL = 9.9


Magic numbers? Not normally recommended, because somebody might choose those numbers deliberately.

(I suppose that 99999999 and 66666666 would be OK, as nobody will ever home that fast.)
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11 years 8 months ago #55658 by sdfzz
Replied by sdfzz on topic Ethercat HAL driver
Roschi,

Thank you for your reply. I was aware of 6.6 and 9.9 settings.... I saw it from your previous comments. I guess it is a way to select the desired homing mode, although without a proper documentation, it may cause confusions.

Also, thank you for the fix.

Regards,

Steve
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11 years 8 months ago #55659 by sdfzz
Replied by sdfzz on topic Ethercat HAL driver
Sascha,

I tried your new project. Installation was much easier, and now I can jog and home my axis.

Thank you!
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11 years 7 months ago #56611 by kyoshiro1108
Replied by kyoshiro1108 on topic Ethercat HAL driver
the first error :Mailbox corrupt received

I've encountered this issue two month ago.
you need to contact the drive manufacturor and update your driver version to 2.0.0
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