Another plasma component...

More
30 May 2019 05:18 #135358 by phillc54
Rod and/or John,
Could you please try this:
In plasmac_buttons.glade change line 4 with a text editor from:
  <requires lib="gtk+" version="2.24"/>
to:
  <requires lib="gtk+" version="2.18"/>

Cheers, Phill.

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

More
30 May 2019 06:07 #135359 by AgentWD40

phillc54 wrote:

All I know is i'm to wire into encoder A

Yes, the THCAD wires into encoder A

- run LinuxCNC
- open halshow and watch plasmac.arc-voltage-in and plasmac.arc-voltage-out
- set Voltage Scale in the Plasma Config tab to 1
- set Voltage Offset in the Plasma Config tab to the value read from plasmac.arc-voltage-in
- apply a known voltage to the TCHCAD input
- set Voltage Scale in the Plasma Config tab to (known-voltage / plasmac.arc-voltage-out)
you could probably keep tweaking to fine tune further.

Basically:
Voltage Offset sets the displayed voltage to 0 when there are zero volts present.
Voltage Scale set the voltage to the correct value for a known voltage.

Cheers, Phill.


I must be missing something. plasmac.arc-voltage-in voltage-out, as well as hm2_7i96.0.encoder.00.velocity don't show anything, all zero.

Is there another component I need to load?

The thcad is blinking, and blinks faster when I put voltage on the input. I tried F/1 and F/32. Also, the bipolar/unipoler jumper is confusing referencing the silkscreen vs the manual.

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

More
30 May 2019 06:28 #135360 by phillc54

I must be missing something. plasmac.arc-voltage-in voltage-out, as well as hm2_7i96.0.encoder.00.velocity don't show anything, all zero.

if hm2_7i96.0.encoder.00.velocity shows zero then you must be missing a connection, you need 0V, +5V, FO- to ENCA- and FO+ to ENCA+ (that is to my 7i76E at least)

Is there another component I need to load?

You shouldn't need anything else.

The thcad is blinking, and blinks faster when I put voltage on the input. I tried F/1 and F/32.

I have mine at F/32 (recommended by PCW)

Also, the bipolar/unipoler jumper is confusing referencing the silkscreen vs the manual.

Yes, I see what you mean, mine is set as on the silkscreen, W1 is up for Unipolar


Cheers, Phill.

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

More
30 May 2019 06:38 #135362 by JTknives
I did get my torch start problem figured out. I had the arc voltage set to to high so sometimes it would not hit that voltage and would error out.
The following user(s) said Thank You: phillc54

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

More
30 May 2019 06:41 #135363 by rodw
Replied by rodw on topic Another plasma component...

AgentWD40 wrote: [
Speaking of barebone config, the last hal component I need to hook up is the torch voltage. I'm running a 7i96 and a thcad10. What lines do I need to get the thc hooked up? Right now the only hal config I have in regard to this is

net plasmac:arc-voltage-in hm2_7i96.0.encoder.00.velocity => plasmac.arc-voltage-in

But it's just a placeholder to get the config to load until I figure out what it's supposed to be. All I know is i'm to wire into encoder A and somehow calibrate with the sticker on the back of the thcad card. I know the THCAD manual has a simple formula for converting the frequency to voltage with these calibration figures, but when I was looking through plasmac.comp I didn't see where I use these.


I disagree with Phill here. you don't need to put a voltage on the input as you have the calibration data from mesa so you know what it will be reading at 10 volts.
Make sure the board is set to 1/32 divide mode on the link on the THCAD. Divide both values on the board by 32 and write them down. Work out what will be the actual volts indicated. Say you have a 30:1 divider and full scale frequency is 28000. 10 volts x 30 = 300 volts. So your scale is 300/28,000 = 0.0107 and your offset will be 1/32 of the 0 volt frequency you wrote down earlier (probably around 3800)

The 1/32 setting is better for LInuxCNC's servo thread speed and allows more accurate sampling by the THCAD via some kind of averaging algorithim in the chip.

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

More
30 May 2019 07:33 #135366 by rodw
Replied by rodw on topic Another plasma component...

AgentWD40 wrote: I must be missing something. plasmac.arc-voltage-in voltage-out, as well as hm2_7i96.0.encoder.00.velocity don't show anything, all zero.

Here is my THCAD connection pinouts. Ignore the numbers in brackets. Theu are specific to my machine
Attachments:
The following user(s) said Thank You: AgentWD40

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

More
30 May 2019 07:37 - 30 May 2019 07:42 #135368 by AgentWD40
Thank you rod, I actually found your pinout chart a little while ago. That's when I decided I better use the frequency divider.

Anyway, I figure troubleshooting my THCAD may be getting off topic here. I've posted some more info over here: forum.linuxcnc.org/27-driver-boards/3659...6-and-thcad?start=30
Last edit: 30 May 2019 07:42 by AgentWD40.
The following user(s) said Thank You: rodw

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

More
30 May 2019 13:39 - 30 May 2019 13:44 #135388 by islander261
Phill

Here you go:
jd@plasma1 ~ $ lsb_release -a
No LSB modules are available.
Distributor ID:	LinuxMint
Description:	LMDE 2 Betsy
Release:	2
Codename:	betsy

I run the Cinnamon desk top.

Also:
jd@plasma1 ~ $ uname -a
Linux plasma1 4.1.15-rt17mah #1 SMP PREEMPT RT Fri Feb 26 23:43:49 PST 2016 x86_64 GNU/Linux
jd@plasma1 ~ $ lsmod
Module                  Size  Used by
cfg80211              372736  0 
bnep                   20480  2 
bluetooth             270336  5 bnep
cpufreq_userspace      16384  0 
rfkill                 20480  3 cfg80211,bluetooth
cpufreq_conservative    16384  0 
cpufreq_stats          16384  0 
cpufreq_powersave      16384  0 
pci_stub               16384  1 
vboxpci                20480  0 
vboxnetadp             28672  0 
vboxnetflt             24576  0 
binfmt_misc            16384  1 
vboxdrv               307200  3 vboxnetadp,vboxnetflt,vboxpci
nls_utf8               16384  0 
cifs                  233472  0 
fscache                45056  1 cifs
fuse                   77824  3 
ecryptfs               73728  0 
lp                     16384  0 
dm_crypt               24576  0 
uinput                 20480  1 
coretemp               16384  0 
kvm_intel             135168  0 
kvm                   360448  1 kvm_intel
joydev                 20480  0 
snd_hda_codec_analog    16384  1 
snd_hda_codec_generic    53248  1 snd_hda_codec_analog
snd_hda_intel          28672  3 
snd_hda_controller     24576  1 snd_hda_intel
microcode              20480  0 
iTCO_wdt               16384  0 
snd_hda_codec          77824  4 snd_hda_codec_generic,snd_hda_intel,snd_hda_controller,snd_hda_codec_analog
dcdbas                 16384  0 
iTCO_vendor_support    16384  1 iTCO_wdt
ppdev                  16384  0 
serio_raw              16384  0 
pcspkr                 16384  0 
acpi_cpufreq           16384  0 
snd_hda_core           24576  4 snd_hda_codec_generic,snd_hda_codec,snd_hda_controller,snd_hda_codec_analog
processor              28672  1 acpi_cpufreq
lpc_ich                24576  0 
mfd_core               16384  1 lpc_ich
evdev                  20480  15 
parport_pc             24576  1 
snd_hwdep              16384  1 snd_hda_codec
snd_pcm                73728  3 snd_hda_codec,snd_hda_intel,snd_hda_controller
tpm_tis                20480  0 
parport                36864  3 lp,ppdev,parport_pc
shpchp                 32768  0 
tpm                    28672  1 tpm_tis
snd_timer              24576  1 snd_pcm
snd                    53248  13 snd_hwdep,snd_timer,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_hda_codec_analog
soundcore              16384  1 snd
ext4                  425984  1 
crc16                  16384  2 ext4,bluetooth
jbd2                   77824  1 ext4
mbcache                16384  1 ext4
dm_mirror              20480  0 
dm_region_hash         16384  1 dm_mirror
dm_log                 16384  2 dm_region_hash,dm_mirror
dm_mod                 90112  3 dm_log,dm_mirror,dm_crypt
sg                     28672  0 
sd_mod                 32768  3 
hid_generic            16384  0 
usbhid                 40960  0 
ata_generic            16384  0 
hid                    94208  2 hid_generic,usbhid
psmouse                94208  0 
ata_piix               32768  2 
libata                167936  2 ata_generic,ata_piix
i2c_i801               20480  0 
scsi_mod              180224  3 sg,libata,sd_mod
i915                  864256  3 
8139too                28672  0 
8139cp                 24576  0 
mii                    16384  2 8139cp,8139too
tg3                   139264  0 
ptp                    20480  1 tg3
pps_core               16384  1 ptp
libphy                 24576  1 tg3
video                  20480  1 i915
i2c_algo_bit           16384  1 i915
drm_kms_helper         77824  1 i915
uhci_hcd               28672  0 
ehci_pci               16384  0 
ehci_hcd               45056  1 ehci_pci
drm                   237568  5 i915,drm_kms_helper
button                 16384  1 i915
usbcore               147456  4 uhci_hcd,ehci_hcd,ehci_pci,usbhid
usb_common             16384  1 usbcore
i2c_core               40960  5 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit
thermal_sys            28672  2 video,processor

John
Last edit: 30 May 2019 13:44 by islander261.

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

More
30 May 2019 23:35 #135439 by phillc54
Thanks John,

I managed to find LMDE2 and made a new virtual machine last night, loaded all the dependencies, cloned plasmac and built LinuxCNC.
The colors work fine, I really don't know where to go from here...:(
Did you guys try the mod to the glade file?

Cheers, Phill.

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

More
31 May 2019 14:42 - 31 May 2019 15:01 #135473 by AgentWD40
You guys think a THCAD calibration setting calculator like this would be a useful addition to something like the configurator?
jscalc.io/calc/NTr5QDX6WgMThBVb

[edit]
I hope it works right because I can't figure out how to get back in to edit the stupid thing.. anyway I figure
scale = thcad_model_voltage * frequency_divider * plasma_divider_ratio / (max_voltage_frequency - zero_voltage_frequency)
offset = zero_voltage_frequency / frequency_divider

where max_voltage_frequency and zero_voltage_frequency are from the calibration sticker x1000
Last edit: 31 May 2019 15:01 by AgentWD40.

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

Time to create page: 0.148 seconds
Powered by Kunena Forum