huanyang vfd & linuxcnc 2.7
31 May 2015 19:52 - 31 May 2015 19:59 #59266
by vre
Huanyang hy20d223b spindle 800w 220v 5a 24000rpm 400hz.
motor rotates at pd144 setting independely from that i set in linuxcnc
Replied by vre on topic huanyang vfd & linuxcnc 2.7
How exactly is the rpm off?
is it 7000 rpm offset at all commanded speeds?
is it 3.33333 times as much as you command?
What is your VFD model #, and what kind of spindle did you get (rpm and KW)
tell me your PD settings for:
PD003=0.0
PD004=400
PD005=400
PD007=0.50
PD008=220
PD141=220.0
PD142=5.0
PD143=02
PD144=3000
Huanyang hy20d223b spindle 800w 220v 5a 24000rpm 400hz.
motor rotates at pd144 setting independely from that i set in linuxcnc
Last edit: 31 May 2015 19:59 by vre.
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31 May 2015 20:31 #59267
by alan_3301
Replied by alan_3301 on topic huanyang vfd & linuxcnc 2.7
based on the description of PD003. it shouldnt matter what it is set at, they describe it as a default operating frequency.
However, I would set it to 400 and see if that takes care of your problem.
Your other settings look ok.
The definition of pd144 is the motor rpm @ 50 hz. For a 24k rpm 2 pole motor, this should be 3000.
Not sure why you are stuck at 3000rpm.
can you record what the vfd shows for frequency and rpm, as well as what linuxcnc shows for speed.
However, I would set it to 400 and see if that takes care of your problem.
Your other settings look ok.
The definition of pd144 is the motor rpm @ 50 hz. For a 24k rpm 2 pole motor, this should be 3000.
Not sure why you are stuck at 3000rpm.
can you record what the vfd shows for frequency and rpm, as well as what linuxcnc shows for speed.
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01 Jun 2015 00:35 - 01 Jun 2015 00:48 #59268
by vre
Replied by vre on topic huanyang vfd & linuxcnc 2.7
i set PD003=400 but no change
linuxcnc shows correct rpm the same with the vfd.Also correct other infos.
All are correct but can not set the rpm runs constantly at 3000rpm.
One other thing is that PD02 goes from 0 to 3 and manual writes nothing about 3 option if i set it to 3 then
spindle runs constantly to 10000 rpm and accepts commands from linuxcnc like 2 option.
Here the 15 line github.com/bebro/linuxcnc-huanyang-vfd/b...s/custom_postgui.hal
has comment.
If i remove comment linuxcnc do not start.
I think will go with the classic solution with 2 relays for cw ccw and pwm 0-10v for setting speed.
linuxcnc shows correct rpm the same with the vfd.Also correct other infos.
All are correct but can not set the rpm runs constantly at 3000rpm.
One other thing is that PD02 goes from 0 to 3 and manual writes nothing about 3 option if i set it to 3 then
spindle runs constantly to 10000 rpm and accepts commands from linuxcnc like 2 option.
Here the 15 line github.com/bebro/linuxcnc-huanyang-vfd/b...s/custom_postgui.hal
has comment.
If i remove comment linuxcnc do not start.
I think will go with the classic solution with 2 relays for cw ccw and pwm 0-10v for setting speed.
Last edit: 01 Jun 2015 00:48 by vre.
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01 Jun 2015 01:18 #59269
by andypugh
The commented-out line appears to be the one that sends the frequency command to the VFD, so that seems like an adequate explanation of why it isn't working.
Un-comment the line and see exactly what it is that LinuxCNC complains about. It will either be that a pin is already connected somewhere else, or a pin-name has been spelled wrong.
Fix the problem and you should be there.
Replied by andypugh on topic huanyang vfd & linuxcnc 2.7
Here the 15 line github.com/bebro/linuxcnc-huanyang-vfd/b...s/custom_postgui.hal
has comment.
If i remove comment linuxcnc do not start.
The commented-out line appears to be the one that sends the frequency command to the VFD, so that seems like an adequate explanation of why it isn't working.
Un-comment the line and see exactly what it is that LinuxCNC complains about. It will either be that a pin is already connected somewhere else, or a pin-name has been spelled wrong.
Fix the problem and you should be there.
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01 Jun 2015 02:12 #59270
by vre
Replied by vre on topic huanyang vfd & linuxcnc 2.7
i have uncomment line 15 and now
custom_postgui.hal:15: Pin 'pyvcp.frequency-command' does not exist
Shutting down and cleaning up LinuxCNC...Please Log in or Create an account to join the conversation.
01 Jun 2015 02:17 #59271
by andypugh
What that means is either that your PyVCP panel does not have a frequency display, or that it is called something other than pyvcp.frequency-command
As a quick test, just delete pyvcp.frequency-command from that HAL line
(That still might not work, I have no idea if the "hy-Freq-Cmd" signal is connected to anything at the other end.)
Replied by andypugh on topic huanyang vfd & linuxcnc 2.7
i have uncomment line 15 and now
custom_postgui.hal:15: Pin 'pyvcp.frequency-command' does not exist Shutting down and cleaning up LinuxCNC...
What that means is either that your PyVCP panel does not have a frequency display, or that it is called something other than pyvcp.frequency-command
As a quick test, just delete pyvcp.frequency-command from that HAL line
(That still might not work, I have no idea if the "hy-Freq-Cmd" signal is connected to anything at the other end.)
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01 Jun 2015 02:27 #59272
by vre
Replied by vre on topic huanyang vfd & linuxcnc 2.7
i have added to pyvcp panel custompanel.xml this
and now starts ok but the same problem can not set the rpm
<tablesticky sticky="w" />
<label>
<text>"Frequency command: "</text>
</label>
<tablesticky sticky="e" />
<number>
<halpin>"frequency-command"</halpin>
<format>"4.0f"</format>
</number>
<tablerow/>and now starts ok but the same problem can not set the rpm
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01 Jun 2015 02:31 #59273
by andypugh
So, what else is the signal "hy-Freq-Cmd" connected to in the HAL?
(Or, to start at the other end, what is motion.spindle-speed-out connected to?)
Replied by andypugh on topic huanyang vfd & linuxcnc 2.7
now starts ok but the same problem can not set the rpm
So, what else is the signal "hy-Freq-Cmd" connected to in the HAL?
(Or, to start at the other end, what is motion.spindle-speed-out connected to?)
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01 Jun 2015 02:41 - 01 Jun 2015 02:42 #59274
by vre
Replied by vre on topic huanyang vfd & linuxcnc 2.7
is not connected anywhere.. How to connect ?
(i don't know anything about hal)
i have comment these lines from stepconf wizard
(i don't know anything about hal)
i have comment these lines from stepconf wizard
#net spindle-cmd-rpm => pwmgen.0.value
#net spindle-on <= motion.spindle-on => pwmgen.0.enable
#net spindle-pwm <= pwmgen.0.pwm
#setp pwmgen.0.pwm-freq 100.0
#setp pwmgen.0.scale 24000.0
#setp pwmgen.0.offset -2.77555756156e-17
#setp pwmgen.0.dither-pwm true
#net spindle-cmd-rpm <= motion.spindle-speed-out
#net spindle-cmd-rpm-abs <= motion.spindle-speed-out-abs
#net spindle-cmd-rps <= motion.spindle-speed-out-rps
#net spindle-cmd-rps-abs <= motion.spindle-speed-out-rps-abs
#net spindle-at-speed => motion.spindle-at-speed
#net spindle-cw <= motion.spindle-forward
#net spindle-ccw <= motion.spindle-reverse
Last edit: 01 Jun 2015 02:42 by vre.
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01 Jun 2015 02:59 #59275
by andypugh
Replied by andypugh on topic huanyang vfd & linuxcnc 2.7
Generally speaking, commenting-out lines of HAL stops things working rather than makes them work.
Can I suggest that you take the time to read the basic HAL documentation?
linuxcnc.org/docs/html/hal/basic_hal.html
Even if you were to revert to relay and voltage control, you would still need to connect those to the spindle speed control in HAL.
Can I suggest that you take the time to read the basic HAL documentation?
linuxcnc.org/docs/html/hal/basic_hal.html
Even if you were to revert to relay and voltage control, you would still need to connect those to the spindle speed control in HAL.
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