huanyang vfd won't communicate get errors.

andypugh
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21 Mar 2017 20:08 #90029 by andypugh

Replied by andypugh on topic huanyang vfd won't communicate get errors.

jcloase wrote:
Gold Border,
Tried getting rid of -p did not use stop bits. When parity is removed it appears that hy_vfd defaults to even parity. I tried all three combinations the same result. The data that hy_vfd is sending over and over appears to be
0x01 0x01 0x0B 0x2c 0x30 or decimal 01 01 13 44 48. Thanks

Is that what you see with the -g (debug) option turned on in the driver?

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jcloase
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22 Mar 2017 02:18 #90044 by jcloase

Replied by jcloase on topic huanyang vfd won't communicate get errors.

That is what I see monitoring the RS485 with a third pc. It is what hy_vfd is sending over and over about one a second..

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andypugh
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22 Mar 2017 09:17 #90050 by andypugh

Replied by andypugh on topic huanyang vfd won't communicate get errors.

So, is there any output from hy_vfd with debugging turned on?

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jcloase
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22 Mar 2017 12:03 #90062 by jcloase

Replied by jcloase on topic huanyang vfd won't communicate get errors.

Andy,
Can you explain how to turn on debugging.

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jcloase
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22 Mar 2017 12:45 #90067 by jcloase

Replied by jcloase on topic huanyang vfd won't communicate get errors.

Gentlemen,
I am pretty sure I have figured out what is wrong. I found a thread about missing RS485 chips on MACH support. I checked and I have no chip in my vfd. I ordered some and will let you all know after I install it.
Thanks for all your efforts

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andypugh
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22 Mar 2017 14:45 #90072 by andypugh

Replied by andypugh on topic huanyang vfd won't communicate get errors.

jcloase wrote:
Andy,
Can you explain how to turn on debugging.

Use the -g switch in the loadusr line, as described in the manual page.
linuxcnc.org/docs/2.7/html/man/man1/hy_vfd.1.html

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jcloase
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22 Mar 2017 17:20 #90081 by jcloase

Replied by jcloase on topic huanyang vfd won't communicate get errors.

Thanks!

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jcloase
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25 Mar 2017 15:11 #90250 by jcloase

Replied by jcloase on topic huanyang vfd won't communicate get errors.

Put the RS485 IC in the vfd and still no comms. I've beat this dead horse long enough I give up.

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andypugh
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25 Mar 2017 16:28 #90251 by andypugh

Replied by andypugh on topic huanyang vfd won't communicate get errors.

eBay has many adverts saying that they sell genuine HY VFDs and to beware of fakes.

www.ebay.co.uk/itm/110V-VARIABLE-FREQUEN...4:g:mTMAAOSwd0BVxE~g

Shows the differences. Which is yours?

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jcloase
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25 Mar 2017 20:27 #90259 by jcloase

Replied by jcloase on topic huanyang vfd won't communicate get errors.

It's the real thing. I have had it form 6 or 7 years and there was no RS485 IC in it.. I don't know if the software to work with it is in this one. Maybe I'lll buy and new one. I can see hy_vfd putting data out but the vfd just doesn't answer.

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