VFD mb2hal
22 Mar 2018 13:29 - 22 Mar 2018 13:33 #107718
by BigDo
Replied by BigDo on topic VFD mb2hal
thanks for quick answer
the pin mb2hal.set.cmd.parameters.oo are float type
Owner = 18
Type = float
Dir = IN
and if i want to use Hex how can i do that? A example would be nice
the pin mb2hal.set.cmd.parameters.oo are float type
Owner = 18
Type = float
Dir = IN
and if i want to use Hex how can i do that? A example would be nice
Last edit: 22 Mar 2018 13:33 by BigDo.
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22 Mar 2018 13:34 #107719
by andypugh
Replied by andypugh on topic VFD mb2hal
In that case you can use a conventional mux4, or change the mux_generic to config="uf4".
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22 Mar 2018 13:43 #107720
by andypugh
Replied by andypugh on topic VFD mb2hal
To enter numeric constants in hex, just put them in the HAL file as 0x800A (for example)
HAL interprets any constant beginning with 0x as hex.
Or, at least, I think it does. I can't immediately find any reference to this in the documentation.
It is also likely that integers beginning with "0" will be interpreted as octal. Which I can imagine might occasionally be unexpected.
HAL interprets any constant beginning with 0x as hex.
Or, at least, I think it does. I can't immediately find any reference to this in the documentation.
It is also likely that integers beginning with "0" will be interpreted as octal. Which I can imagine might occasionally be unexpected.
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- Todd Zuercher
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22 Mar 2018 14:33 - 22 Mar 2018 14:38 #107723
by Todd Zuercher
Replied by Todd Zuercher on topic VFD mb2hal
There are multiple ways to do this, Andy showed you one way.
In the machine config I posted I used Classicladder to convert the control bits to the numbers needed to write to the modbus registers.
I think I would do it using a Weighted_sum component.
Then make the connections in hal, something like this. The weighted sum component lets you toggle the individual bits of the 16-bit register number.
In the machine config I posted I used Classicladder to convert the control bits to the numbers needed to write to the modbus registers.
I think I would do it using a Weighted_sum component.
Then make the connections in hal, something like this. The weighted sum component lets you toggle the individual bits of the 16-bit register number.
loadrt weighted_sum wsum_sizes=16
loadrt not
addf process_wsums servo-thread
addf not.0 servo-thread
setp wsum.0.bit.1.in 1
setp wsum.0.bit.3.in 1
setp wsum.0.bit.15.in 1
net spin-rev <= motion.spindle−reverse => wsum.0.bit.11.in
net spin-fwd <= motion.spindle−forward
net spin-stop <= not.0.out => wsum.0.bit.12.in
net spin-on <= motion.spindle−on => not.0.in
net vfd-cmd <= wsum.0.sum => mb2hal.set.cmd.parameters.00
net set-freq <= motion.spindle−speed−out−rps−abs => mb2hal.set.reference.frq.00
Last edit: 22 Mar 2018 14:38 by Todd Zuercher. Reason: there was an "o" where a "0" should be in one of the hal lines.
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22 Mar 2018 14:47 #107724
by Todd Zuercher
Replied by Todd Zuercher on topic VFD mb2hal
Connecting your pyvcp controls to Linuxcnc is also done in your hal file(s) and is covered in the manuals, and there are examples in the example configs included with Linuxcnc.
linuxcnc.org/docs/2.7/html/gui/pyvcp.html
linuxcnc.org/docs/2.7/html/gui/pyvcp-exa...tml#_the_connections
linuxcnc.org/docs/2.7/html/gui/pyvcp.html
linuxcnc.org/docs/2.7/html/gui/pyvcp-exa...tml#_the_connections
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22 Dec 2019 16:39 - 22 Dec 2019 16:56 #153043
by zajc3w
Replied by zajc3w on topic VFD mb2hal
I'm trying to connect my VFD (chinese yl620) so it will respond to M3-M5,Sxx commands.
I don't want any new GUI elements, don't even need any feedback. At the moment VFD fault relay is in Estop circuit, if VFD trips it stops motion preventing cutter breakage.
I have written YL620.ini to write and read relevant registers
But I'm at loss with what next.
edit custom.hal ? how ?
how to translate M3 to writing 18 to control register and M5 to writing 1 to the same control register?
Any pointers please, I know it's all in WIKI, but it's sooo huge.
I don't want any new GUI elements, don't even need any feedback. At the moment VFD fault relay is in Estop circuit, if VFD trips it stops motion preventing cutter breakage.
I have written YL620.ini to write and read relevant registers
But I'm at loss with what next.
edit custom.hal ? how ?
how to translate M3 to writing 18 to control register and M5 to writing 1 to the same control register?
Any pointers please, I know it's all in WIKI, but it's sooo huge.
Attachments:
Last edit: 22 Dec 2019 16:56 by zajc3w.
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22 Dec 2019 19:49 #153066
by andypugh
Replied by andypugh on topic VFD mb2hal
I would start with a mux4 component to send numbers to a register based on the spindlle-fwd and spindle-rev bit outputs.
linuxcnc.org/docs/2.8/html/man/man9/mux4.9.html
You may need to convert to int from float too. (conv_float_u32 component)
linuxcnc.org/docs/2.8/html/man/man9/mux4.9.html
You may need to convert to int from float too. (conv_float_u32 component)
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22 Dec 2019 20:56 - 22 Dec 2019 20:57 #153072
by Hakan
Replied by Hakan on topic VFD mb2hal
An alternative is to do bit to float conversion in two steps like thisNot saying this is better than anything else, it is just another way.
One kind of whishes mb2hal could take a bit as input.
loadusr -Wn aasd30A mb2hal config=Turner_spindle.ini
# Start (or stop) the spindle. Comes "bit" needs "float".
loadrt conv_bit_u32
loadrt conv_u32_float
addf conv-bit-u32.0 servo-thread
addf conv-u32-float.0 servo-thread
net spindle-enable conv-bit-u32.0.in
net spindle-enable-u32 conv-bit-u32.0.out conv-u32-float.0.in
net spindle-enable-float conv-u32-float.0.out aasd30A.01.onOne kind of whishes mb2hal could take a bit as input.
Last edit: 22 Dec 2019 20:57 by Hakan.
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22 Dec 2019 21:13 #153073
by andypugh
Replied by andypugh on topic VFD mb2hal
The reason I suggested mux was that it appears that the requirement is 18 for forward and 1 for stop?
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23 Dec 2019 09:59 #153090
by zajc3w
Replied by zajc3w on topic VFD mb2hal
Thanks.
Mux4 seems more legant way to doing it, just have to figure out syntax.
I'm beginning to think that modyfiing hy_ modbus driver might be asier than trying to understand how hal ticks...
Conversion of rpm to Hz is another one.
All need is to divide rpm by 6 and convert to integer. Can I just slap division by 6 in hal?
Mux4 seems more legant way to doing it, just have to figure out syntax.
I'm beginning to think that modyfiing hy_ modbus driver might be asier than trying to understand how hal ticks...
Conversion of rpm to Hz is another one.
All need is to divide rpm by 6 and convert to integer. Can I just slap division by 6 in hal?
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