Messages

1

PoKeys / Re: Pokeys and a Thermistor

« on: February 25, 2015, 07:22:55 AM »

Now i have use poblocks for my problem.
i can reduce my dro to two.
The celsius DRO and the calculated resistor DRO.The Value that me show are a little bit more Stable.Now its only 0.5 celsius.
Now i have a problem in poblocks to use this formula: 1/298.15+1/4267*Ln(A/100000)
Is it Possible to make this formula in Poblocks?
I can give only full numbers at poblocks not 298.15.And when i try this with 29815 then the output shows me only in front of the point not after the point.
Give it the possible to give complex formula to poblocks? like the brain formula in mach3.

2

PoKeys / Pokeys and a Thermistor

« on: February 24, 2015, 05:10:25 PM »

Hi
For my 3D Printer project i try to connect a 100k ohm thermistor to the analog input and have some problems with it.
My schematics is:
(+) ------100KohmThermistor-- |
                                          |
(-) -------4,7KohmResistor--------|-------- Analog input Pokeys

Now i have add 4 DRO to my mach3 set:
1.The corrected value from pokeys analg input
2.The volt input that calculated from the first dro (A/1023*3.3)
3.The resistant that calculated from the second dro (4700*3,3/A-4700)
4.The Celsius value the calculated from the third dro (1/298.15+1/4267*Ln(A/100000) )
When i use this so he shows me the celsius value but it jumps between 1-1/12 celsius How can i stable it?
when i turn on my motorcontroller for my stepdrives then it jumps between 10 celsius.What must i shield to avoid this problem?
And for a finer resolution i need the three places behind the point.mach3 shows only in front of the point.Is it possible to show the corrected value with 3 places behind the point in mach3?

Or give it another solution for read temperatur from 50-300 celsius and map it to a mach3 dro? Maybe about Poblocks?
I would be happy about an idea for this problem.

Matthias

3

PoKeys / Re: Pokeys and a vfd

« on: December 19, 2013, 06:47:52 PM »

ok then I build me as a part.

When i read the features of the huanyang VFD Plugin there is it possible to read the real RPM and show this on the dro in mach3
Is it possible with the pokeys to read the real RPM from the VFD?
The VFD has a output terminal of digital frequency 0-10V but i dont know how to connect this to the pokeys and i dont know if its the right.

4

PoKeys / Re: Pokeys and a vfd

« on: December 19, 2013, 06:11:24 AM »

Ok Without any External Components i dont come on.

I have found a drawing of a 3,3V pwm to 0-10V digital can i use this?

5

PoKeys / Re: Pokeys and a vfd

« on: December 18, 2013, 07:17:22 PM »

The vfd have two analog inputs.

1.Analog Voltage Freqency reference Input
2.Analog Current Frequency Reference Input
The vfd accepts 5 or 10 volts  or 0-20ma or 4-20ma
The pokeys analog output is at 3,3V

When i connect to the volt input do i need a pwm to voltage converter?
Can i use the 0-20mA Current Frequency Reference input directly from pokeys?
or do I need in each case external components?

6

PoKeys / Re: Pokeys and a vfd

« on: December 18, 2013, 05:18:42 AM »

Its a huanyang HY02D223B
It has a RS 485 2 wire connection and a Multi Input Terminal

On the Multi input i can connect the pokeys to Start,stop,reset and 3 predefined speeds.
I have read about a rs 485 to usb converter with this and a plugin i can control the spindle with all the features.
And my question is how can i connect the pokeys to the vfd to controll the spindle with the rpm too?
Is this Possible?

7

PoKeys / Pokeys and a vfd

« on: December 09, 2013, 05:16:06 PM »

Hello
I´m need a little help with my pokeys and a vfd.
When i want to use the pwm output from my pokeys to the vfd do i need a pwm to voltage converter?
Or give it another solution for connecting this?
And when i want use the output of digital frequency from my vfd to display the right values What do i need for this feature?


MFG
matthias

8

General Mach Discussion / Re: reference Script

« on: April 28, 2013, 07:36:03 PM »

Yes your are right.
Its an error with the pokeys plugin.
I have now connect my stepdriver to the lpt port to see how it should run normally.And when i use LPT port as controller and the pokeys as IO board all works very well.
and i must not write a script because mach3 makes all.
Also the softlimit function runs fine.with pokeys plugin not.

thanks for the food for thought

9

General Mach Discussion / Re: reference Script

« on: April 24, 2013, 08:00:05 AM »

When i replace the script part with yours:
 dobutton(22)
 While isMoving() And (X < 100)
   X = X + 1
   sleep 100
 Wend
 code "g0 x10"
Then the script do a x ref then hangs 10 seconds then release the hang.
But it dont execute the following command and it dont hang.
I know its not a fix for my problem.
But it release mach3 without push stop button
I have seen written an email to the developer times whether there is a solution for.
Maybe give an another solution for this problem?

10

General Mach Discussion / Re: reference Script

« on: April 24, 2013, 06:02:18 AM »

7Always the same.
And always with the homing function.All other makro's run fine.
i'm not able to move the axes to a point after reference with a script.mach3 stop always after execute dobutton(22), dooembutton(1022) or a g28 command and wait that i push the stop button that he can execute the rest of the script.