PID project

[bradss]

Kkkk

[Enamul]

That's sound interesting to me. I am interested to help you. If you start with simple control and then improve that to PID and with the simple control you can have feedback. Let me introduce with your stuff more in details so that I can plan for you.

[Benj]

Hello,

We will be releasing a DSP library for Flowcode in January which includes a module for PID control.

In the mean time I think there is an article on PID control in the Articles section of our learning centre.

[bradss]

Thanks guys I will start off with some simple control and progress from there as you suggested Enamul, I will let know how I progress

[nc56]

what's the power of your motor ?

[bradss]

The motor is 0 -24 volts 16 watt. And the techo is feeding back a voltage of 5 volts at full speed

[Enamul]

Hi

Can you please post the datasheet for the motor or post the link of the datasheet so that I can have a look? I will post some starting program for you. I think you mean tech output voltage varies with speed.

[bradss]

Hi what I meant was I applied a 5 volt signal to the motor and measured the voltage I was feedback from the tachometer which was 1.7 volts.
the motor I am using is a feedback rig with tachometer attached, here are the specs I found;

DC MOTOR: VOLTAGE: 24V
NOMINAL CURRENT: 1A
TORQUE CONSTANT: 0.06 Nm/A
GENERATED POWER: 16 W
MAX SPEED: 3000 RPM
TACHO METER: RANGE : 0-2000 RPM
TORGUE: 50 gr.cm
VOLTAGE SUPPLY: INPUT: 220VAC,50Hz
OUTPUT DC: +15V,-15V
+24 VOLTS TO MOTOR

[Enamul]

Hi
I am confused by your data...

DC MOTOR: VOLTAGE: 24V

That's operating voltage of the motor.

VOLTAGE SUPPLY: INPUT: 220VAC,50Hz
OUTPUT DC: +15V,-15V

What is it then?

[bradss]

Sorry I was not very clear in my last post; 220 V AC is the mains power for the feed back rig itself. The motor it self is 24 volt DC. With a nominal current of 1A and generates 16W. The rig has an input for the signal to the motor, a + and -15 volt Dc output and an output from the tachometer.

[bradss]

I will send info and pictures to your email as could not post it here.

[Enamul]

Thanks I will have a look in your email

[bradss]

thanks

[dazz]

Hi
try this link and check the example file http://www.matrixmultimedia.com/article.php?a=56
or hold fire a tiny bit as Benj replied in his post the next release should have dsp functionality

Regards
Dazz

[bradss]

tanks daz, I will check that out, mite not be able to wait due to time constraints,but do you know when it will be relased and how will i access it once it is?

[kersing]

Flowcode 5.5 has been released earlier today... See this message for details on upgrading.

[bradss]

Hi Benj,

can't seem to open your examples you posted on PID control. would it be possible for you to repost them as I cant use the new dsp as i only have access to version 4 and my project has stalled
thanks

[bradss]

Hi Guys,

would somebody be kind enough to have breeze over my code, using version 4, have the circuit built but having tuning problems, works fine without feedback so guessing the ciruits ok and possible a problem with my code which i can not find. thanks