Building a new 6DIY

this video is : control with pot 20K ( +/- 10 volt 23ma out ) to direct + REF IN ( drive), the motor sound is good and with diferent speed ! but the power supply fan makes some noze

this video is: control by Arduino 5 volt to Input Level shifter (output +/- 10 volt ) to direct + REF IN ( drive) like this:
But , the motor is very noisy !!!!!
code :
const int analogOutPin = 9; // Analog output pin
int outputValue = 127; // value output to the PWM (analog out)
int increment=1;
void setup() {
pinMode(analogOutPin, OUTPUT);
Serial.begin(9600);
}
void loop() {


// change the analog out value:
analogWrite(analogOutPin, outputValue);
// print speed
Serial.print("Speed = ");
Serial.println(outputValue-127);
// wait 100 milliseconds
delay(1); // Change value to make change in speed faster or slower
// Change speed
outputValue+=increment;
if(outputValue==170 || outputValue==88) increment=-increment;

}
Arduino 0- 5 volt direct to + REF IN , does'nt work too !! lot of vibration but …
when the Arduino and drive are still plug with level shifter ….and I bypass( level shifter) direct out put 9PMW to + Ref in drive … It working good like (40 ma) !!!.

Can I offer a clue? The arduino does not have analog output... but PWM... Get a oscilloscope...
The motor is trying to follow the HIGH-LOW positions of the pulses...

May be a solution ?

This is overkill, perhaps a simple RC filter would do same with R=10k and C=100uF

I will try this tomorow !!!

55052

ok …. ouff finaly the filter must be between the level shifter and the drive !! And the Command Sources drive must give
+ 10 and -10 volts perfect , for example,if one side is + 10v and the other -14 volts ... nothing work !!!
This video show the speed of signal PWM with filter ( sorry I don't have oscilloscope) before level shifter 0- 5 volt and after filter with ampli (normaly: 0-20 volt ) .


The right meter show : when it over 10 volt the actuator goes up and when it below 10 volt he goes down ! and the left one 0-5 volt PWM with this code :
// wait 100 milliseconds
delay(1); // Change value to make change in speed faster or slower
// Change speed
outputValue+=increment;
if(outputValue==170 || outputValue==88) increment=-increment;
Conclusion : I need amp to follow input 0-5volt like LM358 . 0Volt IN = -10Volt Out and 5 volt In = +10 volt Out or total= 20 volt
Next step is this :
http://henrysbench.capnfatz.com/hen...rduino-lm358-op-amp-pwm-to-voltage-converter/

Wow... please stay safe! Have a fire extinguisher next to you just in case.

No problem ! I’m firefighter ‍!!
Thanks for your help!! if everything burn , i will buy your
AMC1280USB Motion Simulator Controller Deluxe Kit
is sure!!!

Hello ,
I try to learn C++ code but it not easy .
I would like to do the same thing than above but with two output …. like one output goes up and others goes down !!!
Arduino output 3 ( 0-127 )for up lineaire cyl + REF and output 5 ( 128 - 255 ) for down lineaire cylinder -REF
Is it possible ?
thanks

I have better ones than the AMC1280USB now, designed for specifically for servomotor actuators...

There's no logic in doing that.
It's an advantage to use one pin for two directions
How are you going to mix them?

Either way, here's a code to make actuator move with two pins.
The pin not in use outputs 127 witch is speed=0 rpm

Code:

const int pinUp = 3;
const int pinDown = 5;
const int speed= 127;    
const int increment=1;

void setup() 
{
   pinMode(pinUp, OUTPUT);
   pinMode(pinDown, OUTPUT);
   Serial.begin(9600);
}

void loop() 
{
 // Apply the speed
 if(speed<127)
{
  analogWrite(pinUp, speed);
  analogWrite(pinDown, 127); // Make sure speed is zero in this pin
}
else
{
  analogWrite(pinUp, 127); // Make sure speed is zero in this pin
  analogWrite(pinDown, speed); 
}

 // print speed
 Serial.print("Speed1= ");
  Serial.print(speed);

 // wait 100 milliseconds
 delay(100); // Change value to make change in speed faster or slower

// Change speed
speed+=increment;
if(speed==255 || speed==0) increment=-increment;
}

Answer : I would like to do this one pin for two directions but , my last experience with the level shifter +/- 10 volt from Command Sources drive must give
+ 10 and -10 volts perfect , for example,if one side is + 10v and the other -14 volts ... nothing work !!! Each of my 6 drives gived+ 10 and -10 volts perfect and after the test with PWM and level shifter , one side have change to +10v for +14 volt ..May be a Bad luck Idon't know but if I repeat the experience I'm afraid to blow another drive ..( she work again but not for this way ) .​

Finaly I take another chance with one output
with your first code is like this !!
Yellow multi :0-5volt PWM
Gray multi :after level shifter and filter +/- 10 volt ( over 0 volt goes up / below 0 volt goes down) actuator .
Black multi : the one who must stay at 20 v and no more (Command Sources drive must give + 10 and -10 volts perfect) . You can see with the multi gray that he pass more time in negatif than positif time ! and slower than yellow one too!
I try to put the code more faster but i'm not eable . I changed the delay for 1 ( this video) but it's still not enough short ! but working and stable with less noise .

this video is with delay: 100

​

OK, I took a better look at the controller.
Maybe you could try this:


With this code:

Code:

const int pinUp = 3;
const int pinDown = 5;
int speedx = 0;
int directionx = 1;
int increment=1; // Increase to make speed change faster

void setup()
{
   pinMode(pinUp, OUTPUT);
   pinMode(pinDown, OUTPUT);
   Serial.begin(9600);
}

void loop()
{
  // Apply the speed
  if(directionx==1)
  {
    analogWrite(pinDown, 0);
    analogWrite(pinUp, speedx);
  }
  else
  {
    analogWrite(pinUp, 0);
    analogWrite(pinDown, speedx);
  }
 
  // print info
  Serial.print("Speed= ");
  Serial.print(speedx);
  Serial.print("    Direction= ");
  Serial.println(directionx);
 
 
  delay(20); // Change value to make change in speed and direction faster or slower
 
  // Change speed
  speedx+=increment;
  if(speedx>=255)
  {
    speedx=255;
    increment=-increment;
  }
  if (speedx <=0)
  {
    speedx=0;
    increment=-increment;
    directionx=-directionx; // Change direction when speed is zero
  }
}

code erreur ( variable speed )
Thanks a lot for your help and time , I really appreciate!


It will be like this ! more simply and it is not necessary to have -10 volts from driver to control input - REF IN

Sorry, copied the const int... it should be just int in the definition.
Code corrected, copy again please.
speed, increment and direction should not be constants.

OK, I tried to compile it and...
speed and direction are keywords of the language, so I added an x on the variables names.
Please copy all the code and try again. Really sorry.

ok ,It's better but the delay as changed to 20 for 1 and is still too long for spacing travel that i Have !

It works?
You can adjust the delay for the size of your actuator, but without limits you risk to damage the actuator or burn the controller.
You need to get some feedback for position and also the limits.

Yes it work ! thanks
but the delay haved change 20 to 1 and still too long !
A chance that I have limit switch , the actuator goes every time there and i'm still waiting of this product again ( the compagny are very slow ) !! https://lsicsi.com/#/products/Development-Kits/LS7366RSh , for feedback position and also limits !

Send me your adress and I will ship this gift for your support !
It's clean and snap right there with space for some wire !!