Thanks. Indeed, the quality of the machining will be directly affected by the precision and performance capabilities of the machine. Both reversing and controlled deceleration would be required in some machining instances, so 4-quadrant control appears to be mandatory. And as pointed out by...
Thanks, wired1 and cbarn24050, for your feedback. I must confess, cbarn24050, that I'm not sure about 4 quadrant control. Adding a tachogen in addition to the drive seems excessive for this application, I agree.
Strangely, the electrical aspects of this project seem more complex than I...
Hi, thanks for the reply. Though more economical, would the thyristor controller be better suited for this application than a PWM? For reversible rotation and controlled deceleration (under load with rotational momentum), would the contoller need to be regenerative?
Hello,
I'm in the process of designing a machining device that will utilize a 1/2HP DC motor (90 VDC, 1750 rpm) to rotate a machining surface. The speed of rotation will need to be accurately varied with the use of a foot pedal, in order to permit hands-free operation of the machine. However, it...
