Thanks for your time and thanks to other aswell!!! I tried powered the drivers to the 50V instead of 36V and I the max rev. per sec grew from like 5 to 6.5 rev/s. I think i will sell those 3 motors (L=6.8mH) and buy new motors with lower inductance (L=3.8mH). What do you people think about that? Im working on my own CNC machine, thats why I need some more speed. I have ball screws right now butby burnley1 - Stepper Motors, Servo Motors, DC Motors
Yes I put a delay of 500us between logic 1 and logic 0 in at some digital output. I also tried a acceleration from 0 to something, but motor stops at some rpms...by burnley1 - Stepper Motors, Servo Motors, DC Motors
Quotethe_digital_dentist The curve shows pps- pulses per second. If you use 1/2 stepping, 400 pulses represents 1 rev. which figures to 17.5 rev/sec which is 1050 rpm where you are getting almost no torque. Sw5-8 control stepping. The one entry missing from the table is all switches on- that may give you full steps, or might fry the driver. Check the manual. I also tried the combination of Oby burnley1 - Stepper Motors, Servo Motors, DC Motors
Quotegeorge4657 If you only can go 250 RPM something is wrong. At 3000 RPM = 3000*400/60 = 20,000 steps per second which an arduino should be able to do. You can run this fast but will have no power at this speed. See torque chart. What are your current settings? What program are you using to run the stepper? Does the motor get warm/hot when running? How are you measuring the RPM? Actualy i setby burnley1 - Stepper Motors, Servo Motors, DC Motors
I have just this settings from 400 and up to 25600. So thats why I cant run it with full steps, only half steps or less... true? But I saw many tutorials and examples where folks turn this kind of stepper motors to run on high speed. The characteristic - graph torque(pulse) of this motor is in the attachement. The seller sent me that graph, they used the same driver and the same power supply anby burnley1 - Stepper Motors, Servo Motors, DC Motors
Quoteenif Which controller, which firmware, what step rate? See alse here in the wiki... The motor has 200 steps per rev, on the driver i have set the 400 pulse/rev, so i am halfstepping. I cant do full steps with this controler right? Controler is in the link: Arduino has 16MHz quartz crystal. I wanted to go faster, expected like 1500 rpms or more like 2000. Thanksby burnley1 - Stepper Motors, Servo Motors, DC Motors
Hello everyone! I have a question about RPMs of stepper motors. I have a kit from Longs motor: Nema 23 425oz motors, 350W 36V power supply and DM542A microstep driver I can get only like 240rpms with my Nema 23 425oz, If i go faster (with Arduino), the motor just stops and produces strange noises (high pitch noises, but it doesnt move) and vibrations. What to do?All the thing is with no load oby burnley1 - Stepper Motors, Servo Motors, DC Motors