Hi everyone, I hope my message finds you well. I bought a stepper motor model: st-pm35-15-11c recently and I wanted to run it using a L298N stepper driver. The rated voltage for the motor is 12 V as it is written on the motor. When I set the voltage input to the driver to 12 V, the motor does not t…

The L298 is ancient and very inefficient bi-polar technology. It will drop 2V to over 4V and dissipate that power as heat. They are, by today's standards, poor DC motor drivers and even worse stepper drivers. [image] MasoudHasany: "This is due to the fact that stepper motors run better and fa…

[image] MasoudHasany: What is the problem? Links to datasheet of the stepper. L298N is not a genuine stepper driver. It's a dinosaur DC motor driver. [image] MasoudHasany: I read somewhere that the inpit voltage should be always more than the rated voltage, In what gutter journal did…

[image] Railroader: Links to datasheet of the stepper. Thank you. Here is the link to its datasheet ST-PM35-15-11C.pdf 331.88 KB [image] Railroader: L298N is not a genuine stepper driver. It's a dinosaur DC motor driver. What do you suggest ins…

[image] MasoudHasany: Here is the link to its datasheet Thanks! The datasheet confirm my suspicions, and the reply from @groundFungus . Put away the L298 and get a driver controlling the current to the stepper. 12 volt into the 4 ohm coils spells 3 amps, more than dangerously above the 400 mA…

[image] MasoudHasany: This is due to the fact that stepper motors run better and far more efficiently when the voltage is several times higher than their rated voltage. Yes but You must use a driver with controlled current. The L298 doesn't do that. It just let all current through, and will o…

Thanks to both of you. I understood well. I searched and repeated the things I saw on Youtube and every website. and nobody told a single thing about current and voltage and how we should manage it. Thank you again

Stepper motors and their drivers

Other Hardware Motors, Mechanics, Power and CNC

groundFungus August 19, 2022, 10:51pm 7

Some reading for the OP:

Stepper motor basics tutorial.

Simple stepper test code.

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Stepper motors and their drivers

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