Why do stepper motor nema 34 skip steps, and how do you avoid it?

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Why do stepper motor nema 34 skip steps, and how do you avoid it?

Besides inadequate voltages and currents, resonant frequencies are the toughest issues to fix, if a stepper is skipping pulses, hence a feedback control loop is required to solve the problem.

Steppers are good enough to hold open loop position control under moderate loads and adequate acceleration curves, as long as they are not subject to lose position pulses.

The most important issue, in my understanding, is when the stepper is required to work in a certain speed that resonates with the natural frequencies of the system as a whole.

At that speed, steppers are very susceptible to lose steps, thus a position error will accumulate. Some designers would call it “forbidden operation zone”, and a special algorithm is written to avoid such zones.

Adding an encoder and closed loop feedback control will make a controller-driver a lot more robust. It will help to track any missed position and compensate for it. You'll be able to work with full torque and full speed span.

Eventually, you will be capable to work under momentary overload in your system, which is very possible to happen with CNC routers, for example.

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Thanks to a robust design they can be selected for the harshest environments. Precise, open-loop, speed and position control can be achieved with the application of full step, half step, or microstepping electronics.

Higher Resolution,Avoidance of Resonance Regions
Stepping angle is adjustable( rang in 18°±5%), 0.9 °stepper motor's stepping angle is smaller, fineness is higher and positioning is more accurate.Avoiding vibration,runs more smoothly and gets lower noise.
Sturdy structure, extremely long life
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Robust assembly, high speed range, and exceptional performance in even the harshest environments make Cloudray Stepper Motors the perfect solution for demanding positioning applications.
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Stepper motor application
Cloudray stepper motor and Stepping Motor Driver are widely used in engraving machine, cutting plotter, textile machine, 3D printer, medical devices,stage lighting equipment, robot, CNC machine, music fountain and other industrial automatic equipment.

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