Why do stepper motor nema 34 skip steps, and how do you avoid it?
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.
Cloudray Stepper Motor Series has set the standard for quality, reliability, and durability in stepping motors. The precision of our Torque Power motors is matched only by the dependability of their performance. All Torque Power motors are bi-directional and totally enclosed with permanently lubricated ball bearings for long-lasting, smooth operation.
High Torque, High Precision and Long life is Cloudray's core advantage
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