Questions tagged [stepper-driver]

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Stepper Driver TMC5160 strange mosfet behaviour

So I made stepper driver PCB with the TMC5160 (datasheet) but I noticed something weird about about one of the motor outputs. Of the 4 motor outputs (A1, A2, B1 and B2) B2 always seems to have some ...
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25 views

Can a faulty motor cause issues to another motor?

This is regarding the circuit of my 3D printer mainboard. I had an obersvation: It has a cooling fan (40X10 24V) which is having issues lately - it stops working sometimes, and when pushed to rotate, ...
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33 views

What is the difference between these DVR8825 circuits? (stepper motor driver)

I use the one that is down and it works fine, but since I don't understand the difference between these circuits I decided to ask. Both circuits I found online, without explaining what is the ...
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26 views

Arduino controlled stepper motor alternate that can be powered with AA batteries?

I would like to make an automatic fish feeder using a low power microcontroller (probably an Arduino Mini Pro, unless there are better suggestions). Something like this. It is basically a drill bit ...
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2answers
35 views

Can I use LM3481 for a system where no-load status can occur?

I have made a step motor driver board with LM3478 to supply 24v from 12v input. LM3478 The problem is that a user can power the board without the stepper connected board which drive the board to no-...
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33 views

Missing steps while rotating stepper motor with gear 20:1 and driver tmc5160

as per the title I'm using Nema23 stepper motor and 20:1 gear and tmc5126 stepper driver. 1) I'm providing 3amp of current to motor and 4096 of microstepping. 2) Motor was working on same ...
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1answer
84 views

ATX PSU turns itself off when uploading sketch to Arduino

I'm trying to power a stepper motor with the 5V rail of an ATX PSU and control it using arduino. To keep the PSU running, I have shorted the PS_ON pin to ground. ...
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2answers
74 views

Stepper: Distribution of Microsteps within a full step

I am currently working on a project to precisely move a XY-table using stepper motors in microstepping mode. The goal is to reach 1/16 microstepping and there is an encoder with 4000 pulses per ...
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1answer
48 views

Tap into stepper motor signal

I was wondering if it is possible to tap into the signal either on the low power side (between motion controller and the stepper motor driver) or on the high power side (between the stepper motor ...
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261 views

How to calculate RMS current from the rated current? Are they the same in a stepper motor?

I want to use the TMC2130 driver with the stepper motor I show below. This driver has these main features amongst others: Integrated power MOSFETs handle motor currents up to 1.2A RMS (QFN package) / ...
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50 views

Stepper motor driver datasheet needed - Allegro Micro A6614SED-02A

I did a teardown of an HP PSC 2210 printer and scanner hoping to find a stepper motor driver (along with some other good stuff) but instead I found highly specialized parts, with little to no ...
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1answer
34 views

How to handle low voltage stepper motors?

So I've been looking at various NEMA-17 stepper motors, and I noticed that a most have an extremely low voltage. For example, on this page, there are NEMA-17 motors ranging from 2.8V to 5.4V, with ...
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42 views

Will the Stepper Motor 17HS3401 work fine with the TMC2130 driver? Or is the driver chip going to burn? Are they compatible?

I am considering whether to buy the stepper motor 17HS3401 of this catalog Current The motor uses a rated current of 1.3A. I need to connect it to the TMC2130 driver, which accepts just 1.2A with ...
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1answer
75 views

Which stepper motor should be enough to move a water valve and for the TMC2130 driver?

I need a stepper motor and a driver to control it. But I don't know which would meet my needs. I have an Arduino MEGA 2560 if that's relevant. Aim I need to close and open a Nupro valve with ...
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30 views

Uneven microstepping movement

I'm trying to control a stepper motor with an Allegro A4988 driver with microstepping. When advancing a few steps with no load, I can see that at full-step mode all steps have equal angle, but in ...
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1answer
66 views

Stepper Motor wiring confusion

I have got a 6 wire stepper motor. It's a chinese one (OKI KFL42LL) with Black, Brown, Orange, Yellow, White and Grey wire on it. Its specs are 8.7ohm and 7.5 degrees/step. I went through a lot of ...
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130 views

Controlling multiple stepper motors using a single driver

I want to control ~50 stepper motors using a single driver, and use only one Arduino pin to control each motor. Currently I'm using a single A4988 driver and a couple of 12v 1amp stepper motors to ...
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83 views

Why one stepper motor is twice faster?

I am using some stepper motors and I realized they are much slower than the stepper motors of OpenBuilds (http://youtu.be/GrjqW2MDCvM?t=3744). They're using less teeth on pulley too. Power supply ...
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87 views

Why stepper motor is slow with A4988 driver?

I'm using NEMA17 17HS13-0404S1 stepper motors with Arduino CNC Shield & A4988 drivers but I think they're much slower than they should be. Hard to explain how slow they are but compared to Ender 3 ...
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34 views

Stepper motor and driver selection

I would appreciate some advice on selecting a proper stepper motor and driver for my project. I plan to create an autopilot for my small fishing boat using a Raspberry Pi controlling a stepper motor, ...
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2answers
265 views

L298N heating up when driving a Nema 17 with Arduino

I've just bought a Nema 17 (Motor NEMA 17 40mm 1,2A 2,6kg/cm 1,8º 42STH40 1204A CNC) to build a pet feeder, and to control it I'm using a L298N driver I've also bought. I've wired everything together ...
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1answer
39 views

Delay between steps, given speed in mm/min [stepper motor]

I'm building a device that have to move in orders of thousandths of mm per minute. I've got suitable stepper motor and driver, it is working correctly but I'm unable to figure out the formula needed ...
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113 views

Stepper motor vibrates, without turning

I'm trying to get a stepper motor to work, but having issues. I've done a lot of debugging, but still can't figure out what's wrong. When I try to turn it around, it just makes a buzzing sound, and ...
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1answer
51 views

Capacitor to discharge upon switch open

Update Please evaluate this third attempt: This is my first electrical project, so please be gentle with me. I know very little about electronics. I'm building a machine that has a crank that users ...
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54 views

Stepper motor, why so many wires (10)?

I recently bought a stepper motor secondhand and out of curiosity opened up the back cover to see how the wires were connected, currently it looks like 3 phases are connected (4 wires, 3 phase wires, ...
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1answer
72 views

UL certification requirements

I'm designing a circuit board for a large industrial product which is intended to be UL certified, so the boss wants as many individual submodules to be UL certified as possible, including mine. The ...
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1answer
88 views

Two Different Charge Pump Circuit Variants. What Are Their Advantages?

While looking at the L6470 stepper driver datasheet I came across the following charge pump circuit suggestion (I will just name it Variant A). The charge pump is used to provide the "Bootstrap ...
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1answer
145 views

What is pros&cons of using a unipolar stepper as bipolar?

I know that it is possible to drive a unipolar stepper motor as if it is bipolar. Clearly, for example, we can ignore center tap wires of a 6-wire unipolar stepper and drive it using a bipolar stepper ...
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24 views

Using l6506 with digital pot to vary force output of stepper

I want to precisely control the amount of force being applied to a component - my plan is to drive my stepper linear actuator with the absolute minimum current to make it move, until it stalls out ...
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36 views

Stepper motor in high RF environment

I'm building a sort of "screwdriver antenna". In my case I have a motorized roller inductor. This motor is placed near the bottom of the coil (the coil is placed near the center of the vertical ...
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123 views

A4988 current limit formula: Where does the constant “8” comes from?

I am trying to calculate the VREF for my A4988 and while my A4988 is not from pololu I am using their formula over at https://www.pololu.com/product/1182 to calc the current limit. The formula used (...
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1answer
55 views

Why are stepper motors sometimes rated in AC voltage?

Now, I think I get why steppers are rated at (for example) 48VDC - as I beleive it's to overcome any back-EMF, and that's why stepper controllers are typically constant(/max) current devices - they'll ...
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1answer
154 views

Is A4988 and DRV8825 Current Limit Setting RMS or Peak?

I'm trying to aggregate information on config settings and current limit calculations for all the popular "StepStick" style motor drivers. However, I've noticed that while the older type (A4988 & ...
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49 views

Calculate inductance for ESD protection

I am trying to use TMC2130 for drive a stepper motor that has attached with plastic pulleys assembly. According to data sheet I have to concider about ESD protection due to plastic rotating assembly. (...
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1answer
82 views

Does supply voltage affects stepper motor driver heat dissipation?

Below is a block diagram of a stepper motor controller with an external mosfet h-bridge that drives one of the stepper's coils. Let's say that the coil has 2ohm DC resistance and 3mh inductance, the ...
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69 views

why stepper motor lose magnetism?

I have very old desktop style 3 axis cnc machine. There were 2 dc motors for X-Y axis and a unipolar stepper for Z axis. I replaced the old DC motors with unipolar steppers. I personally made the ...
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1answer
210 views

Should ferrite beads be closer to the stepper motor or to the motor driver?

Stepper motor, cable with ferrite bead, and dual H-bridge driver: I noticed that the cable that came with these motors had the bead closer to one end. Does it matter which way it's wired as far as ...
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335 views

Nema17/A4988 + LED display pump, 5v circuit not complete?

I'm trying to build a pump from Instructables, with no experience at all. I appear to be pretty close but the 5V line from the Arduino does not power the driver or LCD screen via my perfboard, it ...
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1answer
52 views

Driving NEMA17 Stepper motor using leadshine driver

I'm trying to drive a NEMA17 stepper motor using LEADSHINE driver. At the beginning of rotation Motor turns few steps in opposite direction and then turns toward the given direction. Why this is ...
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1answer
392 views

Controlling DC Motor with stepper driver

I only have a stepper motor driver TB6600 available at the moment, can I use it for control of a a brushed dc motor? I think it should work as I could use PWM. I also want to be able to reverse ...
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1answer
81 views

Two identical stepper motors behaving differently at higher (but below their rated) speeds

Note: My question might be short on specifics here when it comes to the motor-parameters, but I have been trying to understand a situation for the last 2~3 Weeks, and I still don't have an ...
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1answer
593 views

Why is low inductance important for stepper motors? [closed]

I’m building a CNC style device and am in the process of choosing the right stepper motors. I read that it’s important to buy steppers with maximally 5mH of inductance. Why exactly is that the case? ...
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3answers
93 views

Driving stepper motor with H-Bridge, how many Volts?

I know that stepper motors are usually driven with current-limiting chopper drivers and hence the applied voltage doesn't really matter (or does it?) and that's why specs of stepper motors don't state ...
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2answers
123 views

Arduino Laser Engraver cd drive - what do i connect where?

I am a beginner in the world of circuit boards and electronics, and this is my first real project. I am making a DIY laser engraver, following the instructions in this instructable. Here is the ...
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2answers
47 views

Voltage drop after writing to slave register with I2C protocol

I'm trying to control this bipolar stepper motor with an Adafruit Huzzah32 (ESP32) board and a stepper driver shield. Power sources: ESP32: 5V USB port Shield: 4 AA-batteries in series I ...
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1answer
51 views

Pulse train profile generator for stepper drive step/dir input

All, I am trying to create a circuit to control a stepper drive step/dir input. I'd like to generate pulses starting at 1kHz and ramp up to a 10kHz peak, then decelerate to 1kHz until motion is ...
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1answer
307 views

Can a stepper motor flyback diode discharge a coil when connected in serial to the coil and opposite to the current?

On a circuit taken from this page http://www.opend.co.za/tutorials/steptut1.htm The last circuit shows two diodes positioned in reverse polarity to the current. It is supposed to protect against the ...
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262 views

How can I use an L298N driver with a 3.3v stepper motor?

so I'm starting to delve into stepper motors with arduino for a project I'm working on, which is proving interesting so far, with me first getting a motor far too small, and then also finding out that ...
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2answers
279 views

Why are stepper motor phase currents a sinusoildal waveform?

I don't know if this is a really dumb question or not, but I've seen all kinds of torque, peak-current and RMS discussions related to current drive output for stepper motors. I acknowledge that for a ...
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2answers
235 views

Why isn't fast decay mode on an h bridge damaging

I'm struggling to understand how fast decay mode works on an h-bridge used for stepper motors . Particularly I've been looking at fast decay mode in this data sheet: http://www.ti.com/lit/an/slva321/...