Published 5 Apr 2018

Reusing Stepper Motors

\\ Over the years I have collected many useful looking stepper motors, now it is time to start using them! ^Common stepper motor configurations have 4, 5 or 6 wires corresponding to phases wired as follows:||| |{{:electronic:stepper:bipolar4.jpg|Bipolar stepper motor wiring}}|{{:electronic:stepper:unipolar5.jpg|Unipolar stepper motor wiring}}|{{:electronic:stepper:unipolar6.jpg|Unipolar stepper motor wiring}}| |4 wire bipolar stepper motor|5 wire unipolar stepper motor
(unipolar drive only)|6 wire unipolar stepper motor
(drive as bipolar by ignoring centre tap)| ^Less common stepper motor configurations have 8 or 9 wires corresponding to phases wired as follows:||| |{{:electronic:stepper:bipolar8.jpg|Bipolar stepper motor wiring}}|{{:electronic:stepper:unipolar9.jpg|Unipolar stepper motor wiring}}| |8 wire bipolar stepper motor|9 wire unipolar stepper motor
(unipolar drive only)| ===== Recovered stepper motors ===== On the [[:electronic:actuator:stepper:sidebar]] there is a list of stepper motors that I have recovered from various pieces of scrap equipment and the linked pages include basic motor specifications and connection details. ====== References and Additional Resources ====== * [[https://cdn-learn.adafruit.com/downloads/pdf/all-about-stepper-motors.pdf|All About Stepper Motors]], adafruit guide. * [[http://www.instructables.com/id/Convert-a-Unipolar-Stepper-Motor-to-Bipolar/|Convert unipolar stepper to bipolar]], also hints on determining phase wiring. * [[http://homepage.divms.uiowa.edu/~jones/step/|Control of Stepping Motors]] * [[https://web.archive.org/web/20110608004736/http://www.doc.ic.ac.uk/~ih/doc/stepper/|Stepper Motors (info on a number of steppers from old FDDs)]] * [[https://web.archive.org/web/20001018202053/http://www.ericsson.se/microe/apn_ind.html|Ericsson Stepper Motor Application Notes]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/intro_pa.pdf|Stepper motor basics]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/accuracy.pdf|Stepper accuracy and resolution]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/choosing.pdf|Choosing a stepper motor]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/How-to-Read-Stepper-Specs-Vexta_1p.pdf|How to Read Stepper Specs]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/motor_he.pdf|Motor heating and power supply voltage]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/motor_po.pdf|Motor power basics]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/mid_band.pdf|Mid band instability]] * [[https://web.archive.org/web/20200122213001/http://casa.co.nz/Motors/Stepper/Oriental-Motor-TechRef_49p.pdf|Stepping Motor's Principle of Operation]] If any referenced page no longer exists, try looking for its URL on http://archive.org. \\ ----
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