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I am working on a robot that includes several annular gear pumps. We are using the MZR 2521,

manual: (please see section 5.5) http://www.micropump.com/support_documents/manual_mzr-xx21.pdf

product page: http://www.micropump.com/product_detail.aspx?ProductID=62

In the description they say that you can run the pump as if it were a stepper motor. This seems like it could be done perfectly with an Arduino, but I was not sure whether to treat it like a Unipolar or Bipolar stepper motor as the setup for each is quite different. Does anyone have any thoughts as to which it might be? Thanks so much.

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  • \$\begingroup\$ Judging from fig.18 on p.22, this is a 4-wire bipolar stepper motor. Neat little pumps, by the way. \$\endgroup\$ May 21, 2013 at 3:09
  • \$\begingroup\$ From reading the datasheet, it seems you have to choose which type of motor you order, and one of the options is a bipolar stepper (section 5.5). \$\endgroup\$ May 21, 2013 at 3:31
  • \$\begingroup\$ These pumps are the answer to a question I was just about to post. Thank you! \$\endgroup\$ Apr 21, 2015 at 2:44

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Copying an answer from the comment:

From reading the datasheet, it seems you have to choose which type of motor you order, and one of the options is a bipolar stepper (section 5.5). – Anindo Ghosh May 21 '13 at 3:31

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