Revision as of 18:46, 26 April 2019

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Model - 17PM-K402V

6.00V 0.80A/phse 7.50 Ohms 3,400 g cm torque 7.0 mH 75.0 rotor inertia (g-cm^2) 200 detent torque 350 g

At 6V, the stepper will have V=IR=6=I*7.5 - so I=0.8A per phase. Period. Power is IV = 0.8*6V=4.8W. Per phase. Period.
Note power is double: there are 2 phases. So 9.6Watts.
Note power is not determined by provided voltage - such can be 24V or significantly higher than rated voltage. The Power formula refers to the voltage that is actually used, not that which is provided. Provided and used voltage are different with stepper motors.
By limiting current, we can alsoreduce power use.

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 *At 6V, the stepper will have V=IR=6=I*7.5 - so I=0.8A per phase. Period. Power is IV = 0.8*6V=4.8W. Per phase. Period.
 *Note power is double: there are 2 phases. So 9.6Watts.
-*Note power is not determined by provided voltage - such can be 24V or significantly higher than rated voltage. The Power formula refers to the voltage that is actually used.
+*Note power is not determined by provided voltage - such can be 24V or significantly higher than rated voltage. The Power formula refers to the voltage that is actually used, not that which is provided. Provided and used voltage are different with stepper motors.
 *By limiting current, we can alsoreduce power use.
 =Sourcing=
 *Ebay - [https://www.ebay.com/itm/Lot-Stepper-motor-NEMA-17-76-oz-in-CNC-MILL-ROBOT-REPRAP-3d-Printer-GT2-Pulley/112553267528?hash=item1a34b29148%3Am%3Am_qL-g06YkL4fO1U_1oYHgQ%3Asc%3AUSPSPriorityFlatRateEnvelope%2164469%21US%21-1&var=412949912437]