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Sanyo pancake stepper motors with encoders

Posted by Ryan on 12 May 2017

We are now offering two new NEMA 17-size pancake bipolar stepper motors from Sanyo, each featuring an integrated high-resolution quadrature encoder and home channel for absolute positioning.

Stepper motor	Steps per revolution	Current rating (per coil)	Voltage rating	Resistance (per coil)	Holding torque
#2279 42×31.5mm	200	1 A	5.4 V	5.4 Ω	1.9 kg-cm (26 oz-in)
#2278 42×24.5mm	200	1 A	3.5 V	3.5 Ω	800 g-cm (12 oz-in)

Side view of the SS2422-50XE100 42×31.5mm Sanyo pancake stepper motor.

Side view of the SS2421-50XE100 42×24.5mm Sanyo pancake stepper motor.

The integrated quadrature encoder operates from 5 V and has a resolution of 1000 P/R, which allows for 4000 counts per revolution (CPR) of the output shaft when counting both edges (i.e. rising and falling) of both channels (i.e. A and B). In addition to the A and B channel outputs, the encoder has a home channel, Z, that pulses once per revolution and can be used for absolute positioning. The encoder also has outputs for the inverse of A, B, and Z. A 15 cm (6″) encoder cable is included.

Related products

	Sanyo Pancake Stepper Motor with Encoder: Bipolar, 200 Steps/Rev, 42×24.5mm, 3.5V, 1 A/Phase, 4000 CPR
	Sanyo Pancake Stepper Motor with Encoder: Bipolar, 200 Steps/Rev, 42×31.5mm, 5.4V, 1 A/Phase, 4000 CPR

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4 comments

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Jim A.

4 Jun 2020

Does this mean I can reliably position this stepper to 360 degrees / 4000 counts per rev ? Or 0.09 degrees.

Patrick

4 Jun 2020

Hello, Jim.

The encoders allows you to measure the stepper motor's output up to a resolution of 4000 CPR, or 0.09 degrees. Actually moving your stepper motor to such precise positions would require you to apply sufficient microstepping properly, with at least a 1/32 microstepping ratio.

- Patrick