SMALL, PRECISE, SMART … IN MOTION

M3-RS-U2-4.5-360

Rotatingshaft

Rotary Smart Stage

Miniature piezoelectric positioning module withembedded controller
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Smallest rotary stage: 11.75 x 21.9 x 16 mm
Embedded closed-loop controller- No separate electronics needed- 3.3 VDC input- Accepts direct motion commands(I2C, SPI, UART or analog servo)
Continuous 360° rotary motion
Angular resolution ~21.9727 mdeg closed loop
Built-in absolute position sensor
Millisecond step and settle times
0.5 deg in 16 ms closed loop
0.5 deg in 1.2 ms open loop
Holds position with zero power and no jitter

Smallest size, high resolution
The M3-RS-U2-4.5-360 Rotary Smart Stage is a miniature, “all-inone” rotary positioning stage with closed-loop position resolution
better than 0.022 degrees. It provides continuous 360° rotation withabsolute position feedback.
The compact housing measures only 11.75 mm long x 21.9 mm
wide x 16 mm tall and incorporates a built-in controller with all drive
electronics and embedded firmware, along with patented
piezoelectric motors, position sensors and bearings.

Closed-loopcontroller
inside!
Input 3.3VDC andhigh-level motion commands
The M3-RS-U2 Rotary Smart Stage isan ultra-compact positioning module withembedded closed-loop control. This smart
stage accepts direct input of simple motioncommands via I2C, SPI, UART or analog
servo interface.

APPLICATIONS
Scientific and industrial instruments
requiring precise rotational positioning ina limited space.
 Point-to-point beam steering Optical tuning (with gratings or filters) Sample alignment
 Hand-held and battery-powered devices

With no need for an external controller, this smart stage enables
smallest system size in hand-held and portable instruments.

Embedded controller for fastest integration
The embedded controller also means rapid and easy integration
into your system. It accepts direct input of high-level digital motioncommands from your system processor over UART, SPI, I2C oranalog servo interface.
Developer’s kits include a USB adapter for PC control, and New
Scale Pathway™ software for evaluation and system development.

Low power use for battery-powered systems
The positioning module needs only 3.3 V DC and usesapproximately 750 mW when moving. It can be powered by USB orstandard batteries. The integrated piezo motor holds position
without using power.
New Scale Technologies, Inc. ~ w w w . n e w s c a l e t e c h . c o m ~ Phone (585) 924-4450

M3-RS-U2 Rotary Smart Stage withmirror mounted on rotating shaft for pointto-point beam steering. (Mirror and mountnot included.)M3-RS-U2 Rotary Smart Stage
M3-RS-U2-4.5-360

Specifications
M3-RS-U2-4.5-360 Rotary Smart Stage
Rotation Range

360 deg continuous rotation

Speed> 1100 deg/sec

Acceleration> 1,000,000 deg/sec2 *Stall Torque (minimum)

0.04 N-mm

Holding Torque (minimum)

0.08 N-mm (zero power)

Developer’s kits
Developer’s kits provide easy smart stage evaluationand system prototyping. New Scale Pathway™
software and USB-to-PC adapter provides access tostage settings, motion commands, diagnostics, andmore. Use the intuitive script generator to createcommand sequences for automated operation.

Recommended Maximum Payload mounted to rotating shaft(Payload must be balanced)
Mass3gInertia

350 g-mm2

CLOSED-LOOP performance (with built-in position sensor)
Recommended Step Frequency

Up to 100 Hz

Absolute Encoder Resolution~21.9727 mdeg

Repeatability+/-0.05 deg

Accuracy

0.25 deg

Closed-Loop Step & Settle Times (Typical)*
0.5 deg

16 ms

5 deg

22 ms

20 deg

31 ms

Open-Loop Step & Settle Times (Typical)*
0.05 deg

0.5 ms

0.5 deg

1.2 ms

5 deg

5 ms

20 deg11.2 ms

Input Voltage

3.3 VDC +/- 10%

Power Consumption (typical)

750 mW active, moving
190 mW active, ready
50 mW standby

Stage Mass

4.7 g

Operational Lifetime>2 million random positions or 7years, whichever occurs first

Temperature/Relative Humidity

0 to +60 C, non-condensing

Compliance

RoHS; CE pending

Communication Interface

I2C, SPI, UART, analog servo
Input directly to M3-RS

Controller

Integrated into stage, 64 MIPS
NO external controller needed*With 0.6 g-mm2 inertial load mounted to output shaft, based on a target tolerance of
2 encoder counts.

Ordering information
Developer’s kits are available from New Scale andselect reps and distributors. Contact New Scale
regarding additional stages and flex cables for use withthe developer’s kit to create more complicated systems,
or to inquire about volume pricing.
ModelDescription

DK-M3-RS-U2-4.5-360

Rotary Stage Developer’s Kit• M3-RS-U2-4.5-360 Rotary Smart Stage• Breakout PCB• M3 USB Adapter• Screwdriver and Mounting Screws• 10 Pin Straight flex cable• 16 Pin Straight flex cable• USB Extension cable• New Scale Pathway Software• Quick Start Guide

Download CAD files and user manuals at
https://www.newscaletech.com/downloads/pleaseregister/ (registration required).

2 | New Scale Technologies, Inc. ~ w w w . n e w s c a l e t e c h . c o m ~ Phone (585) 924-4450

M3-RS-U2-45-360 Datasheet | 1-6-2023