R22i Miniature Encoder


RENCO Encoders, Inc. announces the new R22i. This full featured optical incremental encoder provides position feedback with optional commutation signals for brushless in a package only 22mm in diameter by 15mm long. Several optional bolt patterns are available and motor shaft sizes up to 4mm can be accommodated.
The optional 3 phase (U, V, W) commutation outputs are readily available for 4, 6, 8 and 10 pole brushless motors. Custom configurations can be ordered.  Incremental encoder resolutions of 100 to 1024 line counts are available with A, B and Z (reference) channels.
The R22i comes ready to go from our factory, with no need for the user to perform any alignment process for the incremental outputs.  The encoder is centered by the motor bearing pilot, and the gap is pre-set.  Operation temperature is -30°C to +110°.



• Operating Temp -30° to 115°C • Excursion Limits: • Storage Temp -40° to 125°C • Humidity 85%/85°C non-condensing • IP Rating IP40 with closed cover • Moment of Inertia 0.063g-cm2 • [8.97 x 10-7 oz in sec2] • Weight 20 encoders with tray = 10 oz. • Base Material PET 530 • Cover Material PET 530 • Disc Material Metal 0.05 THK TYP • Hub Material Aluminum • Shaft Max End Play ±0.254mm [± 0.01] • Shaft Run Out 0.025mm [.001"] TIR • Signals Incremental with optional commutation • Input Voltage 5.0 VDC ± 10% Single Supply • Current See Pin Functions Table on Page 2 • Output Format A/B in phase quadrature. INDEX width & location gated with respect to data • Output Type LD = AM26C31 20 mA Source or Sink Max. • VO = Open Collector 4 mA Sink Max. • VC = Open Collector w/ 2K Ohm pull-ups 4mA Sink Max. • Output Logic Levels Logic 0 = 0.5 V Max, Logic 1 = 2.5 V Min. • Operating Frequency To 300 KHz
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