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QR110 Optical Rotary Encoder

  • Overview
  • Specifications
  • Info & Pricing

About QR110 Optical Rotary Encoder

Quantum Devices, Inc. Model QR110 Optical Rotary Encoder is designed to provide high resolution digital feedback in an industrial standard size 11 mounting format. Quadrature with reference pulse output format, resolutions up to 2048 lines per revolution (direct read) and a variety of electrical options are easily capable of satisfying the most demanding feedback application. The QR110 provides the user digital position information, directly from the feedback device, without the external R to D converters that are typically used with resolver feedback. Converting from size 11 resolver to encoder feedback is easily accomplished with the QR110 without the need for costly mounting modification to existing designs. QDI’s unique optical sensing system embodies a much simplified encoder design, which ultimately results in longer service life and less down time due to feedback device failure. The encoder housing is constructed of a conductive carbon fiber composite that provides the EMI shielding of an all-metal housing and performance of a lightweight robust assembly.

Design Features:

  • Standard size 11 encoder mounting
  • Compatible with size 11 resolver mounting
  • Resolutions up to 2048 lines per revolution direct read
  • Unique optical sensing system
  • Differential and single ended outputs
  • Nickel coated carbon fiber housing
  • IP50 sealing
  • High noise immunity
  • Low supply current requirements
  • RoHS construction

Note: prior to transitioning to RoHS Compliance, the product name was QD110 rather than QR110. Therefore, when cross-referencing a QD110 configuration, simply substitute the configuration prefix with QR110.


Electrical Specifications

Input Voltage 5 VDC ± 5% or 5-26 VDC
Input Current Requirements 80 mA max. Output option 01 & 02, 35 mA max output
option 03; plus interface loads
Input Ripple 2% peak to peak @ 5 VDC
Output Circuits 01 = TTL output (single-ended)
02 = 26C31 line driver (RS-422)
03 = OL7272 high voltage line driver
Output Format Quadrature with A leading B for CW rotation
Ungated Z index pulse true over A and B high
Max Operating Frequency 200 kHz
Symmetry 180° electrical ± 10%
Minimum Edge Separation 54° electrical

Environmental Specifications

Storage Temperature -40 to 125°C
Operating Temperature 0 to 70°C typical
-20 to 100°C optional
Humidity 98% non-condensing
Vibration 20 g's @ 50 to 500 CPS
Shock 50 g's @ 11 ms duration

Mechanical Specifications

Maximum Shaft Speed 8000 RPM
Nominal Shaft Diameter 0.125"
Shaft Material Stainless steel
Bearings Radial ball bearing, R2 type
Radial Shaft Load 2 lb maximum
Axial Shaft Load 1 lb maximum
Housing Carbon fiber composite (case ground via connector)
Housing Volume Resistivity 10⁻² ohm·cm
Termination Two rows of 5 pins on 0.100" centers
8" ten conductor ribbon cable with 2x5 connector
Mounting Size 11 resolver
Moment of Inertia 9.5x10⁻⁶ oz·in·s²
Acceleration 1x10⁵ radians/s²
Info & Pricing

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