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 Size
11 High Resolution Optical Encoder
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Design Features:
- Standard Size 11 Encoder Mounting
- Compatible with Size 11 Resolver Mounting
- Resolutions up to 2048 line per Revolution Direct Read
- Unique Optical Sensing System
- Differential and Single Ended Output
- Nickel Coated Carbon Fiber Housing
- IP 50 Sealing
- High Noise Immunity
- Low Supply Current Requirements
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Quantum Devices, Inc. Model QD110 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 QD110 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 QD110 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. A nickel coated
carbon fiber composite housing provides the EMI shielding of an
all-metal housing and the high performance of a lightweight assembly.
Electrical Specifications
| Input Voltage |
5 VDC +/- 5% or 5-26 VDC |
| Input Current Requirements |
80 mA Max. Output Option 01 &02, 35mA Max
Output Option 03; Plus interface Loads |
| Input Ripple |
2% Peak to Peak @ 5 VDC |
| Output Circuits |
AM26LS31 RS 422A line driver
TTL Output
OL7272 Line Driver |
| Output Format |
Quadrature with A leading B for CW Rotation.
Index centered over A |
| Frequency Response |
200 kHz |
| Symmetry |
180 Degrees +/- 10% |
| Minimum Edge Separation |
54 Electrical degrees max |
Environmental Specifications
| Storage Temperature |
-40 to 125oC |
| Operating Temperature |
0 to 70oC Typical
-20 to 100oC 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 |
| Shaft Diameter |
0.125" |
| Shaft Material |
Stainless Steel |
| Bearings |
Radial Ball Bearing, R2 type |
| Radial Shaft Load |
2 lbs. Maximum |
| Axial Shaft Load |
1 lbs. Maximum |
| Housing |
Carbon Fiber Composite (case grounded via
connector) |
| Housing Volume Resistivity |
10-2 ohm-cm |
| Termination |
Two Rows of 5 Pins on 0.100" Centers
8" Ten Conductor Ribbon Cable wi 2x5 connector |
| Mounting |
Servo |
| Moment of Inertia |
9.5x10-6 oz-in-sec2 |
| Acceleration |
1x105 Radians per Second2 |
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