Quantum Devices, Inc. Model JR12 Optical Rotary Encoder provides an improved feedback solution in applications typically using pancake resolvers with same threaded shaft and jam nut mounting. With an overall height of less than one inch and the stability of a bearing encoder design, the model JR12 can provide significant performance upgrades in applications limited by traditional resolvers or modular encoder solutions. Output options consist of a quadrature with index pulse and three-phase commutation. A flexible member allows for much greater tail shaft run out and TIR than can be tolerated by modular encoder designs, plus the mounting flange eliminates the need for expensive servo mounting clips.
| Input Voltage | 5 VDC ± 5% |
|---|---|
| Input Current Requirements | 65 mA typical, 100 mA max plus interface loads |
| Input Ripple | 2% peak to peak @ 5 VDC |
| Output Circuits | A = 26C31 line driver (RS-422 or single-ended TTL) B = ABZ 26C31 line driver, UVW open collector (no U’ V’ W’) |
| Incremental Output Format | Quadrature with A leading B for CW rotation Index pulse true over A and B high |
| Max Operating Frequency | 500 kHz |
| Symmetry | 180° electrical ± 10% typical |
| Minimum Edge Separation | <4000 PPR = 54° electrical ≥4000 PPR = 45° electrical |
| Commutation Format | Three phase 4, 6 or 8 poles (other pole counts upon request) |
| Commutation Accuracy | ± 1° mechanical |
| Z Channel to U Channel | ± 1° mechanical |
| Storage Temperature | -40 to 125°C |
|---|---|
| Operating Temperature | -20 to 115°C |
| IP Rating | IP40 |
| Humidity | 90% non-condensing |
| Vibration | 20 g's @ 50 to 500 CPS |
| Shock | 50 g's @ 11 ms duration |
| Bore Diameter (Tolerance) | 0.250" (+0.0010/-0.0000") |
|---|---|
| Allowable Shaft Runout | 0.007" TIR |
| Axial Shaft Movement | ± 0.030" |
| Maximum Shaft Speed | 8000 RPM |
| Interface Connector | Connector: JAE P/N FI-W15P-HFE |
| Mounting | Size 15 pancake resolver |
| Moment of Inertia | 9.1 x 10⁻⁵ oz·in·s² |
| Acceleration | 1x10⁵ radians/s² |
| Accuracy | Instrument error 1.5 arc minutes max |
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Consult factory for configurations not shown (e.g. resolution, commutation, etc.).
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