Quantum Devices Model QR145 optical incremental encoder provides an improved feedback solution in applications typically using modular encoders. With an overall height of only 0.87” and the stability of a bearing encoder design, the model QR145 optical incremental encoder can provide significant performance upgrades in applications limited by traditional modular encoder solutions. Outputs consist of a quadrature with reference pulse and three-phase commutation, which can be configured with either the industrial standard 5 volt RS-422 Line Driver or the 5 to 26 volt OL7272 line driver. A flexible spring mount allows for much greater tail shaft run out than can be tolerated by modular encoder designs, plus it provides 30 degrees of rotation for commutation timing. A housing constructed of conductive carbon fiber composite provides the EMI shielding of an all metal housing and the performance of a lightweight robust assembly. An optional IP66 housing is available at a fraction of the cost of competitors’ comparable sealed encoders. Use QR145 with our QC201 Commutation Indicator for easier motor encoder alignment.
Contact Quantum Devices to customize QR145.
Note: prior to transitioning to RoHS-compliant, the product name was QD145 rather than QR145. Therefore, when cross-referencing a QD145 configuration, simply substitute the configuration prefix with QR145.
| Input Voltage | 5 VDC ±5% or 5-26 VDC |
|---|---|
| Input Current Requirements | 125 mA typical @ 5 VDC plus interface loads |
| Input Ripple | 2% peak to peak @ 5 VDC |
| Output Circuits | 01 = 26C31 line driver (RS-422) 02 = OL7272 high voltage line driver 03 = TTL output (single-ended) 04 = ABZ 26C31 line driver, UVW open collector *Other outputs (or combinations) upon request including open collector ABZ |
| Incremental Output Format | Quadrature with A leading B for CW rotation Index pulse centered over A for 2500 line count and below Index pulse true over A and B high for 2500 line count and above |
| Max Operating Frequency | 500 kHz |
| Symmetry | 180º electrical ± 10% typical |
| Minimum Edge Separation | 54° electrical |
| Commutation Format | Three phase 4, 6 or 8 poles (other pole counts upon request) |
| Commutation Accuracy | ±1° mechanical |
| Storage Temperature | -40 to 125°C |
|---|---|
| Operating Temperature | -20 to 100°C typical -20 to 120°C optional |
| Humidity | 98% non-condensing |
| Vibration | 20 g's @ 50 to 500 CPS |
| Shock | 50 g's @ 11 ms duration |
| Maximum Shaft Speed | 8000 RPM |
|---|---|
| Bore Diameter (Tolerance) | 0.1875", 0.250", 0.3125", 0.375", 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm (+0.0005/-0.0000") |
| Allowable Shaft Runout | 0.007" TIR |
| Axial Shaft Movement | ±0.030" |
| Housing | Carbon fiber composite (case ground via cable) |
| Housing Volume Resistivity | 10⁻² ohm·cm |
| Termination | 15 conductor cable, 28 AWG 18" long 9 conductor cable for non-commutated and TTL outputs |
| Mounting | 1.575", 1.812" bolt circle or size 15 resolver |
| Moment of Inertia | 1.5x10⁻⁴ oz·in·s² |
| Acceleration | 1x10⁵ radians/s² |
| Accuracy | ± 1.0 arc minute |
To get more information and pricing about this product, please tell us more about what you are looking for below and we can get you what you need:
Consult factory for configurations not shown (e.g. resolution, commutation, etc.).
Create an account to gain access to all of our 3D models!
Create an account to gain access to all of our 3D models!
