HS22 Incremental Encoders
Position Sensors & Encoders
The HS22 series of hollow shaft incremental encoder offers application advantages over conventional optical encoders. This heavy duty unit is designed for ease of installation to a servo motor, the encoder’s flexible coupling fits over the driven motor shaft to provide an accurate, backlash-free method of attachment. The mounting method eliminates the need for couplings, sprockets, or gearing. The integral flex mount provides for a 20-degree angular adjustment. Through-shaft or blind shaft configurations of the HS22 encoder are available. Through-shaft units allow for applications where the center of the encoder must be used for transmission of fluids, cabling, or optics. Blind shaft units are designed to mate with shaft lengths of 0.50 to 1.50 inch. Standard outputs for both configurations include: A and B in quadrature with index and optional commutation signals for brushless motor control.
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Specifications
| Shaft Bore | 0.500” (standard) 0.375”, 0.250”, 10mm, 8mm and 6mm available |
| Allowable Misalignment | 0.010 T.I.R. on mating shaft |
| Bore Runout | .001" T.I.R. |
| Starting Torque at 25°C | 5 in-oz (max) |
| Bearings | 52100 SAE high carbon steel |
| Shaft Material | 303 stainless steel |
| Bearing Housing | Die cast aluminum with protective finish |
| Cover | Drawn aluminum with protective finish |
| Bearing Life | 7.5 X 109 revs (50,000 hrs at 2500 RPM) |
| Maximum RPM | 5,000 RPM |
| Moment of Inertia | 10 X 10-4 oz-in-sec2 |
| Weight | 10 oz. maximum |
| Code | Incremental Output Format, 2 channels in quadrature, one cycle (nominal) ungated index (other index options and commutation channels available—consult factory). |
| Cycles per Shaft Turn | 100 to 2540 |
| Supply Voltage | 5, 12–15, 24–28 VDC |
| Current Requirements | 120 mA typical, 175 mA max |
| Voltage/Output | (see note 5) 28V/V: Line Driver, 5–28 VDC in, Vout = Vin 28V/5: Line Driver, 5–28 VDC in, Vout = 5 VDC 28V/OC: Open Collector, 5 – 28 VDC in, OCout |
| Protection Level | Output short circuit |
| Frequency Response | 100kHz allowable operating speed (RPM) = (100kHz/Resolution) x 60 |
| Output Terminations | see Table 1, following pages |
| Enclosure Rating | NEMA 5 (IP50) for through shaft versions (TS) and NEMA 12 (IP52) for blind shaft (BS) versions |
| Temperature | Operating: 0º to 70º C; extended temperature testing available, -40º to 85º ; storage, -20º to 90º C. |
| Shock | 50 g’s at 11 msec duration |
| Vibration | 5 to 2000 Hz @ 10 g’s |
| Humidity | 98% RH non-condensing |