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FEATURES
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- Cast base and cover
- Self Gapping
- Resolution 20 - 1250 pulses per revolution
- Frequency response to 200 KH
- Wide Selection of Hub Bore sizes and terminations
- 12 Month Warranty
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DESCRIPTION
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The 21Al series Modular is highly reliable, low cost encoder using the latest SMT technology.
Installation and set-up is dramatically simplified with the gap/cam mechanism. The modular is aligned and gapped with the clockwise 90∞ turn of the cam. No further adjustments are required.
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ELECTRICAL
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- Code— Incremental
- Resolution—20-1250 cycles per revolution
- Supply Voltage—5VDC
- Supply Current—140 MA max
- Light Source—LED
- Output Format
- Two count channels electrically phased 90° ± 25°
- One (optional) Zero Reference signal see fig#2
- Output Signal
- Vhigh=Vs thru 4.7K pull-up
- Vlo = .5 volts max
- Rise/fall time 1.0 µsec max
- Symmetry (duty cycle)—180° ± 10°
- Frequency Response—0 -200 KHz
- Output Device
- TTL 7404
- TTL 7406 Open Collector
- CMOS — MC4069
- Line Driver SN 75183D or 26LS 31CM
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MECHANICAL
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- Dimensions— See outline drawing
- Weight—3 oz. max
- Moment of Inertia—1 x 10-4 oz.-in. sec2
- Hub Bore Size
- Nominal 1/4", 3/8", 1/2", 5/8" are standard, special sizes and mm diameters are available
- Operating Temp
- 0° to 70°C (32° to 158°F)
- -25°C to 125°C
- Slew Speed —10,000 rpm
- Accuracy — ±.2 min of ARC
- Materials— CAST ALUM.BASE/COVER
- Code Disc Material— Acrylic , Metal
- Precision Chrome on glass
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ELECTRICAL CONNECTIONS |
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OUTPUT CHARACTERISTICS |
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ORDERING INFORMATION |
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OUTLINE DIMENSIONS |
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STANDARD MOUNTING PATTERN |
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FIGURE 1 |
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