panel mount optical encoders technical data heds-5700 series features ? two channel quadrature output with optional index pulse ? available with or without static drag for manual or mechanized operation ? high resolution C up to 512 cpr ? long rotational life, >1 million revolutions ? -20 to 85 c operating temperature range ? ttl quadrature output ? single 5 v supply ? available with color coded leads description the heds-5700 series is a family of low cost, high performance, optical incremental encoders with mounted shafts and bushings. the heds-5700 is available with tactile feedback for hand operated panel mount applications, or with a free spinning shaft for applica- tions requiring a pre-assembled encoder for position sensing. the encoder contains a collimated led light source and special detector circuit which allows for high resolution, excellent encod- ing performance, long rotational life, and increased reliability. the unit outputs two digital wave- forms which are 90 degrees out of phase to provide position and direction information. the heds-5740 series provides a third index channel. * package dimensions optional wiring color code table color white brown red black blue (three channel) output a b v cc gnd i *note: for the heds-5700, pin #2 is a no connect. for the heds-5740, pin #2 is channel i, the index output. thread 3/8-32 nut 3/8-32 x 7/16"
2 electrical characteristics over recommended operating range, typical at 25 c parameter symbol min. typ. max. units notes supply current i cc 17 40 ma two channel 57 85 three channel high level output voltage v oh 2.4 v i oh = -40 m a max. low level output voltage v ol 0.4 v i ol = 3.2 ma note: if more source current is required, use a 3.2 k pullup resistor on each output. the heds-5700 is quickly and easily mounted to a front panel using the threaded bushing, or it can be directly coupled to a motor shaft (or gear train) for position sensing applications. applications the heds-5700 with the static drag option is best suited for applications requiring digital information from a manually operated knob. typical front panel applications include instruments, cad/cam systems, and audio/video control boards. the heds-5700 without static drag (free spinning) is best suited for low speed, mechanized operations. typical applications are copiers, x-y tables, and assembly line equipment. absolute maximum ratings parameter symbol min. max. units notes storage temperature t s -40 +85 c operating temperature t a -20 +85 c vibration 20 g 20 hz - 2 khz supply voltage v cc -0.5 7 v output voltage v o -0.5 v cc v output current per channel i o -1 5 ma shaft load C axial 1 lb C radial 1 lb recommended operating conditions parameter symbol min. max. units notes temperature t -20 +85 c noncondensing atmosphere supply voltage v cc 4.5 5.5 v ripple <100 mv p-p rotational speed C drag 300 rpm C free spinning 2000 rpm note: agilent technologies encoders are not recommended for use in safety critical applications. eg. abs braking systems, power steering, life support systems and critical care medical equipment. please contact sales representative if more clarification is needed.
3 mechanical characteristics parameter min. typ. max. units notes starting torque C static drag 0.47 oz in C free spinning 0.14 oz in dynamic drag C static drag 1.1 oz in 100 rpm C free spinning 0.70 oz in 2000 rpm rotational life C static drag 1 x 10 6 revolutions 1 lb load C free spinning 12 x 10 6 revolutions 4 oz radial load mounting torque of nut 13 lb in heds-57 shaft configuration 0 - 1/4" dia. with no flat 1 - 6 mm dia. with no flat 2 - 1/4" dia. with flat drag option 0 - free spinning 1 - static drag resolutions (cycles per revolution) heds-570x 2 channel k - 96 cpr g - 360 cpr c - 100 cpr a - 500 cpr f - 256 cpr i - 512 cpr heds-574x three channel* a - 500 cpr outputs 0 - 2 channel 4 - 3 channel mechanical configuration 0 - pins 1 - 6" coded leads output waveforms ordering information 360 ?5.5 180 ?45 s1 s2 s3 s4 90 ?45 typical 90 ?45 ch a ch b ch i note:
all values are in electrical degrees, where 360?e = 1 cycle of resolution.
errors are worst case over one revolution.
ch b leads ch a for counterclockwise rotation.
ch a leads ch b for clockwise rotation. *please contact factory for other resolutions.
00 01 02 10 11 12 heds-5700# a * * * c**** f* ** g* i* ** * * k* * heds-5701# a * * * c* f* * ** g* h* * i* heds-5740# a * www.agilent.com/semiconductors for product information and a complete list of distributors, please go to our web site. for technical assistance call: americas/canada: +1 (800) 235-0312 or (408) 654-8675 europe: +49 (0) 6441 92460 china: 10800 650 0017 hong kong: (+65) 271 2451 india, australia, new zealand: (+65) 271 2394 japan: (+81 3) 3335-8152(domestic/interna- tional), or 0120-61-1280(domestic only) korea: (+65) 271 2194 malaysia, singapore: (+65) 271 2054 taiwan: (+65) 271 2654 data subject to change. copyright ? 2002 agilent technologies, inc. obsoletes 5988-2565en march 15, 2002 5988-5856en
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