open collector output wiring the zsd sensors have open collector outputs. an open collector output brings the uncommitted collector of the encoder switching device to the external world. because the collector element is not associated with the sensor supply voltage, the sensor output collector may be ?pulled up? to external voltages (30 vdc max.) different than the encoder supply voltage. npn open collector outputs are current sinking devices. an output signal will not be generated unless a pull-up resistor is connected from the open-collector to the positive side of an external supply. the same supply can be used for powering the unit and for the pull-up resistor. specifications electrical specifications 1. supply voltage : 4.75 to 28 vdc, 100 ma max. with no output load 2. outputs : npn open collector transistor, v oh = 30 vdc max.; 20 ma max. current. incremental - two square waves in quadrature with channel a leading channel b for clockwise rotation. 3. max. frequency : 200 khz 4. index : npn open collector transistor, v oh = 30 vdc max.; 20 ma max. current. once per revolution centered over output channel a. index is a positive going pulse. 5. noise immunity : tested to bs en61000-6-2; bs en50081-2; bs en61000-4-2; bs en61000-4-3; bs en61000-4-6; bs en500811 6. symmetry : 180 (18) electrical 7. quad phasing : 90 (22.5) electrical 8. min edge sep : 67.5 electrical 9. accuracy : within 0.017 mechanical or 1 arc minute from true position (for ppr>189) mechanical specifications 1. maximum mechanical speed : 8000 rpm 2. shaft size : 0.25" (6.33 mm) 3. radial shaft load : 5 lbs. max. (2.25 kg) 4. axial shaft load : 5 lbs. max. (2.25 kg) 5. starting torque : 0.4 oz-in. (2.82 n-mm) 6. moment of inertia : 6.7 x 10 -5 oz-in-sec 2 (4.8 gm-cm 2 ) 7. electrical connection : 36" (914.4 mm) cable. 24 awg foil and braid shield. 8. weight : 3 oz. (85.0 g) environmental specifications 1. operating temperature : -20c to 85c 2. storage temperature : -25c to +85c 3. humidity : 98% rh non-condensing 4. vibration : 10 g @ 58 to 500 hz 5. shock : 80 g @ 11 msec duration 6. sealing : ip64 model zsd - 0.25" shaft standard servo mount rotary pulse generator cable length 36 (914.4) standard m3 0.18 (4.57) deep 3x 120 ?1.102 (28.00) b.c. ? 0.7870 +0.0000 -0.0005 ( ? 19.990 +0.000 -0.013 ) 0.020 (0.51) ?0.2498 +0.0000 -0.0004 ( 6.34 +0.00 -0.01 ) 0.158 (4.01) 0.76 (19.3) 1.5 (38) 0.100 (2.54) 0.312 (7.92) 0.500 (12.70) dimensions in inches (mm) model no. ppr part number zsd 0.25" shaft standard servo mount rotary pulse generators 1000 60 zsd1000a zsd0060a 1200 100 zsd1200a zsd0100a 2500 600 2000 500 zsd2500a zsd0600a zsd2000a ZSD0500A description ordering information bulletin no. zsd-a drawing no. lp0736 released 08/11 tel +1 (717) 767-6511 fax +1 (717) 764-0839 www.redlion.net general description the model zsd encoder is ideal for applications requiring a miniature, high precision, low cost encoder, designed with all metal construction for years of trouble-free operation. the npn open collector outputs are each current limited to 20 ma. the outputs are standard quadrature with index, available in resolutions up to 2500 pulses per shaft revolution. the quadrature separation is typically 90 electrical degrees. output a leads output b for clockwise rotation of the encoder shaft. only factory stocked part numbers are listed. consult the factory for part number and availability of other ppr and output configurations. wire color red function +vdc black common white data a green data b orange index z accessories rpgfc002 flexible coupling (1" length) 0.25" - 0.375" rpgfc001 flexible coupling (1" length) 0.25" - 0.25" part number description model no. rpgfc005 flexible coupling (1" length) 0.25" - 6 mm rpgfc
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