Bulletin No. ZSD-A Drawing No. LP0736 Released 08/11 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 www.redlion.net MODEL ZSD - 0.25" SHAFT STANDARD SERVO MOUNT ROTARY PULSE GENERATOR 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. 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, VOH = 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, VOH = 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-sec2 (4.8 gm-cm2) 7. ELECTRICAL CONNECTION: 36" (914.4 mm) cable. 24 AWG foil and braid shield. FUNCTION +VDC Common DIMENSIONS In inches (mm) CABLE LENGTH 36 (914.4) STANDARD M3 0.18 (4.57) DEEP 3X 120 O1.102 (28.00) B.C. +0.00 O0.2498 +0.0000 -0.0004 ( 6.34 -0.01 ) 0.158 (4.01) 0.7870 +0.0000 -0.0005 (19.990 +0.000 -0.013 ) 0.76 (19.3) ORDERING INFORMATION MODEL NO. ZSD DESCRIPTION 0.25" Shaft Standard Servo Mount Rotary Pulse Generators Red Black White Data B Green Index Z Orange 1.5 (38) 0.020 (0.51) WIRE COLOR Data A 0.100 (2.54) 0.312 (7.92) 0.500 (12.70) PPR PART NUMBER 60 ZSD0060A 100 ZSD0100A 500 ZSD0500A 600 ZSD0600A 1000 ZSD1000A 1200 ZSD1200A 2000 ZSD2000A 2500 ZSD2500A Only factory stocked part numbers are listed. Consult the factory for part number and availability of other PPR and output configurations. 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 ACCESSORIES MODEL NO. RPGFC DESCRIPTION PART NUMBER Flexible Coupling (1" Length) 0.25" - 0.25" RPGFC001 Flexible Coupling (1" Length) 0.25" - 0.375" RPGFC002 Flexible Coupling (1" Length) 0.25" - 6 mm RPGFC005