Bulletin No. ZMD-B Drawing No. LP0733 Released 07/12 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 www.redlion.net MODEL ZMD - MINIATURE LENGTH SENSOR (Replaces MODEL LSM) COMPACT SIZE QUADRATURE OUTPUT BUILT-IN SPRING TENSIONING VERTICAL, HORIZONTAL, OR UPSIDE-DOWN MOUNTING REDUCES INSTALLATION TIME VARIOUS MEASURING WHEELS AVAILABLE DESCRIPTION SPECIFICATIONS Designed for light to medium duty sensing applications, the Miniature Length Sensor, Model ZMD, is compact in size and easy-to-use. It features a built-in spring-loaded torsion arm that provides a simple-toadjust torsion load, allowing the unit to be mounted in almost any orientation, including upside down. Using a 6" or 200 mm wheel, the ZMD can be used on almost any surface, while operating at speeds up to 3000 feet per minute. The housing is a durable, conductive composite material that will eliminate static build up. Whether you need to measure speed, position, or distances, the Model ZMD is the ideal solution. For other pulse rates and/or wiring configurations, contact the factory for further details. ELECTRICAL SPECIFICATIONS 1. INPUT VOLTAGE: 4.75 to 28 VDC max for temperatures up to 85C; 4.75 to 24 VDC for temperatures between 85C to 100C, reverse polarity protected. 2. INPUT CURRENT: 100 mA max (65 mA typical) with no output load 3. OUTPUTS: NPN Open Collector Transistor, VOH = 30 VDC max.; 20 mA max. current. Incremental - Two square waves in quadrature with A leading B for clockwise rotation, as viewed from the wheel side. 4. MAX FREQUENCY: 200 KHz standard 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 (Tested with 2 meter cable) 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) Open Collector Output Wiring The ZMD 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 different than the encoder supply voltage (30 VDC maximum). 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. MECHANICAL SPECIFICATIONS 1. MAXIMUM MECHANICAL SPEED: 6000 RPM. Higher speeds may be achievable, contact the factory. 2. SHAFT MATERIAL: Stainless Steel 3. SHAFT TOLERANCE: +0.0000/-0.0004" (+0.000/-0.010 mm) 4. RADIAL SHAFT LOAD: 5 lb. max. Rated load of 2 to 3 lb for bearing life of 1.2 x 10 10 revolutions 5. AXIAL SHAFT LOAD: 5 lb. max. Rated load of 2 to 3 lb for bearing life of 1.2 x 10 10 revolutions 6. STARTING TORQUE: 0.05 oz-in 7. ELECTRICAL CONNECTION: 2 meter Cable, (foil and braid shield, 24 AWG conductors). Drain wire internally connected to case. SAFETY SUMMARY All safety related regulations, local codes and instructions that appear in the literature or on equipment must be observed to ensure personal safety and to prevent damage to either the instrument or equipment connected to it. If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. FUNCTION CAUTION: Read complete instructions prior to installation and operation of the unit. CAUTION: Risk of electric shock. CABLE WIRE COLOR +VDC Red Com Black A White B Green Shield Bare DIMENSIONS In inches (mm) 6.000 CIRCUMFERENCE (ordered separately) TORQUE ADJUSTMENT Metric wheel available UNDER RUBBER CAP CABLE LENGTH 2 meter STANDARD O0.2498 (O5.995) 0.50 (12.6) "L" SIDE "L" SIDE "R" SIDE 0.24 (6) 0.740 (18.8) 0.100 (2.54) 2.500 (63.5) 3.13 (79.6) 1.00 (25.3) 1/4-20 or M6 THREADS AVAILABLE SHAFT CAN BE REVERSED FOR MOUNTING FROM EITHER SIDE 1.3 (33) TYPICAL O 1.71 (43.4) "R" SIDE Tolerance: x.xxx" = 0.005" x.xx" = 0.01" 1 0.60 (15.2) 8. MOUNTING: Pivot Shaft can be mounted from either side of the housing and is field reversible. 9. HOUSING: Stainless steel fibers in a high temperature nylon composite 10. WEIGHT: 5 oz typical ENVIRONMENTAL SPECIFICATIONS MOUNTING BRACKET This accessory angle mounting bracket allows for a variety of mounting positions and makes installation of the ZMD even easier. 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: IP50 DIMENSIONS In inches (mm) ORDERING INFORMATION MODEL NO. DESCRIPTION Miniature Length Sensor with Quadrature Output ZMD PPR PART NUMBER 250 ZMD0250B 500 ZMD0500B 1000 ZMD1000B 2000 ZMD2000B 2500 ZMD2500B R.14 2.00 (50.8) 1.00 (25.4) 1.00 (25.4) 1.75 (44.45) .25 (6.35) Do not dispose of unit in trash - Recycle 1.75 (44.45) ACCESSORIES R.093 1.25 (31.75) DESCRIPTION PART NUMBER Mounting Bracket RPGMB002 Urethane (6" Circumference) Wheel WI0006OF Knurled (6" Circumference) Wheel WI0006OK Urethane (200 mm Circumference) Wheel WM0200OF Knurled (200 mm Circumference) Wheel WM0200OK .75 (19.05) .125 (3.175) 1.81 (45.97) Only factory stocked part numbers are listed. Consult the factory for part number and availability of other PPR and output configurations. LIMITED WARRANTY The Company warrants the products it manufactures against defects in materials and workmanship for a period limited to two years from the date of shipment, provided the products have been stored, handled, installed, and used under proper conditions. The Company's liability under this limited warranty shall extend only to the repair or replacement of a defective product, at The Company's option. The Company disclaims all liability for any affirmation, promise or representation with respect to the products. The customer agrees to hold Red Lion Controls harmless from, defend, and indemnify RLC against damages, claims, and expenses arising out of subsequent sales of RLC products or products containing components manufactured by RLC and based upon personal injuries, deaths, property damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be to any extent liable, including without limitation penalties imposed by the Consumer Product Safety Act (P.L. 92-573) and liability imposed upon any person pursuant to the Magnuson-Moss Warranty Act (P.L. 93-637), as now in effect or as amended hereafter. No warranties expressed or implied are created with respect to The Company's products except those expressly contained herein. The Customer acknowledges the disclaimers and limitations contained herein and relies on no other warranties or affirmations. Red Lion Controls Headquarters 20 Willow Springs Circle York PA 17406 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 Red Lion Controls Europe Printerweg 10 NL - 3821 AD Amersfoort Tel +31 (0) 334 723 225 Fax +31 (0) 334 893 793 Red Lion Controls India 54, Vishvas Tenement GST Road, New Ranip, Ahmedabad-382480 Gujarat, India Tel +91 987 954 0503 Fax +91 79 275 31 350 Red Lion Controls China Unit 101, XinAn Plaza Building 13, No.99 Tianzhou Road ShangHai, P.R. China 200223 Tel +86 21 6113-3688 Fax +86 21 6113-3683