AEDM-5810-W11

AEDM-5xxx Quick Assembly High Resolution Three Channel Optical Encoders Data Sheet Description Features Avago Technologies' AEDM-5xxx series encoders are high resolution and high performance three channel optical incremental encoders. These encoders emphasize on high reliability, high resolution, and easy assembly. • Two channel quadrature output with index pulse Each encoder contains a LED source with lens, an ASIC with integrated photo detector arrays, LED current regulation, interpolator and output driver circuitry, and a code wheel which rotates between the emitter and detector ASIC. The outputs of the AEDM-5xxx are two square waves in quadrature. In addition, a third channel offers index signal, which is a 90 electrical degree, true index pulse which is generated once for each full rotation of the code wheel. The AEDM-5xxx series utilizes a film code wheel allowing for resolutions up to 5000 CPR. • High Resolution - up to 5000 CPR • Operating temperature – 40°C to +85°C • Quick and easy assembly • No signal adjustment required • Cost Effective solution • Small size • TTL compatible output • Single 5V supply with ±10% tolerance • External mounting ears option available for larger motors. These bearing-less housed encoders may be quickly and easily mounted to a motor. For larger diameter motors, the AEDM-59xx series feature external mounting ears option. The quadrature signals and the index pulse are accessed through five 0.025 inch square pins located on 0.1 inch centers. Standard resolutions between 2000 and 5000 counts per revolution are presently available. Consult local Avago sales representatives for other resolutions. Note: Avago Technologies encoders are not recommended for use in safety critical applications such as. ABS braking systems, power steering, life support systems and critical care medical equipment. Please contact our sales representative if clarifications are needed. CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. Package dimensions AEDM-58xx NOTES: 1. LEAVE CLEARANCE FOR TURNING AND REMOVING THE HEX WRENCH. 2. TYPICAL DIMENSIONS IN MILLIMETERS (INCHES). *Note: For the AEDM-58XX Pin #2 is CH. I, the index output. AEDM-59xx NOTES: 1. LEAVE CLEARANCE FOR TURNING AND REMOVING THE HEX WRENCH. 2. TYPICAL DIMENSIONS IN MILLIMETERS (INCHES). *Note: For the AEDM-59XX Pin #2 is CH. I, the index output. 2 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Storage Temperature Ts -40 +85 °C Operating Temperature TA -40 +85 °C Supply Voltage VCC -0.5 7 V Output Voltage VO -0.5 Vcc V Output Current per Channel IOUT ±5 mA 12,000** RPM Velocity Note **: Velocity 12000 RPM applies to Encoder Resolution of 5000 CPR Recommended Operating Conditions Parameter Symbol Min. Temperature TA -40 Supply Voltage VCC 4.5 Load Capacitance Output Frequency Typ. Max. Units +85 °C 5.5 Volt CL 100 pF f 500 kHz 2000 – 2500 CPR 1,000 kHz 4000 – 5000 CPR Shaft Perpendicularity Plus Axial Displacement ± 0.15 (± 0.006) mm (in.) Spatial play (including shaft eccentricity) Ø0.40 (0.016) mm (in.) 5.0 Notes Ripple < 100 mVp-p Encoding Characteristics Encoding characteristics are applicable per the Recommended Operating Conditions, unless otherwise specified. Values are for the worst case error over the full rotation. Encoder Resolution ≥ 4000 CPR Parameter Symbol Pulse Width Error Logic State Width Error Min Typ.* Max Units DP 21 45 °e DS 17 45 °e Phase Error Df 12 25 °e Cycle Error DC 36 60 °e Index Pulse Width P0 65 90 115 °e Parameter Symbol Min Typ.* Max Units Pulse Width Error DP 20 30 °e Logic State Width Error DS 15 25 °e Phase Error Df 10 15 °e Cycle Error DC 17 30 °e Index Pulse Width P0 90 108 °e Encoder Resolution ≤ 2500 CPR 72 * Typical values specified at VCC = 5.0V and 25ºC and for single ended, unless otherwise stated 3 Electrical Characteristics Electrical Characteristics over Recommended Operating Range Parameter Symbol Min. Typ.* Max. Units Notes Supply Current ICC 25 80 mA No load High Level Output Voltage VOH V IOH = -5 mA Low Level Output Voltage VOL Rise Time tr 10 V IOL = 5 mA. ns CL = 100 pF Fall Time tf 10 ns CL = 100 pF 2.4 0.4 *Typical values specified at VCC = 5.0 V and 25°C. Mechanical Characteristics Parameter Symbol Codewheel Fits These Standard Shaft Diameters Moment of Inertia J Required Shaft Length [2] Dimension Tolerance [1] Units 2, 3, 4 5, 6, 8 +0.000 -0.015 mm 5/32, 1/8 3/16, 1/4 +0.0000 -0.0007 in 0.6 (8.0 x 10-6) g-cm2 (oz-in-s2) 14.0 (0.55) ± 0.5 (± 0.02) mm (in.) 2 screw mounting 19.05 (0.750) ± 0.13 (± 0.005) mm (in.) 3 screw mounting 20.90 (0.823) ± 0.13 (± 0.005) mm (in.) external mounting ears 46.0 (1.811) ± 0.13 (± 0.005) mm (in.) 2 screw mounting M 2.5 or (2-56) mm (in.) 3 screw mounting M 1.6 or (0-80) mm (in.) external mounting ears M 2.5 or (2-56) mm (in.) Encoder Base Plate Thickness 0.33 (0.130) mm (in.) Hub Set Screw (2-56) (in.) Bolt Circle [3] Mounting Screw Size [4] Notes: 1. These are tolerances required of the user. 2. The AEDM-5805, 5905 provide an 8.9 mm (0.35 inch) diameter hole through the housing for longer motor shafts. See Ordering Information. 3. The recommended mounting screw torque for 2 screw and external ear mounting is 1.0 kg-cm (0.88 in-lbs). The recommended mounting screw torque for 3 screw mounting is 0.50 kg-cm (0.43 in-lbs). 4 Output Waveforms C P CH. A AMPLITUDE φ S1 S2 S3 S4 CH. B t2 t1 5 4 3 2 1 CH. I P0 ROTATION * * SPIN DIRECTION FOLLOWS ARROW MARKING ON ENCODER Direction of Rotation: When the codewheel rotates in the counter-clockwise direction (as viewed from the encoder end of the motor), channel A will lead channel B. If the codewheel rotates in the clockwise direction, channel B will lead channel A. 5 Mounting Considerations The AEDM-5xxx Series high resolution encoders must be aligned using the aligning pins as specified in Figure 2, or using the HEDS-8910 Alignment Tool as shown in Encoder Mounting and Assembly. The AEDM-58xx can be mounted to a motor using either the two screw or three screw mounting option as shown in Figure 1. The optional aligning pins shown in Figure 2 can be used with either mounting option The AEDM-59xx have external mounting ears which may be used for mounting to larger motor base plates. Figure 3 shows the necessary mounting holes with optional aligning pins and motor boss. 3 SCREW MOUNTING M1.6 (0-80 UNF-2B) 3 PLCS EQUALLY SPACED ON 20.9 (0.823) DIA BOLT CIRCLE j ∅ 0.25 (0.010) MOTOR SHAFT CENTER A A 11.13/11.10 (0.438/0.437) HEIGHT=2.5 (0.10) 0.8(0.03)X45 ~ CHAMFER MOTOR SHAFT CENTER A r ∅ 0.05 (0.002) SHAFT LENGTH R 0.13 (0.005) MAX SEE MECHANICAL CHARACTERISTICS A 12.01 (0.473) 2 SCREW MOUNTING M2.5(2-56 UNC-2B) 2 PLCS EQUALLY SPACED ON 19.05(0.750) DIA BOLT CIRCLE j ∅ 0.25 (0.010) A Figure 1. Mounting Holes MOTOR SHAFT CENTER A 2 SCREW MOUNTING M2.5(2-56 UNC-2B) 2 PLCS EQUALLY SPACED ON 46.0(1.811) DIA BOLT CIRCLE j ∅ 0.25 (0.010) A ∅2.44/2.41 (0.096/0095) HEIGHT=0.76 (0.030) 0.25 (0.010)X45 ~ CHAMFER 2 PLACES j ∅ 0.15 (0.006) A 8.64 (0.680) 17.27 (0.680) Figure 2. Optional Mounting Aids 11.13/11.10 (0.438/0.437) HEIGHT=2.5 (0.10) 0.8(0.03)X45 ~ CHAMFER r ∅ 0.05 (0.002) A R0.13 (0.005) MAX 12.01 (0.473) 8.64 (0.680) 17.27 (0.680) ∅ 2.44/2.41 (0.096/0095) HEIGHT=0.76 (0.030) 0.25 (0.010)X45 ~ CHAMFER 2 PLACES j ∅ 0.15 (0.006) A Figure 3. Mounting with external ears Index Pulse Width (PO): The number of electrical degrees that an index output is high during one full shaft rotation. This value is nominally 90°e or 1/4 cycle. 6 Encoder Mounting and Assembly Assembly process for AEDM-58xx and AEDM-59xx 1. Slide the alignment tool onto the motor shaft. With alignment tool in place, mount encoder baseplate onto motor as shown above. Ensure that the holes in the baseplate align with the mounting holes in the motor body. Inset and tighten mounting screws* and remove alignment tool. 2. Snap encoder body onto base plate locking all 4 snaps. 3a. Inset the hex wrench into the body of the encoder. Ensure that it is properly seated into the code wheel hub set screws. Then apply a downward force on the end of the hex wrench. This sets the code wheel gap by levering the code wheel hub to its upper position. 3b. While continuing to apply a downward force, rotate the hex wrench in the clockwise direction until the hub set screw is tight** against the motor shaft. The hub set screw attaches the code wheel to the motor's shaft. 3c. Remove the hex wrench by pulling it straight out of the encoder body. 4. Use the center screwdriver slot, or either of the two side slots, to rotate the encoder cap dot clockwise from the one dot position to the two dot position. Do not rotate the encoder cap counterclockwise beyond the one dot position. The encoder is ready for use! * Adhesive should applied to the screw-baseplate interface to prevent screws loosening due to effect of vibration and high temperature on plastic. High temperature rated adhesive such as Hernon Ultra 317 is recommended. ** The recommended torque to tighten the setscrew is 15-18 ozf.inch. 7 Connectors HEDS-890x connector dimensions Figure 4. HEDS-8902 and HEDS-8903 Connectors Connectors Manufacturer Part Number AMP 103686-4 640442-5 Avago * HEDS-8902 (2 ch.) with 4-wire leads HEDS-8903 (3 ch.) with 5-wire leads Molex 2695 series with 2759 series term. * Avago connectors are designed to mechanically lock into the AEDM-5XXX Series. 8 Ordering Information Encoders with Film Code wheels A E D Code Wheel X - 5 X 1 Mounting Type M Mylar CW 8 L Line Driver 9 Standard External Ear Mounting Through Hole 0 5 None 8.9mm (0.35 inch) X - X Y Resolution (CPR) Y Shaft Diameter 01 2mm B 1000 02 3mm J L 1024 1250 03 04 1/8 in. 5/32 in. T U 2000 2048 05 06 3/16 in. 1/4 in. W N R Z 2500 4000 4096 5000 11 12 13 14 4mm 6mm 8mm 5mm DISCLAIMER: Avago’s products and software are not specifically designed, manufactured or authorized for sale as parts, components or assemblies for the planning, construction, maintenance or direct operation of a nuclear facility or for use in medical devices or applications. Customer is solely responsible, and waives all rights to make claims against Avago or its suppliers, for all loss, damage, expense or liability in connection with such use. For product information and a complete list of distributors, please go to our web site: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2015 Avago Technologies. All rights reserved. AV02-4926EN - June 4, 2015