OPE2275H-128

Incremental Hollow Shaft Encoder OPE1275H Single Channel (Tachometer) OPE2275H Dual Channel Features: • O.D. = 28mm [1.10”] • Motor Shaft Diameter 2 mm [0.079”] • Motor Shaft length 3.8 mm [0.150”] minimum • Pulses per revolution 256 maximum • • Analog Output 100 - 5,000 RPM Description: The OPE1275H and OPE2275H are designed for small shafted motors with a shaft diameter of 2 mm [0.079”] and a minimum length of 3.8 mm [0.150”]. The OPE1275H provides a single channel analog output for speed of rotation while the OPE2275H provides a dual channel analog output for speed and direction of rotation. The output of the OPE1275H provides a rise and fall pulse providing the designer two slopes for each pulse doubling the count capability. The OPE2275H provides quadrature rise and fall pulse patterns providing the design engineer 4 times the pulse per revolution count. The OPE1275H and OPE2275H are very easy to assemble on your motor shaft using a #1 Phillips screwdriver. Power requirements are 5 volts ± .5 volts. Electrical connection is achieved with a 4-pin Molex 53048-0410 connector providing V+, Ground and Output pins. The mating connector is a 4-pin Molex 51021-0400 (Terminal pin 50058 or 50079) or equivalent. Mounting of the hollow shaft version of the OPE1275 and OPE2275 is achieved with a stick-on transfer adhesive pre-applied to the back of the housing. Just peel off the protective base and press the encoder to your motor. Frequency response is from DC to 25 kHz providing a maximum of 256 cycles per revolution (CPR) This product is designed for general encoding for low-speed applications. Applications: • Printer motors • Machine automation • Machine safety OPTEK Product Encoder Channels: 1 = Single channel 2 = Dual Channel Ordering Information OPE X 275 H - ZZZ Resolution per revolution: 128 holes per revolution 256 holes per revolution Shaft Configuration: H = Hollow Shaft Motor Diameter- 27.5mm RoHS OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com Issue A .4 10/09 Page 1 of 4 Incremental Hollow Shaft Encoder OPE1275H Single Channel (Tachometer) OPE2275H Dual Channel OPE1275H OPE2275H PIN #1 Pin Out 1 2 3 4 VCC CH A CH B GND OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue A.4 10/09 Page 2 of 4 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com Incremental Hollow Shaft Encoder OPE1275H Single Channel (Tachometer) OPE2275H Dual Channel Absolute Maximum Ratings (TA=25°C unless otherwise noted) Units Maximum -40o C to +85o Storage Temperature Range o Operating Temperature Range 0 C to +85 Power Supply Voltage VCC Power Dissipation C o C 4.5 to 5.5 VDC 250 mW (2) Vibration (5 Hz to 2 kHz) 20 Shaft Axial Play ± 0.51 mm [0.02”] Off-Axis Mounting Tolerance 0.254 mm [0.01”] Acceleration g rad/sec2 250,000 Mechanical Specifications: Units Dimensions Moment of Inertia 6.48 X 10 Shaft Length -5 OZ-IN-S2 0.3 to 0.7 Inches Electrical Characteristics (TA = 25°C unless otherwise noted — for reference only) SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS VCC Supply Voltage 4.5 5.0 5.5 V ICC Supply Current - 21 27 mA VOH High Level Output Voltage Vcc-0.5 - - V IC = 100 µA VOL Low Level Output Voltage - - 0.4 V IC = 20 mA TR Rise Time - 500 - ns 10% to 90%, VCC = 5.0 volts TF Fall Time - 100 - ns 10% to 90%, VCC = 5.0 volts FR Frequency Response - - 60 kHz 0.10 - - inch - - 100 rev/sec H.S. Rotation Hole Size Maximum speed of rotation with 1024 holes per rotation VCC = 5.0 volts Encoding Characteristics: SE Symmetry Error 0 16 75 QE Quadrature Error—OPE2275H only 0 12 60 °e Notes: 1. All parameters measured using pulse technique, Vcc = 5.0 volts and TA = 25°C. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com Issue A .4 10/09 Page 3 of 4 Incremental Hollow Shaft Encoder OPE1275H Single Channel (Tachometer) OPE2275H Dual Channel Timing Diagram: Hollow Shaft Assembly Instructions: Timing Definitions: PPR = Pulses Per Revolution Electrical Degree (°e) = 1/360th of 1 cycle Cycle = 360 electrical degrees (°e) Symmetry = Relationship between X & Y in electrical degrees (°e). Position Error = The difference between the actual shaft position and the position indicated by the encoder cycle count. Quadrature: The lead or lag difference between channels “A” and “B” in electrical degrees (normally 90°e) Cycle Error = The difference between the actual shaft rotational position and the cycle count rotational position. Rise Time = Time required to switch between 10% and 90% of the highest to lowest signal levels. Fall Time = Time required to switch between 90% and 10% of the highest to lowest signal levels. #2 screws Reflective Lid Encoder Wheel Assembly Aperture Plate Base Unit Adhesive Cover Make sure the kit has all required parts: • 1 each Base Unit • 1 each Base Unit Alignment Tool • 1 each Aperture Plate • 1 each Encoder Wheel Assembly • 1 each Wheel Assembly Alignment Tool • 1 each Reflective Lid • 4 each #2-56 self tapping screws 1. Peal the protective covering from the adhesive on the back of the Base Unit. 2. To center the Base unit, carefully slide the Base Unit over the flange on the motor and press firmly. 3. Place the Aperture Plate on the Base Unit. 4. Slide the Encoder Wheel Assembly over the motor shaft until it almost touches the Aperture Plate. 5. Carefully place the Reflective Lid on the encoder (rotate as necessary to align) and attach with 4 #2 self tapping screws (provided). 6. Connect the electrical interface to the encoder. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue A.4 10/09 Page 4 of 4 OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com