OPE2275S-128

Incremental Shaft Encoder OPE1275S Single Channel (Tachometer) OPE2275S Dual Channel Features: • Body O.D. = 28mm [1.10”] • Shaft Diameter 6.35 mm [0.25”] • 3/8”-32 UNF Thread • Pulses per revolution 256 maximum • • Analog Output 100 - 5,000 RPM Description: The OPE1275S and OPE2275S are designed for small shaft motors. The OPE1275S provides a single channel analog output for speed of rotation while the OPE2275S provides a dual channel analog output for speed and direction of rotation. The output of the OPE1275S provides a rise and fall pulse providing the designer two slopes for each pulse doubling the count capability. The OPE2275S provides quadrature rise and fall pulse patterns providing the design engineer 4 times the pulse per revolution count. 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. Frequency response is from DC to 25 kHz providing a maximum of 256 cycles per revolution (CPR) and 1024 quadrature states per revolution (PPR). This product is designed for general encoding for low-speed applications. The OPE1275S and OPE2275S are fully assembled and ready to be connected to your application. Applications: • Printer motors • Machine automation • Machine safety OPTEK Product Encoder Channels: 1 = Single channel 2 = Dual Channel Motor Diameter- 27.5mm RoHS Ordering Information OPE X 275 S - ZZZ Resolution per revolution: 128 holes per revolution 256 holes per revolution Shaft Configuration: S = Extended Shaft 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 10/09 Page 1 of 4 Incremental Shaft Encoder OPE1275S Single Channel (Tachometer) OPE2275S Dual Channel OPE1275S OPE2275S 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 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 Shaft Encoder OPE1275S Single Channel (Tachometer) OPE2275S 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—OPE2275 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 10/09 Page 3 of 4 Incremental Shaft Encoder OPE1275S Single Channel (Tachometer) OPE2275S Dual Channel Timing Diagram: 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. OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue A 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