E25 INCREMENTAL OPTICAL ENCODER Introduction The E25 has been designed as a light duty encoder for applications such as robotics, precision computer peripherals and OEM motors and controls. It is designed with an integrated mounting ring and shaft coupling. The integrated mounting ring and shaft coupling allow for simplified installation and a low overall profile when the unit is mounted on a motor. These self-contained mounting and coupling features can result in reduced interface cost. SPECIFICATIONS Electrical Code Incremental Output Format 2 channels in quadrature, 1/2 cycle index gated with negative B channel Cycles Per Shaft Turn 1 to 28,800 For resolutions above 3,600 consult factory for interpolation options Supply Voltage 5 to 28 VDC available Current Requirements 100 mA typical +output load, 250 mA (max) Voltage/Output (see note 5) 28V/V: Line Driver, 528 VDC in, Vout = Vin 28V/5: Line Driver, 528 VDC in, Vout = 5 VDC 28V/OC: Open Collector, 528 VDC in, OCout Reverse, overvoltage and output short circuit (see note 5) Protection Level Frequency Response 100 kHz, up to 800 KHz with interpolation option (see note 7) Output Terminations (See Table 1 at the end of the datasheet) Note Consult factory for other electrical options Page 1 www.sensata.com Copyright 2018 Sensata Technologies, Inc. SPECIFICATIONS (CONTINUED) Mechanical Coupling Bore 1/4 and 3/8 nominal, standard Starting Torque at 25C 0.07 in-oz typical shielded 2.0 in-oz typical SB Bearings Class ABEC 5 Coupling Material Aluminum with protective finish Bearing Housing Die cast aluminum with protective finish Cover Drawn aluminum, 0.060 wall, protective finish standard. Die cast aluminum with protective finish for EM, SM, ECS and SCS terminations 9 Bearing Life 1 X 10 revs (6,700 hrs at 2500 RPM) at rated load Maximum RPM 10,000 Weight 13 oz., typical Enclosure Rating NEMA 2 (IP43) Environmental Temperature Operating, 0 to 70 C extended temperature testing available (see note 8) Storage, -25 to 90C unless extended temperature option called out. Shock 50 gs for 11 msec duration Vibration 5 to 2000 Hz 20 gs Humidity 98% RH without condensation NOTES & TABLES: All notes and tables referred to in the text can be found at the end of the datasheet. COUPLING PERFORMANCE DATA High-Performance Coupling Coupling Data Standard Coupling Type 4H Type 4R Type 6R Coupling Bore .250/.251 .2500/.2505 .3750/.3755 Dimension A1(E25BA only) .16 .08 .08 Dimension A2 (E25BB & BC) .10 .02 .02 Axial Motion (Inches Max.) .010 .020 .030 Parallel Offset (Inches Max.) .010 .010 .010 Angular Misalignment (Degrees Max.) 2 2 2 Torsional Spring Rate (arc-sec/oz-in) 52 15 21 Installation Note: To prevent damage, the coupling must be operated without excessive axial compression or extension. For proper installation, rotate the coupling on the mating shaft prior to tightening the set screws. Page 2 www.sensata.com Copyright 2018 Sensata Technologies, Inc.