Accu-Coder Model 25T Thru-Bore, Or Model 25H Hollow Bore (Blind)


Features

• 2.5" Opto-ASIC Encoder with a Low Profile (2.0”)
• Bore Sizes Ranging From 0.625” to 1.125”
• Single Replacement Solution For 2.0" to 3.5" Encoders
• Resolutions to 10,000 CPR; Frequencies to 1 MHz
• Versatile Flexible Mounting Options
• RoHS Compliant

Introducing the next generation of high performance encoders - the Model 25T. As contemporary as its appearance, the Model 25T features the largest thru-bore available in a 2.5” encoder, mounting directly on shafts as large as 1.125" (28 mm). With resolutions of up to 10,000 CPR, and Frequencies of up to 1MHz this industrial strength encoder is perfect for fast revving motors. The 25T features the next generation of Encoder Products Company's proprietary Opto-ASIC sensor which provides superior accuracy and precision counts. The injection molded housing, made from EPC's custom blend of nylon composites, is grooved with "cooling fins" and can take the extreme heat of the motion control industry. With sealing available of up to IP66 and many new rugged flexible mounting options, the Model 25T can perform in demanding industrial environments. This revolutionary new 2.5” encoder truly is unlike any other.

Common Applications
Motor-Mounted Feedback and Vector Control, Specialty Machines, Robotics, Web Process Control, Paper and Printing, High Power Motors

Model 25T/HSpecifications
Electrical
Input Voltage.............4.75 to 28 VDC max for temperatures up to 85° C 4.75 to 24 VDC max for temperatures between 85° and 105° C

Input Current............. 100 mA max with no output load

Output Format...........Incremental- Two square waves in quadrature with channel A leading B for clockwise shaft rotation, as viewed from the mounting face. See Waveform Diagram.

Output Types.............Open Collector- 20 mA max per channel Pull Up - Open Collector with 2.2K ohm resistor, 20 mA max per channel Push-Pull- 20 mA max per channel Line Driver- 20 mA max per channel (Meets RS 422 at 5 VDC supply)

Index..........................Once per revolution. 361 to 10,000 CPR: Gated to output A 1 to 360 CPR: Ungated See Waveform Diagram.

Max Frequency..........250 kHz for 1 to 2500 CPR 500 kHz for 2501 to 5000 CPR 1 MHz for 5001 to 10,000 CPR

CE Testing.................Emissions tested per EN61000-6-3:2001 as applicable. Immunity tested per EN6100-6-2: 2005 as applicable

Min. Edge Sep...........45° electrical min, 63° electrical or better typical

Rise Time..................Less than 1 microsecond

Accuracy....................Within 0.1° mechanical from one cycle to any other cycle, or 6 arc minutes.

Mechanical
Max Shaft Speed.......6000 RPM, 8000 RPM intermittent 4000 RPM for IP66 seal option

Bore Size...................0.250" through 1.125"6 mm through 28 mm

Bore Tolerance..........-0.0000"/+0.0008" User Shaft Tolerances

Radial Runout.......0.005" max

Axial Endplay.........±0.050" max

Starting Torque..........IP50 sealing: 1.0 oz-in typical IP66 sealing: 4.0 oz-in typical Note: Add 1.0 oz-in typical for -20° C operation

Moment of Inertia......7.6 x 10-4 oz-in-sec2

Max Acceleration.......1x105 rad/sec2

Electrical Conn..........6-, 7-, or 10-pin MS Style, 5- or 8-pin M12 (12 mm), 10-pin Bayonet or gland with 24 inches of cable (foil and braid shield, 24 AWG conductors)

Housing.....................Proprietary nylon composite

Mounting....................2.25" to 2.75" B.C. 3-point flex mount 3.50" to 5.90" B.C. (4.5" C-face) tether arm kit, 3.50" to 8.10" B.C. (8.5" C-face) tether arm kit and 2.72" to 3.42" B.C. (Block & Pin) tether arm kit. See mechanical drawing for dimensions

Weight........................8 oz typical

Environmental
Operating Temp.........-20° to 85° C for standard models -20° to 105° C for high temperature option

Storage Temp............-20° to +85° C

Humidity.....................98% RH non-condensing

Vibration.....................20 g @ 5 to 2000 Hz

Shock.........................80 g @ 11 ms duration

Sealing.......................IP50, IP66 with shaft seals at both ends

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