H25 ABSOLUTE ENCODER Introduction Long considered the industry standard for shafted incremental encoders, the Model H25 is now available in an absolute version with up to 13 Bits of resolution. It incorporates many of the great standard features of the incremental version, including: EMI shielding, 40-lb ABEC 7 bearings, matched thermal coefficients on critical components, and custom optics. This encoder features a 12 or 13 Bit absolute parallel gray code output, a selection line for count direction, and an output latch as standard. Output is standard gray code with options for natural binary or SSI compatible signals. Signals can be provided in either a single-ended multi-voltage line driver (TTL compatible when provided with 5 volts) or as an open- collector style of output. Typical applications include dam gate control, cranes, telescopes, tool changers, and robotics. SPECIFICATIONS Mechanical Shaft Diameter 3/8 (1/2as special feature) Flat On Shaft 3/8 Shaft: 0.80 long X 0.03 deep 1/2 Shaft: 0.80 long X 0.04 deep (1/2 shaft w/flat must be ordered as a special feature) Shaft Loading 3/8 shaft: Up to 40 pounds axial and 35 pounds radial 1/2 shaft: Up to 90 pounds axial and 80 pounds radial Shaft Runout 0.0005 T.I.R. at midpoint regardless of shaft diameter Starting Torque at 25C Without shaft seal 1.0 in-oz (max) With shaft seal 2.5 in-oz (max) 1/2 shaft with shaft seal:3.5 in-oz (max) Bearings Class ABEC 7 standard, ABEC 5 for 1/2 shaft Shaft Material 416 stainless steel Bearing Housing Die cast aluminum with protective finish stainless steel (special feature) Cover Die cast aluminum stainless steel (special feature) 8 10 Bearing Life 2 X 10 revs (1300 hrs at 2500 RPM) at rated load 1 X 10 revs (67,000 hrs at 2500 RPM) at 10% of rated load Maximum RPM 12,000 RPM nominal, 8000 RPM with 1/2 shaft (see Frequency Response, below) 30,000 RPM available on units with 3/8 shaftconsult with factory -4 -4 2 Moment of Inertia 4.1 X 10 oz-in-sec2 5.2 X 10 oz-in-sec with 1/2 shaft Weight 13 oz typical, 14.5 oz typical with 1/2 shaft Page 1 www.sensata.com Copyright 2018 Sensata Technologies, Inc. SPECIFICATIONS (CONTINUED) Electrical Code 12 or 13 bits NB or GC excess gray and BCD available Counts Per Shaft Turn 4096 or 8192 Count Transition Accuracy 1/2 bit maximum Supply Voltage 528 VDC Current Requirements 120 mA typical Output Formats Parallel: Gray Code, Natural Binary and Binary Coded Decimal Serial: Serial Synchronous Interface (SSI) compatible Analog: 420 mA, 010V Voltage/Output (see note 3) 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 SSI: 528 VDC In/5Vout Protection Level Reverse, overvoltage and output short circuit protection Frequency Response 100kHz (1200 RPM for 12-bits, 600 RPM for 13-bits) Output Termination Pinouts see Table 1, page 7 Environmental Enclosure Rating NEMA 4 & 13 (IP 66) when ordered with shaft seal (on units with an MS connector) or a cable gland (on units with cable termination). Temperature Operating, 0 to 70 C extended temperature testing available (see note 5) Storage, -25 to 90 C 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 Environmental MS3112E14-19P, 19pin connector on encoder body, mates to MS3116J14-19S (or equivalent) Notes & Tables: All notes and tables referred to in the text can be found on page 6 and 7. Page 2 www.sensata.com Copyright 2018 Sensata Technologies, Inc.