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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.


Shaft Diameter 3/8” (1/2”as 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 25°C 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)
Bearing Life 2 X 108 revs (1300 hrs at 2500 RPM) at rated load 1 X 1010 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” shaft—consult with factory
Moment of Inertia 4.1 X 10-4 oz-in-sec2; 5.2 X 10-4 oz-in-sec2 with 1/2” shaft
Weight 13 oz typical, 14.5 oz typical with 1/2” shaft
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 5–28 VDC
Current Requirements 120 mA typical
Output Formats Parallel: Gray Code, Natural Binary and Binary Coded Decimal;
Serial: Serial Synchronous Interface (SSI) compatible; Analog: 4–20 mA, 0–10V
Voltage/Output (see note 3)
28V/V: Line Driver, 5–28 VDC in, Vout = Vin
28V/5: Line Driver, 5–28 VDC in, Vout = 5 VDC
28V/OC: Open Collector, 5–28 VDC in OCout
SSI: 5–28 VDC In/5Vout
Protection Level Reverse, over-voltage 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
CE EN 55011 and EN 61000-6-2

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