Interpolator HR2B and HR2C

Gurley Precision Instruments' HR2B/HR2C High-Resolution Interpolators enhance the resolution rates of 9710 Modular Rotary Encoders or 9717 Modular Linear Encoders by 80 times the discs' or scales' line counts. These components create quadrature square waves, 25 times the line counts. They also deliver 20x square waves. Both the HR2B and HR2C are integrated with quarter-cycle gated indexes, and "watchdog" circuit systems that keep track of encoder analog waveforms. SPECIFICATIONSHR2BHR2CApplicabilityFor use with Gurley Model 9710 and 9717 modular incremental encodersInput signalsComplementary phototransistor current s all channelsInput power+5.0 ± 0.25V @ 125 mA max, excluding transmission l ine termination requirements; cons ultencoder data sheet for encoder power requirementsOutput signalsQuadrature square waves at INT times the line count on the di sc or scale. Index, quarter-cycle-wide gated, islogic high when A & B are high.Watchdog output (FLT) is low when analog encoder waveforms are faulty or deteriorating.Output deviceRS-422 differential line driver all channels (26ET31 or equal)Interpolation factor (INT)201, 2, 5 or 10*Input frequency, max25 kHz100 kHz*Output frequency, maxINT = 20: 500 kHzINT = 01: 100 kHzINT = 02: 150 kHzINT = 05: 300 kHzINT = 10: 500 kHzInterpolation error, max±0.1 quantum. This is the maximum error seen at t he output square wave transitions; doesnot include encoder error (see specific encoder data s heet), nor quantization error, which isalways ±½ quantum.Operating temperature0° to 70°C (32° to 158°F)Storage