SAB-Q2
Linear sensor to ABZ quadrature converter
Overview
The SAB-Q2 converts data from two or four Start/Stop, PWM, or SSI magnetostrictive transducers or encoders to differential ABZ quadrature.
Description
The SAB-Q2 module converts change in two channels of magnetostrictive transducer position to the ABZ quadrature format. The conversion is implemented with a micro-controller and EPLD allowing a wide range of flexibility and high-speed output. The module continually interrogates the magnetostrictive transducers for position and if there is a change in the position, the SAB-Q2 outputs the correct number of state changes on the AB quadrature lines. If the transducer position is the marker position, the Z quadrature output is activated. Quadrature changes are output at a rate proportional to the speed of motion. Each channel has a send all input that causes the absolute position of the transducer to be output via the quadrature lines. Each channel has a transducer OK output to signal the proper functioning of the transducer. A setup mode allows easy setup of the gradient, recirculations, offsets, marker positions, and transducer lengths via RS232.
The SAB-Q2 can be used as a replacement for the Rockwell AEC-216 Absolute Encoder Converter. Please contact us for application support.
Features
- Quadrature output rate is proportional to sensor speed
- Two or four channels of 24 bit magnetostrictive transducer measurement
- 56 MHz oscillator for 0.001 inch resolution with 2 recirculations
- Two or four channels of 5-volt differential A, B and Z outputs
- Software selectable transducer gradient, offset, marker and length
- Two electrically isolated DC inputs for Send All (12-24 VDC)
Specifications
Parameter | Units | Min | Typ | Max | Notes |
---|---|---|---|---|---|
Quadrature Clock Speed | Quadrature States/Second | — | — | 112,000 | Maximum output rate on each channel |
Update Period | µS | 500 | — | 14000 | Automatically calculated based on transducer length and recirculations |
Sensor Support | Inches | — | — | 165 | Max 2 micron SSI Sensor length |
Sensor Support | Inches | — | — | 412 | Max 5 micron SSI Sensor length |
Supply Power | V | 7.5 | 24 | 26 | at 300mA (420 ma with 2 transducers attached) |
Quantity | — | — | — | — | Model SAB-Q2-ANA analog outputs: · Resolution is 16-bit (0.3 mV) with –10.0V to +10.0V output range · Output current +/-5mA |
Downloads
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User Manual
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Quick Start