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DM7 Programmable Resolver Decoder
SINGLE-TURN, SINGLE-CHANNEL
The most versatile resolver-to-digital decoder
Fully absolute position, no loss of position under any situation
Incredibly small size; only 9 sq.in. panel space
Full-scale programmable zero offset for easy set-up
Programmable resolution; 20-4096 counts-per-turn
Front panel selectable output formats: BCD, Binary, or Gray code
Built-in PC sync circuit permits interface to any PLC
Built-in digital tach and over-, under-speed switch
Direction output and zero marker pulse
Self-diagnostics with fault output
Optically isolated outputs
Highly noise immune ratiometric tracking converter
Extremely rugged and reliable resolver as position transducer
The DM7 Decoder
Principle of Operation
The DM7 series resolver-to-digital decoder provides an absolute encoder system in conjunction with any one of AVG Automation's single-turn resolvers. As shown in the diagram on the next page, the resolver rotor winding is excited from a reference sinusoidal generator inside the DM7 unit. The analog output signals from the resolver stator windings, after signal conditioning in the buffer amplifiers, are decoded to digi-tal format in the ratiometric-tracking converter. The zero-off-set entered from the front panel keypad is continuously added to this digital value. The offset digital data is scaled, converted to the digital format as selected from the keypad and displayed on the front panel of the unit. The position information is also made available in a parallel format for external devices, such as PLC remote displays, etc.
+ Other Features
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