Microe 1500V Mercury Manual do Utilizador descarregar pdf (Página 17)

Page 15

SINE+/COSINE+

Analog signal with nominal peak to peak amplitude of 0.8V. The output signal has a source impedance of 1KΩ. This signal is only used to

align the sensor using an oscilloscope and is not suitable for feedback in a control system.

Output Signal Description

-1.2

-0.6

0.6

1.2

Output Signal Description

A+/A- Digital Quadrature output. Signal is a RS-422 compatible square wave.

Pulses are 90° out of phase with B+/B- outputs. Please see below.

B+/B- Digital Quadrature output. Signal is a RS-422 compatible square wave.

Pulses are 90° out of phase with A+/A- outputs. Please see below.

Index Window

The Index Window defines one particular fringe on the grating.

A+

B+

Index+

A+, B+ and Index Window+

0.8V pp ±25%

single ended

Output from 8X encoder shown

1.7 V offset

(nominal)

-0.6

0.6

1.2

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Microe 1500V Mercury Manual do Utilizador Página 17