Rockwell-automation 1771-QB Linear Pos. Uživatelský manuál stáhnout pdf (Strana 87)

Formatting Module Data (WRITES)

Chapter 7

78

Figure 7.5

Transducer

Calibration Constant W

ords

50028

Transducer calibration constant,

BCD or binary

99.9999 microsec/inch or

9.99999 microsec/mm max

Least significant 4 digits

Most significant digits

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

00000000

ZeroPosition Offset (words 7, 8 and 36, 37)

The zero position offset words define the origin of the coordinate system.

Zero-position can be located within or outside the transducer’s active range.

This allows positions to be measured relative to locations outside the range of

axis motion. The software travel limits and setpoint positions must reside within

the transducer’s active range.

Important: The active range of the transducer is halved by each increase in the

number of circulations of the digital interface box.

Figure 7.6

ZeroPosition

Offset

50060

Zeroposition offset

Transducer

Head

Transducer Rod

Zero

position

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 ... 225 226

Žádné komentáře

Rockwell-automation 1771-QB Linear Pos. Uživatelský manuál Strana 87