Sensoray 417 Manual do Utilizador descarregar pdf (Página 30)

Chapter

Sensor Connections

Connectors

Analog input signals connect to the 417 board by means of header connectors P1 and P2. Header

P1 provides connections to channels 0-15 and P2 to channels 16-31 as shown in the table below:

Since all 32 channels have true differential inputs, each channel must have both a positive and neg-

ative connection, shown as “+” and “-”, respectively, under Input Polarity in the above table. Head-

ers P1 and P2 also make available ISAbus ground (sometimes referred to as the “shield”) at pins

33, 34, and 38-40, +12V at pin 36, and a thermocouple reference sensor input at pin 37.

Live Connections—Model 417 circuitry is designed to permit modifications to sensor connec-

tions without disturbing system operation. Sensors may be electrically connected and disconnected

from the coprocessor without physically removing the 417 board or electrically removing power

from the ISAbus.

Table 12: Connector pinouts for headers P1 and P2

Connector P1 Connector P2

Channel

Input Polarity

Pin Number

TB Marking

Channel

Input Polarity

Pin Number

TB Marking

Channel

Input Polarity

Pin Number

TB Marking

Channel

Input Polarity

Pin Number

TB Marking

0 + 2 V+0 8 + 1 I+0 16 + 2 V+0 24 + 1 I+0

- 4 V-0 - 3 I-0 - 4 V-0 - 3 I-0

1 + 6 V+1 9 + 5 I+1 17 + 6 V+1 25 + 5 I+1

- 8 V-1 - 7 I-1 - 8 V-1 - 7 I-1

2 + 10 V+2 10 + 9 I+2 18 + 10 V+2 26 + 9 I+2

- 12 V-2 - 11 I-2 - 12 V-2 - 11 I-2

3 + 14 V+3 11 + 13 I+3 19 + 14 V+3 27 + 13 I+3

- 16 V-3 - 15 I-3 - 16 V-3 - 15 I-3

4 + 18 V+4 12 + 17 I+4 20 + 18 V+4 28 + 17 I+4

- 20 V-4 - 19 I-4 - 20 V-4 - 19 I-4

5 + 22 V+5 13 + 21 I+5 21 + 22 V+5 29 + 21 I+5

- 24 V-5 - 23 I-5 - 24 V-5 - 23 I-5

6 + 26 V+6 14 + 25 I+6 22 + 26 V+6 30 + 25 I+6

- 28 V-6 - 27 I-6 - 28 V-6 - 27 I-6

7 + 30 V+7 15 + 29 I+7 23 + 30 V+7 31 + 29 I+7

- 32 V-7 - 31 I-7 - 32 V-7 - 31 I-7

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 36 37

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