Beckhoff PT100 Manual do Utilizador descarregar pdf (Página 10)

PT100 4-fold temperature measurement Beckhoff II/O System

Page 10 of 10 Version : 1.1 Date : 12 March 97

5. Terminal diagram

Plug connection assignment and signal description

CONNECTOR X10

Plug Pin Signal

Description

X10 1 +

+24V supply voltage, control logic/analog

portion

X10 2 -

Ground

X10 3

Unassigned

CONNECTOR X10

Plug Pin Signal Description

X20 1 -

GND for PT100 sensor

X20 2 E1

Input, PT100 sensor pick-off

X20 3 E1

Input, PT100 sensor pick-off

X20 4 I1

Constant-current source for PT100 sensor

(1mA)

X20 5 -

GND for PT100 sensor

X20 6 E2

Input, PT100 sensor pick-off

X20 7 E2

Input, PT100 sensor pick-off

X20 8 I2

Constant-current source for PT100 sensor

(1mA)

X20 9 -

GND for PT100 sensor

X20 10 E3

Input, PT100 sensor pick-off

X20 11 E3

Input, PT100 sensor pick-off

X20 12 I3

Constant-current source for PT100 sensor

(1mA)

X20 13 -

GND for PT100 sensor

X20 14 E4

Input, PT100 sensor pick-off

X20 15 E4

Input, PT100 sensor pick-off

X20 16 I4

Constant-current source for PT100 sensor

(1mA)

Important: A bridge has to be inserted at the input for all of the unused channels. Open

inputs are capable of affecting the values of the other channels.

Example: If a PT100 sensor is not connected to channels 2 and 4, then pin 6 has to be

bridged with pin 7 and pin 14 with pin 15.

1 2 3 4 5 6 7 8 9 10

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