Rockwell-automation 1753-IB16 GuardPLC Digital Input Module Installati Uživatelský manuál stáhnout pdf (Strana 7)

GuardPLC Digital Input Module 7

Rockwell Automation Publication 1753-IN004C-EN-P - June 2010

If devices require 24V DC to operate and use the same power source as the module, then wire the

outputs of the device directly to inputs on the module.

Devices with their own dedicated power supply can also be connected. Connect the reference

pole of the external power supply to the L- reference pole of the input.

The safe state of an input is indicated by a 0 signal being passed to the user program. If the test

routines detect a fault in the digital inputs, a 0 signal is processed in the user program for the

defective channel. When a fault occurs, the inputs are switched off (0) and the FAULT indicator

is activated.

Follow the closed-circuit principle for external wiring when connecting sensors. To create a safe

state in the event of a fault, the input signals revert to the de-energized state (0). Although the

external line is not monitored, a wire break is interpreted as a safe (0) signal.

COM

24V DC

Power

Supply

COM

Light Curtain

(or any Safety Input)

L-L- L+ L+

24V DC

1LS+ LS+ LS+L-

234

123456

5L-

678 9L-

10 11 12

123456

78 9101112

13 14 15 16 17 18

Connection of Voltage Supply to Input Device

24V DC

Power

Supply

COMCOM

24V DC

Power

Supply

COM

Light Curtain

(or any Safety Input)

L-L- L+ L+

24V DC

1LS+ LS+ LS+L-

234

123456

5L-

678 9L-

10 11 12

123456

78 9101112

13 14 15 16 17 18

Connection of Devices with Dedicated Power Supplies

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

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