Rockwell-automation 61C542 Voltage Input module Manual de usuario descargar pdf (Pagina 50)

5Ć2

DANGER

THIS EQUIPMENT IS AT LINE VOLTAGE WHEN AĆC POWER IS CONNECTED.

DISCONNECT AND LOCK OUT ALL UNGROUNDED CONDUCTORS OF THE AĆC

POWER LINE. FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN

SEVERE BODILY INJURY OR LOSS OF LIFE.

Turn off power to the module.

If an out of range condition exists, check for an open or

shorted wire between the terminal board assembly and

the transmitter.

Turn on power to the module.

Step 5. Verify that the user application program is correct.

For DCS 5000/AutoMax systems, verify that the application

program that references the symbolic names associated

with the module has declared those names COMMON in

the application tasks.

Verify that the symbolic name in question is being

referenced in the application program. This can be done

indirectly by monitoring the symbolic name with the

MONITOR function in the ReSource Software.

For both DCS 5000/AutoMax and AutoMate systems,

verify that the application program is executing fast

enough to catch all of the input changes.

Step 6. Verify that the hardware is working correctly.

DANGER

THIS EQUIPMENT IS AT LINE VOLTAGE WHEN AĆC POWER IS CONNECTED.

DISCONNECT AND LOCK OUT ALL UNGROUNDED CONDUCTORS OF THE AĆC

POWER LINE. FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN

SEVERE BODILY INJURY OR LOSS OF LIFE.

Verify hardware functionality by systematically swapping

out modules in the rack. Make certain power is off before

removing any module from the rack. After each swap, if

the problem is not corrected, replace the original module

before swapping out the next one.

5.2 The OK" LED is Off

Problem: The OK" LED on the Voltage Input module faceplate is off.

This LED is on when the module passes its powerĆup diagnostics

and is operating properly. The LED is off when the module fails its

powerĆup diagnostics, when a watchdog timeout error occurs, or

when the calibration voltage is out of range. If the LED remains off

after system powerĆup, replace the module as described in

section 3.3.

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Rockwell-automation 61C542 Voltage Input module Manual de usuario Pagina 50