Rockwell Automation 1772-LV,D17726.6.1 A and I MNL MINI-PLC-2/15 PROCESSO - Manual (Page 66)

System Start-Up
Chapter 4
4Ć6
CAUTION: If an I/O Module is to be replaced, System power
and I/O power must be removed. Failure to remove power could
result in damage to the Module and/or unexpected machine
motion.
Perform steps 2 and 3 until all inputs have been tested.
TESTING OUTPUTS
After all inputs have been tested, the outputs should be checked next. Some
output devices are disconnected and must remain disconnected during this
checkout procedure.
WARNING: Machine motion during this procedure can cause
injury to personnel or damage to equipment. Disconnect any
device that might cause machine motion to occur when
energized.
Perform the following steps to the outputs:
1. Turn the Processor’s Mode Select Switch to the RUN/PROG position.
2. Press [SEARCH][5][3] for bit manipulation.
3. Enter the word address of the Output Module to be tested. The state of
each output in the selected Module Group will be displayed.
4. Use the [–>] and [<–] keys to cursor over to the output to be tested. Press
[1] to turn the output ON. Press [0] to turn the output OFF. Observe the
corresponding Output Module indicator and the output device to verify the
proper output action occurs. If the Output Module indicator operates
correctly but the output device does not, either the output device or its
wiring is faulty. if neither operates correctly, the Output Module is most
likely at fault. First try reseating the Output Module in the I/O chassis. If
it still malfunctions, replace the Module as described in Section 5.6.2.
CAUTION: If an I/O Module is to be replaced, System power
and I/O power must be removed. Failure to remove power could
result in damage to the Module and/or unexpected machine
motion.
5. Perform steps 3 and 4 for all outputs except those that cause machine
motion.