Allen-Bradley 2715-15CA, User Manual

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Rockwell Automation Publication 2715-UM001A-EN-P - July 2015 95
Troubleshooting Chapter 7
Terminal Does Not Start Up If the terminal does not start up normally, check the table for possible causes.
Terminal Restarts
Intermittently If the terminal restarts intermittently, check the table for possible causes.
Touch Screen Issues If the touch screen does not operate or respond correctly to touches with a finger
or stylus, check the table for possible causes.
Table 24 - Terminal Does Not Start Up Properly
Check For What to Do See
Insufficient power Make sure device is receiving adequate power:
• Check the DC power requirements.
• Check AC power requirements.
page 32
page 33
Improper power
wiring Verify the power wiring is correct:
• Check the wiring specifications.
• Check the DC power wiring.
• Check the AC power wiring.
page 31
page 32
page 33
Status indicators Check the status indicators during startup. page 90
Stalled progress
indicator If a terminal stalls at the progress indicator and does not load an
application or configuration screens, restore the factory defaults. page 99
Stuck keys Check for stuck keys on terminals with a keypad and function keys. A
stuck key can prevent the terminal from starting up properly.
Does an object
touch the display Verify that nothing is pressing against the display or that you are not
touching the display during startup.
Table 25 - Terminal Restarts Intermittently
Check For What to Do See
Improper power
wiring Verify the power wiring is correct:
• Check the wiring specifications.
• Check the DC power wiring.
• Check the AC power wiring.
page 31
page 32
page 33
Over-temperature
conditions Make sure the processor is not exceeding temperatures for normal
terminal operations:
• Check the processor temperature.
• Check for adequate clearances around the terminal in the panel.
• Check for proper operating temperature.
page 59
page 21
page 59
Table 26 - Touch Screen Not Responding
Check For What to Do See
Improper calibration Check for activation points offset from touch points.
Calibrate the touch screen. page 55
Non-functional touch
screen Check the touch screen for damage, such as cuts or excessive wear. If there is
damage, replace the terminal.
Multiple input
elements touched Application screens contain graphic input elements that are configured in the
View Designer application. When touched, these elements perform operations
in a predictable manner. For example, an input element is configured to
navigate to a specific screen in the application or start a motor when touched.
Multiple operations cannot be conducted simultaneously. Doing so results in
an unintended operation.
• Do not touch multiple input element at one time.
• Do not rest a hand or multiple fingers on the display.