Troubleshooting, Fault correction, Troubleshooting 17 – BECKHOFF CP66xx User Manual
Page 19: Can be used to determine the measures to be taken

Troubleshooting
Troubleshooting
Pixel errors
Note
Pixel errors in the TFT display are production-caused and represent no
complaint-reason!
Fault correction
Fault Cause Measures
The Control Panel shows no
function when the Industrial PC has
been started
No power supply to Control Panel
Cable not connected
Check power supply cable
1. Correctly connect cable
2. Call Beckhoff Service
The Industrial PC does not boot
fully
Hard disk damaged (e.g. by
switching off while software running)
Setup settings are incorrect
Other cause
1. Boot with boot diskette
2. Start SCANDISK
Check the setup settings
Call Beckhoff Service
Computer boots, software starts,
but control does not operate
correctly
The cause of the error is in the
software or in parts of the
equipment outside the control panel
Call the manufacturer of the
machine or the software
Floppy disk or CD access error
Faulty drive
Call Beckhoff Service
The Control Panel has only partial
function, or only functions some of
the time, for instance the picture is
dark or absent
Defective components in control
panel
Call Beckhoff Service.
USB error while USB access via
TwinCAT
Cycle time in TwinCAT set to 10 ms Change cycle time to 50 ms
CP66xx
17