Troubleshooting
CP39xx
29
6 Troubleshooting
Note
Pixel errors
Pixel errors in the TFT display are production-caused and represent no complaint-
reason!
Note
Anomalies of the Touchscreen
Anomalies of the touchscreen sensor are production-caused and represent no
complaint-reason!
Fault
Cause
Measures
The Control Panel shows no
function
No power supply to the Control
Panel/ Industrial PC
Cable not connected
Check power supply cable
1. Correctly connect cable
2. Call Beckhoff Service
Computer boots, software starts,
but control does not operate
correctly
Cause of the fault is either in the
software or in parts of the plant
outside the Industrial PC
Call the manufacturer of the
machine or the software
Malfunction of the touchscreen
Bad or missing ground connection
of the device
Establish ground connection
Bad or missing ground connection
of the user
User must stand on the floor
with ordinary shoes
USB error while TwinCAT access
via USB
Cycle time in TwinCAT is set on
10 ms (standard)
Increase the cycle time up to
50 ms till 80 ms
The Control Panel functions only
partially or only part of the time, e.g.
no or dark picture
Faulty backlight in the display
Defective components in the
Control Panel
Call Beckhoff Service
Call Beckhoff Service
Summary of Contents for CP39 -0000 Series
Page 2: ......
