Beckhoff CP29 Series, Manual

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Troubleshooting
CP29xx 40 Version: 3.1
7 Troubleshooting
Table 17: Troubleshooting
Fault Cause Measures
No Control Panel function No power supply to Control Panel
Cable not connected
CP29xx-0010: No power supply of
CU880x
Check the cable for the power
supply
1. Correctly connect the cable
2. Call Beckhoff Service
Check power supply of CU880x
No or infrequent reaction of the multi
touch screen Poor or missing functional earth of
the device
Poor or missing ground connection of
the user
Check equipotential bonding
and grounding measures
Touch control panel frame and
check touch function at the
same time
USB error during access with
TwinCAT via USB Cycle time in TwinCAT set to 10 ms
(standard) Increase the cycle time to
between 50 ms and 80 ms
No picture/no backlight Connection problem with cabling CP29xx-0000: Check DVI cable
connection
CP29xx-0010:
1. Check cable connections
2. Check CU880x diagnose
LEDs
3. Check power supply
Beckhoff recommends using available Beckhoff connection cables and connection kits.