Troubleshooting
2021-07-09 67
8.1 USB 2.0
CPU Unit:
All LEDs off
No connection to CPU Check connection USB cable to
CPU; select another USB port if
necessary.
Remove USB and power cable
and restart CPU. Connect power
cable first.
CON Unit:
LED 3 red
Connection between
CON Unit and CPU Unit
Check interconnect cable and
connectors.
CON Unit:
LED 3 flashing
green / light
blue and
USB 2.0 device
without function
No USB 2.0 device Connect USB 2.0 device.
USB 2.0 device is not
supported
Check installation at the CPU,
also the necessary drivers.
New connection of the USB 2.0
device.
Contact dealer if necessary.
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