HBM espressoDAQ DQ401 Bedienungsanleitung Seite 27

Starting up
Overcurrent performance
A maximum of 4 modules can be connected to the USB HUB.
If the USB HUB detects an overcurrent, this is indicated by the relevant LED
on the USB HUB (1 to 4) glowing red.
Fig. 5.7: Overcurrent detection
Possible cause and remedy:
 A faulty module is connected
remove the faulty module, remove the USB HUB and then reconnect it
 Several modules are connected, but there is no power supply
connect the power supply and connect to 230 V mains power
Resetting the HUB
1. Disconnect the problem module from the USB HUB
2. Should there be no power supply, connect it to the USB HUB, and connect
to 230 V mains power
3. Briefly break the connection between the PC and the USB HUB
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