Power Supply Of The Te 6Xx Keyboard Unit - HEIDENHAIN iTNC 530 HSCI Service Manual

18.12 Power supply of the TE 6xx keyboard unit

Device powering the TE 6xx
(alternatives)
Further information and layout of USB
--> See "Connector designations and pin layouts" on page 28 – 453.
Supply voltage:
Errors
Troubleshooting
Figure: USB connectors type A and B on the rear side of the TE 630
18 – 270
MC 6222
BF 250
Note
The TE 6xx features "power distribution switches."
These are electronic fuses that separate USB devices that draw too much current from
the TE 6xx.
Keystrokes are not transmitted.
The connected USB device cannot be addressed.
Try USB devices with lower current consumption.
Note
If USB components that are connected to the free USB connector on the TE 6xx require more than
0.1 A, a separate power supply becomes necessary for these components. One possibility is the
USB hub fromHEIDENHAIN.
Disconnect the USB devices from the USB connector type A on the TE 6xx.
Connector for TE 6xx
power supply
USB type B
+5 Vdc
Devices and outputs powered by
TE 6xx
USB devices
at USB connector type A
HEIDENHAIN Service Manual iTNC 530 HSCI