Malfunctions due to insufficient shielding!
Use only shielded cables and metallic or conductive connector/coupling covers
with large-area shield support.
9.3 DC 24 V Voltage Supply
Cables with a cross section of 0.75 to 2.5 mm
2
can be connected to the connec-
tion terminal.
Fig. 9-2: Power supply connector X1
Pin Designation Function
1 Low-noise earth, functional earth (FE)
2 0 V Supply voltage 0 V (GND)
3 24 VDC 24 VDC supply voltage
Use a 24 V industrial power supply unit acc. to DIN EN 60742, classification VDE
0551, for example "VAP01.1H-W23-024-010-NN" (parts number R911171065) for
the voltage supply.
9.4 USB Interfaces X9, X10
Two USB host interfaces are available at the operating device.
Operation of the USB ports at the operating device
When using input devices not intended for industrial use (e.g. key-
board, mouse), the operational safety is limited. Input devices inten-
ded for home or office use are also part of the devices not intended
for industrial use.
Connect only USB devices that meet the USB2.0 specification.
For the specification of a suitable cable, refer to "Universal Serial
Bus Specification Rev. 2.0".
The max. cable length is 2.5 m.
VR 21 Bosch Rexroth AG
Interfaces
DOK-SUPPL*-VR21**.01**-IT02-EN-P
11/29
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