10.5.3 VAU 01.1U – Connecting the Panel PC or Control Cabinet PC to
XUSB In
General Information
While connecting a UPS to a USB interface at a PC, the information on the exis-
tence and the state of the UPS are communicated to the PC via a USB connec-
tion. The communication is established via a virtual COM interface provided by
the USB interface.
The electrical properties of the XUSB In interface correspond to the properties
of the standard USB interface.
The driver is part of the operating system of the panel PC or control
cabinet PC; therefore no additional driver installation is required.
USB cable
Permitted cable lengths
Up to 3 m (maximum length)
Cable type:
Data line
+5V voltage supply
Shielded, min. cross-section 2 x 0.08 mm
2
(AWG28)
2 x 0.25 mm
2
(AWG24)
Maximum current consumption
200 mA
Tab. 10-6: USB cable, requirements
Malfunctions
Malfunctions due to insufficient shielding!
NOTICE
Use only shielded cables and metallic or conductive connector/coupling covers
with large-area shield support.
Malfunctions due to too long cables!
NOTICE
Use short USB cables, if possible.
Use only one of the cables listed in
chapter 5.2 "USB Cable with Increased
Noise Immunity for VAU 01.1U" on page 8
.
These cables feature additional shield connectors which are connected to the
functional earth ground connections of the control and of the UPS. Additionally,
the UPS features a ferrite clamp between the USB connection and the bonding
clip of the UPS.
Bosch Rexroth AG
Assembly, Disassembly and Electrical Installation
VAU 01.1
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DOK-SUPPL*-VAU*01.1X**-IT02-EN-P