Standards and certifications
310
Panel PC 2100 user's manual V1.17
5.2.7.6 USB connection with the Automation Panel 1000
5.2.7.6.1 Introduction
The information below describes the use of USB peripheral devices on the front USB interface of the B&R Automa-
tion Panel 1000 in Hazardous locations Class I, Division 2, Groups A, B, C and D.
Danger!
DANGER OF EXPLOSION
•
Before installation or use in a potentially explosive atmosphere, the explosion protection class
of the device must be checked per ANSI/ISA 12.12.01 and CSA C22.2 No. 213.
•
The following must be used to switch on/off B&R devices installed in a potentially explosive
atmosphere:
°
A switch outside the potentially explosive atmosphere, or
°
A switch that is certified in accordance with the hazardous location class and division
for "tube use"
•
As long as the electrical circuit is activated, cables or wires are not permitted to be connected or
disconnected unless the area is known to be free of ignitable concentrations of vapors, gases
and other flammable or combustible materials. This applies to all connections and switches.
This includes electrical, ground and network connections as well as series and parallel con-
nections.
•
Unshielded/Ungrounded cables are not permitted to be used in potentially explosive atmos-
pheres under any circumstances.
•
Only configurations with nonincendive USB devices are permitted to be used.
•
Doors and openings on housings must remain closed. This prevents the accumulation of for-
eign bodies within the workstation.
Failure to follow these instructions can result in death, serious injury or damage to property!
5.2.7.6.2 Description
Nonincendive devices (keyboards, mouse) are certified for use on the front USB interface of the B&R Automation
Panel 1000 (connected device) and are permitted to be connected and disconnected during operation. In addition
to the nonincendive property, devices that can be connected to the front USB interface must meet the following
criteria.
1. Vcc
2. D-
3. D+
4. GND
Shield. GND
Class I, Division 2
Group A, B, C, D
or non-hazardous location
Class I, Division 2
Group A, B, C, D
USB cables
Nonincendive device
with field wiring
USB peripheral
devices
Front USB pinout
Connected device
Front USB interface (USB 2.0):
No-load voltage [V
oc
]
5.04 V
Short circuit current [I
sc
]
1170 mA
Associated capacitance [C
a
]
20 μF
Associated inductance [L
a
]
16.8 μH
Table 276: Nonincendive electrical circuit parameters for the front USB interface
