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Standards and certifications • Certifications
2.4.1.6 USB connection with the Automation Panel 1000
2.4.1.6.1 Introduction
The information below describes the use of USB peripheral devices on the USB interface on the front of the B&R
Automation Panel 1000 in Hazardous Locations Class I, Division 2, Groups A, B, C and D.
Danger!
EXPLOSION HAZARD
• Before installation or use in a potentially explosive area, the explosion protection class of the
device must be verified with regard to ANSI/ISA 12.12.01 and CSA C22.2 N°213.
• One of the following must be used to switch on/off B&R devices installed in a potentially ex-
plosive area:
° A switch located outside the potentially explosive area
° A switch certified for "Tube use" in the applicable Hazardous Location class and division
• Do not connect or disconnect any cables or wires while the circuit is live unless the area is
known to be free of ignitable concentrations of vapors, gases, and other flammable or com-
bustible materials. This applies to all connections and circuits, including electrical, ground and
network connections as well as series and parallel circuits.
• Unshielded/Ungrounded cables are never permitted to be used in potentially explosive areas.
• Only configurations with nonincendive USB devices are permitted to be used.
• Doors and openings on housings must always remain closed to prevent the accumulation of
foreign bodies inside the workstation.
Nonobservance of these instructions can result in material damage, severe injury or death!
2.4.1.6.2 Description
Nonincendive equipment (keyboards, mouse) is certified for use on the front USB interface of the B&R Automation
Panel 1000 (connected device). In addition to being nonincendive, any equipment connected to the front USB
interface must satisfy the following criteria.
Front USB interface (USB 2.0):
No load voltage [V
]
oc
Short circuit current [I
]
sc
Associated capacitance [C
]
a
Associated inductance [L
]
a
The unity concept allows the interconnection of nonincendive devices with connected devices without specifically
verified combinations as the system. For this, the permitted values of V
device must be less than or equal to V
of C
(C
) and L
(L
) for the connected device must be greater than or equal to C
a
o
a
o
nonincendive device with field wiring.
Where C
= 196.85 pF/m (60 pF/ft), if unknown
Cable
254
Connected device
Front USB - Pinout
1. Vcc
2. D-
3. D+
4. GND
Shield. GND
Class I, Division 2
Group A, B, C, D
or nonhazardous location
512 V
1165 mA
20 μF
16.8 μH
Table 231: Nonincendive circuit parameters for front USB interface
(U
) and I
max
i
Nonincendive device
with field wiring
USB cables
USB peripheral
Devices
Class I, Division 2
Group A, B, C, D
(or U
oc
(I
) for the nonincendive device, and the permitted values
max
i
) and I
(or I
) for the connected
o
sc
o
+ C
and L
+ L
i
Cable
i
Cable
Panel PC 2100 user's manual V1.11
for the
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