Proface GP4100 - 3.4 Compact HMIs" - Manual (Page 13)

12
(4) Control Drawing of USB (Type A) Interface (USB1)
The information below concerns the use of the USB interface used in Class I, Division 2, Groups A, B, C,
and D hazardous locations (from Doc No. 3910017-USB).
Notes:
1. Nonincendive Circuit Parameters:
USB interface:
Voc = 5.25 V
Isc = 0.7 A
Ca = 16 µF
La = 10 µH
2. Selected Associated Nonincendive Field Wiring Apparatus shall satisfy the following:
3. If the electrical parameters of the cable are unknown, the following values may be used:
Capacitance = 60 pF/ft
Inductive = 0.20 µH/ft
4. Nonincendive Field Wiring must be installed in accordance with article 501.10(B) of the National
Electrical Code ANSI/NFPA 70.
5. Nonincendive Field Wiring Apparatus shall not contain or be connected to another source of power.
(5) USB (mini-B) Interface (USB2) is for temporary connection only during maintenance and setup of the
device. Do not use, connect, or disconnect unless area is known to be non-hazardous. Connection or
disconnection in an explosive atmosphere could result in an explosion.
Associated Nonincendive Field
Wiring Apparatus for USB (Type A)
interface of the GP-4100 Series
-
Nonincendive Field Wiring
Apparatus
Voc
≤
Vmax
Isc
≤
lmax
Ca
≥
Ci + C cable
La
≥
Li + L cable
USB Pin Description
1. Vcc
2. D-
3. D+
4. GND
(See Note 1 for details)
Shield GND
Nonincendive Field
Wiring Apparatus
1 2 3 4