Installation and wiring
5.4 Connecting to the power grid
Danger!
•
The entire power supply must be disconnected and electrostatic discharge must take place on
the housing or ground connection before removing any covers or components from the device
and installing or removing any accessories, hardware or cables.
•
Remove the power cable from the device and from the power supply.
•
All covers and components, accessories, hardware and cables must be installed or secured
before the device is connected to the power supply and switched on.
5.4.1 Installing the DC power cable
Danger!
The entire power supply to the B&R industrial PC or B&R Automation Panel must be interrupted. Before
connecting the DC power cable, it must be checked whether it has been disconnected from the voltage
source (e.g. power supply unit).
5.4.1.1 Wiring
Caution!
The pinout of the power supply interface must be observed!
The DC power cable must be implemented with a wire cross section of 0.75 mm
2
to 1.5 mm
2
and wire end sleeves.
Conductors of the power cable
Terminal connection symbol
+24 VDC
+
GND
0 VDC
-
Installing screw clamp terminal block 0TB103.9
Secure the conductors with wire end sleeves
①
in the terminal contacts
③
as shown in the figure below and tighten
the screw clamp terminals
④
with a screwdriver (max. tightening torque 0.4 Nm). It is important to pay attention
to the label on the screw clamp terminal
②.
(2)
(1)
+
-
(4)
(3)
24 VDC
0 VDC
Installing cage clamp terminal block 0TB103.91
Insert a screwdriver into the cage clamp terminals
②
and secure the conductors with wire end sleeves
①
in the
terminal contacts
③
as shown in the figure below. Close the terminal contact by removing the screwdriver. It is
important to pay attention to the label on the cage clamp terminal
④.
(2)
(3)
(4)
24 VDC
0 VDC
(1)
Automation Panel 9x3 User's manual 2.01
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