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2 Connecting to the power mains
Danger!
• All supply voltage must be disconnected before removing device covers or components or
removing/installing accessories, hardware or cables.
• The power cable must be disconnected from the device and from the voltage supply.
• Before the device can be connected to the power supply and turned on, all covers, components,
accessories, hardware and cables must be installed or attached.
2.1 Installing the DC mains cable
Danger!
Supply voltage to the B&R Industrial PC must be disconnected completely. Before connecting the DC
mains cable, it is important to make absolutely sure that it has been disconnected from the power
source (e.g. power supply).
2.1.1 Wiring
The DC mains cable must be secured in the terminal block (power connector) as shown in the image. Wires with
a cross section of 0.75 mm
Installing the 0TB103.9 screw clamp terminal block
Insert the wires with the wire end sleeves into the terminal contacts ➁ as shown in the image and tighten the screw
clamps ➀ with a screwdriver (max. torque of 0.4 Nm).
It is important to pay attention to the pin assignments of the power supply connector on the device!
Installing a screw clamp terminal block
DC mains cable
Installing the 0TB103.91 cage clamp terminal block
Insert a screwdriver into the cage clamp terminal ➀ and fasten the wires with wire end sleeves in the terminal
contacts ➁ as shown in the image below. Close the terminal contact by removing the screwdriver.
It is important to pay attention to the pin assignments of the power supply connector on the device!
Installing a cage clamp terminal block
DC mains cable
Panel PC 900 User's Manual V1.05
to 1.5 mm
and wire end sleeves are to be used.
2
2
Figure 91: Installing a screw clamp terminal block
Figure 92: Installing a cage clamp terminal block
Installation • Connecting to the power mains
Screw clamps
24 VDC
Functional ground
0 VDC
Terminal block
Terminal contacts
24 VDC
Functional ground
0 VDC
Terminal block
Terminal contacts
+
-
Cage clamps
155
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