Technical data • Complete system
38
Panel PC 2100 swing arm user's manual V1.12
2.4.2 +24 VDC power supply
Danger!
This device is only permitted to by supplied by a SELV / PELV power supply or with safety extra-low
voltage (SELV) in accordance with EN 60950.
The 3-pin male connector required for connecting the power supply is not included in delivery. It can be ordered
from B&R using model number 0TB103.9 (screw clamp terminal block) or 0TB103.91 (cage clamp terminal block).
The pinout is listed in the following table. The supply voltage is protected internally by a soldered fuse (15 A, fast-
acting) to prevent damage to the device in the event of an overload (fuse replacement necessary) or if the voltage
supply is connected incorrectly (reverse polarity protection -> fuse replacement not necessary). The device must
be returned to B&R for repairs if the fuse is blown in the event of error.
+24 VDC power supply
Protected against reverse polarity
Pin
Description
1
+
2
Functional ground
3
-
Model number
Short description
Terminal blocks
0TB103.9
Male connector 24 V 5.08 3-pin screw clamp terminal
block
0TB103.91
Male connector 24 V 5.08 3-pin cage clamp terminal
block
3-pin male power supply connector
+24 VDC power supply
Table 24: +24 VDC voltage supply connection
Electrical characteristics
Nominal voltage
24 VDC ±25%, SELV
1)
Nominal current
3.5 A
Inrush current
Typ. 6 A; max. 10 A for <300 μs
Overvoltage category in accordance with EN
61131-2
II
Electrical isolation
Yes
Uninterruptible power supply
No
1)
EN 60950 requirements must be observed.
2.4.2.1 Grounding
Caution!
Functional ground (pin 2 of power supply and ground connection) must be kept as short as possible
and connected to the largest possible wire cross section at the central grounding point (e.g. the control
cabinet or system).
The ground connection is located on the interface side of the Panel PC system.
Grounding
The ground connection must be used, for example, to fasten a copper strip to a central grounding point in the
control cabinet or system where the device is installed. The largest possible conductor cross section should be
used (at least 2.5 mm²).
