Vdc Power Supply - B&R Panel PC 2100 User Manual

2.2.4.2 +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) per 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).
For the pinout, see the following table. The supply voltage is protected internally by a soldered fuse (10 A, fast-
acting) to prevent damage to the device in the event of 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 destroyed in the event of error.
Protected against reverse polarity
Pin
1
2
3
Model number Short description
Terminal blocks
0TB103.9 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
Electrical characteristics
Nominal voltage
Nominal current
Inrush current
Overvoltage category per EN 61131-2
Electrical isolation
Uninterruptible power supply
1) EN 60950 requirements must be observed.
2.2.4.2.1 Grounding
Caution!
Functional ground (pin 2 of power supply and ground connection) must be connected to the central
grounding point (e.g. of the control cabinet or system) using the shorted path with the lowest resistance
and largest possible wire cross section. This type of grounding is mandatory to ensure the system
functions properly.
Automation PC systems are equipped with a ground connection on the interface cover.
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 wire cross section should be selected
(at least 2.5 mm²).
Panel PC systems have a ground connection on the interface cover.
Panel PC 2100 user's manual V1.17
+24 VDC power supply
Description
+
Functional ground
-
Table 37: +24 VDC power supply connection
24 VDC ±25%, SELV
1)
3.5 A
Typ. 6 A; max. 10 A for <300 μs
II
Yes
No
Grounding
3-pin male power supply connector
+24 VDC power supply
Grounding
Technical data
49