Beckhoff CP2712 - Connecting Cables and Power Supply; Table 11 Order Identifier Battery Pack

Commissioning
CP27xx28 Version: 2.0
4.3.3 Connecting cables and power supply
NOTE
Incorrect connection procedure
Incorrect procedure when connecting the cables and the power supply can cause hardware damage.
• Follow the documented procedure for connecting the cables and the power supply.
• Always connect all cables first and only then switch on the power supply.
• Please read the documentation for the external devices prior to connecting them.
NOTE
Connection of incorrect battery packs
Connecting the wrong battery packs can cause damage to the panel PC and the battery packs.
• Only connect the Beckhoff battery pack C9900-U332 or C9900-U330 to your panel PC.
The connections are located at the rear of the panel PC.
Connecting cables
Make sure that you first ground the PC (see chapter 4.3.2 Grounding the panel PC [}27]) and then plug in all
data transmission cables.
Connecting the power supply
Cables with a maximum cable cross-section of 1.5 mm
2
can be used for connecting the power supply. For
long supply lines, use 1.5 mm
2
cables to achieve a low voltage drop on the supply line. There should be at
least 22V at the voltage connector of the panel PC, so that the PC remains switched on during voltage
fluctuations.
Proceed as follows to connect the 24V
DC
power supply unit:
1. First mount the power supply cable with the 8-pin connection strip without the strain relief housing.
2. Plug the voltage connector into the voltage socket on the panel PC.
3. Screw the voltage connector to the voltage socket.
4. Connect the PC to your external 24 V power supply.
5. Switch on the 24V power supply.
6. Measure the voltage on the power supply plug of the PC.
7. Mount the strain relief housing on the 8-pin connection strip.
External battery pack
If you ordered your device with an integrated UPS, then you can connect an external battery pack and install
it on a DIN rail near to the PC. Use only Beckhoff battery packs for this:
Table11: Order identifier battery pack
Order identifier Version
C9900-U330 Battery pack for PCs with 24V power supply unit and integrated UPS C9900-
P209 or C9900-U209, external for DIN rail mounting, 3.4 Ah, operating
temperature 0...50°C, contains two closed lead-acid batteries VRLA-AGM
C9900-U332 Battery pack for 24V power supply with integrated C9900-U209 UPS for PCs
with Intel-Atom
®
or Celeron
®
ULV-827E 1.4 GHz processor, external for DIN
rail mounting, 1.2Ah, operating temperature 0...50°C, contains two closed
VRLA-AGM lead-acid batteries