Connect battery pack

CAUTION

Risk of electric shock

Dangerous touch voltages can lead to electric shock. To avoid electric shock, observe the following:

Never plug or unplug the battery pack cable during a thunderstorm.
Provide protective earthing for handling the battery pack.

Notice

Incorrect connection procedure

Incorrect procedure when connecting the cable can cause hardware damage.

Follow the documented procedure for connecting the cable.
Always connect the cable first and only then switch on the power supply of the connected PC.

After you have mounted the battery pack in the control cabinet, you can connect it to the PC.

Grounding

Potential differences are minimized and electrical currents are diverted to the ground through protective earthing or potential equalization of electronic devices. This is to prevent dangerous touch voltages and electromagnetic interference.

Connecting the battery pack

You must connect the battery pack to the PC. For this purpose, there is a 5-pin 2-wire terminal strip with mounting flange on the battery pack housing (see Fig. 6).

Pin assignment terminal strip
Pin	Function
1	-	24 V battery pack
2	+	24 V battery pack
3
4	0 V		Power supply
5	24 V		Power supply

You can connect two wires on each side of a terminal of the terminal strip. For this purpose, you must use double wire end sleeves (see Fig. 7).

PIN 4 and 5 of the battery pack are available for looping through a 24 V power supply to the PC. Accordingly, you can connect a three-core sheathed cable with plus and minus of the supply voltage as well as protective earth to the battery pack and then connect the battery pack to the PC with a five-core sheathed cable.

If the supply voltage fails, the PC draws the voltage from the charged battery pack, which saves the data and allows the PC to shut down properly.

The intended wiring of the battery pack can be found in the following wiring diagrams suitable for your device.