Siemens SIPROTEC 7SS523 V3.2 Manual page 50

Getting Started
Bay unit 7SS523
Figure 3-3 Location of the jumpers on the EFE module (bay unit 7SS523)
34
Warning!
Dangerous voltages may be present inside the device!
Make sure to switch the auxiliary voltage off before opening the front panel.
To change the rated control voltages of the binary inputs in a bay unit:
Open the front panel. The location of the EFE module is shown in Figure 2-4, page
19.
Remove the plug connector X1 to the front plate on the EFE module (Figure 3-3,
page 34) and pull out the module.
Change the rated control voltages of the binary inputs to the desired settings, see
Figure 3-3, page 34 and Table 3-3, page 35.
To insert the buffer battery into the bay unit:
Press the battery firmly into its snap-in holder (see Figure 2-4, page 19) on the PFE
module. Observe the correct battery polarity! The polarity is marked on the back
of the board.
7SS52 V4 Manual
C53000-G1176-C182-1