Switching Elements On Printed Circuit Boards - Siemens SIPROTEC 7SA522 Manual

3 Mounting and Commissioning
Figure 3-4 Front view with housing size
3.1.2.3

Switching Elements on Printed Circuit Boards

Input/Output Board
C-I/O-1 and C-I/O-10
380
1
/ after removal of the front cover (simplified and scaled down)
1
The layout of the PCB for the input/output board C-I/O-1 is shown in Figure 3-5, the
PCB for the input/output board C-I/O-10 is shown in Figure 3-6.
The power supply is situated
• On the input/output board C-I/O-1 (No. 2 in Figure 3-3, slot 19) for housing size
• On the input/output board C-I/O-1 (No. 2 in Figure 3-4, slot 33 left) for housing size
1
/ ,
1
The preset nominal voltage of the integrated power supply is checked according to
Table 3-2, the quiescent state of the life contact is checked according to Table 3-3.
1
/ ,
2
7SA522 Manual
C53000-G1176-C155-3