Siemens SIMATIC ET 200S Installation And Operating Manual page 90

Fail-Safe Modules
7.3 PM-E F pp DC24V PROFIsafe power module
Wiring Diagram
The wiring for the power module is carried out on the special terminal module.
Figure 7-13
Warning
Please use an external fuse for L+ at the PM-E F pp with the following properties to protect
the relay contact from overload: circuit-breaker of B characteristic as per IEC 947-5-1, 10 A.
Relay output
The relay output connects the L+ voltage over two relay contacts. The connected voltage is
fed outwards to the terminal module and to the internal voltage buses P1 and P2. This
results in two connection options that can be used at the same time:
• A load can be connected directly to the terminal module (K1 in the figure above).
• Electronic modules can be supplied by means of the internal voltage buses P1 and P2.
7-30
Wiring diagram of the PM-E F pp DC24V PROFIsafe
Loads can be connected to these modules in turn (K2, K3, K4 in the figure above).
ET 200S Distributed I/O System - Fail-Safe Modules
Hardware Installation and Operating Manual, 07/2005, A5E00103686-04