Siemens SIMATIC ET 200pro Series Operating Instructions Manual page 55

Therefore, only the most important points concerning its use with a frequency converter will
be covered here.
The 6ES7194-4DA00-0AA0 bus module is required to accommodate an F-Switch. It is
mounted to the left of the frequency converter bus module. Then the electronic module and
the connection module are mounted.
Procedure
1. Plug the electronic module onto the bus module.
2. Plug the connection module onto the old electronic module.
3. Use a screwdriver, size 2, to screw the connection module onto the electronic module
and bus module with the 2 recessed head screws using a tightening torque of 1.5 Nm.
Figure 4-16
The F-Switch module is now installed.
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257324B AE
Installing the F-Switch module
Connection module
Interface Module
F-Switch Module
Bus module 155 mm for frequency converter
Bus terminating module
4.11 Mounting ET 200pro FC-2 fail-safe devices
Installation
55