Siemens ET 200pro - Replacing an Interface; Power Module

Maintenance and service
7.4 Replacing an Interface / Power Module
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
163
7.4
Replacing an Interface / Power Module
Introduction
You can replace a defective interface/power module.
Requirements
● To replace the interface / power module, shut down the supply voltages 1L+ and 2L+ of
the defective module.
● The removal of the connection module of the interface module leads to the failure of
ET 200pro.
● The removal of the connection module of the power module leads to the failure of the
corresponding potential group.
Note
PROFIBUS DP: Removing the connection module of the interface module (CM IM)
The bus terminator function may fail if you shut down 1L+ at the first and last ET 200pro
of a bus segment or remove the connection module.
NOTICE
PROFINET IO: Removing the IM 154-4 PN interface module or connection module
After you shut down the 1L+ voltage of an ET 200pro, the integrated switch will also
cause a failure of all downstream ET 200pro stations.
Required tools
● Cross-tip screwdriver, size 2
● Screwdriver with 3 mm blade
Replacing the interface / power module
1. Remove the four or two screws from the front of the connection module using a crosstip
screwdriver.
2. Remove the connection module from the interface or power module.
3. Unscrew the two screws on the front panel of the interface / power module (top and
bottom right).
4. Remove the interface / power module from the bus module.
5. Reinstall the new interface / power module and the connection module.
6. Switch on the relevant power supplies.