Siemens S5-135U/155U System Manual page 425

Remove an analog input/output module as follows:
Step
1
2
3
4
Figure 9-15
1
2
3
4
5
6
Comply with VDE Specifications 0110 and 0160 to carry out the wiring of
supply and signal lines which are to be connected to the programmable
controllers and front connectors of the modules.
Detailed information on cabinet assembly, cabinet ventilation and protective
measures can be found in Chapter 3.
System Manual
C79000-G8576-C199-06
Action
Release the upper locking bar on the subrack and swivel it up-
wards and out.
Slacken the screw in the upper part of the front connector. This
causes the front connector to be pressed out of the female con-
nector of the module. Contacts F+ and F- of the enable input at
the upper end of the front connector are thus opened first. If the
enable input is active, power is removed from the outputs and
the module is isolated from the S5 bus.
Swing the front connector out and lift it away from the support
pin of the module.
Release the module by rotating the locking pin by 90 at the
lower end of the module. You can pull the module out of the
subrack with a grip with swivels outwards.
1
Front
Connector
2
3
Module with Front Connector
Screw
Locking pin
Support mount
Support pin
Grip
Backplane connector
Analog Input/Output Modules
6
Module
Support Mount
5
Support Pin
4
9-43