Siemens S5-135U/155U System Manual page 488

Analog Input/Output Modules
Remove an analog output module as follows:
Step
1
2
3
4
Figure 9-37
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.
9-106
Action
Release the upper locking bar on the subrack and swivel it upwards 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 connector of the module.
Contacts F+ and F- of the enable input at the upper end of the front con-
nector 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
the module. You can pull the module out of the subrack with a grip with
swivels outwards.
1
Front
Connector
3
Module with Front Connector
Screw
Locking pin
Support mount
Support pin
Grip
Backplane connector
o
at the lower end of
5
4
2
C79000-G8576-C199-06
6
Module
Support Mount
Support Pin
System Manual