Siemens S5-135U/155U appendix Remove a digital input/output module as follows, Wiring

Digital Input/Output Modules

Remove a digital input/output module as follows:

Step

1

2

3

4

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 connector of the module. Contacts F+ and F- of the enable in- put at the upper end of the front connector are thus opened first.

Swing the front connector out and lift it away from the support pin of the module.

Release the module, if necessary, by rotating the locking pin by 90o. You can pull the module out of the subrack with a grip which swivels outwards.

		6
		Module
1
Front Connector
	5	Support Mount
		Support Pin
4
2
3

Figure 8-8 Module with Front Connector

1Screw

2Locking pin

3Support mount

4Support pin

5Grip

6Backplane connector

Wiring	Comply with VDE Specifications 0100 and 0160 to carry out the wiring of
	the supply and signal lines which are to be connected to the programmable
	controllers and front connectors of the modules. Detailed information on the
	supply of power, cabinet assembly, cabinet ventilation, cabinet wiring and
	protective measures can be found in Chapter 3.

System Manual	8-19
C79000-G8576-C199-06