Siemens S7-400 installation manual Accessories

Installing the S7-400

2.16Accessories

Accessories

Some of the accessories needed for fitting the modules in the rack are provided in the packaging of the modules and racks. The front connectors of the signal modules must always be ordered separately. There are also optional accessories for some modules.

The accessories for modules and racks are listed and briefly explained in Table 2-3. A list of spare parts for SIMATIC S7 can be found in the Reference Manual, Appendix C as well as in the current CA 01 catalog.

Table 2-3 Accessories for Modules and Racks

Module	Accessories	Accessories Not	Purpose of the Accessory
	Supplied	Supplied
Rack (UR, CR,	Number wheel with	--	For identifying the modules with
ER)	slot labels		slot labels
Power Supply	--	1 or 2 backup	For central backup of RAM areas
Module (PS)		batteries	in the CPU
CPU	--	Memory cards	Load memories required for the
			CPU
Signal Module	2 labels	--	For labeling the inputs and
(SM)		--	outputs on the front connector
	Plate with pinout		To identify the pinout of the front
			connectors
	--	Front connector with	For wiring the SMs
		strain relief for screw,
		crimp or spring-type
		terminal
	--	Extraction tool (for	For rewiring SMs with a front
		crimp terminals)	connector with crimp terminals
	--	Crimp contacts
	--	Crimping tool

Automation System S7-400	Hardware and Installation	2-35
A5E00850741-01