S5-100U Installation Guidelines
3 Installation Guidelines
3.1 Installing S5-100U Components
Except for the I/O module, all of the S5-100U components are mounted on standard mounting rails
in accordance with DIN EN 50022-35x15. Mount the rails on a metal plate to obtain the same
reference potential.
Bus units with a SIGUT/screw-type, or crimp snap-in connection method have different heights.
If you install, remove, or change any parts of your S5-100U system, your system must be in the
state indicated in Table 3-1.
Table 3-1. Installing, Removing, and Changing S5-100U Components
Installing, Removing, and
Changing:
S5-100U
Power Status
S5-100U
Operating Mode
I/O modules
Bus units
Interface modules
X STOP
XPower OFF
X=not relevant
OFF
X
CPU power supply
Power supply
voltage OFF
X X
Load
Voltage
3.1.1 Assembling a Tier
You need the following components to configure the S5-100U:
• Power supply module
• Central processing unit
• Bus units
• I/O modules
If you do not have a 24 V DC power supply, you must have a power supply module.
Mount the first module on the extreme left end of the standard mounting rail. Add other modules to
the right of the first module.
EWA 4NEB 812 6120-02
3-1
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