Installation And Removal Safety Rules - Siemens SIMATIC S7 Functional Safety Manual

4.1.3

Installation and removal safety rules

Installing and removing the S7-1200 devices
The CPU can be easily installed on a standard DIN rail or on a panel. DIN rail clips are
provided to secure the device on the DIN rail. The clips also snap into an extended position
to provide a screw mounting position for panel-mounting the unit.
①
②
Before you install or remove any electrical device, ensure that the power to that equipment
has been turned off. Also, ensure that the power to any related equipment has been turned
off.
Installation or removal of S7-1200 or related equipment, with the power applied, could
cause electric shock or unexpected operation of equipment.
Failure to disable all power to the S7-1200 and related equipment during installation or
removal procedures could result in death, severe personal injury and property damage due
to electric shock or unexpected equipment operation.
Always follow appropriate safety precautions and ensure that power to the S7-1200 is
disabled before attempting to install or remove S7-1200 CPUs and related equipment.
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
DIN rail installation
DIN rail clip in latched position
WARNING
Fail-Safe CPU and signal module (SM) installation
4.1 S7-1200 Fail-Safe modules installation and removal
③
Panel installation
④
Clip in extended position for panel mounting
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