96BInstallation
3.3 Installation and removal procedures
S7-1200 Programmable controller
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System Manual, 11/2011, A5E02486680-05
Always ensure that whenever you replace or install an S7-1200 device you use the correct
module or equivalent device.
WARNING
Incorrect installation of an S7-1200 module may cause the program in the S7-1200 to
function unpredictably.
Failure to replace an S7-1200 device with the same model, orientation, or order could result
in death, severe personal injury and/or property damage due to unexpected equipment
operation.
Replace an S7-1200 device with the same model, and be sure to orient and position it
correctly.
3.3.2
Installing and removing the CPU
You can install the CPU on a panel or on a DIN rail.
Note
Attach any communication modules to the CPU and install the assembly as a unit. Install
signal modules separately after the CPU has been installed.
Consider the following when installing the units on the DIN rail or on a panel:
●
For DIN rail mounting, make sure the upper DIN rail clip is in the latched (inner) position
and that the lower DIN rail clip is in the extended position for the CPU and attached CMs.
●
After installing the devices on the DIN rail, move the lower DIN rail clips to the latched
position to lock the devices on the DIN rail.
●
For panel mounting, make sure the DIN rail clips are pushed to the extended position.
To install the CPU on a panel, follow these steps:
1.
Locate, drill, and tap the mounting holes (M4 or American Standard number 8), using the
dimensions shown in the mounting dimensions.
2.
Ensure that the CPU and all S7-1200 equipment are disconnected from electrical power.
3.
Extend the mounting clips from the module. Make sure the DIN rail clips on the top and
bottom of the CPU are in the extended position.
4.
Secure the module to the panel, using screws placed into the clips.
Note
If your system is subject to a high vibration environment, or is mounted vertically, panel
mounting the S7-1200 will provide a greater level of protection.