In the case of push-in connections, no wire end ferrules may be used.
You can find the suitable cable cross-sections in the technical specifications of the products.
In Ex applications, the following applies:
Loose cables can cause sparks and therefore represent a potential source of ignition.
Adhere strictly to the specifications for cable cross-section, wire stripping length and end sleeves.
With screw-type installation, the tightening torque must also be precisely observed.
Information on connection technology can be found in the technical specifications for the respective products.
You will need a suitable screwdriver with a torque indicator or limiter to install the connection.
6
Commissioning, operation and maintenance
DANGER
Explosion hazard
In Ex applications, the following applies:
In Ex applications, plugging and unplugging modules, plugs or other electrical connections under voltage is dangerous
because sparks can be generated and there is a risk of explosion. Disconnecting and closing connections is also dangerous
for the same reason.
Make sure that no explosive atmosphere can be present for the duration of required work.
WARNING
Unexpected malfunction of machines and plants
Although the product is extremely robust against electromagnetic interference in the intended EMC environment, it can
never be completely ruled out that cell phones, radios or other devices with high EMC emissions (walkie-talkies, CB radios,
etc.) that are operated in the immediate vicinity of the product may interfere with the automation system during operation.
Malfunctions can lead to unexpected start-up or other dangerous behavior of machines and systems. This can result in
death, serious injury or severe damage to property.
Switch off such devices or remove them from the vicinity (at least 2 meters).
Keep the doors of the enclosure/control cabinet closed during operation.
If you scan the 2D matrix code/ID link on the switched-on system or use the "SIEMENS Industry Support App", deactivate all
wireless connections of the cell phone beforehand.
6.1
Tests
Every automation system, machine and installation requires testing during commissioning and operation to ensure safety.
The planning of complex activities requires special care on the part of all those involved. Ensure the following for the
automation system, the machine and the installation:
•
No commissioning until all necessary checks have been successfully completed.
•
If there are signs during operation that safety is impaired:
No further operation until a safe state has been reached.
Note
In Ex applications, the following applies:
Before commissioning, an initial inspection of the entire Ex application must be carried out by an independent expert.
Electrical devices and circuits in Ex applications require constant monitoring, regular recurring tests and spot checks in order
to detect faults and damage in good time before they become a hazard.
Ensure that the initial inspection and all other necessary inspections and monitoring activities are carried out. The tests and
monitoring activities must be documented in a verification file in accordance with the relevant standards and directives. It
must be possible to trace the initial inspection and all subsequent inspections, monitoring activities and, if applicable,
changes using the verification file. More details are described in IEC60079-17.
In fail-safe applications, the following applies:
As part of the functional safety management, an initial test of the entire fail-safe system by an independent expert must be
conducted prior to commissioning.
ET 200SP HA Distributed I/O System
A5E52222765-AB, 11/2024
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