Siemens SIMATIC ET 200eco PN M12-L System Manual page 21

2.9.2 Installation and connection
Ensure for the connection that the overvoltage protection is sufficient.
Installation/disassembly with voltage switched on
• Install the ET 200eco PN M12‑L distributed I/O devices only with disconnected supply and
• If you connect or disconnect the I/O devices with the power connected, this can lead to
• When disconnecting plug-in connections during running operation, personal injury and
Distributed I/O system ET 200eco PN M12-L
System Manual, 11/2023, A5E48753295-AG
load voltages.
Refer to section Mounting (Page 39)
undefined states in your system.
As a result material damage may occur at the distributed I/O device ET 200eco PN M12‑L.
Only remove or replace the I/O device when the voltage is switched off. Always comply
with the required standards and safety guidelines when configuring a system.
Refer to section Maintenance (Page 86)
material damage may occur in potentially explosive atmospheres.
In potentially explosive atmospheres, de-energize the ET 200eco PN M12-L I/O device
before disconnecting plug connections.
Observe the special conditions for hazardous areas in these sections:
– Codes and approvals (Page 93)
– Use of the ET 200eco PN M12-L in Zone 2/Zone 22 hazardous areas (Page 106)
Safety instructions
2.9 Material damage
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