Safety Instructions For I/O Devices - Siemens SIMATIC IPC647E Operating Instructions Manual

Safety instructions

2.5 Safety instructions for I/O devices

2.5 Safety instructions for I/O devices
Risk of damage to the device from connecting I/O devices
Fault caused by I/O devices
The connection of I/O devices can cause faults in the device.
The result may be personal injury and damage to the machine or plant.
• Only connect I/O devices which are approved for industrial applications in accordance
• I/O devices that are not hotplug-capable may only be connected after the device has
Danger due to regenerative feedback
NOTICE
Damage to the device due to regenerative feedback
A connected or installed component can cause voltage to be fed back to ground in the
device.
This can damage the device.
• Do not apply voltage to the device through connected or installed I/O devices that are
Note on measuring the counter voltage
Note
Note the following when measuring the counter voltage:
• Switch off the affected device and then insert the power plug.
• Connect all cables from the system to the device and switch all components of the system
to active before starting the measurement.
44
CAUTION
with EN 61000-6-2 and IEC 61000-6-2.
been disconnected from the power supply.
operated with their own power supply (e.g. a USB drive with an external power supply).
Operating Instructions, 09/2022, A5E52254141-AA
SIMATIC IPC647E