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Electric shock caused by induced voltage
Rotating machinery can induce dangerous high voltages and synchronous motors that are not
de-excited immediately can also pose a hazard. If the connection to the motor is not isolated or
grounded, these voltages can also remain. Touching live parts can result in death or serious
injury.
• Before opening the doors, wait until the connected machine has come to a standstill.
Electric shock caused by dangerous auxiliary voltages
Danger voltages are still present even after shutdown. Touching live parts can result in death or
serious injury.
• Carefully comply with the 5 safety rules.
Electric shock caused by reverse voltage
When using the generator as a starting converter in a power plant with a switching device, it is
possible to use a second starting converter to start up the generator. In the process, dangerous
reverse voltages may arise from other starting converters, even when devices are switched off.
Touching live parts can result in death or serious injury.
• Carefully comply with the 5 safety rules.
• Work on the converter must be carried out by qualified, appropriately trained personnel.
• Strictly observe the warnings provided in this documentation and the safety-relevant
information on the product itself.
Danger caused by arcing
Hazards caused by arcing can occur as result of the following factors, for example:
Input currents above the permissible limits, incorrectly dimensioned circuit breakers or
transformers, incorrectly connected or unconnected cables, dirt, objects that have been
forgotten, e.g. tools used for installation.
Arcing can result in death, serious injury or material damage.
• As system operator, carefully ensure that the system has been professionally designed and
dimensioned.
• Correctly connect the power cables. The maximum permissible input currents are listed in
the "Technical specifications".
• Remove contamination and dirt.
• After installation and mounting, carefully check that no objects have been left in the device.
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
Safety information
2.4 Safe handling
13
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