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Operation
8.1
Safety instructions for operation
When carrying out any work, carefully observe the information provided in Chapter "Safety
instructions (Page 11)".
Electric shock caused by a high voltages
High voltages are present both during operation and also after the device has been switched
off. Touching live parts can result in death or serious injury.
• Ensure that no voltage is present when the doors of the power unit are open.
• Do not open the doors during operation.
Danger when operating the converter that has a fault condition
Operating a converter where a fault has been identified can result in death, severe injury and
significant material damage.
• Strictly observe all fault and alarm messages.
• Rectify the fault cause. Only switch on the converter again after the cause of fault has been
fully rectified. You can find further information on alarms and faults in the section "Indicating
and rectifying faults."
• If it is not possible to simply rectify a fault, inform the manufacturer's service personnel
immediately. For additional information, see the "Service & Support" chapter.
Danger when operating with ground fault
The type and location of the fault cannot be established just from a ground fault error message.
For example, the glow discharge at the winding overhang of the machine may result in a fault
signal. In the event of continued operation, serious follow-on faults up to electric arcs are
possible. This can result in death, serious injury or material damage.
• Immediately switch off the device if a ground fault occurs during operation. Then identify and
eliminate the source of the ground fault.
• The company operating the plant or system is responsible for the consequences when the
device is still operated after a ground fault has been identified. Carry out a risk analysis.
Danger when the permissible short-circuit currents are exceeded
Serious follow-on faults are possible, if the specified short-circuit current values are exceeded.
This can result in death, serious injury or material damage.
• Observe the maximum permitted short-circuit current.
• Observe the specified maximum short-circuit times.
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
8
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