Lenze E94ASHE Serie Instrucciones Para El Montaje página 85

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IT system
Stop!
Overvoltage on components:
In case of an earth fault in IT systems, incompatible overvoltages may occur in
the plant.
Possible consequences:
Destruction of the device.
Protective measures:
When using the devices in IT systems, separate the internal connection of
filters to the protective earth. For this purpose carry out the device-specific
measure as described.
How to separate the internal connection of filters to the protective earth:
1. Remove the upper housing cover.
2. The S300 switch can be found on the Interface card. The Interface card is located in
the top of the device.
– ON position: Standard operation at earthed-neutral systems (Lenze).
– OFF position: Operation at IT systems.
3. Push the S300 switch into the OFF position.
ON - Standard
EDK94SH366 DE/EN/FR/ES/IT 3.1
Wiring the device
OFF - IT
IF-Card-SW
Important notes
94ITSW8001
IF-Card-SW
5
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