Lenze L-force 9400 E94ASHE Serie Instrucciones Para El Montaje página 62

5 Wiring the device
Important notes
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.
Proceed as follows to disconnect the internal connection between the filters and PE:
1. Find the screw over terminals X100 (+UG/-UG) in position "TT-TN" ( Fig.5-1).
2. Unscrew the screw and screw it in again at position "IT".
– Tightening torque: 3.4 Nm (30 lb-in)
Fig.5-1
3. Find the metal strap on the left of the device ( Fig.5-2).
4. Unbolt the screws to remove the metal strap.
5. Unbolt the screw at position "IT" and insert the metal strap.
6. Tighten all screws.
– Tightening torque: 3.4 Nm (30 lb-in)
Device size 6
Fig.5-2
After this, the device is suitable for operation in IT systems.
62
Device size 7
94GG67IT62

94GG67IT01
94GG67IT72
EDK94SH104 DE/EN/FR/ES/IT 4.1