Lenze E94ASHE Axis Single Drive 32-104A - Manual (Page 62)

Wiring the device
Important notes
5
l
62 EDK94SH104 DE/EN/FR/ES/IT 5.1
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 the 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)
94GG67IT01
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 Device size 7
94GG67IT62 94GG67IT72
Fig. 5−2
After this, the device is suitable for operation in IT systems.