Lenze E70AC Series, Hardware Manual

Page: 101 / 162

Electrical installation
Measures when drive is used in IT systems
6
l
101
EDS700ACBA EN 5.1
6.4 Measures when drive is used in IT systems
Device−internal EMC filters have been implemented to reduce interference emission.
These EMC filters are connected to protective earth to discharge interference currents.
For the use in the IT system, the device−internal capacitors must be separated from PE, in
order to protect the devices against damage or destruction by incompatible overvoltages
in the event of an error (earth fault).
ƒ
The separation is carried out on the power supply modules by the removal of screws.
Overview of the measures
The measures can be carried out easily. They are prepared device−dependently, and their
mounting and wiring are described.
Device Measure for operation in the IT system
Controllers
E70ACM... No measure
Power supply modules
E70ACPSx0304x Remove two screws (
^
Fig. 6−5)
E70ACPSx0604x Remove one screw (
^
Fig. 6−5)
Regenerative power supply modules
E94ARNE0xx4 According to the mounting instructions
Suitable mains filter According to the mounting instructions
E70ACPSx0304x E70ACPSx0604x
E70AIT001 E70AIT002
Fig. 6−5 Position of the screws to be removed