Measures When Drive Is Used In It Systems - Lenze E70AC Series Hardware Manual

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).
The separation is carried out on the power supply modules by the removal of screws.
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Overview of the measures
The measures can be carried out easily. They are prepared device−dependently, and their
mounting and wiring are described.
Device
Controllers
E70ACM...
Power supply modules
E70ACPSx0304x
E70ACPSx0604x
Regenerative power supply modules
E94ARNE0xx4
Suitable mains filter
E70ACPSx0304x
Fig. 6−5
EDS700ACBA EN 5.1
Measures when drive is used in IT systems
Position of the screws to be removed
l
Electrical installation
Measure for operation in the IT system
No measure
Remove two screws (^ Fig. 6−5)
Remove one screw (^ Fig. 6−5)
According to the mounting instructions
According to the mounting instructions
E70ACPSx0604x
E70AIT001
6
E70AIT002
101