Multi−axis controllers
Wiring
Earthing of internal EMC filters
4
204
EDS94SPP101 EN 10.2
4.7.3 Earthing of internal EMC filters
Device−internal EMC filters have been implemented to reduce interference emission.
These EMC filters are connected to protective earth to discharge interference currents.
Under certain conditions the EMC filters must be disconnected from:
ƒ Operation in an IT system
The devices are protected from damages or destruction due to incompatible
overvoltages in the case of an error (earth fault).
ƒ DC−bus operation
ƒ Operation with power supply modules or regenerative power supply modules
ƒ Operating multiple devices with a common filter
The EMC properties can only be reached by carrying out the described measures.
The triggering behaviour of applicable earth−leakage circuit breakers remains
undisturbed.
Wiring Safety instructions for the installation according to UL/CSA
Overview of the measures
The measures which are to be carried out once have been prepared in relation to the
devices and are each described together with installation and wiring.
Device (GG = device size)
Measure in the case of operation ...
in the IT system in the interconnected
system, with power supply
modules or shared filters
Inverter
with installation backplane (GG1 ... GG3) Insert plastic cap elsewhere
without installation backplane (GG6 ... GG7) Change screwed connection
without installation backplane (GG81 ... GG83) Change screwed connection
without installation backplane (GG91) Only factory−set measures are possible.
Please specify when ordering.
Power supply modules
with installation backplane (GG1 und GG3) No measure necessary
without installation backplane (GG4 ... GG5) No measure necessary
Regenerative power supply modules
with installation backplane (GG3) Insert plastic cap elsewhere
associated mains filter Change screwed connection No measure necessary
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