Lenze L-force 9400 Serie Instructions De Montage page 40

5 Mechanical installation
Earthing of internal System 9400 EMC filters
5.2 Earthing of internal System 9400 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:
Operation in an IT system
ƒ
The devices are protected from damages or destruction due to incompatible
overvoltages in the case of an error (earth fault).
DC−bus operation
ƒ
Operation with power supply modules or regenerative power supply modules
ƒ
Operating multiple devices with a common filter
ƒ
The EMC properties can only be reached by carrying out the described measures.
The triggering behaviour of applicable earth−leakage circuit breakers remains
undisturbed.
Overview of the measures
The measures can be carried out easily. They are prepared device−dependently, and their
mounting and wiring are described.
Device
Controller
With installation backplane (GG1 ... GG3)
Without installation backplane (GG6 ... GG7)
Without installation backplane (GG8S ... GG10)
Power supply modules
With installation backplane (GG1 und GG3)
Without installation backplane (GG4 ... GG5)
Regenerative power supply module
With installation backplane (GG3)
Suitable mains filter
40
Measure
Plug/unplug the plastic cap
Change the screwed connection
Activate the switch
Plug/unplug the plastic cap
−−−
Plug/unplug the plastic cap
Change the screwed connection
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EDK94ZMR47XDB DE/EN/FR/ES/IT 4.0