DC−bus operation
Introduction
General information on the accessories
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EDS94SPP101 EN 10.2
7.1.4 General information on the accessories
Fuses in the DC bus
For device protection, multi−axis controllers up to 11 kW are equipped with a fuse in the
installation backplane. The fuse is only integrated into the current path if the busbar
system (X109) is used.
When operated in a DC−bus connection, single−axis controllers can be retrofit with a fuse
in the installation backplane for device protection (see busbar mounting set).
When the alternative terminal connections are used for DC−bus wiring, external fuses
must be integrated into both current paths (+UG/−UG).
Busbar mounting set
With the busbar mounting set (E94AZJA0xx) you can connect a single−axis controller via a
busbar to a DC bus, e.g. to provide additional brake power. The busbar mounting set also
includes the corresponding fuse.
DC−feeding point
With the DC−input module (E94AZEX100) you can establish the electrical connection
between the DC cables and the busbar. Multi−row or distributed arrangements are
possible.
Filters
RFI filters and mains filters are available for the devices connected to the AC mains (supply
modules or single−axis controllers).
Depending on the application, additional filters may be required for compliance with the
EMC regulations. When dimensioning the filters, please consider:
ƒ Motor cable lengths
ƒ Number of axis controllers
ƒ Motor powers
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