Lenze EVF9383 - Manual (Page 63)

Notes on project planning
Supply forms / electrical supply conditions
5.2
5.2.1
l
5.2−1 EDSVF9383V EN 7.1−04/2012
5.2 Notes on project planning
5.2.1 Supply forms / electrical supply conditions
Please observe the restrictions of each mains type!
Mains Controller operation Notes
With insulated
neutral point
(TT/TN systems) No restrictions Comply with controller ratings.
l Effective mains current: See
chapter "Technical data"
With insulated
neutral point
(IT systems) Not permitted. ˙
DC−supply via
+U
G
/−U
G
Permitted if the DC voltage is
symmetrical to PE The controller will be destroyed
when grounding +U
G
conductor or
−U
G
conductor.
5.2.2 Operation on public supply systems (compliance with EN 61000−3−2)
European standard EN 61000−3−2 defines limit values for the limitation of
harmonic currents in the supply system. Non−linear consumers (e.g.
frequency inverters) generate harmonic currents which "pollute" the
supplying mains and may therefore interfere with other consumers. The
standard aims at assuring the quality of public supply systems and reducing
the mains load.
)
Note!
The standard only applies to public systems. Mains which are
provided with a transformer substation of their own as in
industrial plants are not public and not included in the
application range of the standard.
If a device or machine consists of several components, the limit
values of the standard apply to the entire unit.
With the measures described, the controllers comply with the limit values
according to EN 61000−3−2.
Operation on public
supply systems EN 61000−3−2 Limitation of harmonic currents
Total power on the
mains
Compliance with the requirements 1)
< 1 kW With mains choke
> 1 kW No measures required
1) The additional measures mentioned have the effect that solely the controllers meet the
requirements of EN 61000−3−2. The machine/system manufacturer is responsible for the
compliance with the requirements for the machine/system!
Measures for compliance with
the standard