Notes On Project Planning; Supply Forms / Electrical Supply Conditions; Operation On Public Supply Systems (Compliance With En 61000−3−2) - Lenze 9300 Series System Manual

5.2

Notes on project planning

5.2.1

Supply forms / electrical supply conditions

5.2.2 Operation on public supply systems (compliance with EN 61000−3−2)
Measures for compliance with
the standard
EDSVF9383V EN 7.1−04/2012
Supply forms / electrical supply conditions
Please observe the restrictions of each mains type!
Mains Controller operation
With insulated No restrictions
neutral point
(TT/TN systems)
With insulated Not permitted.
neutral point
(IT systems)
DC−supply via Permitted if the DC voltage is
+U /−U symmetrical to PE
G G
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 EN 61000−3−2
supply systems
Total power on the
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!
l
Notes on project planning
Notes
Comply with controller ratings.
l
Effective mains current: See
chapter "Technical data"
˙
The controller will be destroyed
when grounding +U
−U conductor.
G
Limitation of harmonic currents
Compliance with the requirements
mains
< 1 kW With mains choke
> 1 kW No measures required
5.2
5.2.1
conductor or
G
1)
5.2−1