Lenze 9300 vector - 5.1.4 Supply forms; electrical supply conditions; 5.1.5 Interaction with compensation equipment

Wiring of the standard device
Important notes
Supply forms / electrical supply conditions
5
5.1
5.1.4

5.1−4
EDSVF9383V EN 6.0−11/2009
5.1.4 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)
Possible if the controller is protected
in the event of an earth fault in the
mains supply
l by means of suitable equipment
for detecting an earth fault and
l the controller is disconnected
directly from the mains
Safe operation cannot be
guaranteed in the event of an earth
fault at the inverter output.
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.
5.1.5 Interaction with compensation equipment
ƒ Controllers only consume very little reactive power of the fundamental
wave from the AC supply mains. Therefore, a compensation is not
required.
ƒ If the controllers are connected to a supply system with compensation
equipment, this equipment must comprise chokes.
– For this, contact the supplier of the compensation equipment.
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