Lenze 8615E - Manual (Page 47)

6.3 Motor filter
Advantages of using a motor filter:
. The motor filter capacitive currents by
cable capacitances.
l
The slope of the motor voltage is limited to 500
Motorfilters are always required for:
l
unscreened cables than 1
l
screened cables longer than 50m.
when using motors do not have suitable insulation for
controller Operation. data of the motor manufacturer.)
Please note:
the motor filter as as possible to the controller
Maximum cable length 5 m
Connect and of the motor filter only to the controller
terminals of the same designation.
Select the control mode control”
(CO06 = -0-). The control “magnetizing-current control” is not
permissible.
The frequency must be 4 kHz.
The max. permissible output frequency is 300 Hz.
The controller is loaded in addition to the motor with
approx. 12% of the rated filter
The voltage drop the motor filter at rated and
rated frequency = 50 Hz) is 2 to 3% of the controller output
voltage.
For motor cable lengths 100 m (screened) and 200 m
screened) a sine filter should be used.
With unscreened motor cables it should be tested whether the
with the interference required for the
CE-EMC conformity.
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