Danfoss VLT AutomationDrive EZ FC 321 Programming Manual page 279

VLT® AutomationDrive EZ FC 321
Programming Guide
Parameter 14-55 Output Filter
Table 510: Parameter 14-55 Output Filter
14-55 Output Filter
Default Value: [0] No filter
Conversion Index: -
This parameter cannot be adjusted while the motor is running.
Reset the drive after selecting [2] Sine-wave filter fixed.
OVERHEATING OF DRIVE
When using sine-wave filters, there is a risk of overheating of the drive, which can result in personal injury and equipment dam-
age. Always set parameter 14-55 Output Filter to [2] Sine-wave fixed when using a sine-wave filter.
Select the type of output filter connected.
Op- Name Description
tion
[0]* No filter This is the default setting and should be used with dU/dt filters or high frequency common mode (HFCM)
filters.
[1] Sine-wave This setting is only for backwards compatibility. It enables operation with flux control principle when pa-
filter
rameter 14-56 Capacitance Output Filter and parameter 14-57 Inductance Output Filter are programmed with
the output filter capacitance and inductance. It does not limit the range of the switching frequency.
[2] Sine-Wave This parameter sets a minimum allowed limit to the switching frequency and ensures that the filter is op-
Filter Fixed erated within the safe range of switching frequencies. Operation is possible with all control principles. For
flux control principle, program parameter 14-56 Capacitance Output Filter and parameter 14-57 Inductance
Output Filter (these parameters have no effect in VVC
which gives the lowest acoustic noise in the filter.
Parameter 14-56 Capacitance Output Filter
Table 511: Parameter 14-56 Capacitance Output Filter
14-56 Capacitance Output Filter
Default value: Size related
Conversion index: -7
Compensation function of the LC filter requires the per-phase equivalent star-connected capacitance of the filter (3 times the ca-
pacity between 2 phases when capacitance is delta connection). Set the capacitance of the output filter. The value can be found on
the filter label.
This is required for correct compensation in flux mode (parameter 1-01 Motor Control Principle).
Danfoss A/S © 2021.08
Parameter Type: Option
Data Type: Uint8
N O T I C E
N O T I C E
C A U T I O N
Parameter type: Range, 0.1 - 6500 uF
Data type: Uint16
N O T I C E
Parameter Descriptions
Setup: All set-ups
Change during operation: False
+
and U/f). The modulation pattern is set to SFAVM,
Setup: All setups
Change during operation: False
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