D6: Field Weakening And Field Forcing - YASKAWA FSDrive-MV1000 Parameter Manual

◆ d6: Field Weakening and Field Forcing

Field Weakening
The Field Weakening function reduces the output voltage to a pre-defined level in order to reduce the energy
consumption of the motor. It can be activated using a contact input programmed for H1-
should only be used with a known and unchanging light load condition.
Field Forcing
The Field Forcing function compensates for the delaying influence of the motor time constant when changing the
excitation current reference. Field Forcing can improve the motor responsiveness. It is ineffective during DC Injection
Braking.
d6-01: Field Weakening Level
■
Sets the level to what the output voltage is reduced when Field Weakening is activated. Set as percentage of the drive
maximum output voltage.
No.
d6-01
d6-02: Field Weakening Frequency Limit
■
Sets the minimum output frequency for which field weakening can be activated. For frequencies below d6-02, Field
Weakening cannot be activated.
No.
d6-02
■ d6-03: Field Forcing Selection
Enables or disables the Field Forcing function.
No.
d6-03
Setting 0: Disabled
Setting 1: Enabled
■ d6-06: Field Forcing Limit
Sets the maximum level to what the Field Forcing function can boost the excitation current reference. The value is set as
a percentage of the motor no load current.
No.
d6-06
Note: Adjustment is not normally required.
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Name
Field Weakening Level
Name
Field Weakening Frequency Limit
Name
Field Forcing Selection
Name
Field Forcing Limit
2.4 d: Reference Settings
Setting Range
0 to 100%
Setting Range
0.0 to 120.0 Hz
Setting Range
0 or 1
Setting Range
100 to 400%
= 63. Field Weakening
Default
80%
Default
0.0 Hz
Default
0
Default
200%
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