D6: Field Weakening And Field Forcing - YASKAWA P1000 Technical Manual

5.4 d: Reference Settings
No.
d4-10
Setting 0: Lower Limit is Determined by d2-02 or Analog Input
The higher value between d2-02 and an analog input programmed for Frequency bias (A1, A2, A3) determines the lower
frequency reference limit.
Note: When using the External Reference 1/2 (H1-oo = 2) to switch between the Up/Down function and an analog input as the reference source,
the analog value becomes the lower reference limit when the Up/Down command is active. Set d4-10 to 1 to make the Up/Down function
independent of the analog input value.
Setting 1: Lower Limit is Determined by d2-02
Only parameter d2-02 sets the lower frequency reference limit.
u

d6: Field Weakening and Field Forcing

Field Weakening
The Field Weakening function reduces the output voltage to a predefined level to reduce the energy consumption of the motor.
To activate the Field Weakening function, use a digital input programmed for H1-oo = 63. Only use Field Weakening with
a known and unchanging light load condition. Use the Energy Saving function (b8-oo parameters) when Energy Saving for
various different load conditions is required.
n d6-01: Field Weakening Level
Sets the level to which the output voltage is reduced when Field Weakening is activated. Set as percentage of the maximum
output voltage.
No.
d6-01
n d6-02: Field Weakening Frequency Limit
Sets the minimum output frequency at which field weakening can be activated. Field Weakening cannot be activated for
frequencies below d6-02.
No.
d6-02
190
Parameter Name
Up/Down Frequency Reference Limit Selection
Parameter Name
Field Weakening Level
Parameter Name
Field Weakening Frequency Limit
Setting Range
0, 1
Setting Range
0 to 100%
Setting Range
0 to 400.0 Hz
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
Default
0
Default
80%
Default
0.0 Hz