YASKAWA AC Drive-A1000 User Manual

n
d5-04: Speed Limit
Sets the speed limit during torque control if parameter d5-03 is set to 2. Refer to Speed Limitation and Speed Limit Bias on
page 180.
No. Parameter Name Setting Range Default
d5-04 Speed Limit -120 to 120% 0%
n
d5-05: Speed Limit Bias
Applies a bias set as a percentage of the maximum output frequency to the speed limit value. Refer to Speed Limitation and
Speed Limit Bias on page 180.
No. Parameter Name Setting Range Default
d5-05 Speed Limit Bias 0 to 120% 10%
n
d5-06: Speed/Torque Control Switchover Time
Sets the delay time for switching between Speed Control and Torque Control.
No. Parameter Name Setting Range Default
d5-06 Speed/Torque Control Switchover Time 0 to 1000 ms 0 ms
n
d5-08: Unidirectional Speed Limit Bias
Selects how the speed limit bias is applied.
No. Parameter Name Setting Range Default
d5-08 Unidirectional Speed Limit Bias 0, 1 1
Setting 0: Disabled
The speed limit bias is applied in the speed limit direction and the opposite direction.
Setting 1: Enabled
The speed limit bias is applied in the opposite direction of the speed limit only.
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.
Field Forcing
The Field Forcing function compensates the delaying influence of the motor time constant when changing the excitation current
reference and improves motor responsiveness. Field Forcing is ineffective during DC Injection Braking.
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. Parameter Name Setting Range Default
d6-01 Field Weakening Level 0 to 100% 80%
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. Parameter Name Setting Range Default
d6-02 Field Weakening Frequency Limit 0 to 400.0 Hz 0.0 Hz
5.4 d: Reference Settings
182
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual

YASKAWA AC Drive-A1000 Specifications

General

Brand	YASKAWA
Model	AC Drive-A1000
Category	Controller
Language	English