5
VFD-V Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-45
05-26 Low-Speed Excitation Magnet Compensation
a
Factory setting 10
Settings 0~100%
This parameter determines the amount of current applied to the motor to excite the
magnetic field during vector control.
05-27 The Pre-Controlled Torque Feedback
a
Factory setting 10
Settings 0~100%
Used with the vector control to help with low speed torque control. The number is a
gain and should be increased as more torque is needed.
05-28 Time Delay of the Pre-Controlled Torque Feedback
a
Factory setting 0.010
Settings 0.000~2.000 sec
The parameter determines the filtering time of Pr. 05-27, before any action is taken.
05-29 Vibration Compensation Factor
a
Factory setting 100
Settings 0~10000
This parameter will minimize vibration at low speed during vector control. The value of
the parameter is a GAIN. The higher the value, the more vibration dampening that will
occur.
05-30 R1 Detection Frequency
a
Factory setting 00000
Settings Bit0=0 no R1 detection
Bit0=1 R1 detection
This parameter selects the frequency of detection for R1. If Pr05-30 is set to 1, the
motor’s line to line resistance will be detected during each “RUN” command.
Note: If the response time to a “RUN” command is critical, than Pr.05-30 should be set to 0.
05-31 Dynamic Response Gain
a
Factory setting 0.0
Settings 0.0~100.0%
This parameter is used to avoid frequency decrease rapidly when increasing load suddenly.
05-32 Response of current control gain
a
Factory setting 10
Settings 0~100%
This parameter should be used with 05-28 to increase running smooth in low speed and
won’t have run-stop-run-stop situation.
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