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Motor Hunting and Oscillation Control Parameters
The following parameters indirectly affect motor hunting and oscillation.
Table 5.2 Parameters that Affect Control Performance in Applications
Name (Parameter No.) Application
Accel/Decel Time (C1-01
through C1-09)
Adjusting accel and decel times will affect the torque presented to the motor during
acceleration or deceleration.
S-Curve Characteristics
(C2-01 through C2-04)
Prevents shock at the beginning and end of acceleration and deceleration.
Jump Frequency (d3-01
through d3-04)
Skips over the resonant frequencies of connected machinery.
Analog Filter Time Constant
(H3-13)
Prevents fluctuation in the analog input signal due to noise.
Stall Prevention (L3-01
through L3-06)
• Prevents
motor speed loss and overvoltage. Used when the load is too heavy and
also during sudden acceleration/deceleration.
•
Adjustment is not normally required because Stall Prevention is enabled as a
default.
Disable
Stall
Prevention
during
deceleration (L3-04 = “0”) when using
a braking resistor.
5.2 Motor Performance Fine Tuning
132
YASKAWA ELECTRIC TOEP C710606 25D YASKAWA AC Drive J1000 Installation & Start-Up Manual
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