Yaskawa Z1000U - Manual (Page 188)

u Parameters to Minimize Motor Hunting and Oscillation
In addition to the parameters discussed on pages 186 and 187 , parameters in Table 5.3 indirectly affect motor hunting and
oscillation.
Table 5.3 Parameters that Affect Control Performance in Applications
Name
(Parameter No.)
Application
Accel/Decel Time
(C1-01 through C1-11)
Adjusting accel and decel times will affect the torque presented to the motor during acceleration or deceleration.
S-Curve Characteristics
(C2-01 and C2-02)
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 when the load is too heavy or during sudden acceleration/
deceleration.
• Adjustment is not normally necessary because Stall Prevention is enabled as a default.
5.2 Motor Performance Fine-Tuning
188 YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual