Table 5.2 Parameters that Affect Control Performance in Applications
Name (Parameter No.) Application
Accel/Decel Time (C1-01
through C1–04; 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
122
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
2/6/2008-14:44
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