YASKAWA Z1000 User Manual

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Parameters to Minimize Motor Hunting and Oscillation
In addition to the parameters discussed on pages 200 and 201, 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, L3-11)
• 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
202
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual

YASKAWA Z1000 Specifications

General

Model	Z1000
Category	Controller
Humidity	95% RH or less (non-condensing)
Control Method	V/F Control
Frequency Range	400 Hz
Protection	Overcurrent, Overvoltage, Undervoltage, Overheat
Communication Options	Modbus
Operating Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Altitude	Up to 1000 meters without derating
Cooling Method	Forced Air
Enclosure Rating	IP20
Voltage Class	200V, 400V