YASKAWA GA800 - Page 189

Parameter Details
2
2.2 A: Initialization Parameters
YASKAWA TOEPYAIGA8002B GA800 Drive Programming 189
Adjustment description Parameter Number Possible Solutions Default Recommended Setting
Change the ASR proportional gain
and ASR integral time in
accordance with the output
frequency.
C5-07 [ASR Gain Switchover
Frequency]
If you cannot establish ASR
proportional gain or integral time
for low speed or high speed, switch
as specified by the output
frequency.
0.0 Hz
(Do not switch)
0.0 Hz to Maximum frequency
• Prevent hunting and oscillation C5-06 [ASR Delay Time]
• If there is unsatisfactory
machine rigidity and oscillation
is possible, increase the setting
value.
0.004 s 0.004 s to 0.020 s
Elevator Start/Stop and Accel/Decel Time Shock Reduction
S-Curve Characteristics, Accel & Decel Time
Adjustment Parameter Name
C1-01, C1-03, C1-05, C1-07 Acceleration Time 1 to 4
C1-02, C1-04, C1-06, C1-08 Deceleration Time 1 to 4
C2-01 S-Curve Time @ Start of Accel
C2-02 S-Curve Time @ End of Accel
C2-03 S-Curve Time @ Start of Decel
C2-04 S-Curve Time @ End of Decel
Figure 2.5 S-curve Characteristics, Accel & Decel Time
Note:
• When decreased operation times are necessary for the application, for example with cranes and hoists, do not use S-curve characteristic
times.
• The default setting for C2-04 [S-Curve Time @ End of Decel] will be 0.00 seconds. The default setting for other S-curve characteristics will
be 0.20 seconds. Set the acceleration/deceleration times and S-curve characteristic time correctly for acceleration/deceleration start up and
end. The recommended setting of the S-curve characteristics time is 0.2 to 1.0 seconds.
• When you use the C1-11 [Accel/Decel Time Switchover Freq], you can switch the acceleration/deceleration rate automatically during
acceleration/deceleration. The default setting is disabled.
When the Output Frequency ≥ C1-11, operate at the acceleration and deceleration times set in C1-01 and C1-02
When the Output Frequency < C1-11, operate at the acceleration and deceleration times set in C1-07 and C1-08
• During low speed operation, if the Output Frequency < E1-09 [Minimum Output Frequency] in the S-Curve Time @ Start of Decel, the
drive will cancel the S-curve characteristics and will do DC Inject Braking at Stop (zero speed control).
Dwell Function at Start
Adjustment Parameter Name
b6-01 Dwell Reference at Start
b6-02 Dwell Time at Start
H2-xx = 5 Frequency Detection 2