YASKAWA GA700 Series

12.2 A: Initialization Parameters
636 YASKAWA SIEPC71061705H GA700 Series Technical Manual
*2 The default setting changes when the settings for C6-01 [Normal / Heavy Duty Selection] and o2-04 [Drive Model (KVA) Selection]
change.
*3 This is the setting for 200 V class drives. Multiply the voltage by 2 for 400 V class drives.
Closed Loop Vector Control Method
Table 12.21 Adjustment of Drive Control (Closed Loop Vector Control Method)
Adjustment description Parameter Number Possible Solutions Default Recommended Setting
• Torque, increase speed
response
• Prevent hunting and
oscillation
C5-01 [ASR Proportional Gain 1]
• If the torque and speed
response are slow, increase the
setting value.
• If there is hunting or
oscillation, decrease the
setting value.
20.00 10.00 - 50.00
C5-03 [ASR Proportional Gain 2]
• Torque, increase speed
response
• Prevent hunting and
oscillation
C5-02 [ASR Integral Time 1]
• If torque and speed response
are slow, decrease the setting
value.
• If there is hunting or
oscillation, increase the setting
value.
0.500 s 0.300 s to 1.000 s
C5-04 [ASR Integral Time 2]
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
Shock when you start and stop the elevator and when you accelerate and decelerate is an issue for passenger
elevator applications. If shock has an effect on the quality of the ride, adjust these parameters:
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 12.5 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).