YASKAWA GA700 Technical Manual page 586

11.2 A: Initialization Parameters
Adjustment
description
• Improving speed
C3-01 [Slip
accuracy Compensation Gain]
• Increasing motor
excitation sound
C6-02 [Carrier Frequency
• Hunting and oscillation
Selection]
suppression at low
speeds (10 Hz or lower)
E1-08 [Mid Point A
Voltage]
• Increasing torque and
speed response at low
speeds
E1-10 [Minimum Output
• Shock suppression
Voltage]
during startup
*1 If C4-02 [Torque Compensation Delay Time] is high, the current may increase during startup. Adjust the current during startup while
checking it.
*2 The default setting differs depending on settings for C6-01 [Normal / Heavy Duty Selection] and o2-04 [Drive Model Selection].
*3 Set for 200 V class drives. Voltage is double for 400 V class drives.
Closed Loop Vector Control Method
Table 11.18 Adjustment of Drive Control (Closed Loop Vector Control Method)
Adjustment
description
C5-01 (ASR Proportional
Gain 1)
• Torque, increasing
speed response
• Hunting, oscillation
C5-03 (ASR Proportional
suppression
Gain 2)
C5-02 (ASR Integral
Time 1)
• Torque, increasing
speed response
• Hunting, oscillation
C5-04 (ASR Integral
suppression
Time 2)
Change the ASR
proportional gain and
C5-07 (ASR Gain
ASR integral time in
Switchover Frequency)
accordance with the
output frequency.
• Hunting, oscillation
C5-06 (ASR Delay Time)
suppression
Elevator Start/Stop and Accel/Decel Time Shock Reduction
Shock when starting and stopping the elevator, and when accelerating and decelerating is an issue for passenger
elevator applications. Adjust the following parameters when shock affects ride quality.
S-Curve Characteristics, Accel & Decel Time
Adjustment parameter
C1-01, C1-03, C1-05, C1-07
C1-02, C1-04, C1-06, C1-08
C2-01
586
Parameter Number
• Increase the setting
value if speed is slow.
• Reduce the setting
value if speed is fast.
• Increase the setting
value if there is a
marked motor
excitation sound.
• If hunting and
oscillation occur at low
speeds, reduce the
setting value.
• Increase the setting
value when torque and
speed response are
slow.
• Reduce the setting
value if there is marked
shock during drive
startup.
Parameter Number
• Increase the setting
value when torque and
speed response are
slow.
• Reduce the setting
value when hunting and
oscillation occurs.
• Reduce the setting
value when torque and
speed response are
slow.
• If hunting, oscillation
occurs, increase the
setting value.
When ASR proportional
gain or integral time
cannot be established for
low speed or high speed,
switch in accordance with
the output frequency.
• Increase the setting
value when oscillation
is likely to occur due to
poor machine rigidity.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Solution Default Setting
11.0 V
2.0 V
Solution Default Setting
20.00
0.500 s
0.0 Hz
(Do not switch)
0.004 s
Acceleration Time 1 to 4
Deceleration Time 1 to 4
S-Curve Time @ start of Accel
Suggested Setting
1.0 0.5 - 1.5
*2 1 - F
12.0 V to 13.0 V
*3
2.0 V to 3.0 V
*3
Suggested Setting
10.00 - 50.00
0.300 to 1.000 seconds
0.0 to Maximum
frequency
0.004 to 0.020 seconds
Name
*3
*3