YASKAWA GA700 - Page 691

Parameter Details
11
11.2 A: Initialization Parameters
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 691
Adjustment
description
Parameter Number Solution Default Setting Suggested Setting
• Increase speed response
• Increase speed stability
C3-02 [Slip
Compensation Delay
Time]
• When speed response is
slow, decrease the
setting value.
• If speed is not stable,
increase the setting
value.
200 ms 100 - 500 ms
• Improve speed
accuracy
C3-01 [Slip
Compensation Gain]
• If speed is too slow,
increase the setting
value.
• If speed is too fast,
decrease the setting
value.
1.0 0.5 - 1.5
• Increase motor
excitation sound
• Prevent hunting and
oscillation at low-range
speeds (10 Hz to or
lower)
C6-02 [Carrier Frequency
Selection]
• If there is a loud motor
excitation sound,
increase the setting
value.
• If there is hunting or
oscillation at low
speeds, decrease the
setting value.
*2
1 - F
• Increase torque and
speed response at low
speeds
• Prevent shock during
start up
E1-08 [Mid Point A
Voltage]
• If the torque and speed
response are slow,
increase the setting
value.
• If there is a large shock
during start up,
decrease the setting
value.
11.0 V
*3
12.0 V to 13.0 V
*3
E1-10 [Minimum Output
Voltage]
2.0 V
*3
2.0 V to 3.0 V
*3
*1 If the value for C4-02 [Torque Compensation Delay Time] is high, the current can increase during start up. Adjust and check the
current during start up.
*2 The default setting changes when the settings for C6-01 [Normal / Heavy Duty Selection] and o2-04 [Drive Model 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 11.21 Adjustment of Drive Control (Closed Loop Vector Control Method)
Adjustment
Description
Parameter Number Solution Default Setting Suggested Setting
• Torque, increase speed
response
• Prevent hunting and
oscillation
C5-01 [ASR Proportional
Gain 1]
• If torque and speed
response are slow,
increase the setting
value.
• If there is hunting or
oscillation, decrease the
setting value.
20.00 10.00 to 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 to 1.000 seconds
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 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 to 0.020 seconds
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: