YASKAWA CIPR-GA50C series Technical Manual page 471

Table 12.22 Adjustment of Drive Control (Open Loop Vector Control Method)
Adjustment description
• Torque, increase speed
response
n2-01 [Automatic Freq Regulator
• Prevent hunting and
Gain]
oscillation at middle-range
speeds (10 Hz to 40 Hz)
• Torque, increase speed
response
C4-02 [Torque Compensation
Delay Time]
• Prevent hunting and
oscillation
• Increase speed response
C3-02 [Slip Compensation Delay
Time]
• Increase speed stability
• Improve speed accuracy
C3-01 [Slip Compensation Gain]
• Increasing motor excitation
sound
C6-02 [Carrier Frequency
• Prevent hunting and
Selection]
oscillation at low-range speeds
(10 Hz to or lower)
E1-08 [Mid Point A Voltage]
• Increase torque and speed
response at low speeds
E1-10 [Minimum Output Voltage]
• Prevent shock during start up
*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 (KVA) Selection]
change.
*3 This is the setting for 200 V class drives. Multiply the voltage by 2 for 400 V class drives.
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
C1-01, C1-03, C1-05, C1-07
C1-02, C1-04, C1-06, C1-08
C2-01
C2-02
C2-03
C2-04
YASKAWA SIEPC71061753A GA500 Technical Manual
Parameter Number Possible Solutions
• If torque and speed response
are slow, decrease the setting
value.
• If there is hunting or
oscillation, increase the setting
value.
• If torque and speed response
are slow, decrease the setting
value.
*1
• If there is hunting or
oscillation, increase the setting
value.
• When speed response is slow,
decrease the setting value.
• If speed is not stable, increase
the setting value.
• If speed is too slow, increase
the setting value.
• If speed is too fast, decrease
the setting value.
• 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.
• 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.
Figure 12.4 S-curve Characteristics, Accel & Decel Time
12.2 A: Initialization Parameters
Default
1.00
20 ms
200 ms
1.0
*2
*3
11.0 V
*3
2.0 V
Acceleration Time 1 to 4
Deceleration Time 1 to 4
S-Curve Time @ Start of Accel
S-Curve Time @ End of Accel
S-Curve Time @ Start of Decel
S-Curve Time @ End of Decel
Recommended Setting
0.50 - 2.00
20 ms to 100 ms
100 ms to 500 ms
0.5 - 1.5
1 - F
*3
12.0 V to 13.0 V
*3
2.0 V to 3.0 V
Name
12
471