C5: Asr - YASKAWA V1000 Series Technical Manual

• If the motor vibrates, increase C4-02
• If the motor response is sluggish (and possibly stalls), decrease C4-02.
Note: Auto-Tuning significantly improves drive performance at low speeds.
C4-03: Torque Compensation at Forward Start (OLV only)
n
Sets the amount of torque at start (when rotating forward) as a percentage of the motor rated torque. This parameter may improve the motor performance
during start. This feature functions only when starting a motor in the forward direction. Torque reference and motor flux can be ramped up quickly to
improve speed response during start. A setting of 0.0 disables this feature.
No.
C4-03 Torque Compensation at Forward Start
C4-04: Torque Compensation at Reverse Start (V/f Control)
n
This parameter may improve the motor performance during start. This feature functions only when starting a motor in the reverse direction. Torque
reference and motor flux can be ramped up quickly to improve speed response during start. A setting of 0.0 disables this feature.
No.
C4-04 Torque Compensation at Reverse Start
C4-05: Torque Compensation Time Constant (OLV only)
n
This parameter is the time delay that will be applied to the torque compensation parameters C4-03 and C4-04.
No.
C4-05 Torque Compensation Time Constant
C4-06: Torque Compensation Primary Delay Time 2 (V/f Control)
n
Increase settings when acceleration is complete, or if an overvoltage fault or error occurs with sudden changes in the load. Adjustment is not normally
required.
No.
C4-06 Torque Compensation Primary Delay Time 2
Note: If C4-06 is set to a relatively large value, be sure to also increase the setting in n2-03 (AFR Time Constant 2) proportionally.
u

C5: ASR

The automatic speed regulator (ASR) provides optimum performance during changes in motor speed or load by using speed feedback.
Note: C5 parameters will appear only when using V/f Conrol (A1-02 = 0) and the Pulse Train function is set to allow Simple PG in V/f (H6-01 = 3).
No. Parameter Name
A1-02 Control Method Selection
Terminal RP Pulse Train Input Function
H6-01
Selection
The figure below illustrates how speed control works when using Simple PG in V/f.
Frequency
Instruction
Positive/
Inverse-instruction
PG Pulse
C5-01/C5-03: ASR Proportional Gain 1/2 (Simple PG in V/f)
n
C5-02/C5-04:ASR Integral Time 1/2 (Simple PG in V/f)
n
C5-01 adjusts the speed in response to speed deviation, and softens the effect of changes in load. Speed response increases as the proportional gain is
increased. However, the load may become unstable if the ASR proportional gain is set too high. ASR Proportional Gain 2 is an additional proportional
gain adjustment that can be enabled by either a multi-function contact input (H1-oo = 77) or the ASR switching frequency (C5-07).
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
Parameter Name
Parameter Name
Parameter Name
Parameter Name
0: V/f Control
2: Open Loop Vector
5: PM Open Loop Vector
Selects the function of pulse train terminal RP.
0: Frequency reference
1: PID feedback value
2: PID setpoint value
3: Motor speed when using Simple PG V/f Control (can be set only when using motor
1 in V/f Control)
U1-01
Soft
starter
Rotation
Direction
Detection
DI
DI On
A/B Signal
PG/ Pulse
Converter Frequency
Detection
PI ×
Figure 5.26 Speed Control Using Simple V/f with PG
Setting Range
0.0 to 200.0
Setting Range
-200.0 to 0.0
Setting Range
0 to 200
Setting Range
0 to 10000
Setting Range
U1-16 U1-02
+
×
+
U6-03 U6-04
+
DI Off ASR
_
Frequency
Correction
U1-05
Frequency Detection with sign
C5-01
C5-02
C5-03
C5-04
C5-05
5.3 C: Tuning
Default
0.0%
Default
0.0%
Default
10 ms
Default
150 ms
Default
0
0
Voltage
Reference
V/f
Conversion
PWM
Frequency
Reference
Page
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−
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