Omron Q2A Series Technical Manual page 582

12.3 C: TUNING
Note:
The drive usually sets Motor 2 ASR with C5-21 [M2 ASR PGain 1] and C5-22. You can also use C5-24 [M2 ASR ITime 2] as an
alternative to C5-22 when the speed is less than or equal to the frequency set in C5-27 [M2 ASR Gain Switchover Freq].
■
C5-23 M2 ASR PGain 2
No.
Name
(Hex.)
C5-23 M2 ASR PGain 2
(0358)
RUN
The speed response increases as the weight of the load increases. Usually, the gain increases with larger loads.
Too much gain causes vibration.
■
C5-24 M2 ASR ITime 2
No.
Name
(Hex.)
C5-24 M2 ASR ITime 2
(0359)
RUN
An integral time that is too long will decrease the responsiveness of the speed control and decrease drive response
to dynamic changes in motor load. An integral time that is too short can cause oscillation.
Note:
The drive usually sets Motor 2 ASR with C5-21 [M2 ASR PGain 1] and C5-22 [M2 ASR ITime 1]. You can also use C5-24 can also be
used instead of C5-22 when the speed is less than or equal to the frequency set in C5-27 [M2 ASR Gain Switchover Freq].
■
C5-25 M2 ASR Limit
No.
Name
(Hex.)
C5-25 M2 ASR Limit
(035A)
If the motor rated slip is high, it could be necessary to increase the setting to provide correct motor speed control.
Use U6-04 [ASR Output] to make sure that ASR is operating at the limit set in this parameter. When ASR is
operating at the limit, correctly set the PG signal and these parameters before you make changes to C5-25:
• F1-31 [Enc2 Pulse Count (PPR)]
• F1-33 [Enc2 Gear Teeth1]
• F1-34 [Enc2 Gear Teeth2]
■
C5-26 M2 ASR Delay Time
No.
Name
(Hex.)
C5-26 M2 ASR Delay Time
(035B)
If you have a load with low rigidity or if oscillation is a problem, increase this setting in 0.01 unit increments.
■
C5-27 M2 ASR Gain Switchover Freq
No.
Name
(Hex.)
C5-27 M2 ASR Gain Switchover
Freq
(035C)
Switching the proportional gain and integral time in the low or high speed range can help operation become
stable. A good switching point is 80% of the frequency where oscillation occurs or at 80% of the maximum output
frequency.
Note:
An MFDI set for H1-xx = 45 [MFDI Function Select = ASR Gain Switch] will have priority over the ASR gain switching frequency.
582
V/f CL-V/f OLV CLV AOLV
Sets the gain to adjust ASR response for motor 2.
V/f CL-V/f OLV CLV AOLV
Sets the ASR integral time for motor 2.
V/f CL-V/f OLV CLV AOLV
Sets the ASR output limit for motor 2 as a percentage of E1-04 [Max Output Frequency].
V/f CL-V/f OLV CLV AOLV
Sets the filter time constant for the time from the speed loop to the torque command output for
motor 2. Usually it is not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets the frequency where the drive will switch between these parameters:
C5-21 and C5-23 [M2 ASR PGain 1 and M2 ASR PGain 2]
C5-22 and C5-24 [M2 ASR ITime 1 and M2 ASR ITime 2]
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
Default
(Range)
Determined by E3-01
(0.00 - 300.00)
Default
(Range)
Determined by E3-01
(0.000 - 60.000 s)
Default
(Range)
5.0%
(0.0 - 20.0%)
Default
(Range)
Determined by E3-01
(0.000 - 0.500 s)
Default
(Range)
0.0
(0.0 - 400.0)