Omron SYSDRIVE 3G3FV, User Manual, Page: 163 / 400

5-41
H
Adjusting Speed Loop (ASR) Responsiveness (C5-06) and Integral
Limit (C5-08)
Normally it isn’t necessary to make this adjustment, but parameter C5-06 can be used when adjusting
the gain doesn’t remove motor vibration, or adjusting the gain removes vibration but results in poor re-
sponsiveness. A high C5-06 setting lowers the responsiveness of the speed control loop, but makes it
difficult for vibration to develop. This parameter cannot be changed during operation.
Parameter Display name Setting range Units Default Valid access levels*
number
p y g g
setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C5-06 ASR Delay Time 0.000 to 0.500 s 0.004 Not applicable. A
Note A: Advanced
Parameter Display Setting range Units Default
Valid access levels*
number
p y
name
g g
setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C5-08 ASR 1 Limit 0 to 400 --- 400 X X X A
The setting of C5-08 does not normally need to be changed. It is used to set an upper limit for the integral
used in speed control. Set a smaller value if rapid changes in the load can damage the load or cause the
motor to become disengaged due to Inverter responsiveness. If the setting is too small, however, it may
become impossible to perform speed control.
5-4-5 Adjusting Speed Control Loop (ASR) Gain
H
Gain Adjustment Procedure
Use the following procedure to adjust the gain with the mechanical system and actual load connected.
At zero-speed, increase C5-01 (ASR P Gain 1)
until there is no vibration.
At zero-speed, decrease C5-02 (ASR I Time 1)
until there is no vibration.
Does vibration develop when the motor operates
at the maximum normal operating speed?
Adjustment completed.
(When there is higher-level position control, ad-
just the position loop gain so that overshooting/
undershooting doesn’t occur.)
NO
YES
Decrease C5-01 (ASR P Gain 1).
Increase C5-02 (ASR I Time 1).
H
Fine Adjustments
When you want even finer gain adjustment, adjust the gain while observing the speed waveform. Pa-
rameter settings like those shown in the following table will be necessary to observe the speed wave-
form.
Basic Operation
Chapter 5