YASKAWA G7 Series Technical Manual page 348

Multi-function Contact Input Functions (H1-01 to H1-10)
Setting
Value
Speed control disable setting for V/f control with PG
D OFF: Use speed control V/f control with PG
ON: Do not use speed control for V/f control with PG
Speed control integral reset
E
Enables switching between PI and P control for the speed control loop.
Speed control (ASR) proportional gain switch (switching between C5-01 and C5-03)
77 OFF: Use proportional gain in C5-01
ON: Use proportional gain in C5-03
Speed Control (ASR) Gain Adjustment for Vector Control
Use the following procedure to adjust C5-01 and C5-03 with the mechanical system and actual load con-
nected.
At zero-speed, increase C5-01
(ASR P Gain 1) until there is no oscillation.
At zero-speed, decrease C5-02
(ASR I Time 1) until there is no oscillation.
Does oscillation develop when the motor
operates at the maximum normal operating
speed?
Adjustment completed.
(When there is higher-level position control,
adjust the position loop gain so that
overshooting/undershooting doesn't occur.)
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Function
YES
NO
Control Methods
V/f
V/f with
PG
No Yes
No No
No No
Decrease C5-01 (ASR P Gain 1).
Increase C5-02 (ASR I Time 1).
Open Open
Loop Flux Loop
Vector Vector Vector
1 2
No No No
No Yes Yes
No Yes Yes