The Effective Parameters For Pt=0, 1; Current Differential Gain For Pt=0,1; Parameter Setting; Parameter Adjustment - Toshiba VFAS1 Instruction Manual

3. T
3.1 Current differential gain

3.1.1 Parameter setting

parameter
F467

3.1.2 Parameter adjustment

To improve the motor unstable, it is effective to adjust F467 even if F467=1, especially motor unstable at no
load and small inertia condition.
The table below shows the tendency of phenomenon at each inertia and F467 conditions.
Generally, the possibility of motor vibration is increased in case inertia and F467 are both small.
inertia
small
big
E
HE FFECTIVE PARAMETERS FOR
function
Current differential gain
Acceleration
F467
performance
small Increase vibration
big Decrease vibration
Decrease speed
small
overshoot
Increase speed
big
overshoot
PT=0, 1, 5
range
0:Disabled
1:Enabled(Low gain)
2: Enabled(Middle
gain)
3: Enabled(High gain)
Deceleration
performance
Increase vibration
Decrease vibration
Current ripple is big
Current ripple is
small
8
Ｅ６５８１９４７
Default setting
0
Disturbance
response
Increase vibration
Decrease
vibration
Fast response
Slow response