The Effective Parameters For Pt=2, 3,4,7,8; Adjustment Of Speed Loop Gain; Parameter Setting; Parameter Adjustment - Toshiba VFAS1 Instruction Manual

2. T

2.1 Adjustment of speed loop gain

2.1.1 Parameter setting

parameter
F460
F461
F462

2.1.2 parameter adjustment

Please refer to Instruction Manual E6581333 for details.
problem
- Motor speed is overshoot after
acceleration is finished.
- Motor speed is undershoot (goes
round to opposite direction) before
deceleration stop
- Motor is overshoot after rapid
acceleration

2.2 Adjustment of current loop gain

2.2.1 Parameter setting
parameter
F458
2.2.2 Parameter adjustment
Normally not need to set.
Please refer to Instruction Manual E6581333 for details.
problem
- Vibration of the motor or noise
caused by such the vibration in the
area where the output frequency is
around the base frequency.
*1 0(default) means
100 in case of the inverters of 200V-15kW or less and 400V-18.5kW or less
50 in case of the inverters of 200V-18.5kW or more and 400V-22kW or more
E
HE FFECTIVE PARAMETERS FOR
function
Speed loop gain
Speed loop stability coefficient
The filter of speed reference
- F460 to be adjusted as F460= %J * 12
- To increase F460 every 2 times (up to 48)
and to decrease F461 every half at the same
time. (refer to
- To increase F461 every 100 (up to 1000)
function
Current loop gain
- To decrease F458
(*1)
from 0
(refer to
range
1～9999
1～9999
0～100
countermeasure
E6581333 for details
range
1～1000
countermeasure
up to 25
E6581333 for details
)
4
P =2, 3,4,7,8
T
Default setting
12
100
35
Side effect
)
Default setting
0
Side effect
Ｅ６５８１９４７
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