Light -Load High-Speed Operation Function; Related Parameters - Toshiba TOSVERT VF-S15 Instruction Manual

3. Light –load high-speed operation function

3.1 Related parameters

Commu
Title nication
No.
Offset of light load measurement
f327
0327
torque
Light-load high-speed operation
f328 0328
selection
Light-load high-speed learning
f329 0329
function
Automatic light-load high-speed
f330 0330
operation frequency
Light-load high-speed operation
f331 0331
switching lower limit frequency
Light-load high-speed operation
f332 0332
load waiting time
Light-load high-speed operation
f333 0333
load detection time
Light-load high-speed operation
f334 0334
heavy load detection time
Switching load torque during power
f335 0335
running
Heavy-load torque during power
f336 0336
running
Heavy-load torque during constant
f337 0337
power running
Switching load torque during
f338 0338
regenerative braking
Frequency switching
f339
0339 Acceleration/deceleration at light
load
(*1) Default setting values vary depend on the setup menu setting.
Note 1: Parameters f335 to f338 need adjustment according to the load.
The learning function of VF-S15 simplifies the adjustment of light-load high-speed operation, just
to execute the forward run (up) or reverse run (down) operation. (f328=3, 4 only)
Note 2: If the judgment whether or not switching to light-load high-speed operation differs from when the
motor is cold and when the motor is hot, set the value of f327 larger. Usually, it is set with the
default setting value.
Note 3: When operating light-load high-speed operation, use vector control. Set au2 (Torque boost
setting macro function) =2(Vector control + auto-tuning), or set motor related parameters f410
to f417, and pt (V/F control mode selection) =3(Vector control).
Function
0-2000 (%)
0:Disabled
1: High-speed operation speed set automatically
(Power running at F command: Increase)
2: High-speed operation speed set automatically
(Power running at R command: Increase)
3: High-speed operation speed set with f330
(Power running at F command: Increase)
4: High-speed operation speed set with f330
(Power running at R command: Increase)
0:No learning
1:Forward run learning
2:Reverse run learning
30.0 - ul (Hz)
5.0 - ul (Hz)
0.0 - 10.0 (s)
0.0 - 10.0 (s)
0.0 - 10.0 (s)
-250 - 250%
-250 - 250%
-250 - 250%
-250 - 250%
0 - ul (Hz)
Adjustment range
３
E6581871
Minimum
setting unit
Default setting
(Panel/
Communication)
- 1000
-
0
- 0
0.1/0.01 (*1)
0.1/0.01 40.0
0.1/0.1 0.5
0.1/0.1 1.0
0.1/0.1 0.5
1/0.01 50
1/0.01 100
1/0.01 50
1/0.01 50
0.1/0.01 0.0