Toshiba VF-S15 Instruction Manual page 198

[Selection 2: Setting vector control and auto-tuning independently]
Set vector control, automatic torque boost, energy saving and auto-tuning individually.
After setting pt (V/F control mode selection), auto-tuning starts.
Set the auto-tuning parameter f400 to 2 (Auto-tuning enabled)
[Parameter setting]
f400
Set f400 to 2 before the start of operation. Auto-tuning is performed at the start of the motor and set
f402, f412.
● Precautions on auto-tuning
6
[Selection 3: Setting vector control and motor constant automatically]
After setting vl, vlv, f405, f415 and f417, motor constants calculated automatically.
f402, f412 and f416 are set automatically.
Set the motor constant parameter f400 to 4 (auto calculation)
Set f400=5 when auto-tuning is executed after setting motor constants automatically.
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Title Function
0: Auto-tuning disabled
1: Initialization of f402 (after execution : 0)
2: Auto-tuning executed
Auto-tuning
3: -
4: Motor constant auto calculation
5: 4+2 (after execution: 0)
(1) Conduct auto-tuning after the motor has been connected properly and operation completely
stopped.
If auto-tuning is conducted immediately after operation stops, the presence of a residual voltage
may result in abnormal tuning.
(2) Voltage is applied to the motor during tuning even though it barely rotates. During tuning,
"" is displayed on the operation panel.
(3) Tuning is performed when the motor starts for the first time after f400 is set to 2.
Tuning is usually completed within three seconds. If it is aborted, the motor will trip with the
display of etn1 and no constants will be set for that motor.
(4) High-speed motors, high-slip motors or other special motors cannot be auto-tuned. For these
motors, perform manual tuning using Selection 3 described below.
(5) Provide cranes and hoists with sufficient circuit protection such as mechanical braking. Insufficient
motor torque while tuning may cause machine stalling/falling.
(6) If auto-tuning is impossible or an "etn1" auto-tuning error is displayed, perform manual tuning
with selection 4.
Adjustment range
(after execution: 0)
(after execution: 0)
F-86
E6581611
Default setting
0