E6581697
F-65
6
[Selection 2: Setting vector control and auto-tuning independently]
Set vector control, automatic torque boost, and energy saving and auto-tuning individually.
After setting
pt (V/F control mode selection), auto-tuning occurs.
Set the auto-tuning parameter f400 to 2 (Auto-tuning enabled)
[Parameter setting]
Title Function Adjustment range Default setting
f400 Auto-tuning
0: Auto-tuning disabled
1: Initialization of
f402 (after execution : 0)
2: Auto-tuning executed
(after execution: 0)
3: -
4: Motor constant auto calculation
(after execution: 0)
5: 4+2 (after execution: 0)
0
Set
f400 to 2 to before the start of operation. Tuning is performed at the start of the motor.
, Precautions on auto-tuning
(1) Conduct auto-tuning only after the motor has been connected 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. Without
sufficient circuit protection, the resulting insufficient motor torque during tuning could create a risk
of machine stalling/falling.
(6) If auto-tuning is impossible or an "
etn1" auto-tuning error is displayed, perform manual tuning
with selection 4.
[Selection 3: Setting vector control and motor constant automatically]
After setting parameter vl, vlv, f405, f415 and f417, parameter f402 and f416 are
calculated automatically by calculating motor constants.
Set the motor constant parameter f400 to 4 (auto calculation)
Set f400=5, when auto-tuning is executed after setting motor constants automatically .
[Selection 4: Setting vector control and manual tuning independently]
If an "etn1" tuning error is displayed during auto-tuning or when vector control characteristics are to be
improved, set independent motor constants.
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