Toshiba TOSVERT VF-nC3 User Manual

E6581595
F-38
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  (V/F control mode selection), auto-tuning occurs.
Set the auto-tuning parameter  to  (Auto-tuning enabled)
[Parameter setting]
Title Function Adjustment range Default setting

Auto-tuning
0: Auto-tuning disabled
1: Initialization of  (reset to 0)
2: Auto-tuning executed (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 dis-
play of  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 "" auto-tuning error is displayed, perform manual tuning
with Selection 3.
[Selection 3: Setting vector control and manual tuning independently]
If an "" tuning error is displayed during auto-tuning or when vector control characteristics are to be
improved, set independent motor constants.
[Parameter setting]
Title Function Adjustment range Default setting

Slip frequency gain
0-250 (%）
50

Automatic torque boost value 0.1-30.0 (%)
Depends on
the capacity
(Refer to
section 11.4)

Motor rated capacity 0.01-5.50 (kW)

Motor rated current 0.1-30.0 (A)

Motor no-load current 10-90 (%)

Motor rated speed 100-32000 (min
-1
) *1

Load inertia moment ratio 0.1-100.0 (times) 1.0

Motor electronic thermal
protection level 1
10-100 (%) / (A) 100
*1: Default setting values vary depending on the setup menu setting. Refer to section 11.5.

Toshiba TOSVERT VF-nC3 Specifications

General

Brand	Toshiba
Model	TOSVERT VF-nC3
Category	Inverter
Language	English