Toshiba TOSVERT VF-S11 Instruction Manual page 154

6
[Selection 3: Setting vector control and manual tuning independently]
If an "
improved, independent motor constants can be set.
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 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 "
with Selection 3.
(7) If the inverter is tripped during auto-tuning because of an output phase failure (
the inverter is connected to the correctly. A check for output phase failures is made during auto-
tuning, regardless of the setting of the output phase failure detection mode selection parameter
( ).
" tuning error is displayed during auto-tuning or when vector control characteristics are to be
Title Function
Auto-tuning
Slip frequency gain
Motor constant #1 (primary
resistance)
Motor rated current
Motor no-load current
Motor rated rotational speed
Speed control response
coefficient
Speed control stability
coefficient
Exciting strengthening coeffi-
cient
Stall cooperation gain at field
weakening zone 1
Stall cooperation gain at field
weakening zone 2
" auto-tuning error is displayed, perform manual tuning
Adjustment range
0: Auto-tuning disabled
(use of internal parameters)
1: Application of individual settings of
(after execution: 0)
2: Auto-tuning enabled (after execution: 0)
0-150 (%
0.0-30.0 (%)
0.1-100.0 (A)
10-90 (%)
-1
100-32000 (min )
1-150
1-100
100-130
10-250
50-150
F-52
E6581158
), check if
Default setting
0
50
Depends on
the capacity
(See Section
11, K-14)
1410 (WP)
1710 (WN, AN)
40
20
100
100
100