Filter
Top Products
8/24 BCN-C22005-634
*1 Initial values differ according to the inverter capacity. (55K or lower/75K or higher)
*2 The initial value differs according to the voltage level. (200V/400V)
(1) Before performing offline auto tuning
Check the following before performing offline auto tuning.
· The PM sensorless vector control should be selected.
· A motor should be connected. Note that the motor should be at a stop at a tuning start.
·
The motor capacity should be equal to or one rank lower than the inverter capacity.
· The maximum frequency under PM sensorless vector control should be 300Hz.
· Even if tuning is performed without motor running (Pr. 96 Auto tuning setting/status = "11"), the motor may
run slightly. Therefore, fix the motor securely with a mechanical brake, or before tuning, make sure that
there will be no problem in safety if the motor runs. (Caution is required especially in vertical lift
applications). Note that if the motor runs slightly, tuning performance is unaffected.
· Tuning is not available during position control under PM sensorless vector control.
684
Tuning data unit
switchover
0
0 Internal data converted value
1 Displayed in "A, , mH, %"
706
Induced voltage
constant
9999
0
to 5000mV • s/rad
Adjust the constant if the current fluctuates
during operation after tuning.
9999
Constant value calculated based on the
tuning data
707 Motor inertia (integer)
9999
10 to 999 Set the motor inertia.
9999 Uses the inertia of the MM-CF IPM motor
711
Motor d-shaft
inductance Ld decay
ratio
9999 0 to 100%, 9999
Tuning data
(The value measured by offline auto tuning
is automatically set.)
9999: Motor constant of the MM-CF IPM
motor. (Except 9999, the set value is the
motor constant.)
712
Motor q-shaft
inductance Lq decay
ratio
9999 0 to 100%, 9999
721
Starting magnetic
pole position
detection pulse width
9999 0 to 6000µs, 9999
724
Motor inertia
(exponent)
9999
1 to 7 Set the motor inertia.
9999 Uses the inertia of the MM-CF IPM motor
725
Motor protection
current level
9999
0 to 500%
Set the maximum current (OCT) level of the
motor (%).
9999 Uses the maximum current of MM-CF
859 Torque current
9999
55K or lower 0 to 500A
Tuning data
(The value measured by offline auto tuning
is automatically set.)
75K or higher 0 to 3600A
9999 Uses the constant of the MM-CF IPM motor
POINT
· The settings are valid only under the PM sensorless vector control.
· When the wiring length between the inverter and the motor is long (30m or longer as a reference), use the
offline auto tuning function to drive the motor in the optimum operation characteristic.
· The offline auto tuning enables the operation with an IPM motor other than MM-CF.
· Tuning is enabled even when a load is connected to the motor. (As the load is lighter, tuning accuracy is higher.
Tuning accuracy does not change even if the inertia is large.)
· Reading/writing of motor constants tuned by offline auto tuning are enabled. You can copy the offline auto
tuning data (motor constants) to another inverter with the PU (FR-DU07/FR-PU07).
· The offline auto tuning status can be monitored with the PU (FR-DU07/FR-PU07/FR-PU04).
· Do not connect a surge voltage suppression filter (FR-ASF-H/FR-BMF-H) to the 55K or lower and sine wave
filter (MT-BSL/BSC) to the 75K or higher between the inverter and motor.
Parameter
Number
Name
Initial
Value
Setting Range Description
bcnc22005634.fm 8 ページ ２０１２年７月３日 火曜日 午前９時４３分