134
Operation selection at power failure and instantaneous power failure
(5) Frequency search gain
(Pr. 298)
, offline auto tuning
(Pr. 96)
When automatic restart after instantaneous power failure operation (with frequency search) is valid at V/F control, perform
offline auto tuning.
Perform offline auto tuning during V/F control in the following order to set
Pr. 298
Frequency search gain
automatically.
(Refer to
page
during general-purpose magnetic flux vector control.)
Before performing offline auto tuning
Check the following before performing offline auto tuning.
The inverter is under V/F control
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. (note that the capacity is 0.1kW or
more)
The maximum frequency is 120Hz.
A high-slip motor, high-speed motor and special motor cannot be tuned.
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
tuning performance is unaffected even if the motor runs slightly.
Offline auto tuning will not be performed properly if it is performed with a surge voltage suppression filter (FR-ASFH, FR-
BMF-H) connected between the inverter and motor. Remove it before starting tuning.
Setting
1) Set "21" in
Pr. 96
Auto tuning setting/status
.
Tuning is performed without motor running.
2) Set the rated motor current (initial value is rated inverter current) in
Pr. 9 Electronic thermal O/L relay
.
3) Set
Pr. 71 Applied motor
according to the motor used.
∗1
Refer to
page
, for other settings of
Pr. 71
.
Motor
Pr.71
Setting
Mitsubishi standard motor
Mitsubishi high efficiency motor
SF-JR
3
SF-JR 4P 1.5kW or less
23
SF-HR
43
Others
3
Mitsubishi constant-torque
motor
SF-JRCA 4P
13
SF-HRCA
53
Others (SF-JRC, etc.)
13
Other manufacturer's standard
motor
—
3
Other manufacturer's constant
torque motor
—
13
Содержание FR-D700 Series
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