Offline Auto Tuning For A Frequency Search - Mitsubishi Electric FR-A820-00046 Instruction Manual

(A) Application parameters
5.14.15

Offline auto tuning for a frequency search

During V/F control or when driving the IPM motor MM-CF, the accuracy of the "frequency search",
which is used to detect the motor speed for the automatic restart after instantaneous power failure
and flying start, can be improved.
Pr.
162
A700
298
A711
560
A712
96
C110
90
C120
463
C210
458
C220
For the FR-A820-03160(55K) or lower and FR-A840-01800(55K)or lower.
For the FR-A820-03800(75K) or higher and FR-A840-02160(75K)or higher.
5 - 574
Name
Automatic restart after
instantaneous power failure
selection
Frequency search gain
Second frequency search gain
Auto tuning setting/status
Motor constant (R1)
Second motor auto tuning
setting/status
Second motor constant (R1)
V/F V/F V/F
Initial
Setting range
value
0
1
2
3
0
10
11
12
13
0 to 32767
9999
9999
0 to 32767
9999
9999
0
1, 101
0
11
0 to 50 Ω, 9999
9999
0 to 400 mΩ,
9999
0
1, 101
0
11
0 to 50 Ω, 9999
9999
0 to 400 mΩ,
9999
PM PM PM
Description
Frequency search only performed at the first
start
Reduced voltage start only at the first start
(no frequency search)
Encoder detection frequency search
Frequency search only performed at the first
start (reduced impact restart)
Frequency search at every start
Reduced voltage start at every start (no
frequency search)
Encoder detection frequency search at every
start
Frequency search at every start (reduced
impact restart)
The offline auto tuning automatically sets the
gain required for the frequency search.
Uses the constant value of Mitsubishi motor
(SF-PR, SF-JR, SF-HR, SF-JRCA, SF-HRCA, MM-CF
and so on).
The offline auto tuning automatically sets the
gain required for the frequency search of the
second motor.
Uses the constant value of Mitsubishi motor
(SF-PR, SF-JR, SF-HR, SF-JRCA, SF-HRCA, MM-CF
and so on).
No offline auto tuning.
Perform offline auto tuning for the Advanced
magnetic flux vector control, Real sensorless
vector control, and vector control. (Refer to
page 5-67.)
Performs offline auto tuning without rotating
the motor (V/F control, PM sensorless vector
control (IPM motor MM-CF)).
Tuning data
(The value measured by offline auto tuning is
automatically set.)
9999: Uses the constant value of Mitsubishi
motor (SF-PR, SF-JR, SF-HR, SF-JRCA, SF-HRCA,
MM-CF and so on).
No auto tuning for the second motor.
Performs offline auto tuning for the second
motor.
Performs offline auto tuning without rotating
the second motor (V/F control, PM sensorless
vector control (IPM motor MM-CF)).
Tuning data of the second motor
(same as Pr. 90)
Parameters