Offline Auto Tuning For A Frequency Search - Mitsubishi Electric 800 Series Instruction Manual

(A) Application parameters
5.14.15

Offline auto tuning for a frequency search

During V/F control, 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. Name
Automatic restart after
162
instantaneous power failure
A700
selection
298
Frequency search gain
A711
560 Second frequency search
A712 gain
96
Auto tuning setting/status
C110
90
Motor constant (R1)
C120
463 Second motor auto tuning
C210 setting/status
458
Second motor constant (R1)
C220

For the FR-A860-01080 or lower.

For the FR-A860-01440 or higher.
522
PARAMETERS
Initial
Setting range
value
0, 1000
1, 1001
2, 1002
3, 1003
0
10, 1010
11, 1011
12, 1012
13, 1013
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
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 standard motor.
The offline auto tuning automatically sets the gain
required for the frequency search of the second
motor.
Uses the constant value of standard motor.
No offline auto tuning.
Perform offline auto tuning for the Advanced
magnetic flux vector control, Real sensorless vector
control, and vector control. (Refer to
Performs offline auto tuning without rotating the motor
(V/F control).
Tuning data
(The value measured by offline auto tuning is
automatically set.)

9999: Uses the constant value of standard motor.
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).
Tuning data of the second motor
(same as Pr.90)

V/F V/F V/F
page 426.)