Mitsubishi Electric FR-A800, Instruction Manual

Page: 754 / 1042

(A) Application parameters Parameters
5 - 574
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.
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.
Pr. Name
Initial
value
Setting range Description
162
A700
Automatic restart after
instantaneous power failure
selection
0
0
Frequency search only performed at the first
start
1
Reduced voltage start only at the first start
(no frequency search)
2 Encoder detection frequency search
3
Frequency search only performed at the first
start (reduced impact restart)
10 Frequency search at every start
11
Reduced voltage start at every start (no
frequency search)
12
Encoder detection frequency search at every
start
13
Frequency search at every start (reduced
impact restart)
298
A711
Frequency search gain 9999
0 to 32767
The offline auto tuning automatically sets the
gain required for the frequency search.
9999
Uses the constant value of Mitsubishi motor
(SF-PR, SF-JR, SF-HR, SF-JRCA, SF-HRCA, MM-CF
and so on).
560
A712
Second frequency search gain 9999
0 to 32767
The offline auto tuning automatically sets the
gain required for the frequency search of the
second motor.
9999
Uses the constant value of Mitsubishi motor
(SF-PR, SF-JR, SF-HR, SF-JRCA, SF-HRCA, MM-CF
and so on).
96
C110
Auto tuning setting/status 0
0 No offline auto tuning.
1, 101
Perform offline auto tuning for the Advanced
magnetic flux vector control, Real sensorless
vector control, and vector control. (Refer to
page 5-67.)
11
Performs offline auto tuning without rotating
the motor (V/F control, PM sensorless vector
control (IPM motor MM-CF)).
90
C120
Motor constant (R1) 9999
0 to 50 Ω, 9999
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).
0 to 400 mΩ,
9999
463
C210
Second motor auto tuning
setting/status
0
0 No auto tuning for the second motor.
1, 101
Performs offline auto tuning for the second
motor.
11
Performs offline auto tuning without rotating
the second motor (V/F control, PM sensorless
vector control (IPM motor MM-CF)).
458
C220
Second motor constant (R1) 9999
0 to 50 Ω, 9999
Tuning data of the second motor
(same as Pr. 90)
0 to 400 mΩ,
9999
V/F V/F V/F PM PM PM