Mitsubishi FR-A800

(A) Application parameters
536
PARAMETERS
Parameters referred to
Pr.13 Starting frequency page 298, page 299
Pr.65, Pr.67 to Pr.69 retry function page 343
Pr.78 Reverse rotation prevention selection page 323
Pr.178 to Pr.189 (input terminal function selection) page 430
Pr.882 Regeneration avoidance operation selection page 621
5.14.15 Offline auto tuning for a frequency search
 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.
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. 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 442.)
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 , 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 m, 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 , 9999

Tuning data of the second motor
(same as Pr.90)
0 to 400 m, 9999

V/F
V/F
V/F
PM
PM
PM