Mitsubishi Electric 800 Series Instruction Manual page 455

5.11.13 Offline auto tuning for a frequency search
V/F V/F V/F
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.
162 Automatic restart after
A700 instantaneous power failure
selection
298 Frequency search gain
A711
560 Second frequency search gain
A712
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
*1 For the FR-F860-00680 or lower.
*2 For the FR-F860-01080 or higher.
*3 The same operation is performed for the both settings.
454
5. PARAMETERS
5.11 (A) Application parameters
Name Initial
value
0
9999
9999
0
9999
0
9999
Setting range
Frequency search only performed at the first start
*3
0 (2) ,
*3
1000 (1002)
1, 1001 Reduced voltage start only at the first start
(no frequency search)
3, 1003 Frequency search only performed at the first start
(reduced impact restart)
Frequency search at every start
*3
10 (12) ,
*3
1010 (1012)
11, 1011 Reduced voltage start at every start (no frequency
search)
13, 1013 Frequency search at every start (reduced impact
restart)
0 to 32767 The offline auto tuning automatically sets the gain
required for the frequency search.
9999 Uses the constant value of standard motor.
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 standard motor.
0 No offline auto tuning.
1, 101 Perform offline auto tuning for the Advanced magnetic
flux vector control. (Refer to
11 Performs offline auto tuning without rotating the motor
(V/F control).
Tuning data
*1
0 to 50 Ω, 9999
(The value measured by offline auto tuning is
*2
0 to 400 mΩ, 9999
automatically set.)
9999: Uses the constant value of standard motor.
0 No auto tuning for the second motor.
1, 101 Performs offline auto tuning for the second motor.
(Refer to
11 Performs offline auto tuning without rotating the
second motor (V/F control).
Tuning data of the second motor
*1
0 to 50 Ω, 9999
(same as Pr.90)
*2
0 to 400 mΩ, 9999
Description
page 353.)
page 353.)