CAUTION
• An IPM motor is a motor with interior permanent magnets. High voltage is generated at motor terminals while the motor
is running.
Do not touch motor terminals and other parts until the motor stops to prevent an electric shock.
• When the automatic restart after instantaneous power failure function is selected, the motor suddenly starts (after reset
time passes) when an instantaneous power failure occurs.
Stay away from the motor and machinery.
Apply the supplied CAUTION stickers to easily visible places when automatic restart after instantaneous power failure
has been selected.
Parameters referred to
Pr.13 Starting
frequencypage
Pr.65, Pr.67 to Pr.69 Retry
Pr.78 Reverse rotation prevention
Pr.178 to Pr.189 (Input terminal function
Pr.882 Regeneration avoidance operation
5.11.14 Offline auto tuning for a frequency search
V/F
V/F
V/F
PM
PM
PM
Under V/F control or when driving the IPM motor MM-EFS or MM-THE4, 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
A700
failure selection
298
Frequency search gain 9999
A711
560
Second frequency
A712
search gain
96
Auto tuning setting/
C110
status
90
Motor constant (R1)
C120
463
Second motor auto
C210
tuning setting/status
458
Second motor
C220
constant (R1)
*1
For the FR-F820-02330(55K) or lower and FR-F840-01160(55K) or lower.
*2
For the FR-F820-03160(75K) or higher and FR-F840-01800(75K) or higher.
454
5. PARAMETERS
5.11 (A) Application parameters
225,
page 226
functionpage 261
selectionpage 245
selection)page 355
selectionpage 545
Initial
Setting range
value
0 (2)
1
3
0
10 (12)
11
13
0 to 32767
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
Frequency search only performed at the first start
Reduced voltage start only at the first start
(no 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)
Frequency search at every start (reduced impact restart)
The offline auto tuning automatically sets the gain required for the
frequency search.
The constant value of Mitsubishi Electric motor (SF-PR, SF-JR, SF-
HR, SF-JRCA, SF-HRCA, MM-EFS, or MM-THE4) is used.
The offline auto tuning automatically sets the gain required for the
frequency search of the second motor.
The constant value of Mitsubishi Electric motor (SF-PR, SF-JR, SF-
HR, SF-JRCA, SF-HRCA, MM-EFS, or MM-THE4) is used for the
second motor.
No offline auto tuning
Offline auto tuning is performed under Advanced magnetic flux vector
control. (Refer to
page
Offline auto tuning is performed without rotating the motor (V/F
control, PM motor control (IPM motor MM-EFS/MM-THE4)).
Tuning data
*1
(The value measured by offline auto tuning is automatically set.)
9999: The constant value of Mitsubishi Electric motor (SF-PR, SF-JR,
*2
SF-HR, SF-JRCA, SF-HRCA and so on) is used.
No auto tuning for the second motor.
Offline auto tuning is performed for the second motor. (Refer to
366.)
Offline auto tuning is performed without rotating the second motor (V/
F control, PM motor control (IPM motor MM-EFS/MM-THE4)).
*1
Tuning data of the second motor
(same as Pr.90)
*2
Description
366.)
page