Offline Auto Tuning - Mitsubishi Electric FR-A700 Instruction Manual

Selection and protection of a motor
6.12.3

Offline auto tuning

(Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450, Pr. 453 to Pr. 463,
Pr. 684, Pr. 859, Pr. 860)
The motor performance can be maximized with offline auto tuning.
What is offline auto tuning?
● When performing advanced magnetic flux vector control, real sensorless vector control or
vector control, the motor can be run with the optimum operating characteristics by automa-
ticaly measuring the motor constants (offline auto tuning) even when each motor constants
differs, other manufacturer's motor is used, or the wiring length is long.
Pr.
Name
No.
71
Applied motor
80
Motor capacity
Number of motor
81
poles
Motor excitation
82
current
83
Motor rated voltage
Rated motor
84
frequency
6 - 222
Magnetic flux Magnetic flux Magnetic flux
Initial
Setting Range
Value
0 to 8/13 to 18/20/
0 23/24/30/33/34/40/
43/44/50/53/54
01800
0.4 to
or
55kW
less
9999 02160
0 to
or
3600kW
more
9999
2/4/6/8/10
12/14/16/18/20
9999
9999
01800
or 0 to 500A
less
02160
or 0 to 3600A
9999
more
9999
400V 0 to 1000V
50Hz 10 to 120Hz
Sensorless Sensorless Sensorless Vector Vector Vector
Description
By selecting a standard motor or
constant-torque motor, thermal
characteristic and motor con-
stants of each motor are set.
Applied motor capacity
V/f control
Number of motor poles
X18 signal ON: V/f control
Set 10 + number
of motor poles.
V/f control
Tuning data
(The value measured by offline
auto tuning is automatically set.)
Uses the Mitsubishi motor
(SF-JR, SF-HR, SF-JRCA,
SF-HRCA) constants.
Rated motor voltage (V)
Rated motor frequency (Hz)
Parameter
Parameters referred to
7 Acceleration time
8 Deceleration time
9 Electronic ther-
mal O/L relay
71 Applied motor
80 Motor capacity
81 Number of motor
poles
95 Online auto tuning
selection
156 Stall prevention
operation selec-
tion
178–189 Input terminal
function selection
190–196 Output terminal
function selection
800 Control method
selection
Refer to
Section
6.11.1
6.11.1
6.12.1
6.12.2
6.2.2
6.2.2
6.12.4
6.7.4
6.14.1
6.14.5
6.2.2