Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 127 / 608

Basic settings Simple mode parameter list
FR-E700 SC EC/ENE 5 - 15
5.1.8 To exhibit the best performance of the motor performance
(offline auto tuning) (Pr. 9, Pr. 71, Pr. 83, Pr. 84, Pr. 96)
The motor performance can be maximized with offline auto tuning.
What is offline auto tuning?
When performing advanced magnetic flux vector control or general-purpose magnetic flux vector
control, the motor can be run with the optimum operating characteristics by automatically measur-
ing the motor constants (offline auto tuning) even when each motor constants differs, other manu-
facturer's motor is used, or the wiring length is long.
햲
Refer to appendix A for the rated inverter output current.
햳
The initial value differs according to the voltage class: 200 V/400 V
Pr. No. Name Initial Value Setting Range Description
9
Electronic thermal
O/L relay
Rated inverter
current
햲
0–500 A Set the rated motor current.
71
Applied motor 0
0/1/3–6/ 13–16/ 23/24/40/43/
44/50/53/54
By selecting a standard motor or constant-torque motor, thermal
characteristic and motor constants of each motor are set.
83
Motor rated voltage
200 V/400 V
햳
0–1000 V Set the rated motor voltage (V).
84
Rated motor frequency 50 Hz 10–120 Hz Set the rated motor frequency (Hz).
96
Auto tuning setting/status 0
0 Offline auto tuning is not performed
1
Offline auto tuning is performed without motor running
(all motor constants)
11
For general-purpose magnetic flux vector control
Offline auto tuning is performed without motor running (motor constant
(R1) only)
21
Offline auto tuning for V/F control
(automatic restart after instantaneous power failure (with frequency
search)) (refer to section 6.12.1)
NOTES This function is made valid only when a value other than "9999" is set in Pr. 80 and Pr. 81 and
advanced magnetic flux vector control or general-purpose magnetic flux vector control is
selected.)
You can copy the offline auto tuning data (motor constants) to another inverter with the PU
(FR-PU07).
Even when motors (other manufacturer's motor, SF-JRC, etc.) other than Mitsubishi standard
motor, high efficiency motor (SF-JR, SF-HR 0.2kW or more), and Mitsubishi constant-torque motor
(SF-JRCA four-pole, SF-HRCA 0.2 kW to 15 kW) are used or the wiring length is long, using the
offline auto tuning function runs the motor with the optimum operating characteristics.
Tuning is enabled even when a load is connected to the motor. As the motor may run slightly, fix
the motor securely with a mechanical brake or make sure that there will be no problem in safety if
the motor runs (caution is required especially in elevator). Note that tuning performance is unaf-
fected even if the motor runs slightly.
Reading/writing/copy of motor constants tuned by offline auto tuning are enabled.
The offline auto tuning status can be monitored with the operation panel and PU (FR-PU04/
FR-PU07).