Applied Motor (Pr. 71, Pr. 450) - Mitsubishi Electric FR-D720-008 Instruction Manual

4.8.2

Applied motor (Pr. 71, Pr. 450)

Setting of the used motor selects the thermal characteristic appropriate for the motor.
Setting is required to use a constant-torque motor. Thermal characteristic of the electronic thermal relay function
suitable for the motor is set.
When General-purpose magnetic flux vector is selected, the motor constants (SF-JR, SF-HR, SF-JRCA, SF-HRCA,
etc.) necessary for control are selected as well.
Parameter
Name
Number
71 Applied motor
450 Second applied motor
The above parameters can be set when Pr. 160 Extended function display selection = "0". (Refer to page 160)
(1) Set the motor to be used
Refer to the following list and set the parameter according to the motor used.
Pr. 71 (Pr. 450)
Setting
Thermal Characteristic of the Electronic Thermal Relay Function
Pr. 71 Pr. 450
0
Thermal characteristics of a standard motor
(Pr. 71 initial value)
1 Thermal characteristics of the Mitsubishi constant-torque motor
40 — Thermal characteristic of Mitsubishi high efficiency motor (SF-HR)
50 — Thermal characteristic of Mitsubishi constant torque motor (SF-HRCA)
3 — Standard motor
13 — Constant-torque motor
Mitsubishi standard motor
23 —
(SF-JR 4P 1.5kW or less)
43 — Mitsubishi high efficiency motor (SF-HR)
53 — Mitsubishi constant-torque motor (SF-HRCA)
9999
— (initial Without second applied motor
value)
∗1
Motor constants of Mitsubishi high efficiency motor SF-HR.
∗2
Motor constants of Mitsubishi constant-torque motor SF-HRCA.
REMARKS
When performing offline auto tuning, set any of "3, 13, 23, 43, 53" in Pr. 71.
(Refer to page 103 for offline auto tuning.)
For the FR-D720-238 and 318, FR-D740-120 and 160, the Pr. 0 Torque boost and Pr. 12 DC injection brake operation voltage
settings are automatically changed according to the Pr. 71 setting as follows.
Automatic Change
Parameter
Pr. 0
Pr. 12
∗1
Pr. 71 setting: 0, 3, 23, 40, 43
∗2
Pr. 71 setting: 1, 13, 50, 53
Initial
Setting Range
Value
0, 1, 3, 13,
0
23, 40, 43, 50, 53
9999
Select "Offline auto tuning
Standard Motor Constant-torque Motor
Setting ∗1 Setting ∗2
3%
4%
Selection and protection of a motor
Selecting the standard motor or constant-torque
motor sets the corresponding motor thermal
characteristic.
0, 1 Set when using the second motor.
Second motor is invalid.
9999 (thermal characteristic of the first motor
(Pr. 71))
Standard
(SF-JR, etc.)
setting"
2%
2%
Description
Motor ( : Used motor)
Constant torque
(SF-JRCA, etc.)
∗1
∗2
∗1
∗2
101
4