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Selection and protection of a motor
5.11.2 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 or Advanced magnetic flux vector control is selected, the motor constants
(SF-JR, SF-HR, SF-JRCA, SF-HRCA, etc.) necessary for control are selected as well.
Parameter
Number
71
Applied motor
450
Second applied motor
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 197)
(1)
Set the motor to be used
Refer to the following list and set this 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)
4
—
Standard motor
14
—
Constant-torque motor
Mitsubishi standard motor
24
—
(SF-JR 4P 1.5kW or less)
44
—
Mitsubishi high efficiency motor (SF-HR)
54
—
Mitsubishi constant-torque motor (SF-HRCA)
5
—
Standard motor
15
—
Constant-torque motor
6
—
Standard motor
16
—
Constant-torque motor
9999
—
Without second applied motor
(initial 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 146 for offline auto tuning.)
For the 5.5K and 7.5K, 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 to 6, 23, 24,40, 43, 44
∗2
Pr. 71 setting: 1, 13 to 16, 50, 53, 54
NOTE
Set the electronic thermal relay function to the thermal characteristic for the constant-torque motor when using a
geared motor (GM-S, GM-D, GM-SY, GM-HY2 series) to perform Advanced magnetic flux vector control or General-
purpose magnetic-flux vector control.
144
Initial
Name
Value
0
9999
Standard Motor Setting
Setting Range
0, 1, 3 to 6, 13 to 16,
Selecting the standard motor or constant-torque
23, 24, 40, 43, 44,
motor sets the corresponding motor thermal
50, 53, 54
characteristic.
0, 1
Set when using the second motor.
Second motor is invalid
9999
(thermal characteristic of the first motor (Pr. 71))
Select
"Offline auto tuning setting"
Auto tuning data can be read,
changed, and set.
Star
Direct input of
connection
motor constants
Delta
is enabled
connection
Constant-torque Motor Setting
∗1
3%
4%
Description
Motor ( : Used motor)
Standard
Constant-torque
(SF-JR, etc.)
(SF-JRCA, etc.)
∗1
∗2
∗1
∗2
∗1
∗2
∗2
2%
2%
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