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Selection and protection of a motor
4.9.2 Applied motor (Pr. 71)
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 201)
* Performing IPM parameter initialization changes the settings. (Refer to page 80)
..............Specifications differ according to the date assembled. Refer to page 378 to check the SERIAL number.
Refer to the following list and set this parameter according to the motor used.
* The setting automatically changes to "120 or 210" when IPM parameter initialization is performed. (Refer to page 80)
Setting of the used motor selects the thermal characteristic appropriate for the motor.
Setting is necessary when using a constant-torque motor or IPM motor. Thermal characteristic of the electronic
thermal relay function suitable for the motor is set.
Parameter
Number
Name Initial Value Setting Range Description
71
Applied motor 0*
0, 1, 2, 20,
120, 210
Selecting the standard motor or constant-
torque motor or IPM motor sets the
corresponding motor thermal characteristic.
Pr. 71
Setting
Thermal Characteristic of the Electronic Thermal Relay
Function
Motor ({ : used motor)
Standard
(SF-JR, etc.)
Constant-torque
(SF-HRCA, etc.)
IPM
(MM-EF)
IPM
(MM-EFS)
0
(initial value)
Thermal characteristics of a standard motor
1 Thermal characteristics of the Mitsubishi constant-torque motor
2
Thermal characteristics of a standard motor
Adjustable 5 points V/F(Refer to page 101)
20 Mitsubishi standard motor SF-JR 4P(1.5kW or lower)
120*
High-efficiency IPM motor (MM-EFS) (Refer to page 80)
210*
Premium high-efficiency IPM motor MM-EFS
(Refer to page 80)
REMARKS
⋅ 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.
⋅ With Pr. 71 = "210" setting, Pr. 80 Motor capacity can be set only in the range of 0.75K to 55K.
CAUTION
Make sure to set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.
♦ Parameters referred to ♦
Pr. 0 Torque boost Refer to page 87
Pr. 12 DC injection brake operation voltage Refer to page 123
Pr. 100 to Pr. 109 (Adjustable 5 points V/F) Refer to page 101
IPM motor control Refer to page 77
Pr. 71
Standard Motor Setting
0, 2, 20, 120, 210
Constant-torque Motor Setting
1
Pr. 0 3% 2%
Pr. 12 4% 2%