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

Selection and protection of a motor
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-PR, 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 Extended function display selection = "0". (Refer to page 165.)
(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
Pr. 71 Pr. 450
0
(Pr. 71 initial Standard motor (such as SF-JR)
value)
1 Mitsubishi Electric constant-torque motor (such as SF-JRCA)
40 — Mitsubishi Electric high-efficiency motor (SF-HR)
50 — Mitsubishi Electric constant-torque motor (SF-HRCA)
Mitsubishi Electric high-performance
1
energy-saving motor (SF-PR)
3 — Standard motor
13 — Constant-torque motor
Mitsubishi Electric standard motor
23 —
(SF-JR 4P 1.5kW or lower)
Mitsubishi Electric high efficiency motor
43 —
(SF-HR)
Mitsubishi Electric constant-torque motor
53 —
(SF-HRCA)
9999
— (initial Without second applied motor
value)
REMARKS
 When performing offline auto tuning, set any of "3, 13, 23, 43, 53" in Pr. 71.
(Refer to page 108 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

Pr. 71 setting: 0, 3, 23, 40, 43

Pr. 71 setting: 1, 13, 50, 53
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 General-purpose magnetic flux vector control.
106
Initial
Name
Value
0
9999
Used motor
Standard Motor
Setting
3%
4%
Setting Range
Selecting the standard motor or constant-torque
0, 1, 3, 13,
motor sets the corresponding motor thermal
23, 40, 43, 50, 53
characteristic.
0, 1 Set when using the second motor.
Second motor is invalid.
9999 (thermal characteristic of the first motor
(Pr. 71))
Thermal Characteristic of the Electronic
Select "Offline auto
tuning setting"
Constant-torque Motor
Setting
2%
2%
Description
Thermal Relay Function
Standard Constant-torque
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