Instruction manual

104
PARAMETERS
4.2.26 Applied motor (Pr. 71)
Pr. 71 "applied motor"
Set the motor used.
• When using the constant-torque motor,
set "1" in Pr. 71 for either V/F control or
general-purpose magnetic flux vector
control.
The electronic thermal relay function is
set to the thermal characteristic of the constant-torque motor.
• When you selected the constant-torque motor, the values of the following parameters
are automatically changed. (only for the factory setting value)
Pr. 0 "torque boost", Pr. 12 "DC injection brake voltage"
<Setting>
• Refer to the following list and set this parameter according to the motor used.
By setting any of "100 to 123", thermal characteristic of electronic thermal relay function
(applied motor) can be changed as indicated below according to the ON/OFF status of
the RT signal:
Parameter
Number
Factory
Setting
Setting Range
71 0
0, 1, 3, 5, 6, 13, 15, 16, 23, 100, 101, 103,
105, 106, 113, 115, 116, 123
Pr. 71
Setting
Thermal Characteristics of Electronic
Thermal Relay Function
Applied motor
Standard
Constant-
Torque
0, 100 Thermal characteristics of a standard motor 
1, 101 Thermal characteristics of a constant-torque motor 
3, 103 Standard motor
Select "offline auto tuning
setting".

13, 113 Constant-torque motor 
23, 123 Do not set. 
5, 105 Standard motor
Star
connection
Motor
constants can
be entered
directly.

15, 115 Constant-torque motor 
6, 106 Standard motor
Delta
connection

16, 116 Constant-torque motor 
RT Signal
Thermal Characteristic of Electronic Thermal Relay Function (Applied Motor)
OFF As indicated in the above table
ON Constant-torque motor
CAUTION
Set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.
Set the electronic thermal relay function to the thermal characteristic for the
constant-torque motor when using a geared motor (GM-G, GM-D, GM-SY,
GM-HY2 series) to perform general-purpose magnetic-flux vector control.
Pr. 0 "torque boost"
Pr. 12 "DC injection brake voltage"
Pr. 19 "base frequency voltage"
Pr. 80 "motor capacity"
Pr. 96 "auto-tuning setting/status"
Related parameters
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