Applied Motor (Pr. 71) - Mitsubishi Electric FR-F740 EC Instruction Manual

Parameter
6.7.2

Applied motor (Pr. 71)

Setting of the used motor selects the thermal characteristic appropriate for the motor.
Setting is necessary when using a constant-torque motor. Thermal characteristic of the elec-
tronic thermal relay function suitable for the motor is set.
Pr.
Name
No.
71
Applied motor
The above parameter can be set when Pr. 160 = 0.
Tab. 6-11:
NOTE
For the 00126 and 00170, 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.
Tab. 6-12:
CAUTION:
E
Set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.
FR-F700 EC
Initial Value Setting Range Description
0 0 / 1 / 2 / 20
Pr. 71 Setting Thermal Characteristic of the Electronic Thermal Relay Function
0 Thermal characteristics of a standard motor
1 Thermal characteristics of the Mitsubishi constant-torque motor
2 Thermal characteristics of a standard motor with adjustable 5 points V/Ff
20 Mitsubishi standard motor SF-JR 4P (1.5kW or less)
Setting of parameter 71
Pr. 71
Pr. 0
Pr. 12
Changes of parameter 0 and 12 related to parameter 71
Selection and protection of a motor
Selecting the standard motor or
constant-torque motor sets the
corresponding motor thermal
characteristic.
0, 2, 20
3%
4%
Parameters referred to
0 Torque boost
12 DC injection brake
operation voltage
100–109 Adjustable
5 points V/f
1
2%
2%
Refer to
Section
6.2.1
6.8.1
6.4.3
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