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Applied Motor (pr. 71) - Mitsubishi Electric FR-E520 Instruction Manual

Transistorized inverter.
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4.2.26 Applied motor (Pr. 71)

Pr. 71 "applied motor"
Set the motor used.
• When using the Mitsubishi 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 Mitsubishi 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"
Parameter
Number
71
<Setting>
• Refer to the following list and set this parameter according to the motor used.
Pr. 71
Thermal Characteristics of Electronic
Setting
0, 100
Thermal characteristics matching a standard motor
Thermal characteristics matching the Mitsubishi
1, 101
constant-torque motor
3, 103
Standard motor
13, 113
Constant-torque motor
Mitsubishi general-
23, 123
purpose motor SF-JR4P
(1.5kW or less)
5, 105
Standard motor
15, 115
Constant-torque motor
6, 106
Standard motor
16, 116
Constant-torque motor
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:
RT Signal
T h erm al Ch arac teristic o f Ele ctron ic Th erm a l R ela y Fu n ctio n (A p plie d M o tor)
OFF
As indicated in the above table
ON
Constant-torque motor
Set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.
Factory
Setting
0
Thermal Relay Function
Select "offline auto tuning
setting".
Star
connection
Delta
connection
CAUTION
117
PARAMETERS
Related parameters
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"
Setting Range
0, 1, 3, 5, 6, 13, 15, 16, 23, 100, 101, 103,
105, 106, 113, 115, 116, 123
Standard
Motor
constants can
be entered
directly.
Applied motor
Constant-
Torque
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