Mitsubishi FR-E 500 Instruction Manual page 135

<Setting the motor constant as desired>
" To set the motor constant without using the offline auto tuning data
<Operating procedure>
1. Set any of the following values in Pr. 71:
Standard motor
Setting
Constant-torque motor
By setting any of "105 to 116", the electronic overcurrent protection changes to the
thermal characteristics of the constant-torque motor when the RT signal switches on.
2. Set "801" in Pr. 77.
(Only when the Pr. 80 setting is other than "9999", the parameter values of the
motor exciting current (Pr. 82) and motor constant (Pr. 90) can be displayed.
Though the parameter values other than Pr. 82 and Pr. 90 can also be displayed,
they are parameters for manufacturer setting and should be handled carefully
without misuse.)
3. In the parameter setting mode, read the following parameters and set desired
values:
Parameter
Name
Number
Motor exciting
82
current
Motor constant
90
4. Return the Pr. 77 setting to the original value.
5. Refer to the following table and set Pr. 84:
Parameter
Name
Number
Rated motor
84
frequency
Note: 1. The Pr. 90 value may only be read when general-purpose magnetic flux
vector control has been selected.
2. Set "9999" in Pr. 90 to use the standard motor constant (including that for
the constant-torque motor).
3. If "star connection" is mistaken for "delta connection" or vice versa during
setting of Pr. 71, general-purpose magnetic flux vector control cannot be
exercised normally.
Star Connection Motor
Setting Range
0 to 500A,
9999
0 to 10Ω, 9999
(R1)
Setting Range
50 to 120Hz
5 or 105
15 or 115
Setting
Increments
0.01A
0.001Ω
Setting
Increments
0.01Hz
120
PARAMETERS
Delta Connection Motor
6 or 106
16 or 116
Factory
Setting
9999
9999
Factory
Setting
60Hz
4