Mitsubishi Electric FR-A700 Instruction Manual page 362

Set V/f pattern
b
CAUTION:
Set this parameter correctly according to the motor used. Incorrect setting may cause
the motor to overheat and burn.
Setting procedure:
Set the rated motor current in Pr. 19 "Base frequency voltage". (No function at the setting
of "9999" (initial value) or "8888".)
Set Pr. 71 "Applied motor" to "2" (Adjustable 5 points V/f characteristic).
Set the frequency and voltage you want to set in Pr. 100 to Pr. 109
NOTES Adjustable 5 points V/f characteristics function only under V/f control. They do not function
under advanced magnetic flux vector control, real sensorless vector control or vector
control.
When Pr. 19 "Base frequency voltage" = 8888 or 9999, Pr. 71 cannot be set to "2". To set
Pr. 71 to "2", set the rated voltage value in Pr. 19.
When the frequency values at each point are the same, a write disable error "Er1" appears.
Set the points (frequencies, voltages) of Pr. 100 to Pr. 109 within the ranges of Pr. 3 "Base
frequency" and Pr. 19 "Base frequency voltage".
When "2" is set in Pr. 71, Pr. 47 "Second V/f (base frequency)" and Pr. 113 "Third V/f (base
frequency)" will not function.
When Pr. 71 is set to "2", the electronic thermal relay function makes calculation as a stand-
ard motor.
A greater energy saving effect can be expected by combining Pr. 60 "Energy saving control
selection" and adjustable 5 points V/f.
For the 00170 and 00250, the Pr. 0 and Pr. 12 settings are automatically changed according
to the Pr. 71 setting:
Parameter 71 = 0, 2, 3–8, 20, 23, 24, 40, 43, 44
The setting of Parameter 0 changes to 3% and the setting of Parameter 12 to 4%.
Parameter 71 = 1, 13–18, 50, 53, 54
The settings of Parameter 0 and 12 change to 2%.
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Parameter