Mitsubishi Electric FR-A800, Instruction Manual

Page: 841 / 1042

Parameters (G) Control parameters
FR-A800 5 - 661
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Setting procedure
Set the rated motor voltage in Pr. 19 "Base frequency voltage".
(No function at the setting of "9999" or "8888".)
Set Pr. 71 "Applied motor" = "2" (adjustable 5 points V/F).
Set frequency and voltage to be set in Pr. 100 to Pr. 109.
E
CAUTION:
Make sure to set this parameter correctly according to the motor used. Incorrect setting may
cause the motor to overheat and burn.
NOTES Adjustable 5 points V/F will become enabled at the time of V/F control.
At the time of Pr. 19 Base frequency voltage = "8888, 9999", setting of Pr. 71 = "2" cannot be made.
When setting Pr. 71 = "2", set the rated motor voltage in Pr. 19.
Read only error ( ) is generated when the frequency value for each point is same.
Set each point for Pr. 100 to Pr. 109 (frequency, voltage) within the range of Pr. 3 "Base frequency"
and Pr. 19 "Base frequency voltage".
When Pr. 71 = "2", Pr. 47 Second V/F (base frequency) and Pr. 113 Third V/F (base frequency) will
not function.
When Pr. 71 = "2", electronic thermal O/L relay will make calculations assuming a standard motor.
By simultaneously using Pr. 60 "Energy saving control selection" and the adjustable 5 points V/F,
further energy saving effect is expected.
The Pr. 0 "Torque boost" and Pr. 12 "DC injection brake operation voltage" settings are automati-
cally changed according to the Pr. 71 setting. (Refer to page 5-438.)
Parameters referred to
Pr. 0 Torque boost => page 5-652
Pr. 3 Base frequency => page 5-654
Pr. 19 Base frequency voltage => page 5-654
Pr. 12 DC injection brake operation voltage => page 5-663
Pr. 47 Second V/F (base frequency) => page 5-660
Pr. 113 Third V/F (base frequency) => page 5-660
Pr. 60 Energy saving control selection => page 5-659
Pr. 71 Applied motor => page 5-434
Pr. 450 Second applied motor => page 5-434