Mitsubishi Electric FR-A820-00046 Instruction Manual page 633

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Parameters
Tuning the second applied motor
● When one inverter switches the operation between two different motors, set the second motor
in Pr. 450 "Second applied motor". (Refer to page 5-434.) In the initial setting, no second motor is
applied.
● Turning ON the RT signal will enable the parameter settings for the second motor as shown below.
Function
Motor capacity
Number of motor poles
Motor excitation current
Rated motor voltage
Rated motor frequency
Motor constant (R1)
Motor constant (R2)
Motor constant (L1)/d-shaft inductance (Ld)
Motor constant (L2)/q-shaft inductance (Lq)
Motor constant (X)
Auto tuning setting/status
Frequency search gain
Tab. 5-185: Validation of parameters by the RT signal
NOTES
The RT signal is assigned to the terminal RT in the initial status. Set "3" in any of Pr. 178 to Pr. 189
(input terminal function selection) to assign the RT signal to another terminal.
Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may
affect the other functions. Set parameters after confirming the function of each terminal.
Parameters referred to
Pr. 1
Pr. 9
Pr. 31 to Pr. 36
Pr. 71
Pr. 156
Pr. 178 to Pr. 189
Pr. 190 to Pr. 196
Pr. 800
FR-A800
Maximum frequency
Electronic thermal O/L relay
Frequency jump
Applied motor
Stall prevention operation selection
(input terminal function selection)
(output terminal function selection)
Control method selection
(C) Motor constant parameters
RT signal ON (second motor)
Pr. 453
Pr. 454
Pr. 455
Pr. 456
Pr. 457
Pr. 458
Pr. 459
Pr. 460
Pr. 461
Pr. 462
Pr. 463
Pr. 560
RT signal OFF (first motor)
Pr. 80
Pr. 81
Pr. 82
Pr. 83
Pr. 84
Pr. 90
Pr. 91
Pr. 92
Pr. 93
Pr. 94
Pr. 96
Pr. 298
=>
page 5-310
=>
page 5-292
=>
page 5-312
=>
page 5-434
=>
page 5-84
=>
page 5-422
=>
page 5-361
=>
page 5-56
5 - 453

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