Mitsubishi Electric FR-A700 Technical Manual page 241

Setting Range
[Pr. ] Name
(Upper line : 55K or less
Lower line : 75K or more)
Motor excitation
82
current (no load
current)
Motor constant
90
(r1)
0 to 400m
Motor constant
91
(r2)
0 to 400m
Motor constant
92
(x1)
0 to 3600m
Motor constant
93
(x2)
0 to 3600m
Motor constant
94
(xm)
859
Torque current
3) Refer to the following table and set [Pr. 83 and Pr.
84].
[Pr.] Name
83 Rated motor voltage
84 Rated motor frequency 10 to 120Hz
To enter the [Pr. 92, 93] motor constants in [mH]
<Operating procedure>
1) Set the following value in [Pr. 71]
Motor
Mitsubishi standard SF-JR
motor SF-JR 4P 1.5kW or less
Mitsubishi high
SF-HR
efficiency motor
Mitsubishi constant- SF-JRCA 4P
torque motor SF-HRCA
Vector control
SF-V5RU (1500r/min
series)
dedicated motor
.
* Available only for
A700
2) In the parameter setting mode, read the following
parameters and set desired values. Mitsubishi
motor constants are used when 9999 is set in [Pr.
82, 90 to 94, 859].
Calculate the [Pr. 94] value from the following
formula.
[Pr. 94] Setting = (1-
R1 I1 I2
V M R2/S
L1= I1+ M: Primary inductance
L2= I2+ M: Secondary inductance
Setting
Increments
,
0 to 500A 9999 0.01A
,
0.1A
0 to 3600A 9999
, Ω
Ω
0 to 50 9999 0.001
Ω Ω
, 9999 0.01m
Ω Ω
0 to 50 , 9999 0.001
Ω Ω
, 9999 0.01m
, Ω
Ω
0 to 50 9999 0.001
Ω Ω
, 9999 0.01m
Ω , Ω
0.001
0 to 50 9999
Ω Ω
, 9999 0.01m
Ω ,
0 to 500 9999
Ω
0.01
Ω
0 to 100 , 9999
,
0.01A
0 to 500A 9999
,
0 to 3600A 9999 0.1A
Setting Setting
Range Range
0 to 1000V 0.1V
0.01Hz
[Pr. 71]
Setting
0
20*
40
1
50
30*
2
M
) 100(%)
L1 L2
R1: Primary resistance
R2: Secondary resistance
I1: Primary leakage inductance
I2: Secondary leakage inductance
M: Excitation inductance
S: Slip
Motor equivalent circuit diagram
[Pr. ] Name
Motor excitation
82
current (no load
current)
90
Motor constant (R1)
91
Motor constant (R2)
92
Motor constant (L1)
93
Motor constant (L2)
94
Motor constant (X)
859
Torque current
3) Refer to the following table and set [Pr. 83, 84].
[Pr.]
83 Rated motor voltage
84 Rated motor frequency
(6) Perform tuning of the second applied
motor
A700
When you want to switch between two motors with
one inverter, set the second motor in [Pr. 450 Second
applied motor] (refer to page 266). Initial setting is
without second applied motor.
Turning the RT signal ON makes the following
parameters for the second motor valid.
To perform auto tuning of the second motor, replace
the parameter number stated in the previous
explanation with
corresponding to the one for the second motor in the
table below.
Functions
Motor capacity
Number of motor
poles
Motor excitation
current
Rated motor voltage
Rated motor
frequency
Motor constant (R1)
Motor constant (R2)
Motor constant (L1)
Motor constant (L2)
Motor constant (X)
Auto tuning setting/
status
275
PARAMETER
Setting Range
Setting
(Upper line : 55K or less
Increments
Lower line : 75K or more)
0 to 500A, 9999 0.01A
0 to 3600A, 9999 0.1A
Ω ,
0.001
0 to 50 9999
Ω
0 to 400m , 9999 0.01m
Ω ,
0 to 50 9999 0.001
Ω
0 to 400m , 9999 0.01m
0 to 1000mH, 9999 0.1mH
0 to 400mH, 9999 0.01mH
0 to 1000mH, 9999 0.1mH
0 to 400mH, 9999 0.01mH
0 to 100%, 9999 0.1%
0 to 100%, 9999 0.01%
0 to 500A, 9999 0.01A
0 to 3600A, 9999 0.1A
Setting Setting
Name
Range Range
0 to 1000V
10 to 120Hz 0.01Hz
the parameter
RT Signal is
RT Signal is ON
OFF
Second Motor
First Motor
[Pr. 453] [Pr. 80]
[Pr. 454] [Pr. 81]
[Pr. 455] [Pr. 82]
[Pr. 456] [Pr. 83]
[Pr. 457] [Pr. 84]
[Pr. 458] [Pr. 90]
[Pr. 459] [Pr. 91]
[Pr. 460] [Pr. 92]
[Pr. 461] [Pr. 93]
[Pr. 462] [Pr. 94]
[Pr. 463] [Pr. 96]
Ω
Ω
Ω
Ω
0.1V
2
number