
Individual Functions
6-
119
Setting Motor Constants
In vector control method, the motor constants are set automatically using autotuning. If autotuning does not
complete normally, set them manually.
Related Constants
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
E2-01
Motor rated
current
Sets the motor rated current in 1
A units.
These set values will become the
reference values for motor pro-
tection, torque limits and torque
control.
This constant is automatically
set during autotuning.
0.32 to
6.40
*2
1.90 A
*1
No
Q
Q
Q
Q
30EH
E2-02
Motor rated
slip
Sets the motor rated slip in Hz
units.
These set values will become the
reference values for slip com-
pensation.
This constant is automatically
set during autotuning.
0.00 to
20.00
2.90 Hz
*1
No
A
A
A
A
30FH
E2-03
Motor no-
load current
Sets the motor no-load current in
1 A units.
This constant is automatically
set during autotuning.
0.00 to
1.89
*3
1.20 A
*1
No
A
A
A
A
310H
E2-04
Number of
motor poles
Sets the number of motor poles.
This constant is automatically
set during autotuning.
2 to 48
4 poles
No
No
Q
No
Q
311H
E2-05
Motor line-
to-line resis-
tance
Sets the motor phase-to-phase
resistance in
Ω
units.
This constant is automatically
set during autotuning.
0.000
to
65.000
9.842
Ω
*1
No
A
A
A
A
312H
E2-06
Motor leak
inductance
Sets the voltage drop due to
motor leakage inductance as a
percentage of the motor rated
voltage.
This constant is automatically
set during autotuning.
0.0 to
40.0
18.2%
*1
No
No
No
A
A
313H
E2-07
Motor iron
saturation
coefficient 1
Sets the motor iron saturation
coefficient at 50% of magnetic
flux.
This constant is automatically
set during autotuning.
0.00 to
0.50
0.50
No
No
No
A
A
314H
E2-08
Motor iron
saturation
coefficient 2
Sets the motor iron saturation
coefficient at 75% of magnetic
flux.
This constant is automatically
set during autotuning.
0.50 to
0.75
*4
0.75
No
No
No
A
A
315H