User Constant Tables
5-
31
Field Weakening: d6
User constants for the field weakening command are shown in the following table.
* 1. When C6-01 = 0, the upper limit is 150.0.
* 2. When C6-01 = 1, the upper limit is 400.0.
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Page
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
d6-01
Field weak-
ening level
Set the Inverter output volt-
age when the field weaken-
ing command is input.
It is enabled when the field
weakening command is set
for a multi-function input.
Set the level as a percentage
taking the voltage set in the
V/f pattern as 100%.
0 to
100
80%
No
A
A
No
No 2A0H
-
d6-02
Field
frequency
Set the lower limit in hertz of
the frequency range where
field control is valid.
The field weakening com-
mand is valid only at fre-
quencies above this setting
and only when the speed is
in agreement with the cur-
rent speed reference.
0.0 to
400.0
*1
0.0 Hz
No
A
A
No
No 2A1H
-
0.0 to
300.0
*2
d6-03
Field forc-
ing func-
tion
selection
Set the field forcing func-
tion.
0: Disabled
1: Enabled
0 or 1
0
No
No
No
A
A
2A2H
-
d6-06
Field forc-
ing limit
Set the excitation current ref-
erence’s upper limit for field
forcing. Set the limit as a
percentage, taking the
motor’s no-load current as
100%. Enabled for opera-
tion other than DC excita-
tion.
Usually, there is no need to
change this setting
100 to
400
400%
No
No
No
A
A
2A5H
-
