5
-20
Autotuning Constants: C
The following settings are made with the autotuning constants (C constants): Acceleration/deceleration times,
s-curve characteristics, slip compensation, torque compensation, speed control, and carrier frequency func-
tions.
Acceleration/Deceleration: C1
User constants for acceleration and deceleration times are shown in the following table.
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
C1-01
Accelera-
tion time 1
Sets the acceleration time to
accelerate from 0 to the max-
imum output frequency, in 1-
second units.
0.0 to
6000.0
*1
10.0 s
Yes
Q
Q
Q
Q
200H
4-5
4-20
6-25
C1-02
Decelera-
tion time 1
Sets the deceleration time to
decelerate from the maxi-
mum output frequency to 0,
in 1-second units.
Yes
Q
Q
Q
Q
201H
4-5
4-20
6-25
C1-03
Accelera-
tion time 2
The acceleration time when
the multi-function input
“accel/decel time 1” is set to
ON.
Yes
A
A
A
A
202H
4-20
6-25
C1-04
Decelera-
tion time 2
The deceleration time when
the multi-function input
“accel/decel time 1” is set to
ON.
Yes
A
A
A
A
203H
4-20
6-25
C1-05
Accelera-
tion time 3
The acceleration time when
the multi-function input
“accel/decel time 2” is set to
ON.
No
A
A
A
A
204H
4-20
6-25
C1-06
Decelera-
tion time 3
The deceleration time when
the multi-function input
“accel/decel time 2” is set to
ON.
No
A
A
A
A
205H
4-20
6-25
C1-07
Accelera-
tion time 4
The acceleration time when
the multi-function input
“accel/decel time 1” and
“accel/decel time 2” are set
to ON.
No
A
A
A
A
206H
4-20
6-25
C1-08
Decelera-
tion time 4
The deceleration time when
the multi-function input
“accel/decel time 1” and
“accel/decel time 2” are set
to ON.
No
A
A
A
A
207H
4-20
6-25
C1-09
Emergency
stop time
The deceleration time when
the multi-function input
“Emergency (fast) stop” is
set to ON.
This function can be used as
a stopping method when a
fault has been detected.
No
A
A
A
A
208H
4-20
6-24
