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
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vect
or
Open
Loop
Vec-
tor
2
C1-01
Accelera-
tion time 1
Sets the acceleration time to
accelerate from 0 to the maxi-
mum output frequency, in 1-
second units.
0.0 to
6000.0
*
10.0 s
Yes
Q
Q
Q
Q
Q
200H
4-5
6-15
Accel Time
1
C1-02
Decelera-
tion time 1
Sets the deceleration time to
decelerate from the maximum
output frequency to 0, in 1-
second units.
Yes
Q
Q
Q
Q
Q
201H
4-5
6-15
Decel Time
1
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
A
202H
6-15
Accel Time
2
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
A
203H
6-15
Decel Time
2
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
A
204H
6-15
Accel Time
3
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
A
205H
6-15
Decel Time
3
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
A
206H
6-15
Accel Time
4
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
A
207H
6-15
Decel Time
4
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 a
stopped method when a fault
has been detected.
No
A
A
A
A
A
208H
6-14
Fast Stop
Time
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