User Constant Tables
5-13
Autotuning Constants: C
The following settings are made with the autotuning constants (C constants): Acceleration/deceleration times,
s-curve characteristics, slip compensation, torque compensation, and speed control.
Acceleration/Deceleration: C1
User constants for acceleration and deceleration times are shown in the following table.
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display
C1-01
Acceleration 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
60.0 s Yes Q Q 240H
Accel Time 1
C1-02
Deceleration time 1 Sets the deceleration time to
decelerate from the maximum
output frequency to 0, in 1-sec-
ond units.
120.0 s Yes Q Q 241H
Decel Time 1
C1-03
Acceleration time 2 The acceleration time when the
multi-function input “accel/
decel time 1” is set to on.
60.0 s Yes A A 242H
Accel Time 2
C1-04
Deceleration time 2 The deceleration time when the
multi-function input “accel/
decel time 1” is set to on.
120.0 s Yes A A 243H
Decel Time 2
C1-05
Acceleration time 3 The acceleration time when the
multi-function input “accel/
decel time 2” is set to on.
60.0 s No A A 244H
Accel Time 3
C1-06
Deceleration time 3 The deceleration time when the
multi-function input “accel/
decel time 2” is set to on.
120.0 s No A A 245H
Decel Time 3
C1-07
Acceleration time 4 The acceleration time when the
multi-function input “accel/
decel time 1” and “accel/decel
time 2” are set to on.
60.0 s No A A 246H
Accel Time 4
C1-08
Deceleration time 4 The deceleration time when the
multi-function input “accel/
decel time 1” and “accel/decel
time 2” are set to on.
120.0 s No A A 247H
Decel Time 4
C1-09
Emergency stop time The deceleration time when the
multi-function input “Emer-
gency (fast) stop” is set to on.
This function can be used as a
stopping method when a fault
has been detected.
10.0 s No A A 248H
Fast Stop Time
C1-11
Accel/decel time
switching frequency
Sets the frequency for auto-
matic acceleration/deceleration
switching.
Below set frequency: Accel/
decel time 4
Above set frequency: Accel/
decel time 1
The multi-function input
“accel/decel time 1” or “accel/
decel time 2” take priority.
0.0 to
100.00
0.00% No A A 24AH
Acc/Dec SW Freq
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