C: Tuning; C1: Acceleration And Deceleration Times - YASKAWA FSDrive-MV1000 Parameter Manual

2.3

C: Tuning

C parameters are used to set the acceleration and deceleration characteristics, as well as S-curves. Other parameters in
this group cover settings for slip compensation and torque compensation.

◆ C1: Acceleration and Deceleration Times

C1-01 to C1-08: Accel, Decel Times 1 to 4
■
Four different sets of acceleration and deceleration times can be set in the drive. They can be selected by contact inputs,
by the motor selection, or can be switched automatically. Acceleration time parameters always set the time to accelerate
from 0 Hz to the maximum output frequency (E1-04). Deceleration time parameters always set the time to decelerate
from maximum output frequency to 0 Hz. C1-01 and C1-02 are the default active accel/decel settings.
No.
C1-01
C1-02
C1-03
C1-04
C1-05
C1-06
C1-07
C1-08
<1> The setting range for the acceleration and deceleration times is determined by the acceleration/deceleration time setting units in C1-10.
For example, if the time is set in units of 0.01 s (C1-10 = 0), the setting range becomes 0.00 to 600.00 s.
Switching Acceleration Times by Contact Input
Accel/decel times 1 are active by default if no input is set. The accel/decel times 2, 3, and 4 can be activated by contact
inputs (H1- = 7 and 1A) as explained in
Accel/Decel Time Sel. 1
H1- = 7
0
1
0
1
Figure 2.21 shows an operation example for changing accel/decel. times. The example below requires that the stopping
method be set for "Ramp to stop" (b1-03 = 0).
Figure 2.21
Output
frequency
FWD (REV)
Run command
Accel/Decel Time Selection 1
(Contact Inputs 2 to 16, H1-
Accel/Decel Time Selection 2
(Contact Inputs 2 to 16, H1-
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Name
Acceleration Time 1
Deceleration Time 1
Acceleration Time 2
Deceleration Time 2
Acceleration Time 3 (Motor 2 Accel Time 1)
Deceleration Time 3 (Motor 2 Decel Time 1)
Acceleration Time 4 (Motor 2 Accel Time 2)
Deceleration Time 4 (Motor 2 Decel Time 2)
Table
Table 2.12 Accel/Decel Time Selection by Contact Input
Accel/Decel Time Sel. 2
H1-
Decel Time 1
(C1-02)
Accel Time 1
Accel Time 2
(C1-01)
(C1-03)
ON
OFF
= "7")
= "1A")
Figure 2.21 Timing Diagram of Accel/Decel Time Change
0.0 to 6000.0 s
2.12.
= 1A
0
0
1
1
Decel Time 3
Decel Time 2
Accel Time 3
(C1-06)
(C1-04)
(C1-05)
Decel Time 1
(C1-02)
ON ON
ON
OFF
Setting Range
60.0 s
120.0 s
60.0 s
120.0 s
<1>
60.0 s
120.0 s
60.0 s
120.0 s
Active Times
Acceleration
C1-01
C1-03
C1-05
C1-07
Decel Time 4
(C1-08)
Accel Time 4
Decel Time 1
(C1-07)
(C1-02)
Time
OFF
ON
ON
ON
2.3 C: Tuning
Default
Deceleration
C1-02
C1-04
C1-06
C1-08
123