YASKAWA CR700, Technical Manual, Page: 604 / 886

11.4 C: Tuning
604 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
Figure 11.31 Accel/Decel Time Switchover Freq
The following table lists the possible combinations of acceleration and deceleration time switchover frequencies
and the acceleration times when using the Motor 2 Selection function.
Table 11.12 Motor and Acceleration and Deceleration Time Combination
Motor Accel & Decel Time
C1-11
Less than the Setting Value At Least the Setting Value
Motor 1
Acceleration Time C1-07 [Acceleration Time 4] C1-01 [Acceleration Time 1]
Deceleration Time C1-08 [Deceleration Time 4] C1-02 [Deceleration Time 1]
Motor 2
Acceleration Time C1-07 [Acceleration Time 4] C1-05 [Acceleration Time 3]
Deceleration Time C1-08 [Deceleration Time 4] C1-06 [Deceleration Time 3]
Motor 3
Acceleration Time C1-24 [Acceleration Time 2] C1-22 [Acceleration Time 1]
Deceleration Time C1-25 [Deceleration Time 2] C1-23 [Deceleration Time 1]
■
C1-22: Acceleration Time 1
No.
(Hex.)
Name Description
Default
(Range)
C1-22
(155F)
RUN
Acceleration Time 1
Sets the first length of time 3 to accelerate for motor from zero to the maximum output frequency.
10.0 s
(0.0 - 6000.0 s)
■
C1-23: Deceleration Time 1
No.
(Hex.)
Name Description
Default
(Range)
C1-23
(1560)
RUN
Deceleration Time 1
Sets the first length of time to decelerate for motor 3 from maximum output frequency to zero.
10.0 s
(0.0 - 6000.0 s)
■
C1-24: Acceleration Time 2
No.
(Hex.)
Name Description
Default
(Range)
C1-24
(1561)
RUN
Acceleration Time 2
Sets the second length of time to accelerate for motor 3 from zero to the maximum output
frequency.
10.0 s
(0.0 - 6000.0 s)
■
C1-25: Deceleration Time 2
No.
(Hex.)
Name Description
Default
(Range)
C1-25
(1562)
RUN
Deceleration Time 2
Sets the second length of time to decelerate for motor 3 from maximum output frequency to zero.
10.0 s
(0.0 - 6000.0 s)
◆
C2: S-Curve Characteristics
Use S-curve characteristics to smooth acceleration and deceleration and to minimize abrupt shock to the load.
Set S-curve characteristic time during acceleration/deceleration at start and acceleration/deceleration at stop.
The following figure explains how S-curves are applied.
V/f CL-V/f OLV CLV AOLV
V/f CL-V/f OLV CLV AOLV
V/f CL-V/f OLV CLV AOLV
V/f CL-V/f OLV CLV AOLV