YASKAWA V1000 Series Installation & Start-Up Manual page 142

4.4 Basic Parameter Adjustments
Program two of the parameters H1-xx to "07" and "7A". The combination of these
two inputs activates the acceleration/deceleration times as shown below. As the
contacts of the terminals open and close, the following acceleration and
deceleration time combinations are possible:
Accel/Decel Time 1
H1- = 7
Open (not selected)
Closed
Open (not selected)
Closed
Automatically Switching Acceleration/Deceleration Times
■
The drive can automatically switch between acceleration and deceleration times.
When the output frequency reaches the value set to C1-11, the drive will switch
acceleration and deceleration times as shown in the graph below. Setting C1-11 to
0.0 Hz disables this function.
Figure 4.21
Accel/Decel Time
Switch Frequency
142
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Accel/Decel Time 2
H1- = 1A
Open (not selected)
Open (not selected)
Closed
Closed
Output Frequency
C1-11
C1-07
setting
When the output frequency
When the output frequency < C1-11, drive uses Accel/Decel Time 2 (C1-07, -08)
Figure 4.21 Accel/Decel Time Switching Frequency
Acceleration Time
C1-01
C1-03
C1-05
C1-07
C1-01 C1-02
setting setting
C1-11, drive uses Accel/Decel Time 1 (C1-01, -02)
Deceleration Time
C1-02
C1-04
C1-06
C1-08
C1-08
setting