YASKAWA GA700 Series Technical Manual page 696

12.4 C: Tuning
When the output frequency is at the C1-11 value, the drive automatically switches the acceleration and
deceleration times. Set this parameter to 0.0 to disable this function.
Table 12.35 lists the possible combinations of acceleration and deceleration time switchover frequencies and the
acceleration times for the Motor 2 Selection function.
Table 12.35 Motor and Acceleration and Deceleration Time Combination
C1-11
Less than the setting value
Equal to or more than the setting
value
■
C1-14: Accel/Decel Rate Frequency
No.
Name
(Hex.)
C1-14 Accel/Decel Rate
Frequency
(0264)
RUN
The acceleration and deceleration rates set in C1-01 to C1-09 [Acceleration/Deceleration Times 1 to 4, Fast Stop
Time] will change when the value of C1-14 changes.
• When C1-14 = 0.0 Hz
– C1-01, C1-03, C1-05, C1-07 [Acceleration Times 1 to 4]: Time to accelerate from 0 Hz to E1-04 [Maximum
Output Frequency]
– C1-02, C1-04, C1-06, C1-08 [Deceleration Times 1 to 4], C1-09 [Fast Stop Time]: Time to decelerate from
E1-04 to 0 Hz.
Figure 12.48 Example 1: Acceleration/Deceleration Rate (When C1-14 = 0 Hz, E1-04 = 60 Hz, and the Frequency
• When C1-14 ≠ 0.0 Hz
– C1-01, C1-03, C1-05, C1-07: Time to accelerate from 0 Hz to C1-14
– C1-02, C1-04, C1-06, C1-08, C1-09: Time to decelerate from C1-14 to 0 Hz
696
Figure 12.47 Accel/Decel Time Switchover Freq
Motor 1
Acceleration Time
C1-07 [Acceleration Time 4] C1-08 [Deceleration Time 4]
C1-01 [Acceleration Time 1] C1-02 [Deceleration Time 1]
V/f CL-V/f OLV
Sets the base frequency used to calculate acceleration and deceleration rates.
Reference is 60 Hz)
Deceleration Time Acceleration Time
C1-07 [Acceleration Time 4]
C1-05 [Acceleration Time 3]
Description
CLV AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
YASKAWA SIEPC71061705H GA700 Series Technical Manual
Motor 2
Deceleration Time
C1-08 [Deceleration Time 4]
C1-06 [Deceleration Time 3]
Default
(Range)
0.0 Hz
(0.0 - 590.0 Hz)