Best E5 Series User Manual page 93

E5 User Manual
1: Broken-line Accel/Decel
Accel/Decel time is shifted based on output frequency during Accel/Decel.
When output frequency during Accel is higher than or equal to P12.13 (Accel time
switching frequency of broken-line Accel/Decel), P12.01 (Accel time 1) is enabled. When
lower than P12.13, P12.03 (Accel time 2) will be enabled.
When output frequency during Decel is higher than or equal to P12.14 (Decel time
switching frequency of broken-line Accel/Decel), P12.02 (Decel time 1) is enabled. When
lower than P12.14, P12.04 (Decel time 2) will be enabled.
 ATTENTION:
When broken-line Accel/Decel is enabled, " Accel/Decel time determinant 1" and "
Accel/Decel time determinant 2" will be disabled.
Broken-line Accel/Decel is as shown in Fig.5-9.
t1 = (P12.03)●(P12.13)/(P10.08)
t3 = (P12.02)●[f-(P12.14)]/(P10.08)
f is current frequency command, and P10.08 is maximum frequency.
2: S-curve Accel/Decel A
By adding a period of S-curve time to the initial and ending segments of Accel/Decel, it can
improve the smoothness of start/stop and prevent mechanical impact. See Fig.5-10:
输出频率
Output frequency
fmax
t1
（加速时间）
Accel time
Fig.5-8fmax is maximum frequency P10.08.
输出频率
Output frequency
f
P12.14
b2-14
P12.13
b2-13
t1
Accel time
(加速时间) (加速时间)
t2
（减速时间）
Decel time
t2
t3
Accel time Decel time Decel time
(减速时间)
Fig.5-9
t2 =(P12.01)●[f-(P12.13)]/(P10.08)
t4 = (P12.04)●(P12.14)/(P10.08)
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Chapter 5 Specification of Parameters
时间
Time
时间
Time
t4
(减速时间)