KEB COMBIVERT F5 Series Instruction Manual page 16

Parameter description
CP.13 Deceleration time
Co-domain
-0.01...300.00 s
∆f Frequency change
∆t Deceleration time for ∆f
CP.14 S-curve time
Co-domain
0.00 (off)...5.00 s
+f [Hz]
t1
-f [Hz]
t1 S-curve time (CP.14)
t2 Acceleration time (CP.12)
t3 Deceleration time (CP.13)
GB - 16
Setting
5.00 s
Example The drive should decelerate from 60 Hz to 10 Hz in 5 s.
Setting
0.00 s (off) For some applications it is of advantage when the drive starts and stops
t1 t1
t2
Description
The parameter determines the time needed to decelerate from 100 Hz
to 0 Hz. The actual deceleration time is proportional to the frequency
change. At deceleration time = -1 see CP.12 (Display: "=Acc")!
f [Hz]
100
0
∆f = 60 Hz - 10 Hz = 50 Hz
∆t = 5 s
∆t
CP.26 = –––– x 100 Hz = ––––– x 100 Hz = 10 s
∆n
Description
jerk-free. This is achieved through a straightening of the acceleration
and deceleration ramps. The straightening time, also called S-curve
time, can be adjusted with CP.14.
t2
t1
t1
t3
In order to drive defined ramps with activated S-curve time,
the acceleration and deceleration times (CP.12 and CP.13)
must be adjusted higher than the S-curve time (CP.14).
∆ t
∆ f
CP.26
5 s
50 Hz
t3
t1 t1
t [s]
t1
t [s]