6
4
17
KEB COMBIVERT F5-M / S
Name: Basis
12.05.04
Section
Page
Date
©
KEB Antriebstechnik, 2002
All Rights reserved
Chapter
Functional Desription
Setpoint- and Ramp Adjustment
6
The different ramp functions can be adjusted separately for every frequency change
(acceleration forward, deceleration forward and so on). The selection is made with
oP.27 and is adjustable separately in each set.The function is activated after
pressing ÑENTERì. In case of several selections the sum of the values must be
entered:
Ramp
Bit-No
Value
Mode
Reference speed
0
const. ascent
1000 rpm (dep. on ud.2)
Acc.
0 + 1
1
const. time
actual set value
forward
2
* const. time
last set value at constant run
3
reserved
0
const. ascent
1000 rpm (dep. on ud.2)
Dec.
2 + 3
4
* const. time
actual set value
Vorward
8
const. time
last set value at constant run
12
reserved
0
const. ascent
1000 rpm (dep. on ud.2)
Acc.
4 + 5
16
const. time
actual set value
Reverse
32
* const. time
last set value at constant run
48
reserved
0
const. ascent
1000 rpm (dep. on ud.2)
Dec.
6 + 7
64
* const. time
actual set value
Reverse
128
const. time
last set value at constant run
192
reserved
* Do not adjust these values - they are only sensible, if acceleration respectively
deceleration do not occur from/to standstill.
If the mode constant time is activated for a ramp, then the s-curve function is
deactivated for this ramp. The ascent is limited to minimum 1000 rpm (dep. on
ud.2) / 4800 s.
Ramp mode (oP.27)
f_soll
f_ist
t
t_rampe
t_rampe
t_rampe
t_rampe
t_rampe
Fig. 6.4.9.b Forward deceleration with constant ramp time
n _ s o l l
n _ i s t