KEB COMBIVERT F4-F Applications Manual

4
10
6
Name: Basis
KEB COMBIVERT F4-F
16.03.99
Functional Description Set Value and Ramp Adjustment
Chapter
Section Page Date
© KEB Antriebstechnik, 1999
All Rights reserved
1000
800
0
∆ n
1000
500
∆ t
SP.11
∆ n
∆ t
SP.12
∆ t
∆ n ∆ n
SP.13 *
1
∆ t
SP.14 *
1
t [s]
For the adjustment of the ramps the acceleration and deceleration times of the drive
must be preset. With parameters SP.11...SP.14 the time is defined which is required
to accelerate from 0 U/min to 1000 U/min respectively to decelerate from 1000 U/min
to 0 U/min. The actual acceleration time behaves proportional to the speed change
(∆ n).
6.4.5 Ramp Generator
+n [U/min]
-n [U/min]
Rotation
clockwise
Rotation
counter-clockwise
SP.11 Acceleration time
SP.12 Deceleration time
SP.13 *
1
Acceleration time counter-clockwise
SP.14 *
1
Deceleration time counter-clockwise
∆ n Speed change
∆ t Acceleration time for ∆ n
Fig. 6.4.9 Acceleration and deceleration times
Calculation of acceleration and deceleration times:
(also refer to following calculation examples)
∆ t
SP.11....SP.14 = —— x 1000 rpm
∆ n
Acceleration and
deceleration times
*1 If the value „off“ is adjusted in these parameters (acceleration and deceleration times for rotation counter-clockwise)
then the values adjusted in the parameters for clockwise rotation (SP.11 and SP.12) are valid.
The frequency inverter KEB COMBIVERT F4-F offers the possibility to display the
adjusted setpoint speed before and after the ramp generator. The setpoint speed
before the ramp generator is indicated in parameter ru.20 and the setpoint speed
after the ramp generator is shown in parameter ru.4.

KEB COMBIVERT F4-F Specifications

General

Brand	KEB
Model	COMBIVERT F4-F
Category	Lifting Systems
Language	English