Lenze EVF9383 - Manual (Page 160)

Configuration
2−152
l
EDSVF9383V−EXT EN 2.0
2.4.52.1 Ramp function generator
The maximum speed of change with which the output signal can follow the input signal, is
parameterized via the acceleration and deceleration time of the ramp function generator. They refer
to a change of the output signal from 0 to 100%. The times to be set T
ir
and T
if
are to be calculated
as follows:
100 %
0
tir tif
Tir Tif
t
RFG1−OUT
[%]
w1
w2
T
ir
+ t
ir
@ 100 %
w2
* w1
T
if
+ t
if
@ 100 %
w2
* w1
Fig. 2−130 Acceleration and deceleration times of the ramp function generator
Here, t
ir
and t
if
are the desired times for the change between w1 and w2. You can set the calculated
value under C0671 (T
ir
) and C0672 (T
if
).
2.4.52.2 Load ramp function generator
You can initialize the ramp function generator with defined values via the inputs RFG1−SET and
RFG1−LOAD.
l As long as RFG1−LOAD = HIGH, the value at RFG1−SET is switched to RFG1−OUT.
l If the RFG1−LOAD = LOW, the ramp function generator accelerates from this value to its input
value at REG1−IN via the set T
i
times.