TR-Electronic CDV582 - Velocity Factor; Velocity Filter Type; Velocity Integration Time

Printed in the Federal Republic of Germany  TR-Electronic GmbH 2019, All Rights Reserved
11/21/2019 TR - ECE - BA - GB - 0139 - 02 Page 97 of 154
6.4.3.2.3 Velocity filter type
See also parameter Velocity filter intensity on page 96.
Selection
Value
Description
Default
static
0
The lowpass filter characteristic is applied on the actual
velocity value regardless of the drive’s current motion and
acceleration status, respectively.
X
dynamic
1
The lowpass filter characteristic is deactivated as soon as
the measuring system detects a significant acceleration in
the velocity signal.
The lowpass filter will be reactivated as soon as a uniform
motion is detected from the measuring system.
6.4.3.2.4 Velocity factor
Indicates the factor value for the Velocity format parameter, see page 96
Lower limit
1
Upper limit
1000
Default
1
6.4.3.2.5 Velocity integration time
Indicates the integration time in [ms] for the Velocity format parameter, see page 96
The parameter serves to calculate the velocity, which is output via the cyclic process data. The
velocity is specified in [ (steps/integration time) * factor ]. Long integration times allow high-resolution
measurements at low speeds. Low integration times show velocity changes more quickly and are
suitable for high velocitys and high dynamics.
Lower limit
1 ms
Upper limit
1000 ms
Default
100 ms
Example
Given:
- Programmed resolution = 8192 steps per revolution
- Speed = 4800 revolutions per minute
- Integration time t
i
= 50 ms = 0.05 s
- Factor = 1
Wanted:
- Output value in (steps/integration time) * factor
Number of steps / s =
8192 steps * 4800 rev.
=
655360 steps
Rev. * 60 s
1 s
Number of steps/t =
655360 steps
* 0.05 s
=
32768 steps
1 s
(Steps/integration time) * factor = 32768 steps / 50 ms