Keba ServoOne User Manual

volumetric flow rate control of the position controller. In addition, the filter can be
switched active or inactive for every control type via 6 bits in parameter P 2884
HYD_AdvFilCtrl (filter output is active if respective bit=1).
Bit Control type
0 Pressurecontrol
1 Volumeflowratecontrol
2 Cylinderspeedcontrol
3 Cylinderpositioncontrol
4 Pumpspeedcontrol
5 Volumeflowratecontrol(withoutpressurelimitation)
Table 7.85: Advanced filter settings
The coefficients a1 to b2 can be calculated using a mathematical software tool or a
coefficient calculator. The coefficients c0 serve as gain factors at the output of the
respective filter. To evaluate the quality of the filter, two scope variables are
available for input and output variables (P2843.24 AdvFilterOut, P2843.31
AdvFilterIn).
ID Index Name Unit Description
2876  HYD_AdvFilSel  AdvancedFilterSelection
2876 0 Type  Hydraulicadvancedfilter:type(0=off),(electronic
damping)
2876 1 Source(inputfilter1)  Selectorofinputtofilter1
OFF(0)=noeffectoncontrol
PressAct(1)=actualpressurevalueinbar
cyl_nACT(2)=cylinderspeedinrpm
CylSpeedAct(3)=cylinderspeedinmm/s
2876 2 Sink(outputfilter2)  Selectortooutputfromfilter2
OFF(0)=noeffectoncontrol
nFF(1)=Additivespeedsetpointinrpm
VolFF(2)=Additivevolumentricflowratesetpointin
rpm
Table 7.86: Parameter P 2876 HYD_AdvFilSel
ID No.: 0842.26B.5-01Date: 09.2020
ServoOne- Device Help
210
7 Control
ID Index Name Unit Description
2877  HYD_AdvFilCoeff  AdvancedFilterCoefficients(electronicdamping)
2877 0 BiQuadfilter1:a1  Hydraulicadvancedfiltercoefficient:filter1,a1
2877 1 BiQuadfilter1:a2  Hydraulicadvancedfiltercoefficient:filter1,a2
2877 2 BiQuadfilter1:b0  Hydraulicadvancedfiltercoefficient:filter1,b0
2877 3 BiQuadfilter1:b1  Hydraulicadvancedfiltercoefficient:filter1,b1
2877 4 BiQuadfilter1:b2  Hydraulicadvancedfiltercoefficient:filter1,b2
2877 5 BiQuadfilter1:c0  Hydraulicadvancedfiltercoefficient:filter1,c0
2877 6 BiQuadfilter2:a1  Hydraulicadvancedfiltercoefficient:filter2,a1
2877 7 BiQuadfilter2:a2  Hydraulicadvancedfiltercoefficient:filter2,a2
2877 8 BiQuadfilter2:b0  Hydraulicadvancedfiltercoefficient:filter2,b0
2877 9 BiQuadfilter2:b1  Hydraulicadvancedfiltercoefficient:filter2,b1
2877 10 BiQuadfilter2:b2  Hydraulicadvancedfiltercoefficient:filter2,b2
2877 11 BiQuadfilter2:c0  Hydraulicadvancedfiltercoefficient:filter2,c0
Table 7.87: Parameter P 2877 HYD_AdvFilCoeff
7.11.12Example:ConfiguringanMIOmodulewith0–20
mAsensors
Image 7.81: Configuration for operation with an MIO module with 0–20 mA sensors

Keba ServoOne Specifications

General

Brand	Keba
Model	ServoOne
Category	Controller
Language	English