Burkert Type 8746 - Manual (Page 25)

S
ensor
A
ktor
M
odul
Description of initiation files EDS
Description_of_InitiationFilesEDS_2 Version 1.4 page 23 / 27
0x2F11 Controller
sub name description
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1 kp Controller parameter RW x x - - x x x x x x
2 tn Controller parameter RW x x - - x x x x x x
3 SP Source
Defines which source is used as setpoint.
See attachement: “
Setpoint source ”
RW
x x x x x x x x x x
4 Stored SP Percent
Value in % of QNom.
It can be used as setpoint source (maybe in a stand alone
system).
see sub3
RW x x x x x x x x x x
5 Threshold Percent
Defines the controllers threshold in percent as REAL32
(0..30%).
Deactivated (0%) as default.
The threshold of the controller decide, below which value
(as percent of QNominal) the actuating variable is set to
zero directly (y2 = 0). The used setpoint is manipulated by
max positive (negative) rise time before.
RW x x x - x x x x x x
6
Max Positive Rise Time
Sec
Specifies the maximal positive rise time of an setpoint jump
from 0% to 100% in seconds. This rise time is used for
every positive setpoint jump.
By a value of 0, the setpoint
isn’t manipulated by this functionality.
RW x x x - x x x x x x
7
Max Negative Rise
Time Sec
Specifies the maximal negative rise time of an setpoint jump
from 0% to -100% in seconds. This rise time is used for
every negative setpoint jump.
By a value of 0, the setpoint
isn’t manipulated by this functionality.
RW x x x - x x x x x x
8 Control In xFilter
filter for the actual flow which is used for the closed loop
controller as input value
new since EDS 1.4 cutoff frequency fg in Hz as FLOAT32
(default deactivated 0 Hz)
RW x x x - x - x x x x
0x2F12 Sys Param _1
0x2F13 Sys Param _2
The customers fluid system in conjunction with the mounted valve is described by the Sys Param _x for each gas
calibration. It will be detected during the devices autotune function to manipulate the controller parameters in several
working ranges to get the best behaviour.
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1 Dutycycle1 value duty cycle for 0% flow RW - - - - x x x x
2 Dutycycle2 value duty cycle for 25% flow RW - - - - x x x x
3 Dutycycle3 value duty cycle for 50% flow RW - - - - x x x x
4 Dutycycle4 value duty cycle for 75% flow RW - - - - x x x x
5 Dutycycle5 value duty cycle for 100% flow RW - - - - x x x x