Burkert 8630 Instructions De Service page 134

Entry of the dead band in % relative to the range of the selected process set-point input
Input type used for
PV
4..20 mA
Frequency
Pt100
Position setpoint
Fig. 6.16: Deadband by process control
P.co - para
Controller PID parameters
NOTE A table for noting the reference points entered is to be found in the Annex
Top Control Continuous
Range Spread (as reference
for the dead band)
4 .. 20 mA 16 mA
0 .. 1000Hz 1000 Hz
-20 .. +220°C 240°C
Control
difference
Xd2
Actual
position
Example:
1% dead band corresponds to
0,16 mA
10 Hz
2,4°C
Xd2'
Xd2
DBND
Proportional correction value
0...99.99 (factory setting 1.00)
Reset time
0.5...999.9 (factory setting 999.9)
Rate action time
0.5...999.9 (factory setting 0)
Operating point of process controller
0.0...100 % (factory setting 0 %)
See Appendix
to the controller
Xd2'
133