Burkert 8692 Operating Instructions Manual page 103

Type 8692, 8693
Start-Up
24.5.2.1. Preparatory measures for execution of P.TUNE in the MANUAL
operating state
Moving.process.actual.value.PV.to.the.operating.point:
Key Action
Setting.on.the.process.level:
/ Select PV
MANU
Press
Open valve OPN
Close valve
CLS
As soon as the process actual value PV is constant, the P.TUNE function can be started.
Table 47: P.TUNE; preparatory measure for running X.TUNE in the MANUAL operating state
24.5.2.2. Preparatory measure for execution of P.TUNE in the
AUTOMATIC operating state
By inputting a process set-point value SP, move the process actual value PV to the operating point.
Observe.the.internal.or.external.set-point.value.default.for.the.input.
(P,CONTROL → SETUP → SP-INPUT → intern/extern):
For.internal.set-point.value.default:.. I nput the process set-point value SP via the device keyboard
For.external.set-point.value.default:.. I nput the process set-point value SP via the analog set-point value
Inputting.a.process.set-point.value:
Key Action
Setting.on.the.process.level:
/ Select SP
INPUT
Press
/ Input value
<–
Select decimal place
Increase value
OK
Press
Table 48: P.TUNE; preparatory measure for running X.TUNE in the AUTOMATIC operating state
The process variable PV is changed according to the set-point value default based on the factory default PID
parameters.
→
Before running the P.TUNE function, wait until the process actual value PV has reached a stable state.
Description
The process actual value PV is indicated on the display.
Change to MANUAL operating state.
The input screen for manually opening and closing the valve is
displayed.
By opening or closing the control valve, move the process actual
or
value to the required operating point.
see description below "Table 48" ).
input.
Description
The process set-point value is indicated on the display.
The input screen for inputting the process set-point value is
displayed.
The selected set-point value SP should be near the future operating
point.
Acknowledge input and return to the display of SP.
English
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