SX25 Series Process Controller - Spirax Sarco
SX25 Series Process Controller - Spirax Sarco
SX25 Series Process Controller - Spirax Sarco
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Second group parameters<br />
The display will show<br />
Stop<br />
tvn£<br />
This is used to start the automatic<br />
tuning. Using this table enter the<br />
following values into these<br />
parameters.<br />
Press the enter key to save<br />
the value entered and to move to<br />
the next parameter.<br />
When the last parameter has been<br />
entered, press the enter key<br />
to save this value.<br />
To exit press the scroll key .<br />
The display will show: PASS pass<br />
Press the scroll key again<br />
and the display will return to the<br />
normal operating mode.<br />
The controller is ready to operate.<br />
Now enter the required set point of<br />
20.0 bar by using the and<br />
keys.<br />
Parameter Description Default Customer<br />
Value set Values<br />
tune Tuning PID Stop Stop<br />
AdPt Adaptive tuning PID Stop Stop<br />
SL. u Set point ramp up Off Off<br />
SL. d Set point ramp down Off Off<br />
S.P. L Set point low limit 0.0 0.0<br />
S.P. H Set point high limit 50.0 25.0<br />
A2hy Alarm 2 hysteresis 0.5 0.5<br />
A2L.b Alarm 2 latching and blocking none Ltch<br />
A3hy Alarm 3 hysteresis 0.5 0.5<br />
A3L.b Alarm 3 latching and blocking none none<br />
t.F iL Time constant input filter Off Off<br />
In.Sh Input shift Off Off<br />
d.Err Error dead band Off Off<br />
St.OP Soft start output value Off Off<br />
Sa.OP Control output high limit 0.0 0.0<br />
To improve control of the application,<br />
adjust the proportional band and<br />
integral time accordingly.<br />
42<br />
IM-P323-25 CH Issue 3