After changing a setting, boiler temperature or pressure should stabilize to the
new value. If the values fluctuate, the parameters must be checked. Pressure and
temperature should not go under or exceed the set values.
Examples of typical incorrect settings:
Characteristic
Control process
Control mode
Start-up procedure
P-term higher
decrease of attenuation stronger reaction with
overshoot
faster start-up with
overshoot
P-term lower
increase of attenuation
weaker reaction
less tendency to oscillate
slower start-up
P-term too high
P-term diagram ver. 1
Characteristic
Control process
Control mode
Start-up procedure
I-term higher
decrease of attenuation stronger reaction with
tendency to oscillate
faster start-up with
tendency to oscillate
I-term lower
increase of attenuation
weaker reaction
less tendency to oscillate
slower start-up
I-term too high
I-term diagram ver. 1
Characteristic
Control process
Control mode
Start-up procedure
D-term higher
decrease of attenuation stronger reaction
slower start-up
earlier decrease of power
D-term lower
increase of attenuation
weaker reaction
faster start-up
later decrease of power
D-term too high
M5164 1640EN
59 (95)
Содержание GKP-50 MH
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