Burkert Type 8625 Manual de usuario descargar pdf (Pagina 33)

8625-2 Standard - 31

english

6.6.6

INV

- heating (non-inverted control)/cooling

(inverted control)

Heating (non-inverted control):

Output signal y of the PI controller

increases with increasing positive

control difference x

= w-x.

Cooling (inverted control):

YES

Output signal Y of the PI controller

increases with increasing negative

control difference x

= w-x.

Example of applications:

Heating: : In the case of „heating“, a warmer fluid is added to a fluid flow by

means of a proportional valve. The temperature of the mixed fluid is measured

and the addition of the warmer fluid controlled.

Cooling: In the case of „cooling“, a cooler fluid is added to a fluid flow by

means of a proportional valve. The temperature of the mixed fluid is measured

and the addition of the cooler fluid controlled.

Î Via this function you set the sense of action between the input signal and

the setpoint of the valve (factory setting: NO).

non-inverted control

y = K

+ T

∑ x

)

inverted control

y = - K

+ T

∑ x

)

Fig.: Heating (non-inverted control)/cooling (inverted control)

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 117 118

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Burkert Type 8625 Manual de usuario Pagina 33