Controller structure

P, I, PD, PI, PID

PID

Control loop feedback

Proportional band

0

to 9999 digits

0 digits

Size of the proportional band

0 means that the controller structure is out of action!

Derivative time

0

to 9999 sec

80 sec

Determines the differential component of the controller output signal

Reset time

0

to 9999 sec

350 sec

Determines the integral component of the controller output signal

Cycle time

0

to 9999 sec

20 sec

When using a switched output, the cycle time should be chosen so

that the energy fl ow to the process is quasi continuous, i.e. as con-

tinuous as is practicable without overloading the switching elements

Contact spacing

0

to 999 sec

0 digits

The spacing between the two controller contacts for double-

setpoint or modulating controllers, or proportional controllers

with an integrated actuator driver

Switching differential

0

to 999 digits

1 digits

Hysteresis for switching controllers with proportional band = 0

Actuator time

5

to 3000 sec

60 sec

The actually utilized operating time of the regulator valve with

modulating controllers or proportional controllers with an integrated

actuator driver

Working point

-100

to +100%

0%

The output level for P and PD controllers (if x = w then y = Y0)

Output level limiting

0

to 100%

100%

The maximum limit for the output level

-100

to +100%

-100%

The minimum limit for the output level

Minimum relay ON time

0

to 60 sec

0 sec

Limits the frequency of switching for switched outputs