United Process Controls PROTHERM 50, Руководство по эксплуатации

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UNITED PROCESS CONTROLS GMBH Page 8 Protherm 50 P68.230
Duration of purging time in minutes
Refresh timer
Refresh time in minutes
Measurement enable/hold
The setting MW will hold also the measurements of probe-voltage and probe-temperature.
ATM-Controller
According to selection of the parameters, the algorithm can work as P -, PI -, PD - or PID-controller.
The controller considers the properties of the actuator.
A function for the automatic identification of the control loop is available, which determines the optimal
parameter set.
Two relative-limits are available, whose switching-points can be set to a fixed distance to the setpoint.
debit-value, stand. The effective direction (active on or active off) is selectable.
Two absolute-limits are available, whose switching-points can be set to a fixed value of the control vari-
able. The appropriate relays switch with exceeding of the switch-point (WA).
Act.SP
Display of the effective setpoint (regardless from local/remote mode)
Active local SP
Selection of the local setpoint 1/2. In operating mode Remote, „Remote “ is displayed and the setpoint is
not selectable.
Loc SP1, Loc SP2,
Setting of the local setpoints, which are only effective in local mode.
Cycle
Interval, after which the regulator calculates a new control value.
Xp
Proportional band of the regulator in % the standardization-value.
Ti
Integral element of the regulator in sec.
Td
Differential-element of the regulator in sec.
Ap
Approach. Area of the regulator-deviation (as factor of Xp) in which the Td of the regulator is effective.
Ymax