United Process Controls PROTHERM 50, Руководство по эксплуатации

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UNITED PROCESS CONTROLS GMBH Page 13 Protherm 50 P68.230
control variable
Actuator
Selection of the actuator for the regulator.
actuator type of control
Continuous The regulator switches no actuator relay. The analog output is used for an
actuator
Magnetic-valve The actuator relay correspondents to the control values. The ON/OFF relation
correspond to the Y-value:
Y = 30% >> the UP-relay is switched on 30% of the cycle.
Y = -60% >> the DOWN-Relay is switched on 60% of the cycle.
Servomotor The actuator relay generates adjustment pulses for a servomotor, the regulator
takes the integral behavior of the actuator into account.
Controller ON/OFF
Operating state of the controller.
DigIn LocSP
Allocation of a digital input for the selection of the local setpoint.
Relay-allocation
Relay-name
Function
UP-Relay actuator relay for Y> 0
DOWN-Relay actuator relay for Y <0
Rg1Relay output-relay for relative-limit 1, active ON or OFF
Rg2Relay output-relay for relative-limit 2, active ON or OFF
AG1-Relay output-relay for absolute-limit 1, actively ON,
AG2-Relay output-relay for absolute-limit 2, actively ON,
IDENT
The IDENT-function facilitates an automatic optimization of the settings of the controller.
Requirements for the TMP controller:
1. The furnace temperature is minimum 200°C below the desired setpoint or is cold.
2. For best results, the furnace must contain a charge.
Procedure:
1. manage the requirements, see above.
2. turn the regulators off (the identification works only with a turned off regulator).
3.set a setpoint at the low end of the working - area.
4. start the identification and wait for the results. After the end of the process, the regulator calculates
the matching parameters, switches itself on and approaches the setpoint.
5. Through observation verify that control behavior is satisfactorily.
Measurement Input
PT50 possesses three analog measurement inputs for Sensor – e.m.f. U.S. and the temperature inputs
TC1 and TC2. TCS is used for the calculation. For TCS, As alternative TC1 or TC2 can be used. The
regulators heed the thermo-break-supervision of that for the regulation responsible thermocouple.
Each measurement input contains an adjustable digital filter for the absorption of fast fluctuations of the
measurement value. In this menu, the filter-time-constant can be set for each input in s. A “0” turns the
filter OFF.