United Process Controls PROTHERM 50, Руководство по эксплуатации

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UNITED PROCESS CONTROLS GMBH Page 11 Protherm 50 P68.230
Relay-allocation
Relay-name Function
UP-Relay actuator relay for Y> 0, with Cact release-relay for Y> 0
DOWN-Relay actuator relay for Y <0, with Cact release-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 ATM controller:
1. The furnace is on working temperature.
2. The flow rates of the regulation- and base gassing are set. An alteration of these quantities after the
optimization usually makes a readjustment of the parameters necessary.
3. 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.
TMP-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).
Akt.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.