UC-820
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ADCA UNIVERSAL PROCESS CONTROLLERS UC-820 DESCRIPTION The ADCATrol UC-820 is a digital universal controller used in the automation of industrial processes. It is ideally suited for use with our range of instrumentation, electric and pneumatic control valves and other electrical equipment. The controller includes a set of universal type inputs for RTD, thermocouple (TC), logic (binary) and analog inputs. The controller has options for relay, open-collector (OC) and analog outputs using the innovative SMART PID algorithm. MAIN FEATURES Universal measuring input: Resistance thermometer (RTD), thermocouples (TC), 0(4) to 20 mA and 0 to 5/10 V. Set point value: constant, programmed or from the additional analog input. On/off, PID, PID three-step and two-step control (valve control) or PID of heating-cooling type. 2 NO relay alarm outputs and 2 other outputs of choice between relay, OC or analog outputs (0/4 to 20 mA or 0 to 10 V). Binary input control. Soft-start function. 8 types of alarm functions. 24 V DC supply output to power transmitters and others. Signal retransmission. “Gain scheduling” and timer functions. Auto-tuning using the smart PID algorithm. Galvanically isolated inputs and outputs. Password protection. Fully programmable from the front panel. RS-485 Modbus RTU communication. IP rating IP 65. AVAILABLE MODELS: VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

ADCA TECHNICAL DATA GENERAL Supply voltage Ambient temperature IP rating Material Front panel NO volt free contacts, 2 A @ 230 V AC Continuous current Transducer supply 0 to (5)10 V, 0,2% ± 1 digit error Voltageless Additional current input Continuous voltage 2 change-over volt free contacts 0.5 A @ 230 V AC Operating position External magnetic field Storage temperature SAFETY AND COMPATIBILITY REQUIREMENTS Electromagnetic compatibility Noise immunity acc. to EN 61000-6-2 Noise emissions acc. to EN 61000-6-4 Pollution level DIGITAL INTERFACE Interface type Protocol Baud rate Installation...

ADCA ELECTRICAL CONNECTIONS TERMINAL STRIP CONNECTION OF INPUT SIGNALS PT100 (2 OR 3 WIRE) CURRENT INPUT OTHER CONNECTIONS POWER SUPPLY VOLTAGE INPUT CONTROL/ALARM OUTPUT SIGNALS ADDITIONAL ANALOG INPUT SIGNAL CURRENT TRANSFORMER INPUT OUTPUT 1, 2: CONT. CURRENT 0/4 to 20 mA RS-485 INTERFACE OUTPUT 1, 2: CONT. VOLTAGE 0 to 10 V VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

ADCA ORDERING CODES UC-820 Group designation Universal process controller Output 1 Relay Continuous voltage 0 to 10 V 24 V Transducer supply 24 V DC supply for transducers,1 W Power supply 85 to 253 V AC/DC a) Only admissible when a relay or OC voltage output is selected on output 1. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.