Bright, dual displays with multi-language prompts (in English, French, German, Spanish, or Italian) make the operator interface easy to read, understand, and operate. Simple keystrokes let you set operating parameters that meet your process control needs.
The UDC3200 has two analog inputs with a typical accuracy of ±0.20% of full-scale input and a typical resolution of 16 bits. Both analog inputs are sampled six times per second (every 166 ms).
The first, or Process Variable input, can be one of the various thermocouple, RTD, Radiamatic or linear actuations. Linear actuations have thermocouple, RTD, and Radiamatic transmitter characterization capability as a standard feature. Linear actuations also have square root capability.
The optional second input is isolated and accepts the same actuations as input one, or it provides the Slidewire input for Position Proportional control.
All actuations and characterizations are keyboard configurable. Cold junction compensation is provided for thermocouple type inputs. Upscale, downscale or failsafe sensor break protection is keyboard configurable. A configurable digital filter of 0 to 120 seconds provides input signal damping.
Thermocouple Health - In addition to the standard configurable upscale, downscale or failsafe output burnout selections, the condition of the thermocouple can be monitored to determine if it is good, failing or in danger of imminent failure.
Algorithm—A pre-configured algorithm is available for easy implementation. This includes the capability of using a Ratio and Bias with any input. You can select from the following menu:
Feedforward Summer—Uses either input, followed by a Ratio/Bias calculation, summed directly with the computed PID output value to provide a resultant output to the final control element (standard feature).
Weighted Average —Computes the weighted average of a PV or SP for the control algorithm from two inputs (standard feature).
Feedforward Multiplier—Uses any input, multiplied by the calculated PID output to provide a resultant output which is sent to the final control element (standard feature).
Summer/Subtractor—Will add or subtract inputs with the result used as the derived PV.
Multiplier/Divider—Uses the analog inputs to calculate a derived PV. Available with or without Square Root.
Input High/Low Select—Specifies the PV input as the higher or lower of the two inputs. 51-52-03-39
Two* isolated digital inputs are provided for remote dry contact closure to select one of the following actions:
- Manual control mode.
- Local setpoint 1.
- Local setpoint 2.
- Local setpoint 3.
- Direct controller action.
- Hold SP Ramp/Program.
- Select PID set 2.
- PV = Input 2.
- ReRun - SP Ramp/Program.
- Run - SP Ramp/Program.
- External program reset.
- Disable PID integral action.
- Manual mode, failsafe output.
- Disable keyboard.
- Output 1 = Fixed value
- Start Timer.
- Auto/Manual Station
- Initiate Tuning.
- Initiate PV Hot Start.
- Output 1 tracks Input 2.
- To Remote Setpoint.
- PID reset feedback via Input 2
- Purge
- Low Fire
- To Latching Manual Mode.
Also, the digital inputs can allow one of the following selections to be combined with one of the above selections:
- Select PID set 2.
- Direct controller action.
- Local setpoint 2 or Local setpoint 1.
- Disable Accutune
- To Run – SP Ramp/Program
*The 2nd Current Output and the 2nd Digital Input are mutually exclusive. Selection is made via a keyboard entry.
Outputs and Control:
Output Types - The UDC3200 may have as many as five outputs made up of the following types:
- Current Outputs (4-20 or 0-20 ma)
- Electromechanical Relays (5 amps)
- Solid State Relays (1 amp)
- Dual Electromechanical Relays (2 amps)
- Open Collector Outputs
Output Algorithms - The UDC3200 is available with one or more of the following output algorithms:
- Time Proportional provides On-Off or Time Proportional (Relay) output.
- Current Proportional supplies proportional direct current output for final control elements, which require a 4-20mA signal. Output can be easily configured via the keyboard for 0-20mA operation without recalibration.
- Position Proportional—Positions a reversible motor with a feedback slidewire in proportion to the output of the control algorithm. Requires two output relays and the optional second analog input.
- Current Proportional Duplex is Similar to current proportional but provides a second set of tuning parameters and a split range current output or a second current output via the Auxiliary output option, for the heat and cool zones.
- Time Proportional Duplex - Depending on which control algorithm you select, this duplex output algorithm can provide On-Off Duplex, Time Proportional Duplex, or Three Position Step Control. The time proportional duplex output provides independent PID tuning constants and two time proportional outputs; one for heat zone above 50% output, and one for cool zone below 50% output.
- Current/Relay Duplex (Relay=Heat) - A variation of Duplex with Current active for 0 to 50% output (PID Set 2) and Relay 2 active 50 to 100% output (PID Set 1). Note that only one alarm is available for this output type.
- Relay/Current Duplex (Relay=Cool) - A variation of Duplex with Current active for 50 to 100% output and Relay 2 is active for 0 to 50% output. Note that only one alarm is available for this output type.
- Control Algorithms - Depending on the output algorithms specified, the controller can be configured for the following control algorithms:
- On-Off
- PID-A
- PID-B
- PD with Manual Reset
Three Position Step Control:
The TPSC algorithm allows the control of a valve (or other actuator), with an electric motor driven by two controller output relays; one to move the motor upscale, the other downscale without a feedback slidewire linked to the motor shaft.
Three Position Step is an automatic back-up mode to Position Proportional Control if the feedback slidewire signal should fail
3 control modes: Manual, Automatic with Local Setpoint, Automatic with Remote Setpoint
Alarms:
One or two electromechanical alarm relays are available to activate external equipment when preset alarm setpoints are reached. Each of the two alarms can be set to monitor two independent setpoints. Each alarm setpoint can be either high or low alarm. The alarm type can be selected to be either of the inputs, the Process Variable, Deviation, Output, Shed from communications, PV rate of change, or to alarm on manual mode activation or a Current Output Open failure. It can also be used as an On or Off event at the beginning or end of a Ramp/Soak segment. The alarm hysteresis is configurable from 0 to 100% of range.
- Alarms can be configured as latching or non-latching.
- Alarm blocking is also available which allows start-up without alarm energized until after it first reaches the operating region.
- PV rate of change alarm.
- Loop break alarm.
- Timer output reset.
- Diagnostic Alarm
Communication:
A communications link is provided between the UDC3200 and a host computer or PLC via the RS422/485 Modbus® RTU or Ethernet TCP/IP communications option. An infrared communication link is also available allowing a non-intrusive configuration of the instrument.
Miscellaneous Features:
Auxiliary Output* - Either or both of the two current outputs can function as an Auxiliary Output which can be scaled from 4-20 ma for 0 to 100% for any range. It can be configured to represent Input 1, Input 2, PV, active Setpoint, Local SP1, Deviation, or the Control Output.
Transmitter Power - This output provides up to 30 volts dc to power a 2-wire transmitter (it requires the use of alarm 2 open collector output selection or the second current output).
Three Local and one Remote Setpoints - Can be configured to provide three Local and one Remote Setpoints, which are selectable either via the keyboard or by Digital Input.
Universal Switching Power - Operates on any line voltage from 90 to 264 Vac 50/60 Hz without jumpers. 24 Vac/dc instrument power is available as an option.
Timer - This standard feature provides a configurable time period of 0 to 99 hours, 59 minutes or units of minutes and seconds. It can be started via the keyboard, alarm 2, or by a digital input. The timer output is Alarm 1, which energizes at the end of the Timer Period. Alarm 1 can be automatically reset. The Timer Period can be changed between each batch. Status is shown on the lower display.
Moisture Protection - The NEMA4X and IP66 rated front face permits use in applications where it may be subjected to moisture, dust, or hose-down conditions.
Setpoint Ramp/Soak Programming (Optional) - Enables you to program and store six Ramp and six Soak segments for setpoint programming. Run or Hold of program is keyboard or remote digital switch selectable.
Setpoint Rate - Lets you define a ramp rate to be applied to any local setpoint change. A separate upscale or downscale rate is configurable. A single setpoint ramp is also available as an alternative.
CE Mark - Conformity with 73/23/EEC, Low Voltage Directive and 89/336/EEC, the EMC Directive as a standard feature.
Approval Body Options - CSA certification is available as an option. UL listing is standard.
Two Sets of Tuning Constants - Two sets of PID parameters can be configured for each loop and automatically or keyboard selected.
Data Security - Five levels of keyboard security protect tuning, configuration, and calibration data, accessed by a configurable 4-digit code. Nonvolatile EEPROM memory assures data integrity during loss of power.
Diagnostic/Failsafe Outputs - Continuous diagnostic routines detect failure modes, trigger a failsafe output value and identify the failure to minimize troubleshooting time.
High Noise Immunity - The controller is designed to provide reliable, error-free performance in industrial environments that often affect highly noise-sensitive digital equipment.
Quality/Support - The UDC3200 is covered by an 18-month warranty and backed up by a toll-free phone number for technical assistance (US Only).
Accutune III™ - This standard feature provides a truly plug and play tuning algorithm, which will, at the touch of a button or through a digital input, accurately identify and tune any process including those with deadtime and integrating processes. This speeds up and simplifies start-up plus allows retuning at any setpoint. The algorithm used is an improved version of the
Accutune IIITM algorithm. Two possibilities are now offered when tuning your process: Fast Tune and Slow Tune.
- Fast Tune will tune the process in such a way that the temp is reached faster, a slight overshoot will be allowed.
- Slowtune will minimize overshoot, but it will take more time for the process temperature to reach the target setpoint.
- Heat/Cool (Duplex Tune) will automatically tune both the heating and cooling sides of the process.
- Fuzzy Logic - This standard feature uses fuzzy logic to suppress process variable overshoot due to SP changes or externally induced process disturbances. It operates independently from
Accutune IIITM tuning. It does not change the PID constants, but temporarily modifies the internal controller response to suppress overshoot. This allows more aggressive tuning to co-exist with smooth PV response. It can be enabled or disabled depending on the application or the control criteria.
Operator Interface
Indicators—Provide alarm, control mode, and temperature unit indication. There is also indication of when Remote Setpoint is active, the status of the control relays, and whether a setpoint program is in Run or Hold mode.
Displays— During normal operation, the upper display is dedicated to the process variable (4-digits) and special annunciator features. During configuration, the upper display provides guidance for the operator through prompts (7-characters).
During normal operation the lower display shows key-selected operating parameters such as Output, Setpoints, Inputs, Deviation, active Tuning Parameter Set, Timer Status, or minutes remaining in a setpoint ramp (4 digits). During configuration, the lower display provides guidance for the operator through prompts (8-characters).
You decide how the controller is to interact with the process by selecting, through simple keystrokes, the functions you want.
Multi-language prompts guide the operator step-by-step through the configuration process assuring quick and accurate entry of all configurable parameters. Five languages are available via configuration: English, French, German, Spanish and Italian.
Decimal Point Location—Configurable for none, one, two or three places.
Dedicated Keys—Provide direct access setpoint modes and setpoint program status to simplify and speed operation.
Universal Outputs – UDC3200 provides “out of the box” operations, with no need to open the case. There are no jumpers to connect, no switches to set, and no hardware configuration required.
