Honeywell UDC3500 Product Manual page 19

8 Segment Characterizers—Two characterizers are available that can be applied to any
Analog Input, to Loop 1 Output or to Loop 2 Output. The Characterizers can be
combined to produce a single 16-segment characterizer.
Totalizer—Calculates and displays the total flow volume as measured by any of the
analog inputs or as derived by either Math algorithm. Displayed value is eight digits with
a configurable scaling factor. The totalizer value may be reset.
Combinational Inputs—Inputs can be combined for use with Relative Humidity, %
Oxygen, Carbon Potential, Dewpoint or Math Algorithms. This controller can accept
carbon probes from Cambridge, Marathon Monitors, Corning, A.A.A.C, Barber
Coleman, MacDhui, Bricesco or Furnace Controls.
Polynomial Curve Characterizer—A fifth order polynomial equation can be used on
any one of the analog inputs.
Logic Gates—Five Logic Gates configurable as OR, NOR, AND, NAND, XOR, XNOR,
or COMPARATOR. Each Gate has two inputs and one output. The Gates may be linked
together to perform more complex functions.
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Characterizers are mutually exclusive with Setpoint Program #4.
Digital Inputs
Four isolated digital inputs are provided for remote dry contact closure to select one of 25
actions. Also, two of these digital inputs can allow one of six additional selections to be
combined with one of the above selections.
Outputs
Output Types - The UDC3500 may have up to seven of the following outputs:
• Current Outputs (4-20 or 0-20 mA)
• Electromechanical Relays (5 amps)
• Solid State Relay (1 amp)
• Dual Electromechanical Relays (2 amps)
• Open Collector Output (+30 VDC @ 20 mA)
Alarms
Up to four electromechanical alarm relays are available to activate external equipment
when preset alarm setpoints are reached. Each of the four 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. An individual alarm hysteresis setting is
provided for each relay and these are configurable from 0 to 100% of range.
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Alarms can be configured as latching or non-latching.
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Introduction
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