Honeywell UDC2800 User Manual

17
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.
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Alarms can be configured as latching or non-latching.
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Alarm blocking is also available which allows start-up without
alarm energized until after it first reaches the operating region.
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PV rate of change alarm.
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Loop break alarm.
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Timer output reset.
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Diagnostic Alarm
Communications
A communications link is provided between UDC2800 and a host
computer or PLC via the RS485 Modbus® RTU (optional) or Ethernet
TCP/IP (optional) communications option. A Bluetooth
communication link is also available allowing a non-intrusive
configuration of the instrument.
Chapter 2 - Introduction

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X