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UDC900 Digital Indicating Controller
Specification
Overview
PV
The UDC900 Universal Digital
9 0 0
Controller is a microprocessor-
based, 1/16 DIN Temperature
L
SP
RDY
controller with auto-tuning. This
compact controller is available for
either panel or socket mounting.
The large and easy-to-read
9 0 0
EV1 EV2
OT
SP1
RDY
displays and tactile keyboard
make the UDC900 easy to set-up
and operate. (Figure 1)
PARA
The UDC900 is fully dedicated to
monitor and control temperatures
in a wide range of applications in
industries such as Plastics and
Semiconductors, Food and
Beverage, Packaging, Painting and
Coating, and Environmental
Chambers.
23674
(appears larger than actual size)
Figure 1 - UDC900 Digital Indicating Controller
It also satisfies the requirements
for process interruptions
Features, continued
Features, continued
(Run/Ready), Timers, and Heater
Break Alarms.
DIN Rail Mounting - Provides for
simple installation on a wall or
inside cabinets. Socket mounting
allows easy (plug-in) maintenance.
On/Off Control with Hysteresis -
On/Off control with differential gap
to reduce output cycling.
Features
Setpoint Limits- User specified
setpoint limits provide additional
operating security.
Dual Displays - Two 4-digit
displays with 7-segments can be set
to display PV, Setpoint, Control
Output, Event Setting values, or
Heater Current values.
Auto Tuning - Allows user entered
tuning parameters or automatic
calculation of appropriate values.
A user-entered manual reset is
provided for Proportional only
control.
Auto-tune provides process
response identification and
readjustment of PID parameters on:
Data Security- None or up to
three levels of keyboard security
protect all but setpoint, event
presets and Run/Ready key, or all
but setpoint and Run/Ready key,
or all changes.
Easy Configuration - Two
different configuration levels (Set-up
mode and Parameter mode) provide
easy access to the parameters and
their values or selections.
Non-volatile memory assures data
integrity on power loss.
• Process Start-up
• Setpoint Change
• Process Disturbance
Universal Switching Power -
Operates on any line voltage from
85 to 264 Vac 50/60 Hz without
jumpers.
Quality/Support - The UDC900 is
covered by a 2-year warranty and
backed up by technical assistance.
A front panel indicator flashes
when Auto-tune is active.
Run/Ready Key- Front panel key
(or external contacts) allows:
Thermocouple and RTD Inputs -
Models available for Thermocouple
(T/C) and Resistance Temperature
Detector(RTD), range selectable
through keyboard configuration.
(See Table 1)
• Process Interruptions
• Batch Processing
• Optional Remote Control
• Displays remain active.
Industrial Automation and Control, 1100 Virginia Drive, Fort Washington, PA 19034
Printed in U.S.A. ■ © Copyright 1997 Honeywell Inc.