Honeywell VCR DCP200 Manual Do Utilizador

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DCP200 Profile Controller & Recorder - Product Manual
Page 14
Introduction
51-52-25-150, Issue 1 – April 2009
1 Introduction
This product is a 
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DIN size (96 x 96mm front) microprocessor based graphical process 
controller, featuring a 160 x 80 pixel, monochrome LCD with a dual colour (red/green) 
backlight. It can control process variables from a variety of sources such as temperature, 
pressure, flow and level.
The operating voltage is either 100-240V at 50/60 Hz or 24V-48V AC/DC depending on the 
model purchased. Optional features include a USB interface, RS485 or Ethernet 
communications, profile controlling and data recording. Non-volatile memory protects against 
data or configuration loss during power outages. If the unit is left un-powered, a lithium 
battery powers the data recorder’s real-time clock for a minimum of one year.
The USB Interface option allows uploading or downloading instrument configuration settings 
to/from a USB memory stick, for easy configuration of multiple instruments or transfer to/from 
the PC configuration software. If the Data Recorder of Profiler options are fitted, recordings 
and profile information can also be transferred via the memory stick.
The Data Recorder option allows the user to make recordings of the process over time. 
Recordings can be transferred to a memory stick using the USB Port or downloaded using 
one of the communications options.
The Profiler option allows the user to predefine up 255 segments, shared amongst up to 64 
Setpoint Profiles. These control the setpoint level over time, increasing, decreasing or 
holding its value as required. When combined with the real-time clock of the Data Recorder 
option, the profiling capabilities are expanded to allow automatic program start at a defined 
time and day.
Inputs are user configurable for thermocouple and RTD probes, as well as linear process 
signal types such as mVDC, VDC or mADC. Multipoint scaling can compensate for non-
linear signals. Output options include relays, SSR drivers, triacs or linear mV/voltage 
modules. These can be used for process control, alarms or retransmission of the process 
variable or setpoint to external devices. Transmitter Power Supply options can provide an 
unregulated 24V DC (22mA) auxiliary output voltage, or a 0 to 10VDC stabilised excitation
for external signal transmitters.
Alarm indication is standard on all instruments; up to five alarms can be defined. Alarms may 
be set as process high or low, deviation (active above or below controller setpoint), band 
(active both above and below setpoint), rate of input change, control loop or signal break 
types. Alarm status can be indicated by lighting an LED, changing the display backlight 
colour or viewing the alarm status screen. These alarms can be linked to any suitable output.
The controller can be programmed for on-off, time proportioning, or current proportioning
control implementations, depending on the output modules fitted, and feature manual or 
automatic tuning of the PID parameters. A secondary control output is available when 
additional output modules are fitted. Optional analogue Remote Setpoint inputs can be 
included. Configuration of the major settings is made easy by a Setup Wizard that runs 
automatically at first ever power-up or whenever option modules have been changed. Access 
to the full range of parameters is via a simple menu driven front panel interface, or the PC 
based configuration software.