Red Lion TCU - Manual

1
DSP
PAR
%PW
DEV
MAN
OP1
AL1
AL2
3.60
(91.4)
1.75
(44.4)
(96.5)
3.80
(49.5)
1.95
(137.4)
5.41
(134.4)
5.29
(10.2)
.40
+.6
-.0
+.02
-.00
(45.0 )
1.77
+.03
-.0
+.8
-.00
3.62
(92.0 )

100 msec SAMPLING PERIOD WITH 0.15% ACCURACY

ON DEMAND AUTO-TUNING OF PID CONTROL SETTINGS

DUAL LED DISPLAYS FOR SIMULTANEOUS INDICATION OF
TEMPERATURE AND SETPOINT, SECOND ANALOG INPUT OR
HEATER CURRENT

ACCEPTS 10 DIFFERENT TYPES OF SENSOR INPUTS
(Thermocouple or RTD)

SELF-DIAGNOSTICS

FULL PID CONTROL WITH REDUCED OVERSHOOT

OPTIONAL RS485 SERIAL COMMUNICATIONS INTERFACE

OPTIONAL DUAL ALARM OUTPUTS (USES OUTPUT MODULES)

OPTIONAL COOLING OUTPUT (USES OUTPUT MODULE)

OPTIONAL LINEAR 4 to 20 mA or 0 to 10 VDC OUTPUT FOR
CONTROL OR TEMPERATURE RE-TRANSMISSION

OPTIONAL HEATER CURRENT MONITOR AND BREAK ALARM

OPTIONAL MOTORIZED VALVE POSITION CONTROL AND
VALVE FAIL ALARM

OPTIONAL SECOND ANALOG INPUT FOR REMOTE SETPOINT
AND CASCADE CONTROL

OPTIONAL TYPE 4X/IP65 SEALED FRONT BEZEL

STATUS INDICATORS FOR OUTPUTS AND CONTROL MODES

PROGRAMMABLE USER INPUT (DIGITAL) FOR ADDED
FLEXIBILITY

SENSOR ERROR COMPENSATION (Slope and Offset) AND
BREAK DETECTION

MANUAL/AUTOMATIC AND LOCAL/REMOTE SETPOINT
CONTROL MODES

SETPOINT RAMPING FOR PROCESS STARTUP

PARAMETER SECURITY VIA PROGRAMMABLE LOCKOUTS

FIELD REPLACEABLE AND INTERCHANGEABLE OUTPUT
MODULES (Relay, Logic/SSR Drive and Triac)
DESCRIPTION
The TCU Controller accepts signals from a variety of temperature sensors
(thermocouple or RTD elements), precisely displays the process temperature,
and provides an accurate output control signal (time proportional or linear) to
maintain a process at the desired control point. A comprehensive set of easy to
use steps allows the controller to solve various application requirements.
The controller can operate in the PID control mode for both heating and
cooling, with on-demand auto-tune, which will establish the tuning constants.
The PID tuning constants may be fine-tuned by the operator at any time and then
locked out from further modification. The controller employs a unique overshoot
suppression feature, which allows the quickest response without excessive
overshoot. The unit can be transferred to operate in the manual mode, providing
the operator with direct control of the output. The controller may also be
programmed to operate in the ON/OFF control mode with adjustable hysteresis.
Dual 4-digit displays allow viewing of the process temperature and setpoint
simultaneously. Front panel indicators inform the operator of the controller and
output status. Replaceable and interchangeable output modules (relay, SSR
drive, or triac) can be installed for the main control output, alarm output(s) and
cooling output.
Optional dual alarms can be configured to activate according to a variety of
actions (Absolute HI or LO, Deviation HI or LO, Band IN or OUT, Heater
Break and Valve Fail Detect) with adjustable hysteresis. A standby feature
suppresses the output during power-up until the temperature stabilizes outside
the alarm region. An optional secondary output is available (for processes that
require cooling) which provides increased control accuracy and response.
MODEL TCU - TEMPERATURE CONTROL UNIT
DIMENSIONS In inches (mm)
Note: Recommended minimum clearance (behind the panel) for mounting clip installation is 5.5" (140) H x 2.1" (53.4) W.
Bulletin No. TCU-H
Drawing No. LP0314
Released 08/13
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
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51EB
IND. CONT. EQ.
PANEL CUT-OUT