Logix TC-2000 Specification sheet

Copyright © 2006 Logix ®. All Rights Reserved. Logix is a Registered Trademark of The Controls Group Inc. Kirkland, WA USA
Logix® TC-2000 Dual Stage Process Controller
Operation and Installation Manual

Logix® TC-2000 Process Controller, Page 1 of 7
On
Off
Set
Logix® TC-2000 Dual Stage Process Controller Revised 07/10/2006
Operation and Installation Manual
Safety Notification
Important Safety Considerations
It is very important for the user to consider the adverse effects of power, wiring, component, sensor, or software failures in
designing any type of control or monitoring system. This TC-2000 Process Controller is not designed for applications in which
a malfunction of the Process Controller could result in a hazardous and or dangerous condition. In no circumstance may this
Process Controller be used to limit any piece of equipment to a safe mode of operation. This is especially important where
economic loss or human life is involved. It is important that the user employ satisfactory overall system design. It is agreed
between the buyer and Logix that this is the buyer’s responsibility. It is the responsibility of the installer to ensure that the
installation is in compliance with all national and local codes. Installation should only be attempted by a licensed electrician
familiar with codes, standards, and proper safety procedures for line-voltage installations.
Caution: Read this Entire
Document Prior to Installation and
Operation of this Unit.
Warning: Risk of Electrical Shock. Severe
injury or death can result from electric shock
during contact with line voltage wiring and
equipment. Disconnect and lock-out all power
sources during installation and service.
TC-2000 Process Controller Description
The TC-2000 Process Controller is a rugged two-stage On/Off process controller featuring data communications monitoring,
control and access with a Logix® Industrial Control System or monitoring and setpoint access with a standard PC. The unit is
housed in a water-tight Type 4X rated enclosure suitable for washdown and outdoor locations. Additional features include
independently adjustable setpoints and separate relay outputs. Each stage is configurable for operation in the Cooling or Heating
mode. High and Low temperature alarms providing a visual warning (flashing display) if the process temperature exceeds either
of the alarm setpoints. Additionally, the second relay output can be configured as an alarm output allowing direct control of an
external alarm horn or beacon. The controller comes complete with a reliable highly accurate solid-state temperature sensor
encased in a stainless-steel probe with eight feet of cable. An optional second temperature sensor is available which allows split
temperature monitoring and control. Also, a user field “scratchpad” setpoint is provided allowing computer access to field entered
information (e.g. specific gravity).
Button Functions
On/Off button - used to activate and deactivate the controller. When deactivated, the controller enters the standby
mode and both output relays are de-energized but power is not removed from the controller.
Arrow buttons - used to adjust setpoints and other operating parameters when configuring the controller.
During normal operation, pressing and holding the up arrow button will display the Stage 1 control Setpoint
(Stage 1 LED will also illuminate). Pressing and holding the down arrow button will display the Stage 2
control Setpoint (Stage 2 LED will also illuminate). Pressing and holding both the up and down arrow
buttons will display the second temperature (for Dual sensor controllers only).
Set button - used to access configuration setpoints and other operating parameters. This button can be locked out.
Refer to Locking the Set Button below.
Display Functions
Temperature Display - displays actual temperatures during normal operation. While in standby, the message “Stop” is
displayed. During configuration, setpoint temperatures, prompts and parameter values are displayed.

Logix® TC-2000 Process Controller, Page 2 of 7
Cooling Mode Diagram
Heating Mode Diagram
Stage 1 and 2 LEDs - used to indicate the on/off state of each output relay during normal operation. During configuration, the
LEDs indicate which stage is being configured.
Remote LED - used to indicate the TC-2000 is integrated, monitored and controlled remotely by a Logix® Industrial Control
System.
Network LED - used to indicate network communications activity between the TC-2000 controller and a Logix® Industrial Control
System or a standard PC (requires optional TankView™ PC software).
Controller Operation
Activating and De-activating the Controller - pressing the On/Off button will toggle between the Automatic and Standby modes
of operation. The On/Off button has a short delay built into it and must be held briefly to toggle the mode - this prevents
inadvertent mode changes. If power is removed and then reapplied to the controller, it will return to the operating mode it
was in prior to the power removal.
Viewing the Current Setpoint - while the controller is in the normal operating mode (not configuration), pressing the up arrow
button will cause the stage 1 setpoint to be displayed as well as lighting the Stage 1 LED. Pressing the down arrow button will
cause the stage 2 setpoint to be displayed as well as lighting the Stage 2 LED. When the button is released, the display will revert
back to the current temperature.
Stage 1 and Stage 2 Operation Stage 1 and Stage 2 can be independently set for either cooling or heating mode (see
configuration, below). Each stage has both a temperature control setpoint as well as a control deadband. The control deadband
prevents excessive output relay cycling by creating a “dead” control zone centered around the control setpoint. No control change
occurs while the temperature is inside of the control deadband. A typical mechanical thermostat has a 5 F deadband while the
TC-2000 deadband can be adjusted anywhere between 0 and 50 F.
Cooling Mode - in the cooling mode, the relay output will de-energize when the process temperature
falls below the temperature setpoint less one half of the deadband setpoint. Once the process
temperature rises above the temperature setpoint plus one half of the deadband setpoint the output
relay will energize.
Heating Mode - in the heating mode, the relay output will energize when the process temperature
falls below the temperature setpoint less one half of the deadband setpoint. Once the process
temperature rises above the temperature setpoint plus one half of the deadband setpoint the output
relay will de-energize.
During normal operation, whenever a Stage 1 or Stage 2 output relay is energized the respective Stage 1 or Stage 2 LED will be
illuminated.
High and Low Temperature Alarm - The high and low alarm functions provide a visual warning. The temperature display will
flash on/off if the process temperature exceeds the High Temperature Alarm setpoint or falls below the Low Temperature Alarm
setpoint. The flashing alarm indication will automatically reset when the process temperature returns to normal. Stage 2 can also
be configured as an alarm output (see Controller Configuration). When configured as an alarm, any alarm condition will energize
the stage 2 control relay output. The alarm output can be “silenced” or de-energized by pressing either the up or down key.
Differential Control - The TC-2000 dual sensor controller can be configured to control Stage 2 based on the difference
(differential) between sensor one and sensor two. To enable differential control, set the Stage 2 Mode setting to dIF and set the
Stage 2 Control Setpoint to the difference between sensor measurements (specifically, Sensor 2 minus Sensor 1). For example,
if the Stage 2 Control Setpoint is set at 5 F, the Stage 2 Deadband is set at 4 F and Sensor 1 measures 50 F, the Stage 2

Logix® TC-2000 Process Controller, Page 3 of 7
output relay will energize when Sensor 2 measures above 57 F (55 F + ½ of 4 F). The Stage 2 output relay would de-energize
when Sensor 2 measures below 53 F (55 F - ½ of 4 F). A negative Setpoint would energize when Sensor 1 exceeds Sensor 2.
Controller Configuration
All “programming”, including changing setpoints, is performed in the Configuration Mode. To enter the Configuration Mode press
the Set button, the SP1 prompt appears. Both output relays remain de-energized during configuration. Use the up or down
arrow buttons to change the displayed parameter value. Press and hold the up or down arrow buttons to rapidly advance the
parameter. Press the Set button again move to the next parameter (you may scroll through each configuration parameter by
repeatedly pressing the Set button). Pressing the On/Off button will exit the configuration mode.
All configured values are stored in non-volatile (permanent) memory and will be retained for a minimum of 10 years without
power. No batteries are required.
Configuration Steps
When changing a setpoint value, then new value is saved when the Set button is pressed. If no buttons are pressed within 30
seconds the controller will save all new values and exit the Configuration mode automatically.
Step# Prompt Parameter Adj Range Default
1 Stage 1 Control Setpoint -20 F to +200 F (-29°C to +121°C) 70.0 F
2 Stage 1 Deadband 0 to 30 F (0 C to 17 C) 5 F
3 Stage 1 Mode HEAT or COOL COOL
4 Stage 2 Control Setpoint -20 F to +200 F (-29°C to +121°C) 80.0 F
5 Stage 2 Deadband 0 to 30 F (0 C to 17 C) 5 F
6 Stage 2 Mode HEAT, COOL, ALA = Alarm, dIF =
Differential (Dual Sensor Configuration
Only), OFF=disabled
OFF
7 High Temp Alarm Setpoint -20 F to +200 F (-28°C to +121°C) &
OFF
OFF
8 Low Temp Alarm Setpoint -20 F to +200 F (-28°C to +121°C) &
OFF
OFF
9 High Temp Alarm Setpoint 2 (Dual
Sensor Configuration Only)
-20 F to +200 F (-29°C to +121°C) &
OFF
OFF
10 Low Temp Alarm Setpoint 2 (Dual
Sensor Configuration Only)
-20 F to +200 F (-29°C to +121°C) &
OFF
OFF
11 Alarm on differential (Dual Sensor
Configuration Only)
-200 F to +200 F (-110 C to +110 C) &
OFF
OFF
12 AdEL Alarm Time Delay In 10ths of minutes, 0 to 1000 minutes. 0
13 User field scratchpad -1000 to +1000 0
14 Display Units, F or C, Whole or
Tenths
F = F Whole Units, F.0 = F in Tenths, C
= C Whole Units, C.0 = C in Tenths,
F Whole
Units
15 Configuration Lock On or OFF OFF
16 Datacomm Address 0 (disabled) to 255 255
17 Datacomm Speed 9600, 19.2K 38.4K or 115.2K BPS 9600 BPS
18 Sensor 1 Calibration Offset -30 F to +30 F (-17 C to +17 C) 0.0 F
19 Sensor 2 Calibration (Dual Sensor
Configuration Only)
Offset -30 F to +30 F (-17 C to +17 C) 0.0 F
Locking the Set Button
The Set button can be disabled to prevent tampering by unauthorized persons by setting the “Loc” function to On. To access the
Configuration mode when the Set button has been locked, the controller must first be Deactivated using the On/Off button, then
re-activated while holding the Set button. When the controller is activated, the “SP1" prompt will be displayed indicating that it is
in the Configuration mode. After leaving the Configuration mode the Set button will remain locked unless the “Loc” parameter
was changed to “OFF”.

Logix® TC-2000 Process Controller, Page 4 of 7
Note that the User Field Scratchpad “FLd” parameter can not be locked out. If the Set button is pressed when the “Loc” function
is set to On, only the “FLd” configuration prompt will be displayed allowing modification to the User Field Scratchpad.
Setting Factory Default Setpoints
To change all setpoints back to the factory defaults settings first place the TC-2000 into Standby. Next press and hold Set, Up
and Down keys together and then press the On key for 5 seconds. The phrase “dFLT” will appear indicating the default
procedure is complete.
Controller Diagnostics
The controller continuously checks for internal errors. Should an error occur, both output relays shall de-energize (except if Stage
2 is configured as an Alarm “ALA” output in which case it will be energized) and one of the following error message will be
displayed:
Description Error Message
Sensor Fault Prb1 or Prb2
Microcontroller internal error Err1
Stuck Key Err2
Controller Installation
Warning: Risk of Electrical Shock. Multiple sources of electrical power may exist in this enclosure. To prevent
possible electrical shock or equipment damage, disconnect all sources electrical power to the unit before and
during installation. DO NOT restore electrical power to the unit until the controller is properly installed and the cover
is securely in place. DO NOT operate this unit if it becomes damaged in any way or if it the enclosure contains
water. Verify all connections are secure, fused and properly terminated before applying power the controller.
Caution: Tighten Controller line-voltage electrical connections to 12 Lb-In of torque. Use minimum #14AWG
60 C stranded copper conductors only.
Caution: Do NOT drill holes or cutouts anywhere in the enclosure except the bottom wall (the bottom wall is
where the factory ½" conduit hole and sensor cable fitting is located). Drilling holes or fabricating cutouts anywhere
in the enclosure except the bottom wall may create an unsafe condition and will VOID THE WARRANTY. If
unsure of this requirement, contact your TC-2000 supplier for more information.
Preparation
Read this entire manual prior to installation to avoid unnecessary problems. If the Controller computer network is to be wired, it is
more convenient to drill the additional cable /conduit fitting holes before mounting the enclosure. Do NOT use a twist-type drill bit
to fabricate holes as they will not drill smooth holes and may damage the Controller enclosure. A hole saw or step-bit will give
satisfactory results. Refer to the Network Cable Fitting Locations drawing below.

Logix® TC-2000 Process Controller, Page 5 of 7
TC-2000 Control Electrical Wiring Diagrams
Enclosure Mounting
Select a mounting location allowing unencumbered and convenient access to the controller. The controller should be mounted in
a location without direct exposure to sunlight. Loosen the four (4) large plastic cover screws and carefully remove the cover.
Unplug the interconnect wire harness from the Power/Relay circuit board located in the enclosure base. Allow the cover to hang
from the sensor wires while mounting the enclosure. Be careful not to damage the sealing edge of the enclosure walls. Mount
the controller to a flat vertical surface using four (4) suitable #8 stainless-steel screws (not supplied). Use the existing enclosure
mounting holes, which are external to the equipment cavity and located under the large cover screw threaded holes at each
corner.
Conduit Hubs and Fittings
The controller is supplied with hole suitable for a ½” conduit fitting. A conduit hub or fitting designated as type 4X “Liquid Tight”
must be utilized in order to maintain the watertight integrity of the enclosure. Conduit hubs must be connected to the conduit
before the hub is connected to the enclosure. Under no circumstances can low voltage (network/sensor) wiring and line voltage
control wiring be combined inside the same conduit.
Caution: This enclosure is non-metallic and does NOT provide a grounding means between conduit connections.
Use of grounding hubs and jumper wires is required.
Control Wiring
Loosen the four (4) large plastic cover screws and carefully remove the cover. If not done so already, unplug the interconnect
wire harness from the Power/Relay circuit board located in the enclosure base. Allow the cover to hang from the sensor wires
while the control wiring is being done. Be careful not to damage the sealing edge of the enclosure walls. All of the line voltage
wiring is done to the Power/Relay circuit board located in the enclosure base.
All wiring should be performed by a qualified electrician following the National Electric Code and local regulations. Use stranded
copper conductors only. The total electrical load must not exceed the rating of the controller (see specifications). Twenty (20)
ampere maximum branch circuit protection is required for both the controller power and relay contact circuits. The relay contact
circuit can be combined with or be independent of the controller power circuit. Multiple TC-2000 controllers may share power and
relay circuits.

Logix® TC-2000 Process Controller, Page 6 of 7
Network Cable Fitting Locations
Network Wiring Diagram
Network Wiring
To maintain enclosure watertight integrity, the low-voltage network cable(s)
must either be placed inside a separate low-voltage-only 4X liquid-tight
rated ½" conduit or be secured with a PG7 type 4X liquid-tight rated strain
relief (one for each cable). Under no circumstances can low voltage
(network/sensor) wiring and line voltage control wiring be combined inside
the same conduit. It is more convenient to drill the additional cable/conduit
fitting holes before mounting the enclosure. Do NOT use a twist-type drill
bit to fabricate holes as they will not drill smooth holes and may damage
the Controller enclosure. A hole saw or step-bit will give satisfactory
results.
Remove all power sources before opening the TC-2000 enclosure. The
network wiring connections are made to the display circuit board mounted
in the enclosure cover. Carefully follow the wiring diagrams shown below when connecting the network. The network cable must
“daisy-chain” from controller to controller with the last controller having a only single cable attached. No more than two (2)
network cables are allowed inside any controller box. Any other configuration will NOT function correctly.
Final Inspection and Cover Reassembly
Verify all wiring with wiring diagrams. Confirm there are no loose strands of wire or exposed shielded cables. Carefully insert the
interconnect wire harness plug into mating socket located on the Power/Relay circuit board. Reinstall the cover while verifying all
cables and wires are completely within the enclosure and are not interfering with the enclosure seal. Carefully tighten the four (4)
large plastic cover screws evenly. Do not over tighten.
Sensor Wiring
The temperature sensor probe assembly is pre-wired at the factory. The temperature sensor probe wiring connections are made
to the display circuit board mounted in the enclosure cover. If sensor removal or replacement is required, be sure to follow the
wire color designations printed on the circuit board when reconnecting the sensor.

Logix® TC-2000 Process Controller, Page 7 of 7
TC-2000 Specifications
Power Requirements
Model TC-2000-120/240: 115/220VAC ±15% 50/60Hz 10 VA Max. Fuse F1: 0.1 Amp Fast-Acting 250VAC 5x20mm,
Wickmann 193-0100 or equal.
Model TC-2000-24: 24VAC ±15% 50/60Hz 10 VA Max. Fuse F1: 0.5 Amp 250VAC Fast-Acting 5x20mm, Wickmann
193-0500 or equal.
Stage 1 & 2 Output SPDT Relay Ratings
115VAC 208/220VAC 24VAC Fuse F2 and F3: 10 Amp Time-Delay
250VAC 5x20mm, Wickmann 181-2100
or equal
N.O. N.C. N.O. N.C. N.O. N.C.
Resistive/GP Amps: 10.0 6.0 5.0 3.0 10.0 6.0
Full-Load Amps: 9.8 5.8 4.9 2.9
Lock Rotor Amps: 58.8 34.8 29.4 17.4
Horsepower: ½ HP 1/3 HP ½ HP 1/4 HP
Pilot Duty: 125VA 125VA 125VA 125VA 125VA 125VA
Environmental
Operating Ambient Temperature -4 F to +122 F (-20 C to +50 C)
Storage Temperature -40 F to +176 F (-40 C to +80 C)
Hosedown Listed Type 4X, meets and passed UL Standard 50, section 35 hosedown test.
Regulatory Safety Approvals
ETL Listed File Number 3028665
Standard Conformance UL Standard 508 for Industrial Control Panels, Canadian CSA Standard C22.2 No14-95. UL
Standard 50 for Type 4X Enclosure. Each unit HiPot tested to 1,700 Volts AC.
Ordering Information
TC-2000 Model Description
TC-2000-120/240 120VAC or 208/240VAC Controller Power. Single Temperature Probe.
TC-2000-120/240-2 120VAC or 208/240VAC Controller Power. Dual Temperature Probes.
TC-2000-24 24VAC Controller Power. Single Temperature Probe.
TC-2000-24-2 24VAC Controller Power. Dual Temperature Probes.
Warranty and Copyright Information
Copyright © 2006 Logix ®. All Rights Reserved. Logix is a Registered Trademark of The Controls Group Inc. Kirkland, WA USA
The information contained in this document is subject to change without notice. Logix makes no warranty of any kind with regard
to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Further, Logix assumes no responsibility for any errors which may occur in this document. No part of this document may be
copied or reproduced in any form, without the prior written permission of Logix. This document was printed in the USA.