Schneider Electric TTS-SD Installation Instructions

Smart Sensor

Contents

Installation 2

Operation 6

Configuration & Programming 6

Reading the Keypad 8

Display Programming 9

Displaying a Numeric Value 11

Manually Displaying Message Icons
on the LCD Module 13

Troubleshooting 14

Program Examples 14

1

Installation & User’s Guide

The Smart Sensor family of wall-mounted modules makes your building’s automation
system accessible to any tenant or operator in the facility, allowing them to quickly access
HVAC information and adjust personal comfort levels with little or no training.

Although it looks like a typical temperature sensor temperature sensor or thermostat,
the Smart Sensor, in addition, includes a display and a 6-button ergonomically designed
programmable keypad. With one touch of a finger, a user can scroll through building
parameters such as temperatures or pressures, view equipment status, change setpoints
and schedules, turn equipment on and off, or air balance VAV boxes.

The keys can be custom programmed to perform a wide variety of functions, including
switching a specific zone to occupied mode, signaling an alarm condition, adjusting the
amount of override time, arming or disarming a security system, and enforcing password
security. Programming the display and function keys is done with Andover’s Plain English
programming language.

The Smart Sensor module offers several built-in options to meet your particular building
needs, including the choice of either a 4-character LCD or 2-character LED display.

The Smart Sensor interfaces directly to Andover’s TCX 866 and TCX 867 controllers. The
Smart sensor can interface with Infinity controllers that contain EMX ports (e.g., TCX­850, LCX-810, SCX-920) by using the TTS-SD-INFBUF interface board.

SMART SENSOR FAMILY CHARACTERISTICS

The following table lists the features included in the Smart Sensor family members:

Appendix A 15

LCD Operation & Control 15

LED Operation & Control 17

LED & LCD Keypad Operation 19

Model Temperature Sensor 4-Char LCD

Display

TTS-SD-LCD * *

TTS-SD-LED * *

After unpacking the unit, take care to not damage the packaging material, you must
reuse it if you ship the product back for repair.

PARTS INCLUDED WITH THE SMART SENSOR MODULE

Smart Sensor Module•

Hardware Reference Manual (this document)•

2-Char LED

Display

Smart Sensor

Installation

MECHANICAL INSTALLATION

The sensor may be mounted directly on dry wall, or on any electrical outlet box with no
adapters required. This sensor is for indoor use only and is not suitable for use where

condensation may occur.

THE SENSOR COVER

The cover is fastened to the base using Allen screws.

The cover is removed by inserting a #6 Allen tool into the two Allen fasteners found in
the bottom of the case as shown, Figure 1.

Turn the screw clockwise (inward) until the case lifts easily.

Remove the cover by lifting the front bottom outward.

TO INSTALL THE BASE
Note: If you are mounting the sensor to an existing electrical box, skip steps 1, 2 and 3.

To prevent drafts from affecting the sensor reading, cover the openings in the back of
the case.

1. Place the case back on the surface of the wall area where the sensor is to be mounted
and mark the location of at least three mounting holes.

2. Drill the marked holes and insert wall anchors into the surface.

3. Mount the back using at least three screws as shown in
Figure 2.

4. Guide your facility wiring into the area of the case. Connect your wires to the probe
wires that are part of the cover assembly using wire nuts, (see electrical connection
section).

5. Collect any slack wire, fold and tuck into the case.

6. Fasten the cover to the mounted section. Hook the cover to the base as shown in
Figure 3.

7. Turn the Allen screws counterclockwise (outward) until the cover is locked in place.

2

FIGURE 1

AFTER MOUNTING: TO REMOVE THE COVER

Remove the cover from the case by inserting the tip of a small flat-head screwdriver
into the two tab release areas in the bottom of the case as shown. Remove the cover by
lifting the front bottom outward.

FIGURE 3

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FIGURE 2

FIGURE 4

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Smart Sensor

ELECTRICAL CONNECTION TO TCX 866

The Smart Sensor module is powered by and accessed through an
external TCX 866 VAV controller. The connection between the two
uses three wires. These wires attach to an internal terminal block
(Figure 7) located under the plastic cover of the TCX 866, Figure 6.

To access the terminal block and remove the cover, simply pull
outward on the two opposite tabs that lock the cover to the base
and pull upward.

CONNECT THE SMART SENSOR TO THE TCX 866 AS SHOWN IN
FIGURE 7.

The TCX 866 supplies power and communicates with the keypad
and the display of the Smart Sensor over a single wire (the SPWR
connection).

The RET line is the return for both the power supplied to the module
and the internal thermistor.

The IN3 signal is the active lead from the thermistor. It connects to
the IN3 Analog input to the TCX 866. Temperature readings from
the Smart Sensor are read as Input 3.

The (Infinet -) and (Infinet +) wires provide access to the Infinet for
the Lap-Top Service Tool connector on the bottom of the module.

3

Connection to the Smart Sensor is located
behind this plastic cover.

FIGURE 5

Connection to the Smart
Sensor is made here.

FIGURE 6

FIGURE 7

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Smart Sensor

ELECTRICAL CONNECTION TO TCX 867

The interface between the TCX 867 and the Smart Sensor Bus consists of three wires connected to the following positions on
the sixteen-terminal output connector located on the right side of the Controller module:

14 RET
15 IN3
16 SPWR

The TEC 867 supplies power and communicates with the keypad and the display of the Smart Sensor device over a single wire
(the SPWR connection).

The RET line is the return for both the power supplied to the module and the internal thermistor.

The IN3 signal is the active lead from the Smart Sensor thermistor. It connects to the IN3 input to the TCX 867. Temperature
readings from the Smart Sensor are read as Input 3.

Figure 8 illustrates the connection between the two units.

Note: Input 3 is located on both the Input connector and on the 16-position Output connector. DO NOT USE the IN3
connection on the Input connector as a general temperature input when connecting the Smart Sensor.

4

FIGURE 8

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Smart Sensor

ELECTRICAL CONNECTION TO TTS-SD-INFBUF BOARD

1. Locate the interface wires from the Smart Sensor and route them to the Buffer Board.

2. Connect the wires as shown:

5

FIGURE 9

Position the Smart Sensor type jumper according to the version of sensor connected, Figure 10.

FIGURE 10

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Smart Sensor

LAP TOP SERVICE TOOL/BALANCE TOOL CONNECTION

The Smart Sensor module includes an interface to the
Andover Controls Lap-Top Service Tool and the Balance Tool.

Tool connection to the Smart Sensor requires a special
adapter cable. This two wire shielded cable includes a special
connector.

6

To connect the module to the Tool, follow Figure 11.

FIGURE 11

Dimensions

The Smart Sensor modules are designed to be mounted flush with a
wall. The overall dimensions of the unit are as shown in Figure 12.

FIGURE 12

Operation

The Smart Sensor module requires connection to an external controller. After installation, the following tasks must be performed
before you can use the Smart Sensor:

1. Create a set of appropriately named points for the Smart Sensor using the information in the Configuration Table provided in this
section.

2. Connect the Smart Sensor module to the TCX 866, TCX 867 or to another Infinity controller using the TTS-SD-INFBUF interface.

3. Load and/or create Plain English programs in the controller to control and monitor the module. Information on reading from and
writing to the Smart Sensor is included in the Programming section of this manual.

TCX 866/867 Configuration & Programming

TTS-SD-INFBUF SMART SENSOR BUFFER BOARD NOTICE

If you are using the TTS-SD-INFBUF Smart Sensor Buffer Board, do not use the information provided here. Refer to Appendix A for
configuration information.

Configuration requires the creation of two types of points in your system.

CONFIGURING THE THERMISTOR

The thermistor is configured as any temperature device would be set up. Configure the TCX 866 or TCX 867 Input 3 (Analog Input) to
be of Electrical Type: ACC_DEG_F or ACC_DEG_C. This sets up the input for reading temperature in degrees Fahrenheit or Celsius.

Important: Input 3 MUST be configured as a temperature input, otherwise, any operation of the Smart sensor (temperature or
display) will not work!

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Smart Sensor

Configuring the Keypad/Display

The keypad and display of the Smart Sensor are accessed by a single manual array. You configure their operation by creating a Numeric
point.

The array for the TTS-SD-LCD model is called ‘LCDDisplay ‘(not case sensitive).

The array for the TTS-SD-LED model is called ‘LEDDisplay ‘(not case sensitive).

This point must be set up as a manual array with 8 elements. The purpose of each element is listed below:

TTS-SD-LCD ARRAY ELEMENTS:

LCDDisplay[0] Keypad Data. This element contains a number representing which key is pressed on the keypad.

LCDDisplay[1] Data to be displayed in all formats except Segment.

LCDDisplay[2] Format for display data

LCDDisplay[3] Digit1 data in Segment mode.

LCDDisplay[4} Digit2 data in Segment mode.

LCDDisplay[5] Digit3 data in Segment mode.

LCDDisplay[6] Digit 4 data in Segment mode.

LCDDisplay[7} Control of display messages in all modes.

7

TTS-SD-LED ARRAY ELEMENTS:

LEDDisplay[0] Keypad Data. This element contains a number representing which key is pressed on the keypad.

LEDDisplay[1] Data to be displayed in all formats except Segment.

LEDDisplay[2] Format for display data.

LEDDisplay[3] Digit1 data in Segment mode.

LEDDisplay[4] Digit2 data in Segment mode.

LEDDisplay[5] Not used.

LEDDisplay[6] Not used.

LEDDisplay[7} Control of decimal points in Segment mode.

Once the temperature point and the array are configured you are free to enter values into the array to operate the Smart Sensor. Refer
to the next section for specific programming information.

TTS-SD-INFBUF Smart Sensor Buffer Board Notice

This section applies to a Smart Sensor directly connected to a TCX 866 or TCX 867. If you are using the TTS-SD-INFBUF Smart Sensor
Buffer Board with Infinity controllers that contain EMX ports (e.g., TCX-850, LCX-810, SCX-920), do not use the information provided
here. Refer to Appendix A for programming information.

Once the temperature input point and the 8-element display array have been configured it is a relatively simple task to program the
Smart Sensor for operation.

Reading temperature from the internal thermistor is a straightforward read of the input point.

Key presses on the six-button keypad are captured and placed into an array element automatically by the electronics within the
module.

To visually display a value on the Smart Sensor, place the value into the element of the array and the module automatically extracts this

data and formats it for display.

There are several display “modes” available. Set the display mode before presenting data for display.

The following pages present these operations in more detail.

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