Installation and
Operation
Tracer MP503
Input/Output Module
CNT-SVX09B-EN
April 2005
CNT-SVX09B-EN
Tracer MP503 Input/Output Module Installation and Operation
This guide and the information in it are the property of American Standard Inc. and may not be used or reproduced in whole or in part,
without the written permission of American Standard Inc. Trane, a business of American Standard, Inc., has a policy of continuous
product and product data improvement and reserves the right to change design and specification without notice.
Although Trane has tested the hardware and software described in this guide, no guarantee is offered that the hardware and software
are error free.
Trane reserves the right to revise this publication at any time and to make changes to its content without obligation to notify any person of such revision or change.
Trane may have patents or patent applications covering items in this publication. By providing this document, Trane does not imply
giving license to these patents.
The following are trademarks or registered trademarks of American Standard Inc.: Trane, Tracer, Rover.
™
The following are trademarks or regist er ed trade m ar ks of the i r re sp ec tive companies or organ ization s : BACnet from
™
Printed in the U.S.A.
© 2005 American Standard Inc. All rights reserved
ASHRAE; Neuron, LonMark, LonTalk, and LonWorks from Echelon Corporation; National Electrical Code form the National
Fire Proctection Association, Inc.
CNT-SVX09B-EN
NOTICE:
Warnings and Cautions appear at appropriate sections throughout this manual. Read these carefully:
WARNING
Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
CAUTION
Indicates a situation that may result in equipment damage or property damage.
The following format and symbol conventions appear at appropriate sections throughout this manual:
IMPORTANT
Alerts installer, servicer, or operator to potential actions that could cause the product or system to
operate improperly but will not likely result in potential for damage.
Note:
A note may be used to make the reader aware of useful information, to clarify a point, or to describe
options or alte rnatives.
◆ This symbol precedes a procedure that consists of only a single step.
CNT-SVX09B-EN
Contents
Chapter 1 Overview and specifications . . . . . . . . . . . . . . . . . . 1
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Storage environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Agency listing/compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Additional components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Input devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Output devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2 General wiring information. . . . . . . . . . . . . . . . . . . 5
Input/output terminal wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
AC-power wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Communication-link wiring and addressing . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3 Mounting the module . . . . . . . . . . . . . . . . . . . . . . . 9
Location recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating environment requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 4 Applications of the Tracer MP503 . . . . . . . . . . . . . 11
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Binary inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermistor inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
0–20 mA inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
0–10 Vdc inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wiring requirements and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CNT-SVX09B-EN i
Contents
Chapter 5 Network variable bindings . . . . . . . . . . . . . . . . . . 15
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Network variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Binding network variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Tracer MP503 bindings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Receiving data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Sending data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Examples of network variable bindings . . . . . . . . . . . . . . . . . . . . . . . . . 19
Example 1: Display sensor readings from a Tracer MP503
on a Tracer MP581 operator display . . . . . . . . . . . . . . . . . . . . . . . . 19
Example 2: Display sensor readings from a Tracer MP503
on two different Tracer MP581 operator displays . . . . . . . . . . . . . 21
Example 3: Control a binary output on the Tracer MP503
from a Tracer MP581 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Example 4: Use a sensor reading on a Tracer MP503
to control a pump VFD on a Tracer MP581 . . . . . . . . . . . . . . . . . . 23
Chapter 6 Status indicators for operation and
communication . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Tracer MP503 circuit board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Service Pin button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Interpreting LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Service LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LonTalk LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Binary output LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Chapter 7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Initial troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Binary output (relay output) troubleshooting. . . . . . . . . . . . . . . . . . . . . 33
Universal input troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
ii CNT-SVX09B-EN
Chapter 1
Overview and specifications
This guide provides installation and configuration information for the
Tracer MP503 input/output (I/O) module, as well as a description of its
operations. The overview includes a product description, spe cifications,
and descriptions of additional components needed in some Tracer MP503
applications.
Product description
The Tracer MP503 I/O module is a field-installed device used to monitor
inputs and control binary outputs. The module has four universal inputs
that can be configured as binary, thermistor, 0–20 mA, or 0–10 Vdc, as
well as four binary outputs.
Storage environment
If a Tracer MP503 I/O module is to be stored for a substantial amount of
time, store it in an indoor environment that meets the following
requirements:
• Temperature: –40° to 185°F (–40° to 85°C)
• Relative humidity: 5–95% , no ncondensing
Operating environment
Operate a Tracer MP503 I/O module in an environment that meets the
following requirements:
• Temperature: –40°F to 158°F (–40°C to 70°C)
• Relative humidity: 5–95% , no n-condensing
Dimensions
Plastic-cover model dimensions
For complete dimensional drawing, see .
• Height: 5.375 in. (137 mm)
• Width: 6.875 in. (175 mm)
• Depth: 2 in. (51 mm)
CNT-SVX09B-EN 1
Chapter 1 Overview and specifications
Metal-cover model dimensions
For complete dimensional drawing, see .
• Height: 9.0 in (25 mm)
• Width: 10.37in. (263 mm)
• Depth: 2.25 in. (58 mm)
Clearances
For wi ring, vent ilation, and maintenance , provide the following minimum
clearances for the module, :
Plastic-cover model
(see Figure 1 on page 3)
• Front: 4.0 in. (102 mm)
• Each side: 1.0 in. (25 mm)
• Top and bottom: 4.0 in. (102 mm)
Metal-cover model
(see Figure 2 on page 3)
• Front: 24.0 in. (610 mm)
• Each side: 2.0 in. (51 mm)
• Top and bottom: 1.0 in. (25 mm)
Power
The transformer must meet the following minimum requirements for the
controller and its output devices:
• 19–30 Vac (24 Vac nominal)
• 50/60 Hz
• 9 VA and 12 VA maximum per binary output utilized
Operating environment
Operate a Tracer ZN517 unitary controller in an indoor environment that
meets the following requirements:
• Temperature: From –40°F to 160°F (–40°C to 70°C)
• Relative humidity: From 5–90%, noncondensing
2 CNT-SVX09B-EN
Figure 1. MP503 plastic-cover model dimensions and clearances
1 in.
(25 mm)
Operating environment
4 in.
(102 mm)
5.625 in.
(143 mm)
Clearances
Dimensions
(160 mm)
5.375 in. (137 mm)
1 in.
(25 mm)
(102 mm)
6.31 in.
Figure 2. MP503 metal-cover model dimensions and clearances
1 in.
(25 mm)
1.875 in.
(48 mm)
4 in.
4 in.
(102 mm)
6.5 in.
(165 mm)
6.875 in.
(175 mm)
2 in. (51 mm)
9 in.
(229 mm)
2 in.
(51 mm)
24 in.
(610 mm)
Clearances
Dimensions
CNT-SVX09B-EN 3
10.37 in.
(263 mm)
width with cover
1 in.
(25 mm)
(178 mm)
2 in.
(51 mm)
1 in.
(25 mm)
2.25 in.
(58 mm)
7 in.
0.28 in.
(7 mm)
9 in.
(229 mm)
10.25 in.
(260 mm)
width without cover
Chapter 1 Overview and specifications
Storage environment
If you are storing a Tracer ZN517 unitary controller for a substantial
amount of time, store it in an indoor environment that meets the
following requirements:
• Temperature: From –40° to 185°F (–40° to 85°C)
• Relative humidity: From 5–95%, noncondensing
Agency listing/compliance
CE—Immunity:
CE—Emissions:
EMC Directive 89/336/EEC
EN 50090-2-2:1996
EN 50082-1:1997
EN 50082-2:1995
EN 61326-1:1997
EN 50090-2-2:1996 (CISPR 22) Class B
EN 50081-1:1992 (CISPR 22) Class B
EN 55022:1998 (CISPR 22) Class B
EN 61326-1:1997 (CISPR 11) Class B
UL and C-UL listed:
Energy Management Equipment—PAZX (UL 916)
UL 94-5V (UL flammability rating for plenum use)
FCC Part 15, Subpart B, Class B
4 CNT-SVX09B-EN
Chapter 2
General wiring information
This chapter provides specifications and general information about wiring the Tracer MP503 I/O module. The module requires wiring for:
• Input/output terminals
• AC power to the module
• Communication-link wiring, if the module is to communicate with a
building automation system (BAS) or other LonTalk devices
Input/output terminal wiring
All input/output terminal wiring for the Tracer MP503 I/O module must
meet the following requirements:
• All wiring must comply with the National Electrical Code and local
codes.
• Use only 18 AWG twi sted-pair wire with stranded, tinned-copper con-
ductors. (Shielded wire is recommended.)
• Binary output wiring must not exceed 1000 ft (300 m).
• Binary input and 4–20 mA input wiring must not exceed 1000 ft
(300 m).
• Thermistor input and 0–10 Vdc input wiring must not exceed 300 ft
(100 m).
• Do not run input/output wires in the same wire bundle with any ac-
power wires.
For detailed wiring information and diagrams, see Chapter 4, “Applications of the Tracer MP503.”
CNT-SVX09B-EN 5
Chapter 2 General wiring information
AC-power wiring
WARNING
HAZARDOUS VOLTAGE!
Disconnect all electric power including remote disconnects before servicing. Follow proper lockout/tagout procedures to insure the power
can not be inadvertently energized during installation or servicing. Failure to disconnect power could result in death or serious injury.
WARNING
Hazardous voltage!
Make sure that the 24 Vac transformer is properly grounded. Failure to
do so could result in death or serious injury and/or damage to equipment.
CAUTION
Complete input/output wiring before applying power to the Tracer
MP503 I/O module. Failure to do so may cause damage to the device or
power transformer due to inadvertent connections to power circuits.
CAUTION
To prevent device damage, do not share 24 Vac between devices.
The recommended wire for ac power is 16 AW G (1.3 mm
wiring must comply with National Electrical Code and local codes.
The ac-power connections are in t he t op le ft corner of the T ra cer MP 503 I/
O module (see Figure 3 on page 7).
2
)copper wire. All
6 CNT-SVX09B-EN
AC-power wiring
Figure 3. Connecting ac-power wires to the module
24 Vac
transformer
N
Line
voltage
H
Use a UL-listed Class 2 power transformer supplying a nominal 24 Vac
(20–30 Vac). The transformer must be sized to provide adequate power to
the Tracer MP503 I/O module (10 VA) and output devices, including
relays, t o a maximum of 12 VA per output utilized. The Tracer MP503
may be powered by an existing transformer integral to the controlled
equipment, provided the transformer has adequate power available and
proper grounding is observed.
CNT-SVX09B-EN 7
Chapter 2 General wiring information
Communication-link wiring and
addressing
The Tracer MP503 I/O module communicates with the BAS and with
other devices through a LonTalk communication link.
IMPORTANT
For important instructions on network wiring, refer to the Tracer Sum-
mit Hardware and Software Installation guide (BMTX-SVN01A-EN).
Wiring for the communication link must meet the following requirements:
• All wiring must comply with the National Electrical Code and local
• 22 AWG Level 4 unshielded communications wire recommended for
• Termination resistors are required for wiring LonTalk devices com-
codes.
most Comm5 installations.
municating on a network. For important instructions on using termination resistors for LonTalk applications, refer to the Tracer Summit
Hardware and Software Installation guide (BMTX-SVN01A-EN).
Each Tracer MP503 I/O module has a unique 12-c haracter alphanumeric
device address for communicating on a BAS network. This address,
referred to as a Neuron ID , is assigned in the factory before the product is
shipped. Each device can be identified by viewing its unique Neuron ID,
which is on a printed label attached to the circuit board of the device.
Additional adhesive-b ack ed, pe el -o ff Neuron I D l abel s are t ethered to th e
device for placing on mechanical prints or unit location worksheets. The
Neuron ID will appear when co mmuni cati on is est abl ish ed wi th a se rvice
tool (such as the Rover service tool) or a BAS. An example Neuron ID is
00-01-64-1C-2B-00.
8 CNT-SVX09B-EN
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