TRANE Tracer MP.501 Controller Module User Manual
- June 9, 2024
- Trane
Table of Contents
TRANE Tracer MP.501 Controller Module User Manual
Introduction
The Tracer MP.501 controller is a configurable, multi-purpose controller used to provide direct-digital control for heating, ventilation, and air conditioning (HVAC) equipment.
The controller can operate as a standalone device or as part of a building automation system (BAS). Communication between the controller and a BAS occurs via a LonTalk Comm5 communication link.
The Tracer MP.501 provides a single control loop with the following output types: 2-stage, tri-state modulating, and 0–10 Vdc analog. The controller can be configured in two possible modes: Space Comfort Controller (SCC) or generic.
In SCC mode, the Tracer MP.501 conforms to the LonMark SCC profile and controls space temperature to an active setpoint.
SCC mode supports the following applications:
- Heating control loop
- Cooling control loop
- Two-pipe heat/cool automatic
changeover using a communicated water loop temperature
In generic mode, the Tracer MP.501 provides control flexibility in a variety of applications that do not necessarily follow a LonMark profile. The control loop accepts inputs of the following types: temperature, pressure, flow, percent, or parts per million (ppm).
Generic mode supports many applications including:
- Fan speed control based on duct static pressure
- Pump speed control based on water differential pressure or flow
- Humidifier control based on space or duct relative humidity
Inputs and outputs
Tracer MP.501 inputs and outputs include:
-
Analog inputs:
SCC mode: zone temperature, zone temperature setpoint Generic mode: 4–20 mA input -
Binary inputs :
SCC mode: occupancy Generic mode: enable/disable -
Outputs : 2-stage, tri-state modulation, or 0–10 Vdc analog
SCC mode: fan on/off Generic mode: interlock device on/off (follows the enable/disable binary input) -
Generic point for use with a Tracer Summit building automation system: binary input (shared with occupancy/ enable)
Generic inputs pass information to the building automation system. They do not directly affect the operation of the Tracer MP.501 ou
Features
Easy installation
The Tracer MP.501 is suitable for indoor mounting in a variety of locations.
Clearly labeled screw terminals ensure that wires are connected quickly and
accurately. A compact enclosure design simplifies installation in minimal
space.
Flexible control
Using a single proportional, integral, and derivative (PID) control loop, the
Tracer MP.501 controller controls an output based on a measured input value
and a specified setpoint. The output can be configured as a 2-stage, a tri-
state modulating, or a 0–10 Vdc analog signal to control to the active
setpoint.
Adjustable PID loop
The Tracer MP.501 provides a single control loop with adjustable PID control
parameters, which allows control to be customized for a variety of
applications.
Interoperability
In SCC mode, the Tracer MP.501 conforms to the LonMark SCC profile. In generic
mode, the controller does not conform to a specific LonMark profile, but
supports standard network variable types (SNVTs). Both modes communicate via
the LonTalk protocol. This allows the Tracer MP.501 to be used with a Trane
Tracer Summit system as well as other building automation systems that support
LonTalk.
Occupied and unoccupied
operation
Available in SCC mode only, the occupancy input works with a motion
(occupancy) sensor or a time clock. A communicated value from a building
automation system can also be used. The input allows the controller to use
unoccupied (setback) temperature setpoints.
Control interlock
Available in generic mode only, the interlock input works with a time clock or
other binary switching device to enable or disable the controller process.
When disabled, the control output is driven to a configurable (0–100%) default
condition.
Continuous or cycling fan operation
Available in SCC mode only, the fan can be configured to run continuously or
cycle on and off automatically during occupied operation. The fan will always
cycle in unoccupied mode.
Timed override
Available in SCC mode only, the timed override function for after-hours
operation allows users to request unit operation by the touch of a button on
the zone temperature sensor. The override timer is configurable with a range
of 0–240 minutes. Additionally, users can press the Cancel button at any time
to place the unit back into unoccupied mode.
Manual output test
Pressing the Test button on the controller exercises all of the outputs in
sequence. This feature is an invaluable troubleshooting tool that does not
require a PC-based service tool.
Peer-to-peer communication
The Tracer MP.501 can share data with other LonTalk-based controllers. Several
controllers can be bound as peers to share data such as setpoint, zone
temperature, and heating/cooling mode. Space temperature control applications
having more than one unit serving a single large space can benefit from this
feature, which prevents multiple units from simultaneously heating and
cooling.
Dimensions
The Tracer MP.501 dimensions are shown in Figure 1.
Figure 1: Tracer MP.501 dimensions
Network architecture
The Tracer MP.501 can operate on a Tracer Summit building automation system (see Figure 2), on a peer-to-peer network (see Figure 3), or as a standalone device.
The Tracer MP.501 can be configured using the Rover service tool for Tracer controllers or any other PC-based service tool compliant with the
EIA/CEA-860 standard. This tool can be connected to a communication jack on a zone temperature sensor or at any accessible location on the LonTalk Comm5 communication link.
Figure 2 : Tracer MP.501 controllers as part of a building automation
system
Figure 3: Tracer MP.501 controllers on a peer-to-peer network
Wiring diagrams
Figure 4 shows a general wiring diagram for the Tracer MP.501 controller
in SCC mode.
Figure 5 shows a general wiring diagram for the Tracer MP.501 controller in generic mode.
Figure 5: Tracer MP.501 controller wiring diagram (generic mode)
Specifications
Power
Supply: 21–27 Vac (24 Vac nominal) at 50/60 Hz Consumption: 10 VA (70 VA at
maximum utilization)
Dimensions
6 7/8 in. L × 5 3/8 in. W × 2 in. H (175 mm × 137 mm × 51 mm)
Operating environment
Temperature: 32 to 122°F (0 to 50°C) Relative humidity: 10–90% noncondensing
Storage environment
Temperature: -4 to 160°F (-20 to 70°C) Relative humidity: 10–90% noncondensing
Agency listings/compliance
CE—Immunity: EN 50082-1:1997 CE—Emissions: EN 50081-1:1992 (CISPR 11) Class B
EN 61000-3-2, EN 61000-3-3
UL and C-UL listed: Energy management system
UL 94-5V (UL flammability rating for plenum use) FCC Part 15, Class A
| Literature Order Number | BAS-PRC008-EN |
|---|---|
| File Number | PL-ES-BAS-000-PRC008-0601 |
| Supersedes | New |
| Stocking Location | La Crosse |
The Trane Company
An American Standard Company www.trane.com
For more information contact
your local district office or
e-mail us at comfort@trane.com
Since The Trane Company has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice.
References
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