XPM Expansion Modules

Compatibility

XPM series expansion modules can be connected to the

SA Bus of the following equipment controller device types:

• CG series General Purpose Application Equipment

Controllers

• CV series VAV Box Controllers

• FAC series Advanced Application Field Equipment

Controllers

• FEC series Field Equipment Controllers

• VMA16. VMA18. and VMA19 series VAV Box Controllers

• SNC series Network Control Engines

• NCE series Network Control Engines

Note: XPM series expansion modules may coexist on

the SA Bus with IOM series input/output expansion

modules.

XPM series expansion modules can be connected to the

FC bus of the following network engine types:

• SNE series Network Engines

• SNC series Network Control Engines

• NAE35. NIE39. NAE45. NAE49. NAE55. and NAE59 series

Network Automation and Integration Engines

• NCE25 and NIE29 series Network Control Engines

Note: XPM series modules may coexist on the

FC Bus with IOM series input/output expansion

modules.

Preloaded, selectable applications

The CV series VAV box controller is shipped with a

factory-installed library of the most popular VAV box

control applications. You can make this controller fully

operational by using the MAP to select the appropriate

VAV box application, thereby, saving field technicians’

time by eliminating the provisioning workflow.

Optional integrated feedback potentiometer

Reassures users and field technicians of the VAV box

damper’s actual position and enables them to easily

confirm and troubleshoot VAV controller operations,

confirm actuator is at the desired position and track

damper position.

CV installation

Field mounting the CV series controllers is

straightforward. These controllers require minimal wiring

and are mounted to the VAV box using a single sheet

metal screw and a single set screw to lock the actuator

to the damper shaft. The set screw has a self-locking cup

point end to resist loosening due to vibration.

The actuator coupling is serrated, providing additional

damper shaft grip and minimizing shaft slippage during

operation. The coupling accommodates shafts from 10

mm (3/8 in.) square and up to 13 mm (1/2 in.) diameter

round. A gear release lever allows easy resetting of the

damper to fully open or fully closed.

The housing dimensions of the CV series controllers meet

industry mounting requirements and make the controllers

easy to handle.

The controller device address can be unique for each

controller using the rotary switches that are accessible

through the controller housing.

For more information about installing CV controllers,

refer to CVM03050 VAV Terminal Equipment Controllers

Installation Instructions .

CV series features

In addition to the features listed in Features and benefits,

CV series equipment controllers provide the following

benefits:

An integrated damper actuator and digital Differential

Pressure Transducer (DPT) sensor

Reduces installation time

Fast response actuator

Drives the damper from full open to full closed (90°) in 60

seconds to reduce commissioning time

Preloaded, selectable applications

The CV series VAV box controller is shipped with a

factory-installed library of the most popular VAV box

control applications. You can make this controller fully

operational by using the MAP to select the appropriate

VAV box application, thereby, saving field technicians’

time by eliminating the provisioning workflow.

Optional integrated feedback potentiometer

Reassures users and field technicians of the VAV box

damper’s actual position and enables them to easily

confirm and troubleshoot VAV controller operations,

confirm actuator is at the desired position and track

damper position.

VAV Box Controllers (CV Series)

The CV series equipment controllers are designed

for variable air volume (VAV) box applications. These

controllers are fully programmable, but also feature a set

of preloaded applications allowing these controllers to be

made fully operational by selecting the appropriate VAV

box application using the MAP.

CV series controllers feature an integral damper actuator,

and a digital Differential Pressure Transducer (DPT)

sensor. The CVM03050-0P model features an integral

potentiometer to sense actual VAV box damper position.

These controllers include an integral real-time clock,

which enables the controllers to monitor and control

schedules, calendars, and trends, and operate for

extended periods of time as stand-alone controllers

when offline from the Metasys system network. These

controllers also connect easily to the wired and wireless

network sensors for zone and discharge air temperature

sensing.

General Purpose Application Controllers

(CG Series)

The CG series general purpose application controllers

are well-suited for controlling a wide variety of facility

and HVAC equipment, including fan coils, air handling

units, packaged HVAC equipment, and central plant

equipment. CG series controllers run pre-engineered and

user-programmed applications. There are two models

of CG series controllers available with two different sets

of onboard input/output interfaces (Table 1). You can

expand their I/O interfaces by connecting XPM or IOM

series I/O expansion modules.

CG series equipment controllers include an integral real

time clock, which enables the controllers to monitor and

control schedules, calendars, and trends, and operate for

extended periods of time as standalone controllers when

offline from the Metasys system network.

CG, CV family devices feature removable, color-coded,

keyed, and labeled terminal block plugs for the input

and output, supply power, and communications bus

terminations.

CG, CV family devices feature rotary switches that allow

you to set a valid and unique device address for each

device on the bus. A blank space is included on the cover

for recording the device address.

Integral mounting clips and a DIN rail track on the back

plate of the CGM controllers and XPM devices allow you

to easily mount the device either on a horizontal section

of 35 mm DIN rail, or screw mount on a flat surface with

three integral mounting clips on the device.

An integral EOL switch on MS/TP devices allows you to

enable the device as a bus terminating device, which

when properly configured, reduces reflected noise on the

bus and improves bus communication.

Hardware and installation

Metasys equipment controllers and expansion modules

are encased in a durable plastic housing. The plastic

housing may eliminate the need for a separate enclosure

for plenum-rated construction. Check specific controller

documentation and regional, national, and local code

requirements for appropriate applications.

Metasys CG, CV family devices feature bright, color-coded

LEDs, visible on the controller cover, that indicate the

supply power, communications bus, and EOL switch

status, as well as a variety of fault conditions to aid

troubleshooting the controller and bus.

The equipment controllers ship with a default state that

can assist in validating the wiring of the input and output

terminals prior to download of an application file. When

the controller is powered on in this state, the Fault LED

will flash in a pattern of two quick blinks and then a long

pause.

Communications protocols

The CGM and CVM controllers can communicate using

BACnet MS/TP, N2. or wireless Zigbee. The controllers

auto-detect the protocol that is connected, which enables

the same controller to support multiple communication

protocols without the need to purchase a special model

per protocol, and without extra manual setup.

The XPM expansion modules can communicate using

BACnet MS/TP, or wireless Zigbee® using a ZFR/ZFR Pro

Wireless Field Bus Router (on the FC Bus only). By default,

the XPM expansion modules communicate using the

BACnet MS/TP protocol.

The BACnet MS/TP protocol is a standard for ANSI,

ASHRAE, and the International Standards Organization

(ISO) for building controls.

The CGM and CVM controllers can be used as functional

replacements for legacy N2 controllers. The N2-capable

MS/TP equipment controller models provide a cost

effective upgrade and modernization path for customers

with existing N2 controllers.

The CGM and CVM controllers can also be installed in a

wireless application using a ZFR/ZFR ProWireless Field Bus

Router, see Related products.

Network Diagram with Equipment Controllers

Integration to the Metasys system

supervisory devices

The CG and CV series equipment controllers are designed

to integrate seamlessly into the Metasys system by

connecting to, communicating with, and being supervised

by Metasys network engines (including SNE, SNC, NAE,

NIE, and NCE series network engines). 

This seamless integration of equipment controllers with

Metasys network engines delivers coordinated, system-wide

control and enables building operators to monitor and

adjust equipment controllers from the Metasys system UI.

In addition, service personnel can view equipment

controller information locally through an optional local

controller display (MS-DIS1710-0) available for equipment

controllers, or through the optional Mobile Access Portal

(MAP) Gateway.

BACnet Testing Laboratories (BTL) listed and certified

Ensures openness and interoperability with other BTL

listed devices. BTL is a third-party agency, which validates

that BAS vendor products meet the BACnet industry

standard protocol.

BACnet automatic discovery

Supports easy controller integration into a Metasys BAS.

Wireless ZFR and ZFR Pro support

Provides a wireless alternative to hard-wired MS/TP

networking, offering application flexibility and mobility

with minimal disruption to building occupants, and also

simplifies and speeds up replacements.

Integral real-time clock

An integral real-time clock, which enables the controllers

to monitor and control schedules, calendars, and trends,

and operate for extended periods of time as stand-alone

controllers when offline from the Metasys system network.

Pluggable screw terminal blocks

Pluggable input/output wiring terminal blocks provide

electrical installers and field technicians the ability to

quickly and easily install and service a controller without

the need to disconnect and reconnect the input/output

wiring.