Johnson Controls FEC26 Series, MS-FEC2611-Series, MS-FEC2621-Series, MS-FEC2611-xET Installation Instructions Manual

FEC26 Field Equipment Controllers Installation Instructions

MS-FEC2611-x, MS-FEC2621-x, MS-FEC2611-xET

Part No. 24-10143-144, Rev. L

Issued November 2017

Refer to the QuickLIT website for the most up-to-date version of this document.

Application

The FEC26 controllers are part of the Metasys® system

Field Equipment Controller (FEC) family. These
controllers run pre-engineered and user-programmed
applications and provide the inputs and outputs required
to monitor and control a wide variety of HVAC and other
facility equipment.

The FEC controllers operate on an RS-485 BACnet®

Master-Slave/Token-Passing (MS/TP) Bus as BACnet
Application Specific Controllers (B-ASCs) and integrate

into Johnson Controls®and third-party BACnet systems.

The FEC26 controller is available with or without an
integral LCD and push button user interface.

Important: In Metasys system smoke control

applications, use only the MS-FEC2611-0U
and MS-FEC2621-0U at Metasys Release

8.1 that are UL 864 UUKL/UUKLC 10th
Edition Smoke Control Listed. For Metasys
system smoke control applications, you
must refer to the Metasys System UL 864

UUKL Tenth Edition Smoke Control System
Technical Bulletin (LIT-12012487) for

detailed requirements and procedures for
installing, commissioning, and operating UL
864 UUKL Listed Metasys system devices.
The UL 864 UUKL listing for Smoke Control
Equipment is voided if (1) you do not use
the required software tools at the required
versions; or (2) you do not meet the
requirements or do not follow the
procedures as documented in the Metasys

System UL 864 UUKL Tenth Edition Smoke
Control System Technical Bulletin
(LIT-12012487).

Switchable Communications
Protocols

By default, the Metasys® system FEC Family Controllers

and network sensors communicate using either the
standard BACnet protocol based on the ANSI/ASHRAE
135-2004, or the BACnet/IP protocol.

FEC, VMA16, VMA18, and most IOM field controllers are
BTL-listed as BACnet Application Specific Controllers
(B-ASCs). FAC Field Controllers and the VMA1930 Field
Controller are BTL-listed as BACnet Advanced Application
Controllers (B-AACs). The NS Series Sensors are
BTL-listed as BACnet Smart Sensors (B-SSs).

Release 10.1 and later of the Controller Configuration
Tool (CCT) can be used to switch the Field Bus
communications protocol in supported FEC Family Field
Controllers to be either the standard BACnet MS/TP or
the N2 protocol. All new controllers use BACnet MS/TP
as the default communications protocol. Switchable
communications protocols in the MS/TP models provide
a cost-effective upgrade and modernization path for
customers with existing N2 controllers.

The N2-capable FEC Family Controllers can be used as
functional replacements for legacy N2 controllers. The
N2-capable FEC Family Controllers:

• have the input and output (I/O) quantities and
characteristics of the FEC Family Controllers

• must be programmed with CCT, which has similar,
but not identical programming capabilities as
HVACPro, GX9100, GPL, and other legacy tools

• support SA Bus devices

• support WRZ wireless sensors from the controller
using the WRZ-7860 receiver (most models)

• are available in Buy American versions (most models)

• are listed for UL864 UUKL/UUKLC (some models).

N2 is supported as part of the Metasys® Tenth Edition

listing for Smoke Control System Equipment. For
details, refer to the Metasys System UL 864 10th

Edition UUKL/ORD-C100-13 UUKLC Smoke Control
System Technical Bulletin (LIT-12012487).

The N2-capable controllers:

• do not support Zone Bus (for example, TMZ sensors
and M100 actuators) or XT-Bus (System 91) devices
(for example, XT, XTM, and XP modules)

• do not support a wireless connection to the N2 bus

• do not support NxE passthrough

The BACnet protocol is a standard for ANSI, ASHRAE,
and the International Standards Organization (ISO) for
building controls.

1FEC26 Field Equipment Controllers Installation Instructions

North American Emissions
Compliance

Mounting

Observe these guidelines when mounting a field
controller:

Canada

This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte toutes
les exigences du Règlement sur le matériel brouilleur
du Canada.

United States

This equipment has been tested and found to comply
with the limits for a Class A digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference when this equipment is operated in a
commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area may cause harmful interference, in which
case the users will be required to correct the interference
at their own expense.

• Ensure the mounting surface can support the
controller, DIN rail, and any user-supplied enclosure.

• Mount the controller horizontally on 35 mm DIN rail
whenever possible.

• Mount the controller in the proper mounting position
(see Figure 1).

• Mount the controller on a hard, even surface
whenever possible in wall-mount applications.

• Use shims or washers to mount the controller securely
and evenly on the mounting surface.

• Mount the controller in an area free of corrosive
vapors and observe the Ambient Conditions
requirements (see Table 11).

• Provide for sufficient space around the controller for
cable and wire connections for easy cover removal
and good ventilation through the controller (50 mm
[2 in.] minimum on the top, bottom, and front of the
controller).

• Do not mount the controller on surfaces prone to
vibration, such as duct work.

• Do not mount the controller in areas where
electromagnetic emissions from other devices or
wiring can interfere with controller communication.

Installation

Observe these guidelines when installing a field controller:

• Transport the controller in the original container to
minimize vibration and shock damage.

• Verify that all parts shipped with the controller.

• Do not drop the controller or subject it to physical
shock.

Parts Included

• one field controller with removable terminal blocks
(Power, SA bus, and FC bus are removable)

• one installation instructions sheet

Materials and Special Tools Needed

• three fasteners appropriate for the mounting surface
(M4 screws or #8 screws)

• one 20 cm (8 in.) or longer piece of 35 mm DIN rail
and appropriate hardware for DIN rail mount (only)

• small straight-blade screwdriver for securing wires in
the terminal blocks

Observe these additional guidelines when mounting a
field controller in a panel or enclosure:

• Mount the controller so that the enclosure walls do
not obstruct cover removal or ventilation through the
controller.

• Mount the controller so that the power transformer
and other devices do not radiate excessive heat to
the controller.

• Do not install the controller in an airtight enclosure.

Figure 1: Field Controller Mounting Positions

2FEC26 Field Equipment Controllers Installation Instructions

DIN Rail Mount Applications

Mounting the field controller horizontal on 35 mm DIN rail
is the preferred mounting method.

To mount a controller on 35 mm DIN rail:

1. Securely mount a 20 cm (8 in.) or longer section of
35 mm DIN rail horizontal and centered in the
appropriate location so that the controller mounts in
the horizontal position shown in Figure 1.

2. Pull the two bottom mounting clips outward from the
controller to the extended position.

3. Hang the controller on the DIN rail by the hooks at
the top of the (DIN rail) channel on the back of the
controller(see Figure 2), and position the controller
snugly against the DIN rail.

4. Push the bottom mounting clips inward (up) to secure
the controller on the DIN rail.

To remove the controller from the DIN rail, pull the
bottom mounting clips out to the extended position
and carefully lift the controller off the DIN rail.

Wall Mount Applications

To mount a field controller directly on a wall or other flat
vertical surface:

to the wall or surface in a proper mount position and
mark the hole locations through the mounting clips.

3. Drill holes in the wall or surface at the marked
locations, and insert appropriate wall anchors in the
holes (if necessary).

4. Hold the controller in place, and insert the screws
through the mounting clips and into the holes (or
anchors). Carefully tighten all of the screws.

Important: Do not overtighten the mounting screws.

Overtightening the screws may damage
the mounting clips.

Figure 2: Back of Controller Showing Extended

Mounting Clips, DIN Rail Channel, and Mounting

Dimensions, mm (in.)

1. Pull the two bottom mounting clips outward and
ensure they are locked in the extended position as
shown in Figure 2.

2. Mark the mounting hole locations on the wall using
the dimensions in Figure 2 and one of the mount
positions shown in Figure 1. Or hold the controller up

3FEC26 Field Equipment Controllers Installation Instructions

Table 1: FEC2621 Physical Features

Physical Feature: Description and ReferencesCallout

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Binary Output (BO) Source Power Selection Jumper Pin Blocks, 3 – BO Jumper Pin Blocks. See Table 4 for more
information.

Device Address DIP Switch Block. See Setting the Device Addresses for more information.

Mounting Clip. See Mounting for more information.

Configurable Output (COs) Terminal Blocks. See Table 4 for more information.

Analog Outputs (AOs) Terminal Block. See Table 4 for more information.

24 VAC, Class 2 Supply Power Terminal Block. See Table 6 for more information.

Cover Lift Tab (One of Two). See Removing the Controller Cover for more information.

Display Navigation Buttons. See Setting Up an Integral or Local Display.

Note: Not available on all FEC models.

Liquid Crystal Display (LCD) Display Area

Note: Not available on all FEC models.

Field Controller (FC) Bus Terminal Block. (See FC Bus Terminal Block.)

Sensor Actuator (SA) Bus Terminal Block. (See SA Bus Terminal Block.)

Sensor Actuator (SA) Bus (RJ-12 6-pin Modular Jack). See Sensor Port.

Binary Input (BI) Terminal Block, 2 – Binary Inputs. See Table 4 for more information.

Universal Input (UI) Terminal Blocks, 6 – Universal Inputs. See Table 4 for more information.

LED Status Indicators. See Table 9 for more information.

Field Controller (FC) Bus Port (RJ-12 6-pin Modular Jack). See FC Bus Port for more information.

Binary Output (BO) Terminal Blocks. See Table 4.

Figure 3: FEC2621 Physical Features

4FEC26 Field Equipment Controllers Installation Instructions

Wiring

Risk of Electric Shock: Disconnect the power supply

before making electrical connections to avoid electric
shock.

Mise En Garde: Risque de décharge électrique:

Débrancher l'alimentation avant de réaliser tout
raccordement électrique afin d'éviter tout risque de
décharge électrique.

Risk of Property Damage: Do not apply power to the
system before checking all wiring connections. Short
circuited or improperly connected wires may result in
permanent damage to the equipment.

Mise En Garde: Risque de dégâts matériels: Ne pas
mettre le système sous tension avant d'avoir vérifié tous
les raccords de câblage. Des fils formant un court-circuit
ou connectés de façon incorrecte risquent
d'endommager irrémédiablement l'équipement.

FC Bus Terminal Block

The FC Bus terminal block is a blue, removable,
4-terminal plug that fits into a board-mounted jack.

Wire the removable FC bus terminal block plugs on the
controller, and other controllers in a daisy-chain
configuration using 3-wire twisted, shielded cable as
shown below. See Table 6 for more information.

Figure 4: FC Bus Terminal Block Wiring

Important: Do not exceed the controller electrical

ratings. Exceeding controller electrical
ratings can result in permanent damage to
the controller and void any warranty.

Important: Use copper conductors only. Make all wiring

in accordance with local, national, and
regional regulations.

Important: Electrostatic discharge can damage

controller components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid
damaging the controller.

For detailed information on configuring and wiring an
MS/TP Bus, FC bus, and SA bus, refer to the MS/TP
Communications Bus Technical Bulletin (LIT-12011034).

Terminal Blocks and Bus Ports

See Figure 3 for terminal block and bus port locations on
the controller. Observe the following guidelines when
wiring a controller.

Note: The FC bus Shield (SHLD) terminal is isolated

and can be used to connect (daisy chain) the
shields for FC bus wiring.

SA Bus Terminal Block

The SA Bus terminal block is a brown, removable,
4-terminal plug that fits into a board-mounted jack.

Wire the removable SA Bus terminal block plugs on the
controller and other SA Bus devices in a daisy-chain
configuration using 4-wire twisted, shielded cable as
shown in the following figure. See Table 6 for more
information.

Input and Output Terminal Blocks

All of the fixed input terminal blocks are mounted on the
bottom of the controller and the output terminal blocks
are mounted on the top of the controller. See Table 4 for
more information about I/O terminal functions,
requirements, and ratings.

5FEC26 Field Equipment Controllers Installation Instructions

Figure 5: SA Bus Terminal Block Wiring

Note: The SA PWR terminal supplies 15 VDC. The SA

PWR terminal can be used to connect (daisy
chain) the 15 VDC power leads on the SA bus.

FC Bus Port

The FC bus port on the front of the controller is an RJ-12,
6-position modular jack that provides a connection for
the Wireless Commissioning Converter, or ZFR/ZFR Pro
Wireless Field Bus Router.

Sensor Port

The Sensor (SA Bus) port on the bottom of the controller
() is an RJ-12, 6-position modular jack that provides a
connection for the Wireless Commissioning Converter,
the VAV Balancing Tool, specified network sensors, or
other SA Bus devices with RJ-12 plugs.

When the FEC is configured for N2 communication, the
SA Bus port must be used to download and commission
the controller. A DIS1710 Local Controller Display also
can be connected to the SA Bus port (but only on FEC
models without integral display and push buttons).

The Sensor port is connected internally to the SA bus
terminal block. See Table 6 for more information. The
Sensor Port pin assignment is shown in Figure 6.

Supply Power Terminal Block

The 24 VAC supply power terminal block is a gray,
removable, 3-terminal plug that fits into a board-mounted
jack on the top right of the controller.

Wire the 24 VAC supply power wires from the transformer
to the HOT and COM terminals on the terminal plug as
shown below. The middle terminal on the supply power
terminal block is not used. See Table 6 for more
information about the Supply Terminal Block.

Figure 7: 24 VAC Supply Power Terminal Block Wiring

The FC bus port is connected internally to the FC bus
terminal block. See Comm Bus and Power Supply

Terminal Block Rating and Requirements Table for more

information. The FC bus Port pin assignment is shown
in Figure 6.

Figure 6: Pin Number Assignments for Sensor,

FC Bus, and SA Bus Ports on Controllers

Note: The supply power wire colors may be different on

transformers from other manufacturers. Refer to
the transformer manufacturer’s instructions and
the project installation drawings for wiring details.

6FEC26 Field Equipment Controllers Installation Instructions

Important: Connect 24 VAC supply power to the

controller and all other network devices so
that transformer phasing is uniform across
the network devices. Powering network
devices with uniform 24 VAC supply power
phasing reduces noise, interference, and
ground loop problems. The field controller
does not require an earth ground
connection.

Wireless Network Applications

The controller can also be installed in a wireless
application using a ZFR/ZFR Pro Wireless Field Bus
Router.

Important: Wireless operation is not approved for

smoke control applications. Refer to the

Metasys System UL 864 UUKL Tenth
Edition Smoke Control System Technical
Bulletin (LIT-12012487) for detailed

requirements and procedures for installing,
commissioning, and operating UL 864
UUKL/UUKLC Listed Metasys system
devices.

To configure a controller for use with the ZFR/ZFR Pro
Series Wireless Field Bus system:

1. Wire the input/output terminals and SA bus.

Note: In wireless network applications, do not

connect any wires to the FC bus terminal
block. (Connect the SA/FC terminal block on
an IOM to an SA bus only.)

2. Connect the ZFR/ZFR Pro Wireless Field Bus Router
to the FC bus port (RJ-12 modular jack) on the front
of the controller.

3. Ensure that the controller's device address DIP
switches are set to the correct device address. See

Setting the Device Addresses.

4. Set DIP switch 128 to ON, which enables wireless
operation on the field controller.

For more information on the ZFR Pro Wireless Field
Bus system, refer to the WNC1800/ZFR182x Pro

Series Wireless Field Bus System Product Bulletin
(LIT-12012320).

For more information on the ZFR 1800 Wireless Field
Bus system, refer to the ZFR1800 Series Wireless
Field Bus System Product Bulletin (LIT-12011336).

Termination Details

A set of Johnson Controls® termination diagrams provides details for wiring inputs and outputs to the controllers.

See the figures in this section for the applicable termination diagrams.

Table 2: Termination Details

Type of Field Device

Input/Output

UITemperature Sensor

UIVoltage Input - External

Source

Termination DiagramsType of

7FEC26 Field Equipment Controllers Installation Instructions

Table 2: Termination Details

Type of Field Device

Input/Output

UIVoltage Input - Internal

Source

UIVoltage Input

(Self-Powered)

UICurrent Input - External

Source (Isolated)

Termination DiagramsType of

Source (2-wire)

Source (3 wire)

Source (in Loop)

UICurrent Input - Internal

UICurrent Input - Internal

UICurrent Input - External

8FEC26 Field Equipment Controllers Installation Instructions

Table 2: Termination Details

Type of Field Device

Input/Output

UIFeedback from

EPP-1000

UI or BIDry Contact (Binary

Input)

CO or AO0–10 VDC Output to

Actuator (External
Source)

Termination DiagramsType of

Actuator (Internal
Source)

Actuator

CO or AO0–10 VDC Output to

CO or AO4–20 mA Output to

9FEC26 Field Equipment Controllers Installation Instructions