Johnson Controls FAC2611-0U User manual

FAC2611-0U Advanced Application Field Equipment
Controller Installation Instructions
MS-FAC2611-0U
Part No. 24-10143-01620, Rev. —
Software Release 8.1
Issued March 2018
Application
The FAC2611 Advanced Application Field Equipment
Controller (FAC) is part of the Metasys®system Field
Equipment Controller family. The FAC26 Series
controllers run pre-engineered and user-programmed
applications and provide the inputs and outputs required
to monitor and control a wide variety of HVAC equipment.
FAC26 field controllers operate on an RS-485 BACnet®
MS/TP Bus as BACnet Advanced Application Controllers
(B-AACs) and integrate into Johnson Controls®and
third-party BACnet systems.
FAC26 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 system network.
Important: The MS-FAC2611-0U model is used in
Metasys Release 8.1 smoke control
applications and is UL 864 UUKL/UUKLC
10th Edition Smoke Control Listed. You
must refer to the Metasys®System UL 864
10th Edition UUKL/ORD-C100-13 UUKLC
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. The UL 864 UUKL/UUKLC 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 10th Edition
UUKL/ORD-C100-13 UUKLC Smoke
Control System Technical Bulletin
(LIT-12012487).
Switchable Communications
Protocols
The Family Controllers and network sensors communicate
using the standard BACnet protocol, based on the
ANSI/ASHRAE 135-2004. The BACnet protocol is a
standard for ANSI, ASHRAE, and the International
Standards Organization (ISO) for building controls.
Most FEC, VMA16, VMA18,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).
You can use Release 10.3 and Release Module (RM)
10.2 of the Controller Configuration Tool (CCT) to switch
the Field Bus communications protocol in supported FEC,
FAC and VMA controllers to be either the standard
BACnet MSTP or the N2 protocol. All new controllers use
BACnet MSTP as the default communications protocol.
Switchable communications protocols in the MSTP
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
•are available in Buy American versions (most models)
• are listed for UL864 UUKL/UUKLC (some models).
N2 is supported as part of the Metasys®10th Edition
listing for Smoke Control System Equipment.
1FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

The N2-capable FEC family 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
North American Emissions
Compliance
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.
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, 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
Mounting
Observe these guidelines when mounting a field
controller:
• 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
(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 in Table 10.
• 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.
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.
2FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Figure 1: Field Controller Mounting Positions
DIN Rail Mount Applications
Mounting the field controller horizontal on 35 mm DIN rail
is the preferred mounting method.
To mount a field 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 desired
space 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 (Figure 2).
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 (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:
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
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.)
3FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Figure 3: FAC2611 Physical Features
Table 1: FAC2611 Physical Features
Physical Feature: Description and ReferencesCallout
Binary Output (BO) Source Power Selection Jumpers: Position jumpers to select internal or external 24 VAC
supply power for Binary Outputs. (see Binary Output (BO) Source Power Selection Jumpers)
1
Device Address DIP Switch Block (see Setting the Device Addresses)
2
Mounting Clips (see Mounting)
3
Configurable Outputs (CO) Terminal Block: Can be defined as Voltage Analog Output (0-10 VDC) or Binary Output
(24 VAC Triac). (see Table 3)
4
Analog Output (AO) Terminal Block: Can be defined as Voltage Analog Output (0-10 VDC) Current Analog Output
(4-20 mA). (see Table 3)
5
24 VAC, Class 2 Supply Power Terminal Block (see Supply Power Terminal Block)
6
Cover Lift Tab (see Removing the Controller Cover )
7
Field Controller (FC) Bus Terminal Block (see FC Bus Terminal Block)
8
Sensor Actuator (SA) Bus Terminal Block (see SA Bus Terminal Block)
9
Sensor Port: (SA Bus) RJ-12 6-Pin Modular Jack (see Sensor Port)
10
Binary Input (BI) Terminal Block: Dry Contact Maintained or Pulse Counter/Accumulator Mode (see Table 3)
11
Universal Inputs (UI) Terminal Block: Can be defined as Voltage Analog Input (0-10 VDC), Current Analog Input
(4-20 mA), Resistive Analog Inputs (0-600k ohm), or Dry Contact Binary Input. (see Table 3)
12
End-of-Line (EOL) Switch, located under the cover. (see Setting the End-of-Line (EOL) Switch)
13
LED Status Indicators (see Table 8)
14
FC Bus Port (RJ-12 6-pin Modular Jack) (see FC Bus Port)
15
Binary Outputs (BO) Terminal Block: 24 VAC Triac (see Table 3)
16
4FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Wiring
Observe the following guidelines when wiring a controller:
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.
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).
For detailed information on wiring an N2 network, refer
to the N2 Communications Bus Technical Bulletin
(LIT-636018).
FAC Terminal Blocks and Bus Ports
See Figure 3 for terminal block and bus port locations on
the FAC2611 controller. Observe the following guidelines
when wiring a controller.
Input and Output Terminal Blocks
On most field controller models, 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 3 for more
information about I/O terminal functions, requirements,
and ratings.
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 in Figure 4. See Comm Bus and Power Supply
Terminal Block Rating and Requirements Table for more
information.
Figure 4: FC Bus Terminal Block Wiring
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 Figure 5. See Comm Bus and Power Supply
Terminal Block Rating and Requirements Table for more
information.
5FAC2611-0U Advanced Application Field Equipment Controller 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 Bluetooth®Commissioning Converter, or ZFR/ZFR
Pro Wireless Field Bus Router.
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.
Note: When the FAC is configured for N2 network
communication, the FC bus port is not used.
Figure 6: Pin Number Assignments for Sensor, SA
Bus, and FC Bus Ports on Field Controllers
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 VAV Balancing Tool, specified network
sensors, or other SA Bus devices with RJ-12 plugs.
The Sensor port is connected internally to the SA bus
terminal block. See Comm Bus and Power Supply
Terminal Block Rating and Requirements Table 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 in Figure 7. The middle terminal on the supply
power terminal block is not used. See Comm Bus and
Power Supply Terminal Block Rating and Requirements
Table for more information about the Supply Terminal
Block.
Figure 7: 24 VAC Supply Power Terminal Block Wiring
Important: Connect 24 VAC supply power to the field
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.
6FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Wireless Network Applications Important: Wireless operation is not approved for
smoke control applications. Refer to the
Metasys®System UL 864 10th Edition
UUKL/ORD-C100-13 UUKLC 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.
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
Termination DiagramsType of
Input/Output
Type of Field
Device
UITemperature
Sensor
UIVoltage Input -
External Source
UIVoltage Input -
Internal Source
7FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 2: Termination Details
Termination DiagramsType of
Input/Output
Type of Field
Device
UIVoltage Input
(Self-Powered)
UICurrent Input -
External Source
(Isolated)
UICurrent Input -
Internal Source
(2-wire)
UICurrent Input -
Internal Source
(3 wire)
UICurrent Input -
External Source
(in Loop)
8FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 2: Termination Details
Termination DiagramsType of
Input/Output
Type of Field
Device
UIFeedback from
EPP-1000
UI or BIDry Contact
(Binary Input)
AO0–10 VDC Output
to Actuator
(External Source)
AO0–10 VDC Output
to Actuator
(Internal Source)
AOCurrent Output
9FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 2: Termination Details
Termination DiagramsType of
Input/Output
Type of Field
Device
AO24 VAC Triac
Output (Switch
Low, External
Source)
AOAnalog Output
(Current)
AO4–20 mA Output
to Actuator
AO4–20 mA Output
to Actuator
10FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 2: Termination Details
Termination DiagramsType of
Input/Output
Type of Field
Device
BOIncremental
Control to
Actuator (Switch
Low, Externally
Sourced)
(Triac Jumpers
Where
Applicable)
BO24 VAC Binary
Output (Switch
Low, Externally
Sourced)
(Triac Jumpers
Where
Applicable)
BO24 VAC Binary
Output (Switch
High, Externally
Sourced)
(Triac Jumpers
Where
Applicable)
BOIncremental
Control to
Actuator (Switch
High, Externally
Sourced)
(Triac Jumpers
Where
Applicable)
11FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 2: Termination Details
Termination DiagramsType of
Input/Output
Type of Field
Device
Note: The bottom jack (J2) on the TE-700 and TE-6x00 Series Sensors is not usable as a
zone bus or an SAB connection.
SA BusNetwork Stat with
Phone Jack
(Fixed Address =
199)
SA BusNetwork Stat with
Terminals
Addressable
SA BusNetwork Stat with
Terminals (Fixed
Address = 199)
12FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Terminal Wiring Guidelines,
Functions, Ratings, and
Requirements
Input and Output Wiring Guidelines
Table 3 provides information and guidelines about the
functions, ratings, and requirements for the controller
input and output terminals; and references guidelines for
determining proper wire sizes and cable lengths.
In addition to the wiring guidelines in Table 3, observe
these guidelines when wiring controller inputs and
outputs:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• All input and output cables, regardless of wire size or
number of wires, should consist of stranded, insulated,
and twisted copper wires.
• Shielded cable is not required for input or output
cables.
• Shielded cable is recommended for input and output
cables that are exposed to high electromagnetic or
radio frequency noise.
• Inputs/outputs with cables less than 30 m (100 ft)
typically do not require an offset in the software setup.
Cable runs over 30 m (100 ft) may require an offset
in the input/output software setup.
Table 3: FAC2611 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
Same as (Universal) INn
Note: Use 3-wire cable for
devices that source
power from the +15V
terminal.
15 VDC Power Source for active (3-wire) input devices
connected to the Universal INnterminals.
Provides 100 mA total current
+15 VUNIVERSAL
(Inputs)
See Guideline Ain Table 4.
Analog Input - Voltage Mode (0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohm Pull-down
INn
See Guideline Bin Table 4.
Analog Input - Current Mode (4–20 mA)
Internal 100 ohm load impedance
Note: Current loop jumpers are fail-safe to maintain a
closed 4 to 20 mA current loop, even when the
power to the controller is interrupted or off. See UI
Current Loop Jumpers.
See Guideline Ain Table 4.
Analog Input - Resistive Mode (0–600k ohm)
Internal 12 V. 15k ohm pull up
Qualified Sensors: 0-2k ohm potentiometer, RTD (1k Nickel
[Johnson Controls®sensor], 1k Platinum, and A99B Silicon
Temperature Sensor) Negative Temperature Coefficient
(NTC) Sensor
See Guideline Ain Table 4.
Binary Input - Dry Contact Maintained Mode
1 second minimum pulse width
Internal 12 V. 15k ohm pull up
Same as (Universal) INn
Universal Input Common for all Universal Input terminals
Note: All Universal ICOMnterminals share a common,
which is isolated from all other commons.
ICOMn
13FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 3: FAC2611 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
See Guideline Ain Table 4.
Binary Input - Dry Contact Maintained Mode
0.01 second minimum pulse width
Internal 18 V. 3k ohm pull up
INn
BINARY
(Inputs)
Binary Input - Pulse Counter/Accumulator Mode
0.01 second minimum pulse width
(50 Hz at 50% duty cycle)
Internal 18 V. 3k ohm pull up
Binary Input Common for all Binary Input (IN) terminals
Note: All Binary ICOMnterminals share a common, which
is isolated from all other commons, except the
Configurable Output (CO) common (OCOMn) when
the CO is defined as an Analog Output.
ICOMn
See Guideline Cin Table 4.
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohm or more.
Note: The Analog Output (AO) operates in the Voltage
Mode when connected to devices with impedances
greater than 1,000 ohm. Devices that drop below
1,000 ohm may not operate as intended for Voltage
Mode applications.
OUTn
ANALOG
(Outputs)
Analog Output - Current Mode (4–20 mA)
Requires and external load between 0 and 300 ohm.
Note: The Analog Output (AO) operates in the Current
Mode when connected to devices with impedances
less than 300 ohm. Devices with impedances
greater than 300 may not operate as intended for
Current Mode applications.
Analog Output Signal Common for all Analog OUT
terminals.
Note: All Analog Output Common terminals (OCOMn)
share a common, which is isolated from all other
commons.
OCOMn
14FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 3: FAC2611 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
See Guideline Cin Table 4.
Binary Output - 24 VAC Triac (External Power Source)
Connects OUTnto OCOMnwhen activated.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
Maximum 6 cycles/hour with M9220BGx-3
40 mA minimum load current
OUTn
BINARY
(Output)
Power Selection
Jumper positioned to
External (EXT) power.
Binary Output Common (for OUTnterminal)
Note: Each Binary Output Common terminal (OCOMn)
is isolated from all other commons, including other
Binary Output Common terminals.
OCOMn
See Guideline Cin Table 4.
Binary Output - 24 VAC Triac (Internal Power Source)
Sources internal 24VAC power (24~ HOT).
OUTn
BINARY
(Output)
Power Selection
Jumper positioned to
Internal (INT) power.
Binary Output - 24 VAC Triac (Internal Power Source)
Connects OCOMnto 24~ when activated.
Internal Power Source:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
Maximum 6 cycles/hour with M9220BGx-3
40 mA minimum load current
OCOMn
15FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 3: FAC2611 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Determine Wire Size and
Maximum Cable Length
Function, Ratings, RequirementsTerminal
Label
Terminal Block
Label
See Guideline Ain Table 4.
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohm or more.
OUTn
CONFIGURABLE
(Outputs)
See Guideline Cin Table 4.
Binary Output - 24 VAC Triac (External Power Source
only)
Connects OUTnto OCOMnwhen activated.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
Maximum 6 cycles/hour with M9220BGx-3
40 mA minimum load current
Same as (Configurable) OUTn.
Analog Output Signal Common All Configurable Outputs
(COs) defined as Analog Outputs (AOs) share a common,
which is isolated from all other commons except the Binary
Input common.
Binary Output Signal Common All Configurable Outputs
(COs) defined as Binary Outputs are isolated from all other
commons, including other CO commons.
OCOMn
16FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Cable and Wire Length Guidelines
Table 4 defines cable length guidelines for the various wire sizes that may be used for wiring low-voltage (<30 V)
input and outputs.
Table 4: Cable Length Guidelines for Recommended Wire Sizes for Low-Voltage (<30 V) Inputs and Outputs
AssumptionsMaximum Cable
Length and Type
Wire Size/Gauge and Type
Guideline1
100 mV maximum voltage drop
Depending on cable and the connected input
or output device, you may have to define an
offset in the setup software for the input or
output point.
457 m (1,500 ft) twisted
wire
1.0 mm (18 AWG) stranded copperA
297 m (975 ft) twisted wire0.8 mm (20 AWG) stranded copper
183 m (600 ft) twisted wire0.6 mm (22 AWG) stranded copper
107 m (350 ft) twisted wire0.5 mm (24 AWG) stranded copper
100 mV maximum voltage drop
Depending on cable and the connected input
or output device, you may have to define an
offset in the setup software for the input or
output point.
229 m (750 ft) twisted wire1.0 mm (18 AWG) stranded copperB
137 m (450 ft) twisted wire0.8 mm (20 AWG) stranded copper
91 m (300 ft) twisted wire0.6 mm (22 AWG) stranded copper
61 m (200 ft) twisted wire0.5 mm (24 AWG) stranded copper
N/A
See Figure 8 to determine
cable length. Use twisted
wire cable.
See Figure 8 to select wire size/gauge.
Use stranded copper wire
C
1 The required wire sizes and lengths for high-voltage (>30 V) Relay Outputs are determined by the load connected to the
relay, and local, national, or regional electrical codes.
Maximum Cable Length versus Load Current
Use Figure 8 to estimate the maximum cable length relative to the wire size and the load current (in mA) when wiring
inputs and outputs.
Note: Figure 8 applies to low-voltage (<30 V) inputs and outputs only.
Figure 8: Maximum Wire Length for Low-Voltage (<30 V) Inputs and Outputs by Current and Wire Size
17FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

SA/FC Bus and Supply Power
Wiring Guidelines
Comm Bus and Power Supply Terminal Block Rating and
Requirements Table provides information about the
functions, ratings, and requirements for the
communication bus and supply power terminals; and
guidelines for wire sizes, cable types, and cable lengths
when wiring the controller's communication buses and
supply power.
Important: Refer to the N2 Modernization Guide for
Legacy N2 Controllers (LIT-12012005) for
guidelines when using this device on an N2
bus.
In addition to the guidelines in Comm Bus and Power
Supply Terminal Block Rating and Requirements Table,
observe these guidelines when wiring an SA or FC bus
and the 24 VAC supply power:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• All SA and FC bus cables, regardless of wire size,
should be twisted, insulated, stranded copper wire.
• Shielded cable is strongly recommended for all SA
and FC bus cables.
•Refer to the MS/TP Communications Bus Technical
Bulletin (LIT-12011034) for detailed information
regarding wire size and cable length requirements for
SA and FC buses.
Table 5: Communications Bus and Supply Power Terminal Blocks, Functions, Ratings, Requirements, and
Cables
Recommended Cable TypeFunction, Electrical Ratings/RequirementsTerminal
Labels
Terminal
Block/Port
Label
0.6 mm (22 AWG) stranded, 3-wire
twisted, shielded cable
recommended
FC Bus Communications+
-
FC BUS1
Signal Reference (Common) for Bus communicationsCOM
Isolated terminal (optional shield drain connection )SHLD
Bluetooth Commissioning Converter
retractable cable or 24 AWG 3-pair
CAT 3 Cable <30.5 m (100 ft)
RJ-12 6-Position Modular Connector provides:
FC Bus Communications
FC Bus Signal Reference and 15 VDC Common
15 VDC, 180 mA, Power for Bluetooth Commissioning
Converter or ZFR or ZFR Pro Wireless Router
FC Bus
FC BUS1
(Port)
0.6 mm (22 AWG) stranded, 4-wire
(2 twisted-pairs), shielded cable
recommended.
Note: The + and - wire are one
twisted pair, and the COM
and SA PWR are the
second twisted pair of
wires.
SA Bus Communications+
-
SA BUS1
SA Bus Signal Reference and 15 VDC CommonCOM
15 VDC Supply Power for Devices on the SA Bus
(Maximum total current draw for bA Bus is 240 mA.)
SA PWR
24 AWG 3-pair CAT3 cable <30.5
m (100 ft)
RJ-12 6-Position Modular Connector provides:
SA Bus Communications
SA Bus Signal Reference and 15 VDC Common
15 VDC Power for devices on the SA bus and Bluetooth
Commissioning Converter
Sensor
Sensor1
18FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Table 5: Communications Bus and Supply Power Terminal Blocks, Functions, Ratings, Requirements, and
Cables
Recommended Cable TypeFunction, Electrical Ratings/RequirementsTerminal
Labels
Terminal
Block/Port
Label
0.8 mm to 1.0 mm
(18 AWG) 2-wire
24 VAC Power Supply - Hot
Supplies 20–30 VAC (Nominal 24 VAC)
HOT24~
24 VAC Power Supply Common (Isolated from all other
Common terminals on controller)
14 VA
COM
1 The SA Bus and FC Bus wiring recommendations in this table are for MS/TP bus communications at 38.4k baud. For more
information, refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034).
Setup and Adjustments
Setting the Device Addresses
Metasys®field controllers are master devices on MS/TP
(SA or FC) buses. Before operating field controllers on
a bus, you must set a valid and unique device address
for each controller on the bus. You set a field controller's
device address by setting the positions of the switches
on the DIP switch block at the top of the controller (Figure
3). Device addresses 4 through 127 are the valid
addresses for these controllers.
The DIP switch block has eight switches numbered 128,
64, 32, 16, 8, 4, 2, and 1 (Figure 9). Switches 64 through
1 are device address switches. Switch 128 is a mode
switch that enables a controller to operate on a ZFR/ZFR
Pro Series Wireless Field Bus. Set switch 128 to Off for
all hard-wired SA and FC bus applications.
Figure 9: Device Address DIP Switch Block Set to
Address 21
Note: Metasys®field controllers ship with switch 128
ON and the remaining address switches off
rendering the controllers wired slave devices,
which do not operate on MS/TP buses, but do not
interfere with bus operation. Set a valid and
unique device address on the controller before
applying power to the controller on the bus.
To set the device addresses on Metasys®field
controllers:
1. Set all of the switches on the address DIP switch
block (128 through 1) to Off.
2. Set one or more of the seven address switches (64
though 1) to ON, so that the sum of the switch
numbers set to ON equals the intended device
address. See Table 6 for valid device addresses.
Set the highest number switch that is less than or
equal to the intended device address to ON. Then
continue setting lower numbered switches until the
total equals the intended address. For example, if the
intended device address is 21, set switch 16 to ON
first, then set switch 4 ON, followed by switch 1
(16+4+1= 21). See Figure 9.
3. Set switch 128 to OFF for all hard-wired SA and FC
bus applications.
Note: Do not connect a controller with switch 128
set to ON to an active (hard-wired) SA or FC
bus. When a controller with switch 128 set to
ON and a device address from 4 to 127 is
connected to a wired field bus, the entire field
bus is rendered inoperable until the controller
is disconnected or switch 128 is set to Off.
4. Set a unique and sequential device address for each
of the controllers connected on the SA or FC bus
starting with device address 4.
To ensure the best bus performance, set sequential
device addresses with no gaps in the device address
range (4, 5, 6, 7, 8, 9, and so on). The controllers do
not need to be physically connected on the bus in
their numerical device address order.
5. Write each controller's device address on the white
label below the DIP switch block on the controller's
cover.
Table 6 describes the FC bus and SA bus devices
addresses for Johnson Controls®MS/TP
communications bus applications.
19FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions

Refer to the MS/TP Communications Bus Technical
Bulletin (LIT-12011034) for more information on
controller device addresses and how to set them on
MS/TP buses.
Table 6: SA/FC Bus Device Address Descriptions
Use on DescriptionDevice
Address
Reserved for FC Bus Supervisory Controller
(not for use on controllers).
0
(Switch
128 Off)
Reserved for peripheral devices (not for use
on controllers).
1 to 3
(Switch
128 Off)
Used for MS/TP master devices (controllers)
that are hardwired to an SA bus or FC bus.
4 to 127
(Switch
128 Off)
Setting the N2 Controller Address to
be Greater than 127
N2-configured controllers support the full range of
possible N2 device addresses provided by the N2 protocol
standard (1-255). However, these controllers require
special configuration for addresses above 127.
Use the following instructions for controllers greater than
127.
Note: Before you perform this procedure, make sure
that your controller has been converted from
BACnet to N2 protocol first.
Note: This special configuration is required because
controller addresses above 127 were originally
intended for use with the Wireless Field Bus
system.
1. Disconnect the 24 VAC supply from the controller.
2. Remove the FC Bus connector from the controller.
3. Set the address switch set to the desired N2 address.
4. Set the address switch segment labeled 128 to OFF.
5. Reconnect the 24 VAC supply to the controller.
6. Using an SA bus connection, download the firmware
and controller application file. The download process
asks to confirm switching the communication protocol
to N2.
7. Click OK.
8. After the download is finished, disconnect the 24
VAC supply to the controller.
9. Set the address switch segment labeled 128 to ON.
10. Reattach the FC Bus connector to the controller.
11. Reconnect the 24 VAC supply to the controller.
Removing the Controller Cover
Important: Electrostatic discharge can damage
controller components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid
damaging the controller.
Important: Disconnect all power sources to the
controller before removing cover and
changing the position of any jumper or the
EOL switch on the controller. Failure to
disconnect power before changing a jumper
or EOL switch position can result in damage
to the controller and void any warranties.
The controller cover is held in place by four plastic latches
that extend from the base and snap into slots on the
inside of the housing cover.
To remove the controller cover:
1. Place your fingertips under the two cover lift tabs on
the sides of the housing cover and gently pry the top
of the cover away from the base to release the cover
from the two upper latches.
2. Pivot the top of the cover further to release it from the
lower two latches.
3. Replace the cover by placing it squarely over the
base, and then gently and evenly push the cover on
to the latches until they snap into the latched position.
Figure 10: FAC26 with Cover Removed Showing EOL
Switch and Jumper Positions
20FAC2611-0U Advanced Application Field Equipment Controller Installation Instructions