FX-PCA3611 Advanced Application
Programmable Controller Installation
Instructions
Application
The FX-PCA3611 Programmable Controller is part of the Facility Explorer® Programmable Controller
(FX-PC) family. The FX-PCA36 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 and other facility equipment.
FX-PCA36 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.
FX-PCA36 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 system network.
Switchable communications protocol
The FX-PCA3611 controllers can communicate using BACnet MS/TP, N2, or wireless Zigbee. By
default, the FX-PC 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.
FX-PCG, FX-PCX, and FX-PCV controllers are BTL tested and listed as BACnet Application Specific
Controllers (B-ASCs). FX-PCA field controllers 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 of the Controller Configuration Tool (CCT) 13.0 can be used to switch the Field Bus
communications protocol in FX-PC Controllers to be either the standard BACnet MS/TP or the N2
protocol. BACnet MS/TP is the default communications protocol for all new controllers. Switchable
communications protocols provide a cost-effective upgrade and modernization path for customers
with existing N2 controllers. The Modernization Guide for Legacy N2 Controllers (LIT-12012045)
and the controller-specific documentation provide installation and commissioning support and
include tips for efficient and safe replacement. Refer to the N2 Compatibility Options chapter of the
Controller Tool Help (LIT-12011147) for information about mapping N2 Objects in controllers with
switchable communications protocols. The N2-capable FX-PC controllers can be used as functional
replacements for legacy N2 controllers.
The N2-capable FX-PC controllers:
• have the I/O quantities and characteristics of the FX-PC family controllers
• must be programmed with CCT 13.0 and later, which has programming capabilities that are
similar (but not identical) to HVACPro, GX9100, GPL, and other legacy tools
• support SA Bus devices
• support FX-WRZ wireless sensors from the controller using the FX-WRZ7860 receiver when
configured for BACnet MS/TP communication
The N2-capable FX-PC controllers:
• do not support Zone Bus (for example, TMZ sensors and M100 actuators)
• do not support pass through in the commissioning mode
• do not support remote downloading or commissioning using BACnet routing
Part No. 24-10143-616 Rev D
2019-03-22
*2410143616D*
(barcode for factory use only)
FX-PCA3611
• do not support wireless connection to the N2 bus
Fast persistence
The FX-PCA3611-0 model has been significantly upgraded and now includes a fast persistence
feature that allows you to retain data values at a configurable interval, up to once per second.
Persistence refers to how often samples of data are stored locally. This upgrade to the persistence
feature ensures that in the event of a problem, such as a loss of power, more recent data can be
retrieved up to the rate that the data is persisted, minimizing the potential loss of data. When
power is restored, previously persisted data, up to the rate of persistence, is still available and
accessible. When persistence is configured for once per second, you risk losing only the most
recent one second of data before the power loss. Persisting data may be essential for situations
that require greater data accuracy. This may include certain methods of utility data collection and
billing
Attributes that can be persisted in the FX-PCA3611-0 include: Counter Input Present Value
Attributes, Binary Input, Binary Output, and Binary Value COS Counts and Active Time Attributes,
and PID/PRAC tuning parameters.
North American Emissions
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.
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.
Installation
Observe the following guidelines when installing an FX-PCA3611:
• To minimize vibration and shock damage, transport the controller in the original container.
• Verify that all parts shipped with the controller.
• Do not drop the controller or subject it to physical shock.
Parts included
• One installation instructions sheet
• One PCA3611 Controller
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions2
Materials and special tools needed
• Three fasteners appropriate for the mounting surface (M4 screws or #8 screws)
• One 23 cm (9.125 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 the following guidelines when mounting a PCA3611 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 correct mounting position (Figure 1).
• Whenever possible in wall-mount applications, mount the controller on a hard, even surface.
• 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 Technical specifications.
• Provide sufficient space around the controller for cable and wire connections, 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 ductwork.
• 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 an FX-PCA3611 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.
3FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Figure 1: Controller mounting positions
DIN rail mount applications
Mounting the FX-PCA3611 controller horizontally on 35 mm DIN rail is the preferred mounting
method.
To mount a controller on 35 mm DIN rail, complete the following steps:
1. Securely mount a 23 cm (9.125 in.) or longer section of 35 mm DIN rail, horizontally and
centered in the desired space, so that the controller mounts in the 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 an FX-PCA3611 directly on a wall or other flat vertical surface, complete the following
steps:
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.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions4
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.)
5FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
FX-PCA3611 physical features
Figure 3: FX-PCA3611 physical features
Table 1: Physical features
Callout Physical feature: description and references
1 Analog Output (AO) Terminal Block: Can be defined as Voltage Analog Output (0–10
VDC) or Current Analog Output (4–20 mA) (see Table 3)
2 Device Address DIP Switch Block (see Setting the Device Addresses)
3 Mounting clip
4 Binary Outputs (BO) Terminal Block: 24 VAC Triac (see Table 3)
5 24 VAC, Class 2/SELV Supply Power Terminal Block (see Supply power terminal block)
6 Cover Lift Tab (One of Two)
7 FC Bus Terminal Block (see FC bus terminal block )
8 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 Terminal wiring guidelines, functions, ratings, and requirements)
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 ohms), or Dry
Contact Binary Input (see Input and Output wiring guidelines)
12 End-of-Line (EOL) Switch (see Setting the End-of-Line (EOL) switch)
13 LED Status Indicators (see Table 8)
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions6
Wiring
CAUTION
Risk of Electric Shock:
Disconnect the power supply before making electrical connections to avoid electric shock
CAUTION
Mise En Garde: Risque de décharge électrique
Débrancher l'alimentation avant de réaliser tout raccordement électrique afin d'éviter tout risque de
décharge électrique.
CAUTION
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.
CAUTION
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 about configuring and wiring an MS/TP bus, FC bus and SA bus, refer to
the FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin (LIT-12011670).
Terminal blocks and bus ports
See FX-PCA3611 physical features for terminal block and bus port locations on the FX-PCA3611
controller. Observe the following guidelines when wiring an FX-PCA3611 controller.
7FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Input and Output terminal blocks
The fixed input terminal blocks are located on the bottom of the controller, and the output terminal
blocks are located 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 daisychain configuration using 3-wire twisted, shielded cable as shown in Figure 4. For more information
about the FC Bus terminal function, requirements, and ratings, see Table 5.
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. For more
information about the SA Bus terminal function, requirements, and ratings, see Table 5.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions8
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 Mobile Access Portal (MAP) Gateway, the FX-BTCVT Bluetooth® Commissioning
Converter, or the FX-ZFR/ZFR Pro Wireless Field Bus Router.
The FC bus port is connected internally to the FC bus terminal block. For more information about
the FC Bus port functions, requirements, and ratings, see Table 5. The FC bus port pin assignment is
shown in Figure 6.
Note:
• The MAP Gateway serves as a replacement for the BTCVT, which is no longer available for
purchase, but continues to be supported.
Figure 6: Pin number assignments for sensor, SA bus, and FC bus ports on Controllers
9FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
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 MAP Gateway, the Bluetooth® Commissioning Converter (BTCVT), the
VAV Balancing Tool, specified network sensors, or other SA Bus devices with RJ-12 plugs. When the
FX-PCA is configured for N2 network communication, you must download and commission the
controller using the SA Bus port.
A DIS1710 Local Controller Display also can be connected to the SA Bus port.
The Sensor port is connected internally to the SA bus terminal block. For more information about
the Sensor port functions, requirements and ratings, see Table 5. The Sensor Port pin assignment is
shown in Figure 6.
Note: The MAP Gateway serves as a replacement for the BTCVT, which is no longer available
for purchase, but continues to be supported.
Supply power terminal block
The 24 VAC supply power terminal block is a gray, removable, 3-terminal plug that fits into a boardmounted 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. Do not use the middle terminal on the supply power terminal
block. See Table 5 for more information about the Supply Power Terminal Block.
Figure 7: 24 VAC supply power terminal block wiring
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.
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 controller does not require an earth ground connection.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions10
Termination diagrams
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
Temperature
Sensor
Voltage
Input External
Source
Voltage
Input Internal
Source
Type of
Input/
Output
UI
UI
UI
Termination diagrams
Voltage
Input (SelfPowered)
UI
11FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 2: Termination details
Type of field
device
Current
Input External
Source
(Isolated)
Current
Input Internal
Source (2wire)
Current
Input Internal
Source (3
wire)
Type of
Input/
Output
UI
UI
UI
Termination diagrams
Current
Input External
Source (in
Loop)
Feedback
from
EPP-1000
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions12
UI
UI
Table 2: Termination details
Type of field
device
Dry Contact
(Binary
Input)
0–10 VDC
Output to
Actuator
(External
Source)
0–10 VDC
Output to
Actuator
(Internal
Source)
Type of
Input/
Output
UI or BI
CO or AO
CO or AO
Termination diagrams
Current
Output
24 VAC Triac
Output
(Switch Low,
External
Source)
CO or AO
CO or AO
13FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 2: Termination details
Type of field
device
Analog
Output
(Current)
4–20 mA
Output to
Actuator
Type of
Input/
Output
AO
AO
Termination diagrams
4–20 mA
Output to
Actuator
Incremental
Control to
Actuator
(Switch Low,
Externally
Sourced)
AO
BO
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions14
Table 2: Termination details
Type of field
device
24 VAC
Binary
Output
(Switch Low,
Externally
Sourced)
24 VAC
Binary
Output
(Switch High,
Externally
Sourced)
Incremental
Control to
Actuator
(Switch High,
Externally
Sourced)
Type of
Input/
Output
BO
BO
BO
Termination diagrams
Network
Stat with
Phone
Jack (Fixed
Address =
199)
SA Bus
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.
15FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 2: Termination details
Type of field
device
Network
Stat with
Terminals
Addressable
Network
Stat with
Terminals
(Fixed
Address =
199)
Type of
Input/
Output
SA Bus
SA Bus
Termination diagrams
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. The table also references guidelines for determining proper
wire sizes and cable lengths.
In addition to the wiring guidelines in Table 3, observe these guidelines when you wire 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.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions16
• 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.
I/O Terminal blocks, ratings, and requirements
Table 3: Terminal blocks, functions, ratings, requirements, and cables
Terminal block
label
UNIVERSAL
(Inputs)
Terminal
label
+15 V 15 VDC Power Source for active (3-wire)
INn
Function, ratings, requirements Determine wire size
input devices connected to the Universal
INn terminals.
Provides 100 mA total current
Analog Input - Voltage Mode (0–10
VDC)
10 VDC maximum input voltage
Internal 75k ohms pull-down
Analog Input - Current Mode (4–20 mA)
Internal 100 ohms load impedance. See
Setting the Input Jumpers.
Note: A current loop fail-safe jumper
must be in the Enable position to
maintain a closed 4 to 20 mA current
loop. See UI current loop jumpers.
Analog Input - Resistive Mode (60–600k
ohms)
and maximum cable
length
Same as (Universal)
INn
Note: Use 3-wire
cable for devices
that source power
from the +15V
terminal.
See Guideline A in
Table 4.
See Guideline B in
Table 4.
See Guideline A in
Table 4.
Internal 12 V. 15k ohms pull-up
Qualified Sensors: 0–2k ohms
potentiometer, RTD (1k Nickel [ Johnson
Controls® sensor], 1k Platinum, and A99B
Silicon Temperature Sensor) Negative
Temperature Coefficient (NTC) Sensor
Binary Input - Dry Contact Maintained
Mode
1 second minimum pulse width
Internal 12 V. 15k ohms pull-up
See Guideline A in
Table 4.
17FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 3: Terminal blocks, functions, ratings, requirements, and cables
Terminal block
label
BINARY
(Inputs)
Terminal
Function, ratings, requirements Determine wire size
label
ICOMn Universal Input Common for all
Universal Input terminals
Note: All Universal ICOMn terminals
share a common, which is isolated
from all other commons, except
the SA bus common. One common
screw terminal point is provided
for every two input screw terminal
points.
INn
Binary Input - Dry Contact Maintained
Mode
0.01 second minimum pulse width
Internal 18 V. 3k ohms pull-up
Binary Input - Pulse Counter/
Accumulator Mode
0.01 second minimum pulse width
(50 Hz at 50% duty cycle)
and maximum cable
length
Same as (Universal)
INn
See Guideline A in
Table 4.
ANALOG
(Outputs)
Internal 18 V. 3k ohms pull-up
ICOMn Binary Input Common for all Binary
Input (IN) terminals
Note: All Binary ICOMn terminals
share a common, which is isolated
from all other commons.
OUTn Analog Output - Voltage Mode (0–10
VDC)
10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohms
or more.
Note: The Analog Output (AO)
operates in the Voltage Mode
when connected to devices with
impedances greater than 1,000
ohms. Devices that drop below 1,000
ohm may not operate as intended
for Voltage Mode applications.
See Guideline C in
Table 4.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions18
Table 3: Terminal blocks, functions, ratings, requirements, and cables
Terminal block
label
BINARY
(Output)
Terminal
label
OCOMn Analog Output Signal Common for all
OUTn Binary Output - 24 VAC Triac Class 2, 24
Function, ratings, requirements Determine wire size
Analog Output - Current Mode (4–20
mA)
Requires an external load between 0 and
300 ohms.
Note: The Analog Output (AO)
operates in the Current Mode
when connected to devices with
impedances less than 300 ohms.
Devices that exceed below 300 ohms
may not operate as intended for
Current Mode applications.
Analog OUT terminals.
Note: All Analog Output Common
terminals (OCOMn) share a common,
which is isolated from all other
commons. One common screw
terminal point is provided for every
two output screw terminal points.
V, 500 mA (External Power Source)
Connects OUTn to OCOMn when
activated.
and maximum cable
length
See Guideline C in
Table 4.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
OCOMn Binary Output Common (for OUTn
terminal)
Note: Each Binary Output Common
terminal (OCOMn) is isolated from
all other commons, including other
Binary Output Common terminals.
Cable and wire length guidelines
The following table defines cable length guidelines for the various wire sizes that may be used for
wiring low-voltage (<30 V) input and outputs.
Note: 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.
19FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 4: Cable length guidelines for recommended wire sizes for low-voltage (<30 V) Inputs
and Outputs
Guideline Wire size/Gauge and type Maximum cable
length and type
A
B
C See Figure 8 to select wire size/
1.0 mm (18 AWG) stranded
copper
0.8 mm (20 AWG) stranded
copper
0.6 mm (22 AWG) stranded
copper
0.5 mm (24 AWG) stranded
copper
1.0 mm (18 AWG) stranded
copper
0.8 mm (20 AWG) stranded
copper
0.6 mm (22 AWG) stranded
copper
0.5 mm (24 AWG) stranded
copper
gauge. Use stranded copper
wire
457 m (1,500 ft)
twisted wire
297 m (975 ft) twisted
wire
183 m (600 ft) twisted
wire
107 m (350 ft) twisted
wire
229 m (750 ft) twisted
wire
137 m (450 ft) twisted
wire
91 m (300 ft) twisted
wire
61 m (200 ft) twisted
wire
See Figure 8 to
determine cable
length. Use twisted
wire cable.
Assumptions
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.
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.
N/A
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.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions20
Figure 8: Maximum wire length for low-voltage
(<30 V) Inputs and Outputs by current and wire size
Communications bus and supply power wiring guidelines
Table 5 provides information about the functions, ratings, and requirements for the communication
bus and supply power terminals. The table also provides guidelines for wire sizes, cable types, and
cable lengths for when you wire the controller's communication buses and supply power.
In addition to the guidelines in Table 5, observe these guidelines when you wire an SA 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 FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin (LIT-12011670) for
detailed information regarding wire size and cable length requirements for SA and FC buses.
Communications bus and supply power terminal block
Note: 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 FX-PC Series Controllers MS/
TP Communications Bus Technical Bulletin (LIT-12011670).
21FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 5: Communications bus and supply power terminal blocks, functions, ratings,
requirements, and cables
Terminal
block/Port
label
FC BUS
SA BUS
FC BUS
(Port)
Terminal labels Function, electrical ratings/
Requirements
+
FC Bus Communications
-
COM Signal Reference (Common) for Bus
communications
SHLD Isolated terminal (optional shield
drain connection )
+
SA Bus Communications
-
COM SA Bus Signal Reference and 15
VDC Common
SA PWR 15 VDC Supply Power for Devices
on the SA Bus
(Maximum total current draw for SA
Bus is 240 mA.)
FC BUS RJ-12 6-Position Modular Connector
provides:
FC Bus Communications
FC Bus Signal Reference and 15
VDC Common
Recommended cable
type
0.6 mm (22 AWG)
stranded, 3-wire
twisted, shielded cable
recommended
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.
Bluetooth Commissioning
Converter retractable
cable or 24 AWG 3-pair CAT
3 cable or above.
Sensor
(Port)
24~
15 VDC, 180 mA, Power for
Bluetooth Commissioning
Converter
SENSOR 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
HOT 24 VAC Power Supply - Hot
Supply 20–30 VAC (Nominal 24 VAC)
COM 24 VAC Power Supply Common
(Isolated from all other Common
terminals on controller)
14 VA
24 AWG 3-pair CAT3 cable
<30.5 m (100 ft)
0.8 mm to 1.0 mm
(18 AWG) 2-wire
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions22
Setup and adjustments
Setting the device address
FX-PC Series controllers are master devices on an MS/TP (SA or FC) bus. Before you operate FX-PCA
controllers on a bus, you must set a valid and unique device address for each controller on the bus.
You set an FX-PCA3611 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 on an MS/TP FC Bus.
The DIP switch block has eight switches numbered 128, 64, 32, 16, 8, 4, 2, and 1. Switches 64
through 1 are device address switches. Switch 128 is a mode switch that enables a controller to
operate on an FX-ZFR Series Wireless Field Bus. Switch 128 must be set to Off for all hard-wired SA
and FC bus applications. Set switch 128 to ON for wireless FC bus applications only.
Figure 9: Device address DIP switch block set to address 21
Note: Field controllers ship with switch 128 ON and the remainining adress switches off
rendering the controllers wired subordinate devices, which do not operate on MSTP 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 FX-PCA controllers, complete the following steps:
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.
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 totalequals theintendedaddress.
Forexample, 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 ON only for controllers on an FX-ZFR Series Wireless Field Bus application. For
all hard-wired SA and FC bus applications, ensure that switch 128 is set to Off
Note: Do not connect an FX-PC controller with switch128set to ON toanactive(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.
Refer to the FX-ZFR Wireless Field Bus System Technical Bulletin (LIT-12011660) for more informa-
tion on device addresses in wireless applications
23FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
4. Set a unique and sequential device address for each of the FX-PC 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.
The following table describes the FC bus and SA bus devices addresses for FX-PC Series controllers communications bus applications.
Refer to the FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin (LIT-12011670)
for more information on controller device addresses and how to set them on MS/TP buses.
Table 6: SA/FC bus device address descriptions
Device address Use on description
0
(Switch 128 Off)
1 to 3
(Switch 128 Off)
4 to 127
(Switch 128 Off)
0 to 3
Reserved for FC Bus Supervisory Controller (not for use on controllers).
Reserved for peripheral devices (not for use on controllers).
Used for MS/TP master devices (controllers) that are hardwired to an SA bus or
FC bus.
Reserved addresses for wired subordinate devices (not for use on controllers).
(Switch 128 ON)
4 to 127
(Switch 128 ON)
Note: FX-PC controllers ship with switch 128 ON and the remaining
address switches off rendering the controllers wired subordinate devices,
which do not operate on MS/TP buses.
Valid for MS/TP Master controllers on wireless FC Buses only.
Note: Do not connect a controller with switch 128 ON to an active (hardwired) SA or FC bus. When a controller with switch 128 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.
Setting the N2 Controller address to be greater than 127
N2-configured controllers support the full range of possible N2deviceaddressesprovidedby the
N2protocol standard (1-255). However, these controllers require special configuration for addresses
above 127. Use the following instructions for controllers with addresses greater than 127.
Note: Before you perform this procedure, make sure that your controller has been converted
from BACnet to N2 protocol first. Refer to the Modernization Guide for Legacy N2 Controllers
(LIT-12012005) for more information.
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.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions24
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 you remove the cover and
change 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, complete the following steps:
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.
25FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Figure 10: FX-PCA3611 with cover removed showing EOL switch and jumper positions
Setting the End-of-Line (EOL) switch
Each controller has an EOL switch, which, when set to ON, sets the controller as a terminating
device on the bus. See Figure 10 for the EOL switch location. The default EOL switch position is Off.
Figure 11: End-of-Line switch positions
To set the EOL switch on an FX-PCA3611 controller, complete the following steps:
1. Determine the physical location of the controller on the FC bus.
2. Determine if the controller must be set as a terminating device on the bus.
Note: For detailed information regarding EOL termination rules and EOL switch settings
on FC buses, refer to the MS/TP Communications Bus for the BCPro System Technical Bulletin
(LIT-12011908) or FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin
(LIT-12011670).
3. If the controller is a terminating device on the FC bus, set the EOL switch to ON. If the
controller is not a terminating device on the bus, set the EOL switch to Off.
When a controller is connected to power with its EOL switch set to ON, the amber EOL LED on
the controller cover is lit.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions26
Setting the Input Jumpers
CAUTION
Risk of Electric Shock:
Disconnect supply power to the controller before attempting to adjust the Binary Output Source Power
Selection Jumpers. Failure to disconnect the supply power may result in electric shock.
CAUTION
Risque de décharge électrique
Débrancher l'alimentation de l'controller avant tout réglage du Binary Output Source Power Selection
Jumpers. Le non-respect de cette précaution risque de provoquer une décharge électrique.
UI current loop jumpers
The UI current loop fail-safe jumper pins are located on the circuit board under the controller cover
near the UI terminals (Figure 10).
Note: Current Loop Jumpers are not included with the FX-PCA3611-OA. (Asia only model.)
Figure 12: Current loop jumper positions
Set the current loop jumper to the Enabled position (Figure 12) to connect an internal 100 ohms
resistor across the UI terminals, which maintains the 4–20 mA current loop circuit even when power
to the controller is interrupted or off.
Important: Current loop jumpers must be in the Disabled (default) position for all UIs that are
not set up to operate as 4–20 mA analog inputs.
The following table identifies the current loop switches associated with each UI on the FX-PCA3611
controller.
Table 7: FX-PCA3611 UI Inputs and Jumper Labels
Universal Input Label Jumper Label on Circuit Board
IN1 J5
IN2 J6
IN3 J7
27FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 7: FX-PCA3611 UI Inputs and Jumper Labels
Universal Input Label Jumper Label on Circuit Board
IN4 J8
IN5 J9
IN6 J10
IN7 J11
IN8 J12
Setting up a local display
The FX-PCA3611 model does not have an integral display, but you can connect the controller to a
FX-DIS1710 Local Controller Display. For detailed information about setting up and operating either
an integral user interface or a remotely connected FX-DIS1710 display, refer to the FX-DIS Local
Controller Display Technical Bulletin (LIT-12011666)
Commissioning the Controllers
You commission BACnet MS/TP controllers with the CCT software, either via a Bluetooth® Wireless
Commissioning Converter, a ZFR wireless dongle, or in BACnet router mode when connected to
an Supervisory Controller. Refer to Controller Tool Help (LIT-12011147) for detailed information on
commissioning controllers.
Note: The MAP Gateway serves as a replacement for the BTCVT, which is no longer available
for purchase, but continues to be supported.
Troubleshooting the Controllers
Observe the Status LEDs on the front of the field controller and see the table below to troubleshoot
the controller. To troubleshoot an integral or local controller display, refer to the FX-DIS Local
Controller Display Technical Bulletin (LIT-12011666).
LED status and states
Table 8: Status LEDs and description of LED states
LED label LED
color
POWER Green On Steady Off Steady = No Supply Power or the controller’s
FAULT Red Off Steady Off Steady = No Faults
Normal LED
state
Description of LED states
polyswitch/resettable fuse is open. Check Output wiring for
short circuits and cycle power to controller.
On Steady = Power Connected
On Steady = Device Fault; no application loaded; Main
Code download required.
Blink - 2 Hz = Download or Startup in progress, not ready
for normal operation
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions28
Table 8: Status LEDs and description of LED states
LED label LED
color
SA BUS Green Blink - 2 Hz Blink - 2 Hz = Data Transmission (normal communication)
FC BUS Green Blink - 2 Hz Blink - 2 Hz = Data Transmission (normal communication)
EOL Amber Off
Normal LED
state
(Except on
terminating
devices)
Description of LED states
Off Steady = No Data Transmission (N/A - auto baud not
supported)
On Steady = Communication lost, waiting to join
communication ring
Off Steady = No Data Transmission (auto baud in progress)
On Steady = Communication lost, waiting to join
communication ring
On Steady = EOL switch in ON position
Off Steady = EOL switch in Off position
Repair information
If the FX-PCA3611 controller fails to operate within its specifications, replace the controller. For a
replacement controller, contact your Johnson Controls representative.
Accessories
Table 9: Accessories Ordering Information
Product Code Number Description
FX-BTCVT-1 Bluetooth Commissioning Converter, with Bluetooth® Technology
FX-DIS1710-0 Local Controller Display (for use with FX-PCG1611 model only)
FX-ZFR1811-0 Wireless Field Bus Router
TP-2420 Transformer, 120 VAC Primary to 24 VAC secondary, 20 VA, Wall
Plug
Y65T31-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 40 VA,
Foot Mount, 8 in. Primary Leads and Secondary Screw Terminals,
Class 2
Note: Additional Y6x-x Series transformers are also available.
Refer to the Series Y63, Y64, Y65, Y66, and Y69 Transformers
Product Bulletin (LIT-125755) for more information.
AS-XFR050-0 Power transformer (Class 2, 24 VAC, 50 VA maximum output), no
enclosure
AP-TBK4SA-0 Replacement SA Bus Terminal Blocks, 4-Position, Brown, Bulk Pack
of 10
29FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 9: Accessories Ordering Information
Product Code Number Description
AP-TBK4FC-0 Replacement FC Bus Terminal Blocks, 4-Position, Blue, Bulk Pack of
10
AP-TBK3PW-0 Replacement Power Terminal Blocks, 3-Position, Gray, Bulk Pack of
10
ZFR-USBHA-0 USB Dongle with ZigBee® Driver provides a wireless connection
through CCT 13.0 and later to allow wireless commissioning of
the wirelessly enabled FX-PCG, FX-PCA, FX-PCX, and FX-PCV field
controllers. Also allows use of the FX-ZFR Checkout Tool (FX-ZCT) in
CCT 13.0 and later.
Note: The ZFR-USBHA-0 replaces the IA OEM DAUBI_2400
ZigBee USB dongle. For additional information on the ZFRUSBHA-0 ZigBee dongle, refer to the FX-ZFR Series Wireless Field
Bus System Technical Bulletin (LIT-12011660) or FX-ZFR Series
Wireless Field Bus System Quick Reference Guide (LIT-12011696).
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions30
Technical specifications
Table 10: FX-PCA3611 Advanced Application Programmable Controller
Product Code Numbers FX-PCA3611 Advanced Application Programmable Controller.
Supply Voltage 24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz,
power supply Class 2 (North America), Safety Extra-Low Voltage
(SELV) (Europe)
Power Consumption 14 VA maximum
Note: The VA rating does not include any power supplied
to the peripheral devices connected to binary outputs (BOs)
or configurable outputs (COs), which can consume up to 12
VA for each BO or CO; for a possible total consumption of an
additional 72 VA (maximum).
Ambient Conditions Operating: 0°C to 50°C (32°F to 122°F); 10% to 90% RH
noncondensing
Storage: -40°C to 80°C (-40°F to 176°F); 5% to 95% RH
noncondensing
Controller Addressing for
BACnet MS/TP
Controller Addressing for N2 DIP switch set; valid control device addresses 1-255
Communications Bus RS-484 BACnet MS/TP
DIP switch set; valid controller device addresses 4–127 (Device
addresses 0–3 and 128–255 are reserved and not valid controller
addresses.)
3-wire FC Bus between the supervisory controller and other
controllers.
4-wire SA Bus between controller, network sensors, and other
sensor/actuator devices, includes a lead to source 15 VDC supply
power (from controller) to bus devices.
Processor RX630 32-Bit Renesas® microcontroller
Memory 4 MB flash memory and 1 MB RAM
Real-Time Clock Backup
Power Supply
Input and Output Capabilities 8 - Universal Inputs: Defined as 0-10 VDC, 4-20 mA, 0-600k
Analog Input/Analog Output
Resolution and Accuracy
Super capacitor maintains power to the onboard real-time clock
for a minimum of 72 hours when supply power to the controller
is disconnected.
ohms, or Binary Dry Contact
6 - Binary Inputs: Defined as Dry Contact Maintained or Pulse
Counter/Accumulator Mode
6 - Binary Outputs: Defined as 24 VAC Triac (external power
source only)
6 - Analog Outputs: Defined as 0-10 VDC or 4-20 mA
Input: 15-bit resolution
Output: 15-bit resolution, +/- 200 mV accuracy in 0-10 VDC
applications
31FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
Table 10: FX-PCA3611 Advanced Application Programmable Controller
Terminations Input/Output: Fixed Screw Terminal Blocks
SA/FC Bus and Supply Power: 4-Wire and 3-Wire Pluggable
Screw Terminal Blocks
SA/FC Bus Port: RJ-12 6-Pin Modular Jacks
Mounting Horizontal on single 35 mm DIN rail mount (preferred), or screw
mount on flat surface with three integral mounting clips on
controller
Housing Enclosure material: ABS and polycarbonate UL94 5VB; Self-
extinguishing
Protection Class: IP20 (IEC529)
Dimensions (Height x Width x
Depth)
150 mm x 220 mm x 57.5 mm (5-7/8 in. x 8-3/4 in. x 2-3/8 in.)
including terminals and mounting clips
Note: Mounting space requires an additional 50 mm (2 in.)
space on top, bottom, and front face of controller for easy
cover removal, ventilation, and wire terminations.
Weight 0.5 kg (1.1 lb)
Compliance
United States: UL Listed, File E107041, CCN PAZX, UL 916,
Energy Management Equipment
FCC Compliant to CFR47, Part 15, Subpart B, Class A
Canada: UL Listed, File E107041, CCN PAZX7 CAN/CSA C22.2
No.205, Signal Equipment
Industry Canada Compliant, ICES-003
Europe: Johnson Controls, Inc. declares that this product is in
compliance with the essential requirements and other relevant
provisions of the EMC Directive.
Australia and New Zealand: RCM Mark, Australia/NZ Emissions
Compliant
BACnet International: BACnet Testing Laboratories™ Protocol
Revision 12 (BTL) BACnet Advanced Application Controller (BAAC) certification
The performance specifications are nominal and conform to acceptable industry standard. For
application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson
Controls shall not be liable for damages resulting from misapplication or misuse of its products.
FX-PCA3611 Advanced Application Programmable Controller Installation Instructions32
Points of single contact
APAC Europe NA/SA
JOHNSON CONTROLS
JOHNSON CONTROLS
JOHNSON CONTROLS
C/O CONTROLS PRODUCT MANAGEMENT
NO. 32 CHANGJIJANG RD NEW DISTRICT
WUXI JIANGSU PROVINCE 214028
CHINA
WESTENDHOF 3
45143 ESSEN
GERMANY
507 E MICHIGAN ST
MILWAUKEE WI 53202
USA
33FX-PCA3611 Advanced Application Programmable Controller Installation Instructions
© 2019 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document
revision and are subject to change without notice.
www.johnsoncontrols.com
Loading...