Johnson Controls FX-PCV1930 User manual

FX-PCV1930 VAV Controller Installation Guide
Application
The FX-PCV1930 programmable digital controllers are
designed for Variable Air Volume (VAV) applications that
communicate over BACnet®/IP networks. These FX-PCV
controllers feature combinations of an integral digital
pressure sensor (DPT), a damper actuator, and a 32-
bit microprocessor. The controllers' small package size
facilitates quick field installation and efficient use of space
without compromising high-tech control performance.
The FX-PCV1930 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 Facility Explorer® system network. These
FX-PCV controllers connect easily to the wired and wireless
network sensors for zone and discharge air temperature
sensing.
The Facility Explorer system controllers and network
sensors communicate using the BACnet protocol. The
BACnet protocol is a standard for ANSI, ASHRAE, and the
International Standards Organization (ISO) for building
controls. FX-PCV1930 Controllers are BACnet Testing
Laboratories (BTL) listed and certified BACnet Advanced
Application Controllers (B-AACs).
North American emissions compliance
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 a FX-
PCV1930 controller:
• Transport the controller in the original container to
minimize vibration and shock damage to the controller.
• Do not drop the controller or subject it to physical
shock.
Parts included
• One FX-PCV1930 controller with removable SA bus and
power terminal blocks
• One installation instructions sheet
• One self-drilling No. 10 x 25 mm (1 in.) screw
Materials and special tools needed
• Several 6 mm (1/4 in.) female spade terminals for
input and output wiring, and crimping tool for spade
mounted terminal blocks
• Small, straight-blade screwdriver for securing wires in
the terminal blocks
• 8 mm (5/16 in.) wrench or 10 mm (3/8 in.) 12-point
socket to tighten the square coupler bolt
• Several shims or washers to mount the FX-PCV
• Power screwdriver, 100 mm (4 in.) extension socket,
punch, drill, and 3.5 mm (9/64 in.) drill bits to mount the
FX-PCV
• Pliers to open and close the damper
• Required length of 3.97 mm (5/32 in.) ID pneumatic
tubing and barbed fittings
FX-PCV1930 physical features
The following figure displays the physical features of
the FX-PCV1930, and the accompanying table provides
a description of the physical features and a reference to
further information where required.
Figure 1: FX-PCA1930 Controller Wiring Terminations
and Physical Features
*241014301523C*
Part No. 24-10143-01523 Rev. C
2020-11-11
(barcode for factory use only)
FX-PCV1930-0

Table 1: FX-PCV1930 feature callout numbers and
descriptions
Callo
ut Physical features: description and references
124 VAC, Class 2 Supply Power (see Supply power
terminal block)
2
Controller Number Rotary Switches (see Setting
the controller number): can be numbered from
000 to 999
3 Binary Outputs, 24 VAC Triacs (see Table 3)
4
Configurable Outputs: Voltage Analog Output (0–
10 VDC) and Binary Output (24 VAC Triac) (see
Table 3)
5 Dual Port Fitting
6Manual Override Button (see Mounting for
information about using manual override Button)
7Controller Coupler (see Mounting for information
about using the controller coupler )
8Coupler Bolt (see Mounting for information
about setting the coupler bolt )
9
Universal Input: Voltage Analog Input (0–10 VDC)
Resistive Analog Inputs (0–600k Ω) (see Table 3):
0–2k Potentiometer
RTD: 1k Nickel, 1k Platinum, or A99B SI
NTC: 10K Type L (10K Johnson Controls Type II is
equivalent to Type L) or 2.252K Type II
Dry Contact Binary Input
10 SA Bus Terminal Block (see SA Bus terminal
block)
11 Sensor Port (SA Bus) RJ-12 6-Pin Modular Jack
(see SA Bus port)
12 ETH2 Ethernet Port for BACnet/IP
Communications
13 ETH1 Ethernet Port for BACnet/IP
Communications
14 Captive Spacer and Screw
15 Alignment Marks
16 LED Status Indicators (see Table 7)
FX-PCV1930 VAV Controller Installation Guide2

FX-PCV model information
Table 2: FX-PCV information (including point type counts per model)
Communication Protocol BACnet/IP
Modular Jacks 6-pin SA Bus with four communicating
sensors
Point Types Signals Accepted Number of Points
Universal Input (UI)
Analog Input, Voltage Mode, 0–10 VDC
Analog Input, Current Mode, 4-20mA
Analog Input, Resistive Mode, 0–2k ohm, RTD (1k
NI [Johnson Controls], 1k PT, A998 SI), NTC (10k
Type L, 2.252k Type 2)
Binary Input, Dry Contact Maintained Mode
3
Binary Output (BO) 24 VAC Triac 3
Configurable Output (CO) Analog Output, Voltage Mode, 0–10 VDC
Binary Output Mode, 24 VAC Triac 2
Integrated Actuator Internal 1
Differential Pressure Transducer (DPT) Internal 1
Up to 4 NS Series Network Zone Sensors
Zone Sensor Input On SA Bus Up to 5 WRZ sensors when using the one-to-
one WRZ-78xx wireless configuration
FX-PCV1930 VAV Controller Installation Guide 3

Mounting
Observe the following guidelines when mounting a PCV:
Note: When the air supply to the VAV box is below
10°C (50°F), make sure that any condensation on the
VAV box, particularly on the damper shaft, does not
enter the FX-PCV
• Ensure that the mounting surface can support the
controller and any user-supplied enclosure. Mount
the controller vertically above the damper shaft to
allow any shaft condensation to fall away from the
controller. Additional measures may be required in
some installations.
• Mount the controller on a hard, even surface whenever
possible.
• 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
that matches the ambient conditions specified in the
Technical specifications section.
• Provide sufficient space around the controller for cable
and wire connections and adequate ventilation through
the controller (at least 50 mm [2 in.] on the top, bottom,
sides, and front of the controllers).
• Mount the VMA vertically above the damper shaft to
allow any shaft condensation to fall away from the
VMA.
Do not mount the controller in areas where
electromagnetic emissions from other devices or wiring
can interfere with controller communication.
• Avoid mounting the controller on surfaces with
excessive vibration.
• When using the PCV1930 to replace an FX-PCV1610 or
FX-PCV1620 controller, plug the unused open hole in
the duct work from the original FX-PCV mounting if
possible. Plug the hole using the sheet metal screw
from the original installation (preferred option).
On panel or enclosure mount applications, observe these
additional guidelines:
• Do not install the controller in an airtight 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.
To mount the controllers, complete the following steps:
1. Set all the switches on the controller to their known
settings.
2. Place the controller in the proper mounting position
on the damper shaft so that the wiring connections
are easily accessible. Make sure the controller base is
parallel to the VAV box (perpendicular to the damper
shaft). If needed, use a spacer to offset tipping of the
controller caused by the shaft bushings.
Note: Use the alignment marks to center the
captive spacer to ensure sufficient movement in
either direction.
3. Secure the self-drilling No. 10 screw through the
captive spacer (Figure ) with a power screwdriver
and 100 mm (4 in.) extension socket. Otherwise, use
a punch to mark the position of the shoulder washer,
and then drill a hole into the VAV box using a 3.5
mm (9/64 in.) drill bit. Insert the mounting screw
and tighten against the spacer. For the FX-PCV1628
models, use the additional 1.25 inch screw to mount
to one of the two holes provided near the actuator
opening (Figure ) to mount the controller.
Important: Do not overtighten the screw, or
the threads may strip. If mounting to the VAV
box, make sure the screws do not interfere with
damper blade movement.
4. Locate the damper position using the typical
marking on the end of the damper shaft as shown in
the following figure.
Figure 2: Typical Damper End Shaft Icons
5. Note the direction, clockwise (CW) or
counterclockwise (CCW), required to close the
damper. Grasp the damper shaft firmly with pliers,
and either manually close the damper for 90° boxes
or manually open the damper for 45° or 60° boxes.
6. Push down and hold the Manual Override button
(see FX-PCV1930 physical features) and turn the
controller coupler until it contacts the mechanical
end-stop at either the full-closed (90° boxes) or full-
open (45° and 60° boxes) position.
7. If the damper for a 90° box closes CCW, rotate the
coupler to the CCW mechanical limit. If the damper
for a 90° box closes CW, rotate the coupler to the CW
mechanical limit. The open end-stop is automatically
set for 90° boxes. For 45° and 60° boxes, hard stops
must be provided at both full-closed and full-open
damper positions. By installing the controller at the
full-open position, the controller provides the open
stop for 45° and 60° boxes. The closed damper seal
provides the full-closed stop.
Note: The integrated actuator has a stroke
time of 60 seconds for 90° of travel. The stroke
time is the amount of time (in seconds) that
it takes the actuator to move from the fully
closed to fully opened position or from fully
open to fully closed position. For proper
operation, the actuator stroke time must be
configured in the CCT application based on
the actual time it takes the actuator to drive
the damper. The default setting is 60 seconds
(for 90° VAV boxes). For 45° and 60° VAV boxes,
the actuator stroke time must be adjusted.
Refer to Controller Tool Help (LIT-12011147) for
instructions on setting the actuator stroke time
in the application.
FX-PCV1930 VAV Controller Installation Guide4

8. All models are compact in size and can be easily
installed on VAV boxes. The models have either a
round shaft up to 13 mm in diameter or a 10 mm
square shaft. Tighten the square coupler bolt to the
shaft using an 8 mm (5/16 in.) wrench or 10 mm (3/8
in.) 12-point socket. Tighten to 10.5 to 11.5 N·m (95 to
105 lb·in).
9. (Skip this step if you are installing the VMA1626
model) Loop the pneumatic tubing (supplied by field
personnel) to include a trap for condensation. Attach
the needed length of tubing (supplied and installed
by field personnel) to the dual port fitting on the
controller and the other ends of the tubing to the
pressure transducer in the VAV box application.
Note: The controller uses a digital non-flow
pressure sensor (all models except the FX-
PCV1626) with bidirectional flow operation. You
can connect the high- and low-pressure DP
tubes to either barbed fitting on the controller.
You do not need to make a specific high- or
low-side connection when you attach the
tubing to the barbed fittings on the controller.
10. Push the Manual Override button, and turn the
actuator coupling manually to ensure that the
actuator can rotate from full-closed to full-open
positions without binding.
11. Complete the mounting by rotating the damper to
the full-open position.
CAUTION
Risk of Property Damage
Rotate the damper to the full-open position before
starting the air handler. Failure to rotate the damper to
the full-open position may result in damage to the VAV
box or ductwork when the air handler is started.
ATTENTION
Risque de dégâts matériels
Faire pivoter le registre pour le placer en position
d'ouverture complète avant de démarrer l'unité de
traitement d'air. Le non-respect de cette directive
risque d'endommager le caisson de l'unité à volume
d'air variable (VAV) ou le réseau de conduites au
démarrage de l'unité de traitement d'air.
Wiring
CAUTION
Risk of Electric Shock
Disconnect the power supply before making electrical
connections to avoid electric shock.
ATTENTION
Risque de décharge électrique
Débrancher l'alimentation avant de réaliser tout
raccordement électrique afin d'éviter tout risque de
décharge électrique.
Important: Do not connect supply power to the
controller before finishing wiring and checking all
wiring connections. Short circuits or improperly
connected wires can result in damage to the
controller and void any warranty.
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 information on configuring and wiring a BACnet/
IP network, refer to the Facility Explorer IP Networks for
BACnet/IP Controllers Configuration Guide (LIT-12012980).
For detailed information on configuring and wiring an
MS/TP Bus, FC Bus, or SA Bus, refer to the FX-PC Series
Controllers MS/TP Communications Bus Technical Bulletin
(LIT-12011670).
Network topology
FX-PCV1930 controllers may be connected to a building
automation network in multiple ways: as daisy-chained
devices, as part of a star (also called home run) type
network, or as part of a ring network.
To daisy-chain FX-PCV1930 controllers, connect the
controllers to the bus supervisor in a chain with the
Ethernet cable connecting to the FX-PCV1930 at the ETH1
or ETH2 port, and connecting to the next device from the
other port. Benefits of daisy-chained networks are that
they require less physical wiring and new devices can be
added easily to the network.
FX-PCV1930 VAV Controller Installation Guide 5

In a star network, each FX-PCV1930 controller is
connected by Ethernet cable directly back to a main
switch. This configuration reduces the possibility of
network failure but requires more wiring to install.
A ring network is a chain of controllers virtually closed
by a software component in an Ethernet switch. Not
all switches support the ring topology. The dual-port
controller from Johnson Controls supports Media
Redundancy Protocol (MRP). With MRP, a chain of
Ethernet devices can overcome any single communication
failure, with a recovery time faster than in a BACnet
system.
For more information on network topologies for IP
Controllers, see Facility Explorer IP Networks for BACnet/IP
Controllers Configuration Guide (LIT-12012980).
FX-PCV terminals and bus ports
See FX-PCV1930 physical features for input and output
terminal and bus port locations on the controllers.
Observe the following guidelines when wiring an FX-PCV
controller.
Input and Output terminals
The input spade terminals are located on the bottom of
the FX-PCV near the FC Bus terminal block. The output
spade terminals are located on the top of the controller
near the power supply terminal block.
SA Bus terminal block
The SA Bus terminal block is a brown, removable, 4-
terminal plug with +15 VDC that fits into a board-mounted
jack. Wire the removable SA Bus terminal block plugs
on the FX-PCV and other SA Bus devices in a daisy-chain
configuration using 4-wire twisted, shielded cable as
shown in Figure 3.
Figure 3: SA bus terminal block wiring
SA Bus 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 Mobile Access Portal (MAP) Gateway,
the VAV Balancing Tool, specified network sensors, or
other SA Bus devices with RJ-12 plugs. A FX-DIS1710 Local
Controller Display can also be connected to the SA Bus
port.
Note: Do not use the modular SA Bus port and the
terminal block SA Bus simultaneously. Only use one
of these connections at a time.
The Sensor port is connected internally to the SA bus
terminal block. For more information about Sensor port
functions, requirements, and ratings, see Table 5.
Figure 4: Pin number assignments for Sensor (SA Bus)
Port on FX-PCV1930
Supply power terminal block
The 24 VAC supply power terminal block is a gray,
removable, 2-terminal plug that fits into a board-mounted
jack on the upper left of the FX-PCV controller.
Wire the 24 VAC supply power wires from the transformer
to the HOT and COM terminals on the terminal plug
as shown in the following figure. See Communication
bus and supply power terminal blocks, ratings, and
requirements for more information.
Figure 5: 24 VAC Supply Power Terminal Block Wiring
Important: Exercise caution while rewiring the
power plug when replacing controller. The supply
power terminal on a new is a two-position terminal
block (Figure 5). Stray wire strands may make
contact and cause a short circuit across the 24 VAC
power supply.
FX-PCV1930 VAV Controller Installation Guide6

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. However, when grounding the
secondary of the 24 VAC transformer is required,
only one connection to ground should be made near
the transformer. See the following figure.
Figure 6: Transformer grounding
CAUTION
Risk of Property Damage
Do not apply power to the system before checking all
wiring connections. Improper wiring of this terminal
may cause a short circuit across the 24 VAC power
supply on FX-PCV models. A short circuit may result
in a tripped circuit breaker or blown fuse. If using a
transformer with a built-in fuse, the transformer may
need to be replaced.
ATTENTION
Risque de dommages matériels
Ne mettez pas l’appareil sous tension avant d’avoir
vérifié toutes les connexions du câblage. Le câblage
inadéquat de cette borne peut causer un court-
circuit sur l’alimentation électrique de 24 V c.a. des
FX-PCV modèles. Un court-circuit peut causer le
déclenchement du disjoncteur ou le grillage d’un
fusible. Si vous utilisez un transformateur avec un
fusible intégré, vous pourriez devoir remplacer le
transformateur.
To wire the controller, complete the following steps:
1. Terminate wiring according the appropriate figure in
Termination diagrams.
2. Wire network sensors and other devices to the FX-
PCV's SA Bus.
3. Ensure that the device address DIP switches are set
to the appropriate device address. Also, activate the
EOL switch if necessary.Ensure that the FX-PCV1930
is assigned a controller number. Set the controller
number via the rotary switches at the top of the
controller.
4. Connect the controller to 24 VAC, Class 2 power.
Note: If you are using the FX-PCV1656 controller
with the Wireless Field Bus System, refer to the FX-
ZFR182x Pro Series Wireless Field Bus System Bulletin
(LIT-12012378) or the FX-ZFR Series Wireless Field Bus
System Bulletin (LIT-12011660).
Terminal wiring guidelines,
functions, ratings, and requirements
Input and Output wiring guidelines
See Table 3 for information about the functions, ratings,
and requirements for the input and output terminals, and
for wire sizes and cable lengths guidelines.
In addition, observe the following guidelines when wiring
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 twisted, insulated,
and stranded copper wires.
• Shielded cable is not required for input or output
cables but is recommended for input and output cables
that are exposed to high electromagnetic or radio
frequency noise.
• Cable runs of less than 30 m (100 ft) typically do not
require an offset in the input/output software setup.
• Cable runs over 30 m (100 ft) may require an offset in
the input/output software setup.
FX-PCV1930 VAV Controller Installation Guide 7

I/O terminal blocks, ratings and requirements
Table 3: I/O terminal blocks, functions, ratings, requirements, and cables
Terminal block label Terminal labels Function, ratings, and requirements To determine wire size and
maximum cable length
+15 V
15 VDC Power Source for active (3-wire) input
devices connected to the Universal INn terminals.
Provides 35 mA total current.
Same as (Universal) INn.
Note: Use 3-wire cable for
devices that source power
from the +15 V terminal.
Analog Input - Voltage Mode (0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohm Pulldown
See Guideline A in Table 4.
Analog Input - Resistive Mode (0–600k ohm)
Internal 12 V, 15k ohm pull up
Qualified Sensors: 0–2k potentiometer,
RTD (1k Nickel [Johnson Controls sensor],
1k Platinum, and A99B Silicon Temperature Sensor)
Negative Temperature Coefficient (NTC) Sensor
10K Type L (10K Johnson Controls Type II is
equivalent to Type L) or 2.252K Type II
See Guideline A in Table 4.INn
Binary Input - Dry Contact Maintained Mode
1 second minimum pulse width
Internal 12 V, 15k ohm pull up
See Guideline A in Table 4.
UNIVERSAL
(Inputs)
ICOMn
Universal Input Common for all Universal IN
terminals
Note: All Universal ICOMn terminals are
isolated from all other commons.
Same as (Universal) INn.
OUTnBinary Output - 24 VAC Triac (Internal Power)
Sources internal 24 VAC power (24~ HOT) See Guideline C in Table 4.
BINARY
(Outputs) OCOMn
Binary Output - 24 VAC Triac (Internal Power)
Connects OCOMn to 24~ COM when activated.
Internal Power Source:
30 VAC maximum voltage to load
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
See Guideline C in Table 4.
FX-PCV1930 VAV Controller Installation Guide8

Table 3: I/O terminal blocks, functions, ratings, requirements, and cables
Terminal block label Terminal labels Function, ratings, and requirements To determine wire size and
maximum cable length
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
External 1k to 50k ohm load required
See Guideline A in Table 4.
OUTn
Binary Output 24 VAC Triac
Connects OUT to OCOM when activated.
External Power Source:
30 VAC maximum voltage to load
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
See Guideline C in Table 4.
Analog Output Signal Common: All Configurable
Outputs defined as Analog Outputs share a
common, which is isolated from all other commons
except the Binary Input common.
CONFIGURABLE
(Outputs)
OCOMnBinary Output Signal Common: All Configurable
Outputs defined as Binary Outputs are isolated
from all other commons, including other
Configurable Output commons.
Same as (Configurable) OUTn.
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.
Table 4: Cable length guidelines
Guideline Wire size/Gauge and type Maximum cable length and
type Assumptions
1.0 mm (18 AWG) stranded copper 457 m (1,500 ft) twisted wire
0.8 mm (20 AWG) stranded copper
297 m (975 ft) twisted wire 297 m (975 ft) twisted wire
0.6 mm (22 AWG) stranded copper
183 m (600 ft) twisted wire 183 m (600 ft) twisted wire
A
0.5mm (24 AWG) stranded copper
107 m (350 ft) twisted wire 107 m (350 ft) twisted wire
100 mV maximum voltage drop
Depending on the cable length
and the connected input or
output device, you may have
to define an offset in the setup
software for the input or output
point.
1.0 mm (18 AWG) stranded copper 229 m (750 ft) twisted wire
0.8 mm (20 AWG) stranded copper
297 m (975 ft) twisted wire 137 m (450 ft) twisted wire
0.6 mm (22 AWG) stranded copper
183 m (600 ft) twisted wire 91 m (300 ft) twisted wire
B
0.5mm (24 AWG) stranded copper
107 m (350 ft) twisted wire 61 m (200 ft) twisted wire
100 mV maximum voltage drop
Depending on the cable length
and the connected input or
output device, you may have
to define an offset in the setup
software for the input or output
point.
C
See Maximum cable length versus
load current to select wire size/
gauge.
Use stranded copper wire.
See Maximum cable length
versus load current to determine
cable length.
Use twisted wire cable.
N/A
Maximum cable length versus load
current
Use Figure 7 to estimate the maximum cable length
relative to the wire size and the load current (in mA) when
wiring inputs and outputs.
FX-PCV1930 VAV Controller Installation Guide 9

Figure 7: Maximum Wire Length by Current and Wire
Size Communications bus and supply power
wiring guidelines
Communication bus and supply power terminal blocks,
ratings, and requirements provides information about
terminal block functions, ratings, and requirements..
In addition, observe these guidelines when wiring the SA
Buses and supply power:
• Run all low-voltage wiring and cables separate from
high-voltage wiring.
• All SA Bus cables, regardless of wire size, should be
twisted, insulated, stranded copper wire.
• Shielded cable is strongly recommended for all SA Bus
cables.
• Refer to the FX-PC Series Controllers MS/TP
Communications Bus Technical Bulletin (12011670) for
detailed information regarding wire size and cable
length requirements for SA Buses.
Communication bus and supply power terminal blocks, ratings, and requirements
Table 5: Communication bus and supply power terminal blocks, functions, ratings, requirements, and cables
Terminal block/Port label Terminal labels Function, electrical ratings/
Requirements Recommended cable type11
+
-FC Bus Communications
COM Signal Reference (Common) for bus
communications
FC BUS 22
SHLD Isolated terminal (optional shield drain
connection)
0.6 mm (22 AWG) stranded, 3-wire
twisted, shielded cable recommended
+
-SA Bus Communications
COM SA Bus Signal Reference and 15 VDC
Common
SA BUS33
POWER 15 VDC Supply Power for Devices on the
SA Bus
0.6 mm (22 AWG) stranded, 4-wire
(2 twisted-pairs), shielded cable
recommended
Note: The + and - wires are one
twisted pair, and the COM and
SA PWR wires are the second
twisted pair.
FC BUS2FC BUS
RJ-12 6-Position Modular Port provides
FC Bus Communications
FC Bus provides 15 VDC Power for
Wireless ZigBee Field Bus Router
SA BUS2SA BUS
RJ-12 6-Position Modular Port provides
SA Bus Communications
SA Bus provides 15 VDC Power for:
• NS Series Sensors
• MAP Gateway 4.2 or above
• Wireless ZigBee Series One-to-
One Wireless Receiver
• FX-DIS1710 Local Controller
Display
• FX-ATV VAV Balancing Tool
24 AWG 3-pair CAT 3 Cable <30.5 m
(100 ft)
ETH1 and ETH2 ETH1 and ETH2 Connect to BACnet/IP Network Ethernet ports; 10/100 Mbps; 8-pin
RJ-45 connector
HOT 24 VAC Power Supply - Hot
Supplies 20–30 VAC (Nominal 24 VAC)
24~
COM
24 VAC Power Supply Common
The terminal is isolated from the FC bus
common.
0.8 mm to 1.0 mm
(20 to 18 AWG) 2-wire
1 To determine wire size and cable lengths for cables other than the recommended cables, see Table 4.
FX-PCV1930 VAV Controller Installation Guide10

2 The SA 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).
3 The FC bus and SA bus wiring recommendations are for MS/TP Bus communications at 38.4k baud. .
FX-PCV1930 VAV Controller Installation Guide 11

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 6: Termination details
Type of field device Type of Input/
Output Termination diagrams
Voltage Input -
External Source UI
Voltage Input -
Internal Source UI
Voltage Input (Self-
Powered) UI
Temperature Sensor UI
Dry Contact UI
FX-PCV1930 VAV Controller Installation Guide12

Table 6: Termination details
Type of field device Type of Input/
Output Termination diagrams
0–10 VDC Output to
Actuator (Internal
Source)
CO
0–10 VDC Output to
Actuator (External
Source)
CO
24 VAC Triac Output
(Switch Low, External
Source)
CO
Note: Applies to CO4 and CO5.
Incremental Control to
Actuator (Switch Low,
External Source)
CO
Note: Applies to CO4 and CO5.
Analog Output
(Voltage) CO
Incremental Control to
Actuator (Switch Low,
Internally Sourced)
BO
Note: Applies to BO3, BO1, and BO2.
FX-PCV1930 VAV Controller Installation Guide 13

Table 6: Termination details
Type of field device Type of Input/
Output Termination diagrams
24 VAC Binary Output
(Switch Low, Internally
Sourced)
BO
Network Stat with
Phone Jack (Fixed
Address = 199)
SA Bus
Network Stat with
Terminals Addressable SA Bus
Network Stat with
Terminals (Fixed
Address = 199)
SA Bus
Setup and adjustments
Important: Electrostatic discharge can damage
controller components. Use proper electrostatic
discharge precautions during installation, setup, and
servicing to avoid damaging the controller.
Setting the controller number
Each controller on a network must have a unique number
on the subnet where it resides in order to identify it in
the Controller Tool for uploading, downloading, and
commissioning.
The controller number is set using three rotary switches
and may be numbered from 000 to 999. The numbers are
ordered from left to right, most significant bit (MSB) to
least significant bit (LSB).
In the following figure the switches are set to 4 2 5,
designating this controller as controller number 425. The
controller number must match the controller number
defined in Controller Configuration Tool (CCT) under
Define Hardware > Network Settings. The number
of the controller can be written in the white squares
provided so the controller number can be more easily
seen from a distance.
FX-PCV1930 VAV Controller Installation Guide14

Figure 8: Rotary switch for setting controller numbers Note: The BACnet device ID is calculated using the
value of controller number added to 2000000. A
device ID configured in this manner does not require
any configuration from CCT.
Troubleshooting the Controllers
Observe the Status LEDs on the front of the expansion
module. Table 7 provides LED status indicator information
for troubleshooting the expansion module.
General troubleshooting provides some additional
troubleshooting information for possible problems.
Note: If you experience short circuits in the 24 VAC
power supply causing protective devices such as
breakers or fuses to trip, make sure that the power
connections on theFX-PCV1930 are not reversed. The
most common cause of this problem is when the
24 VAC power supply on the FX-PCV1930 is reversed
but not reversed on a connected secondary device.
Improper wiring of this power terminal may cause a
short circuit across the 24 VAC power supply.
FX-PCV1930 VAV Controller Installation Guide 15

LED status and states
Table 7: Status LEDs and description of LED states
LED label LED color Normal state Descriptions of LED states
POWER Green On Steady Off Steady = No power
On Steady = Power is supplied by primary voltage
FAULT Red Off Steady
Blink - 2 Hz = Download or startup in progress, not
ready for normal operation, SA Bus devices offline
(such as netsensors)
Rapid blink = SA Bus communications issue
Off Steady = No faults
On Steady = Device fault or no application loaded
SA BUS Green Blink - 2 Hz
Blink - 2 Hz = Data transmission (normal
communication)
Off Steady = No data transmission (N/A - auto baud
not supported)
On Steady = Communication lost; waiting to join
communication ring
ETH1 Green Off Off Steady = ETH1 is not connected
Blinking = ETH1 connected and communicating
ETH2 Green Off Off Steady = ETH2 is not connected
Blinking = ETH2 connected and communicating
FX-PCV1930 VAV Controller Installation Guide16

General troubleshooting
Table 8: Troubleshooting
Problem Possible cause and correction Verification
Controller is OFF.
• Transformer has tripped:
• Power is at Primary of
Transformer, 0V at Secondary.
• Breaker/Fuse has tripped:
• Power is at Primary of
Transformer, 24V at Secondary,
0V at Fuse/Breaker.
Cause:
1. Transformer is shorted.
2. 24 VAC powered sensor is not
wired with the same polarity as the
controller.
3. SA Bus device is not wired with the
same polarity as the controller.
Correction:
1. Ensure polarity of ~24 V COM / ICOM /
+ 15VCOM/SA BUS COM on the
controller, auxiliary devices, and I/O is
the same.
2. Ensure OUT1-OUT3 terminals of binary
outputs are not connected to ~24
VAC COM, and verify that OCOM1-
OCOM3 are not connected to ~24 VAC
HOT (these terminals are internally
sourced).
3. Verify the short circuit has been
resolved with an ohm-meter.
4. Reset the breaker/fuse or replace the
transformer.
Note: When replacing the
transformer, it is recommended to
replace with a model that utilizes a
resettable circuit breaker. A circuit
breaker makes solving wiring
problems easier.
1. Disconnect the Secondary of the 24
VAC transformer.
2. Use an ohm-meter to measure
between ~24 V HOT and COM; there
must be no short circuit.
Note: Some installations require
the Secondary of the Transformer
to be Earth Grounded. If this is
the case, verify that the Earth
Ground connection is valid and not
shared between multiple pieces of
equipment.
Configurable output - analog mode is
invalid:
0–10 V output is set to 10–100%, but 0 V is at
output terminals.
Output is in protection mode, a state the
analog portion of the configurable output
goes into when it detects a wiring problem.
The analog output is set to 0% regardless
of the command whenever a wiring fault is
detected.
Cause:
There is a power polarity mismatch between
the connected device and the configurable
output.
Correction:
Ensure polarities of ~24 V COM/OCOM
match and that the connected end device
uses the same polarity.
1. Measure the output and verify that it
matches the command.
2. Disconnect the connected device
and verify the commanded value is
present.
Configurable output - analog mode is
invalid:
0–10V output has an undesirable offset of up
to 1 V.
The Common Reference is incorrect.
Cause:
The OCOM terminal is not connected.
Correction:
Connect the OCOM terminal of the
configurable output to the common of the
connected end device.
1. Measure the output and verify that it
matches the command.
2. Disconnect the connected device
and verify the commanded value is
present.
Repair information
If the controller fails to operate within its specifications, replace the unit. For a replacement unit, contact the nearest
Johnson Controls representative.
FX-PCV1930 VAV Controller Installation Guide 17

Accessories
Table 9: Controller accessories (order separately)
Product code number Description
FX-PCX Series Expansion Input/Output
Modules
Refer to the FX-PC Series Programmable Controllers and Related Products Product Bulletin
(LIT-12011657) for a complete list of available FX-PCX Expansion I/O Modules.
Mobile Access Portal (MAP) Gateway Refer to the Mobile Access Portal Gateway Catalog Page (LIT-1900869) to identify the
appropriate product for your region.
TL-CCT-0 Controller Configuration Tool
FX-FCP-0 Metasys Equipment Controller Firmware Package Files for CCT
FX-WRZ Series Wireless Sensors Refer to the FX-WRZ Series Wireless Room Sensors Product Bulletin (LIT-12011687) for a
complete list of available FX-WRZ Series Wireless Sensors.
FX-DIS1710-0 Local Controller Display
Y64T15-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 92 VA, Foot Mount, 72.2 cm (30
in.), Primary Leads and 76.2 cm (30 in.) Secondary Leads, Class 2
Y65A13-0 Transformer, 120 VAC Primary to 24 VAC Secondary, 40 VA, Foot Mount (Y65AS), 20.32 cm (8
in.), Primary Leads and 76.2 cm (30 in.) Secondary Leads, Class 2
Y65T42-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 40 VA, Hub Mount (Y65SP+),
20.32 cm (8 in.), Primary Leads and Secondary Screw Terminals, Class 2
Y65T31-0 Transformer, 120/208/240 VAC Primary to 24 VAC Secondary, 40 VA, Foot Mount (Y65AR+),
20.32 cm (8 in.), Primary Leads and Secondary Screw Terminals, Class 2
AP-TBK1002-0 2-position Screw Terminal that plugs onto FX-PCV Output Point Spade Lugs
AP-TBK1003-0 3-position Screw Terminal that plugs onto FX-PCV Output Point Spade Lugs
AP-TBK4SA-0 Replacement MS/TP SA Bus Terminal, 4-Position Connector, Brown, Bulk Pack of 10
AP-TBK2PW-0 Replacement Power Terminal, 2-Position Connector, Gray, Bulk Pack of 10
MS-VMAACT-701 VMA Actuator Assembly Gearbox Replacement Kit
AS-CBLTSTAT-0 Cable adapter for connection to 8-pin TE-6700 Series sensors
F-1000-325 Replacement Barbed Fitting for use on FX-PCV1930, for Connecting Tubing, Bulk Pack of 10
F-1000-326 Flexible Tubing Extension with Barbed Fitting for FX-PCV1930,, 35.56 cm (14 in.) Length, Bulk
Pack of 20
TL-BRTRP-0 Portable BACnet/IP to MS/TP Router
FX-PCV1930 VAV Controller Installation Guide18

Technical specifications
Table 10: FX-PCV Controllers
Product Code Numbers
FX-PCV1930-0: 32-bit, Integrated VAV Controller/Actuator/Pressure Sensor - DPT, 3 UI
and 3 BO, 2 CO, 24 VAC, and SA Bus, Includes 6-pin Sensor Port for use with TE-7xx Series
Non-Communicating Sensors and two Ethernet Ports for BACnet/IP Communications
Communications Protocol BACnet/IP
Supported Supervisor FX-80, FX Server
Power Requirement 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
10 VA typical, 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 60 VA (maximum).
Ambient Conditions Operating: 0°C to 50°C (32°F to 122°F)
Storage: -40°C to 70°C (-40°F to 158°F)
Terminations
Inputs/Outputs 6.3 mm (1/4 in.) Spade Lugs
SA Bus, and Supply Power: 4-Wire and 2-Wire Pluggable Screw Terminal Blocks
SA Bus Modular Ports: RJ-12 6-Pin Modular Jacks
Communications Bus
Two Ethernet ports; 10/100 Mbps; 8-pin RJ-45 connector
SA Bus: 0.6 mm (22 AWG) stranded, 4-wire (2-twisted pairs) shielded cable recommended
from the controller for network sensors and other sensor/actuator devices; includes a
terminal to source 15 VDC supply power from the FX-PCV1930 to SA Bus devices
Note: For more information, refer to the FX-PC Series Controllers MS/TP
Communications Bus Technical Bulletin (LIT-12011670) or the N2 Communication Bus
Technical Bulletin (LIT-636018).
Processor RX63N 32-bit Renesas microcontroller
Memory 16 MB serial flash memory and 8 MB of SDRAM
Universal Input (UI) Resolution/
Configurable Output (CO) Accuracy UI Analog Input Mode: 15-bit resolution on UIs
Air Pressure Differential Sensor
Range: -1.5 in. to 1.5 in. W.C.
Performance Characteristics:
Accuracy: ±1.3% Full Span Maximum. Combined error due to offset, non-linearity, and
temperature variation. Combined error due to offset, non-linearity, and temperature
variation. (±0.039 in. W.C.)
Typical accuracy at zero (null) pressure is ±0.02 in. W.C. Includes error due to non-
linearity. (if provided)
Actuator Rating 4 N·m (35 lb·in) minimum shaft length = 44 mm (1-3/4 in.) (if provided)
Mounting Mounts to damper shaft using single set screw and to duct with single mounting screw
Dimensions
(Height x Width x Depth)
165 mm x 125 mm x 73 mm (6.5 in. x 4.92 in. x 2.9 in.)
Center of Output Hub to Center of Captive Spacer: 135 mm (5-5/16 in.)
Weight 0.65 kg (1.45 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.
Suitable for Use in Other Environmental Air Space (Plenums) in Accordance with Section
300.22 (C) of the National Electrical Code.
Canada:
UL Listed, File E107041, CCN PAZX7, CAN/CSA C22.2 No. 205, Signal Equipment.
Industry Canada Compliant, ICES-003
FX-PCV1930 VAV Controller Installation Guide 19

Table 10: FX-PCV Controllers
Europe:
CE Mark – Johnson Controls declares that this product is in compliance with the essential
requirements and other relevant provisions of the EMC Directive; RoHS Directive
Australia and New Zealand:
RCM Mark, Australia/NZ Emissions Compliant.
BACnet International
BACnet Testing Laboratories (BTL) Protocol Revision 18 Listed and Certified BACnet
Advanced Application Controller (B-AAC), based on the ANSI/ASHRAE 135-2016
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.
Product warranty
This product is covered by a limited warranty, details
of which can be found at www.johnsoncontrols.com/
buildingswarranty.
Patents
Patents: https://jcipat.com
Single point of contact
APAC Europe NA/SA
JOHNSON CONTROLS
C/O CONTROLS PRODUCT
MANAGEMENT
NO. 32 CHANGJIJANG RD NEW
DISTRICT
WUXI JIANGSU PROVINCE 214028
CHINA
JOHNSON CONTROLS
WESTENDHOF 3
45143 ESSEN
GERMANY
JOHNSON CONTROLS
507 E MICHIGAN ST
MILWAUKEE WI 53202
USA
Contact information
Contact your local branch office:
www.johnsoncontrols.com/locations
Contact Johnson Controls: www.johnsoncontrols.com/
contact-us
© 2020 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision and
are subject to change without notice.
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