Figure 1: System 450 Module Dimensions, mm (in.)
127
(5)
4
Screw
Slots
11
(7/16)
(2-3/8)
75
(2-15/16)
1/2 in. No minal
Trad e Size
Conduit Hole
22
(7/8)
40
(1-9/16)
DIN Rail
Clips
FIG:sys450_dims
System 450™ Series Control Modules with Relay Outputs
Installation Instructions
C450CBN-1
C450CCN-1
Part No. 24-7664-2675, Rev. G
Issued April 27, 2010
Supersedes December 21, 2009
Application
IMPORTANT: Use this System 450 Series Control
Module with Relay Output only as an operating
control. Where failure or malfunction of the System
450 control module could lead to personal injury or
property damage to the controlled equipment or
other property, additional precautions must be
designed into the control system. Incorporate and
maintain other devices, such as supervisory or
alarm systems or safety or limit controls, intended to
warn of or protect against failure or malfunction of
the System 450 control module.
System 450 is a family of modular, digital electronic
controls that is easily assembled and set up to provide
reliable temperature, pressure, and humidity control for
a wide variety of Heating, Air Conditioning, Ventilation,
and Refrigeration (HVACR) and commercial/industrial
process applications.
The System 450 control modules allow you to
configure custom application-specific control systems
with up to three input sensors and ten (relay and/or
analog) outputs, including control systems that can
monitor and control temperature, pressure, and
humidity applications simultaneously.
You can easily install and quickly configure a
stand-alone System 450 control module and sensor in
the field as a replacement control for almost any
temperature, pressure, and humidity control.
C450CxN-1 models are Single-Pole, Double-Throw
(SPDT) relay control modules with Liquid Crystal
Display (LCD) and four-button touch pad User Interface
(UI) that allows you to set up a System 450 control
system. C450CBN-1 models provide one SPDT relay,
C450CCN-1 models provide two SPDT relays.
Refer to the System 450 Series Technical Bulletin
(LIT-12011459) for more detailed information on
designing, installing, setting up, and troubleshooting
System 450 Series control systems. The System 450
technical bulletin can be accessed and downloaded on
the Johnson Controls® Online Product Litera tu re Web
site at the following Web address:
http://cgproducts.johnsoncontrols.com/default.aspx
13
(1/2)
(3/16)
(Four)
61
61
(2-3/8)
Installation
Location Considerations
Observe the following System 450 location guidelines:
• Ensure that the mounting surface can support the
module assembly, mounting hardware, and any
(user-supplied) panel or enclosure.
• Mount the modules upright and plugged together in
a horizontal row where possible (Figure 3). DIN rail
mounting is highly recommended.
• Mount modules on flat even surfaces.
• Allow sufficient space for wires and connections.
• Mount the modules in locations free of corrosive
vapors and observe the ambient operating
conditions in the Technical Specifications
• Do not mount the modules on surfaces that are
prone to vibration or in locations where radio
frequency or electromagnetic emissions may
cause interference.
• Do not install the modules in airtight enclosures.
• Do not install heat-generating devices in an
enclosure with the modules that may cause the
temperature to exceed the ambient operating limit.
.
System 450™ Series Control Modules with Relay Outputs Installation Instructions 1
Mounting
!
Figure 2: C450CxN-1 Wiring Terminals Terminals
C
5V
C
C
are interna lly
connected.
LNC1
LNO1
LC1
Normally Closed/Off
Position
Connector
terminal block labeled
LNC2, LNO2, and LC2.
FIG:sys450_rly_cntrl_wir
Note:
not
relay and do supply any pow er to the applicat i on.
Supply Power and
Control Sensor Terminals
Low Voltage (< 30 V)
Dry-Contact, Line-Voltage
Relay Output Terminals
(See
for Electrical Ratings.)
Technical Spe c i fications
Mount System 450 modules on 35 mm DIN rail
(recommended) or directly to an even wall surface. To
mount modules on DIN rail:
1. Provide a section of 35 mm DIN rail that is longer
than the module assembly width, and mount the
DIN rail horizontally in a suitable location using
appropriate mounting hardware/fasteners.
IMPORTANT: Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
IMPORTANT: Do not exceed the System 450
module electrical ratings. Exceeding module
electrical ratings can result in permanent da mage to
the modules and void any warranty.
2. Clip the control module on the rail, position the
upper DIN rail clips on the top rail, and gently snap
the lower clips onto the rail.
3. Clip the remaining power and/or expansion
modules to the right of the control module on to the
DIN rail and plug the 6-pin module connectors
together (Figure 3).
Note: If your System 450 control system uses a
power module, the power module must be plugged
into the right-hand side of the control module.
To direct-mount modules to wall surfaces:
1. Plug the modules together, remove the module
covers, place the assembly against wall surface
horizontally in a suitable location and mark the
mount hole locations on the surface (Figure 1).
2. Install appropriate screw fasteners, leaving screw
heads approximately one to two turns away from
flush to the surface.
3. Place the assembly over screw heads on the
mounting slots, and carefully tighten the mounting
screws.
Note: If you mount the modules on an uneven
surface, do not damage the housings when
tightening mounting screws. Use shims/washers to
mount module assembly evenly on the surface.
Refer to the control sensor installation instructions for
information on locating and mounting control sensors.
Wiring
See Figure 2 and Table 1 for electrical termination
locations and wiring information. See Technical
Specifications on page 12 for electrical ratings.
IMPORTANT: Do not connect 24 VAC supply
power to the System 450 modules before finishing
wiring and checking all wiring connections. Short
circuits or improperly connected wires can result in
damage to the modules and void any warranty.
IMPORTANT: Run all low-voltage wiring and
cables separate from all high-voltage wiring.
Shielded cable is strongly recommended for input
(sensor) and analog output cables that are exposed
to high electromagnetic or radio frequency noise.
24V
Sn1
Common terminals (C)
6-Pin Module
Some models have a
second output relay and
Internal
SPDT Relay
Sn2
Sn3
WARNING: Risk of Electric Shock.
Disconnect or isolate all power supplies
before making electrical connections.
More than one disconnect or isolation
may be required to completely
de-energize equipment. Contact with
components carrying hazardous voltage
can cause electric shock and may result
in severe personal injury or death.
System 450™ Series Control Modules with Relay Outputs Installation Instructions2
The relay output terminals connect to an internal SPDT
Figure 3: Example System 450 Heat/Cool System with Condenser Fan Speed Control
L2
L1
L2
L1
0-10 VDC or
4-20 mA
Signal
L1 L2
Sn-1
Sn-2
Sn-3
Active/ P assive Sens or Jumpers
Analog Output
COM
AO2
AO1
Note:
In 120 VAC app li c ations, L1 mu st be the Hot lead
and L2 must be the Neutral/Common lead.
Table 1: System 450 Terminal Wiring Information
Label Terminal Function Wire Sizes
24V Accepts 24 V AC supply power , when a C450YNN power module is not connected,
and provides power terminal for 24 VAC (humidity) sensors.
5V Provides 5 VDC power for active sensors.
Sn-1, Sn-2,
Sn-3
Accepts passive or active (0-5 VDC) input signals from sensors.
Note: You must position the Active/Passive Sensor Jumper (Figure 3 and
Figure 6) correctly for each sensor in your control system before operating the
C
(Three
Terminals)
system. See Setting Active/Passive Sensor Jumpers
Provide low-voltage Common connections for 24 VAC power and passive or active
sensors connected to the 5V, Sn1, Sn2, and Sn3 terminals.
Note: The three C terminals are connected internally and can be connected to
for more information.
ground in the field.
LNC1, LNC2 Connects control circuit to the Normally Close (NC) contact on the SPDT relay.
LNO1, LNO2 Connects control circuit to the Normally Open (NO) contact on the SPDT relay.
LC1, LC2
Connects line (power) to Common (C) on the SPDT
1
relay.
0.08 mm
28 AWG to 16 AWG
0.08 mm
28 AWG to 14 AWG
FIG:sys450_app_exmpl
2
to 1.5 mm
2
to 2.5 mm
2
2
1. See Internal SPDT Relay insert in Figure 2 for more System 450 relay contact and terminal information. See T echnical
Specifications for SPDT relay electrical ratings.
System 450™ Series Control Modules with Relay Outputs Installation Instructions 3
Figure 4: System 450 Control Module Output Relay LEDs, LCD, Four-Button Touch Pad User Interface
Output Number:
value that identifies the Output associated
with the Status or Setup Value shown
on the scr een. Output N umbers are
automa tically determi ned by the ou tp ut s'
physical positions (left to right) in the
module assembl y. (Here, 4 = Output 4.)
Control Ramp Icon:
Displays whether an
Analog Output (only) is set as direct-acting
or reverse acting, a nd w hether the out put
signal st r ength is at minimum or maximum
when the sensed property is at Setpoint.
The Contr o l Ram p i c on displ ay e d i s
determined by the Output's SP , EP, OS P,
and OEP setup values.
Menu Button:
Press to move through the
sensor and output setup start screens.
When moving through the status or setup
screens, press to return to the status start
screen or set up start screen.
M
M
Status or Setup Id entifier:
or
OSP
Displays the
unit of me asurement, output, sensor numbe r,
setup para meter for the di splayed Sta t us or
Setup Value. (Here, the Setup Identifier
represents % Output at Setpoint.)
Up and Down Buttons:
Press or to select
a differ ent value for any flashing value in the
Setup Value field. In the Main/Default (Sensor
Status) sc r een, press and hold both and
for 5 seconds to access the Setup Star t s cr eens.
Status or Setup Value:
or
Displays th e current
input stat us, o utput statu s setup parameter
value for t he displayed input sensor, output
and/or set up parameter. select
a different Parameter Value when the value
is flashing. (Here, 1 00 = 100%.)
Press or to
M
Green LE D s
associ at ed Relay Output is On or Of f .
the (flashing) Setup Value and go to the
next setu p scr een.
100
OSP
4
Figure 5: Active/Passive Sensor Terminal Pin
Block Set up for Example in Figure 3
Sensor 2:
(or removed) sets Sn-1 to Active (Pressure).
Jumper positioned across two
pins sets Sn-2 to Passive (Temperature).
Jumper positioned across two
pins sets Sn-3 to Passive (Temperature).
Sensor 3:
Sn-1
Sn-2
3
Sys450_jmprs
Light-Emitting Diode (LED):
on Relay C ontrol Mod ul e and Relay
Expansion Modules (only) indicates if the
Displays a numerical
FIG:sys450 cntrl_modul
Next Button:
press to scroll through the system status
screens. In a setup screen , pr es s to save
In the Main /Default screens,
Setup and Adjustments
System 450 Component Requirements
A System 450 control system consists of one control
module, one to three control sensor inputs, and one to
ten outputs that provide On/Off control and/or analog
control. Figure 3 shows an example System 450
module assembly with two input sensors and three
outputs (two relay outputs and one analog output).
Setting up a System 450 Module Assembly
To set up a System 450 module assembly:
You can now set up your control system in the
System 450 reset control module UI.
Note: After you power on your module assembly, you
can set up your control system in the control module UI
before wiring the sensors or outputs to your assembly.
Setting Active/Passive Sensor Jumpers
Before putting your System 450 reset control system
into operation, you must set up each sensor in your
system as either passive or active by positioning the
jumper on the terminal pins on the terminal block
located below the sensor terminal block. See Figure 3.
1. Determine the controlled conditions, sensor types,
and value ranges required for your application, and
select the appropriate System 450 sensor types.
Temperature sensors are p assive (2-wire ) sensors and
the corresponding jumpers must be positioned across
both pins. Humidity and pressure transducers are
2. Determine the number and type (relay or analog) of
outputs required to control your application, and
select the appropriate System 450 control module
and expansion modules to provide the outputs.
3. Assemble the control and expansion modules in
the proper order, starting with the control module
on the left.
Note: If you use a C450YNN-1 power module, it
must be plugged into the control module. Plug in
any expansion modules (for your control system) to
the right of the power module.
4. Apply supply power to the module assembly.
System 450™ Series Control Modules with Relay Outputs Installation Instructions4
active (3-wire) sensors and correspond in g ju m p er s
must be positioned on one pin (or removed
completely). Figure 5 shows the jumper positions for
the System 450 example shown in Figure 3.
Sn-
Sensor 1:
Jumper positioned on one pin
Setting up a Control System in User Interface
1
74
2
F
OUT
1
On
64
OUT
3
System 450 control modules have a back-lit LCD and a
four-button touch pad UI (Figure 4) that enable you to
set up your control system. To set up a control system
in the System 450 UI:
1. Build your control system module assembly and
connect it to power. See Setting up a System 450
Module Assembly on page 4.
Note: Ever
ON, the control module polls all of the modules to
identify output type (relay or analog) and assigns a
sequential output number (1 to 9 [0 = 10]) to each
output starting with the control module output on
the left. The output numbers identify each output’s
setup screens in the UI. (See Figure 4.)
2. Access the System 450 setup screens in the UI.
See Accessing the System 450 Setup Screens
page 6.
3. Set up the control system inputs in the UI. See
Setting up System 450 Sensors
y time a module assembly is powered
on
on page 6.
4. Set up the control system outputs in the UI. See
Setting up System 450 Outputs
IMPORTANT: Do not change the module positions
after a System 450 control system is set up in the UI.
System 450 control logic is set up in the UI according
to the Sensor Types, the o utput types, and the o utput
numbers. Changing modules or module positions in a
module assembly that is already set up in the UI, can
change the output numbers, output type s, an d the
setup values of the assembly outputs, which requires
setting up the outputs again.
Use the worksheet provided on page 14 to plan and
record the settings for your System 450 control system.
Viewing the Main and System Status Screens
After you install, wire, power on, and set up your control
system in the UI, the Main screens appear on the LCD.
During normal operation, the Main screens
automatically scroll through the current status of each
sensor in your control system. See Table 2 for more
information about the Main screens.
The System Status screens display the current status
of each input and output in your control system. In the
Main screen, press repeatedly to scroll through and
view all of the status screens in your control system.
See Table 2 for more information about the System
Status screens.
on page 8.
Table 2: System 450 Main Screens and Status Screens Informat ion and Procedures
LCD Screen Name, Description/Function, User Action, and Example
Main (Input Status) Screen: During normal operation, the Main screen automatically scrolls through the
232
PSI
current status at each input sensor in your control system and displays the sensor number, the unit of
measurement, and the sensed condition value. See Figure 7.
Note: Main screens are view-only; selections are not made in Main screens.
Press
in your control system.
Press and hold
Note: In any system setup screen, you can return to the Main Screens by pressing both
simultaneously. Also, the UI returns to the Main screen after 2 minutes of inactivity in any screen.
Screen examples show Sensor 1 sensing 232 psi and Sensor 2 sensing 74°F.
System Status Screens: The System Status screens display current status of all inputs and outputs in
your control system. Relay output status screens display output number and relay status (On/Off). Analog
output status screens display output number, signal strength, and control ramp icon. See Figure 7.
Note: System Status screens are view-only; selections are not made in Status screens.
Press
control system.
Screen examples show Output 1 relay is On and Output 3 signal strength is 64% of the total signal
strength. The control ramp icon in the bottom screen example indicates that the Analog Output is set up
with SP<EP and OSP<OEP. See Setting up an Analog Output (OUTA
icons.
repeatedly to scroll through and view the System Status screens for all inputs and outputs
and for 5 seconds to access your control system’s setup screens.
repeatedly to scroll and view the System Status screens for the inputs and outputs in your
x) for information about control ramp
and
System 450™ Series Control Modules with Relay Outputs Installation Instructions 5
Accessing the System 450 Setup Screens
You can access the System 450 setup screens from
the Main screen. To access the System 450 setup
screens:
1. Apply power to your module assembly. After a start
up check, the Main screen appears on the LCD.
2. In the Main screen, press and hold
and
simultaneously for 5 seconds to access the setup
screens and to go to the Sensor Setup Start
screen.
Note: The Sensor Setup Start screen is the first
screen displayed when you access the System 450
setup screens. From the Sensor Setup Start
screen, you can navigate to all of the remaining
setup screens for your control system.
3. Press
M
repeatedly to scroll through the Setup
Start screens. See Figure 7.
Note: The Setup Start screens are view-only;
selections cannot be made in Setup Start screens.
In any Setup Start screen, you can return to the
Main screens by pressing and simultaneously .
Also, the UI returns to the Main screens after 2
minutes of inactivity in any screen in the UI.
Setting up System 450 Sensors
You must set up the input sensors for your control
system before you can set up any of outputs. To set up
the input sensors you must access the setup screens.
See Accessing the System 450 Setup Screens
.
The Sensor Setup Start screen is the first screen
displayed when you access the system setup screens
in the System 450 UI.
Table 3 provides information about System 450
sensors, Sensor Types, parameter values, and
specified sensor/transducer product code numbers.
T abl e 4 provides sensor setup information, procedures,
and example screens. Figure 7 provides a System 450
UI and setup overview example. Figure 7 on page 14
provides a System 450 UI screen flowchart example.
.
Table 3: System 450 Sensor Types, Setup Values, and Sensor/Transducer Product Codes
Sensor
Type
Unit of Measurement
Value
(Condition/Units)
Effective
Sensing
Range
Range of
Usable
Values
Resolution
Increment
Value
Minimum
Differential
or
Sensor Product
Type Number
Proportional
Band
°F °F (Temperature/degrees) -46 to 255 -40 to 250 1 1 A99B-xxx
°C °C (Temperature/degrees) -43 to 124 -40 to 121 0.5 0.5 A99B-xxx
rH % (Humidity/%RH) 1 to 100 10 to 95 1 2 HE-67Sx-xxxxx
P 05 INWC (Pressure/in. W.C.) 0 to 0.5 0.025 to 0.5 0.005 0.025 DPT2650-0R5D-AB
P 8 bAR (Pressure/bar) -1 to 8 -1 to 8 0.05 0.1 P499Rxx-401C
P 10 INWC (Pressure/in. W.C.) 0 to 10 0.5 to 10 0.05 0.2 DPT2650-10D-AB
P 15 bAR (Pressure/bar) -1 to 15 -1 to 15 0.1 0.2 P499Rxx-402C
P 30 bAR (Pressure/bar) 0 to 30 0 to 30 0.1 0.4 P499Rxx-404C
P 50 bAR (Pressure/bar) 0 to 50 0 to 50 0.2 0.4 P499Rxx-405C
P100 PSI (Pressure/psi) 0 to 100 0 to 100 0.5 1 P499Rxx-101C
P200 PSI (Pressure/psi) 0 to 200 0 to 200 1 1 P499Rxx-102C
P500 PSI (Pressure/psi) 0 to 500 90 to 500 1 5 P499Rxx-105C
P750 PSI (Pressure/psi) 0 to 750 150 to 750 2 6 P499Rxx-107C
1. Refer to the System 450 Series Modular Controls Product Bulletin (LIT-12011458), Catalog Page (LIT-1900549), or
Technical Bulletin (LIT-12011459) for compl ete ordering information for System 450 compatible sensors and transducers.
1
System 450™ Series Control Modules with Relay Outputs Installation Instructions6
Table 4: System 450 Sensor Setup Information and Procedures
SENS
-- -
P500
Sn-1
°F
Sn-2
--
Sn-3
-3
OFFS
SENS
-- -
LCD Screen Name, Description/Function, User Action, and Example
Sensor Setup Start Screen: The Sensor Setup Start screen is the first screen displayed when you
access the System 450 setup screens. From the Sensor Setup Start screen you can navigate to the
Output Setup Start screens or the Sensor Setup screens. See Figure 7.
Note: You must setup the input sensors before you can setup the control system outputs. The Sensor
Setup Start screen is view-only; selections are not made in Setup Start screens.
M
Press (repeatedly) to scroll through the Outpu t Setup Start screens. (See Setting up a Relay
Output (OUTRx) and Setting up an Analog Output (OUTAx) for information and procedures on setting
up outputs.)
1. Press to go to the first Sensor Type Selection screen (Sn-1) and begin setting up the
sensors in your control system.
Screen example shows the Sensors Setup Start screen with four flashing dashes.
Sensor Type Selection Screens: The Sensor Type you select for an input sensor automatically
determines the setup parameters and values for each output that is set up to reference that sensor . See
Table 3 for information about System 450 sensors/transducers, Sensor Types, condition type, units of
measurement, minimum differential or proportional band, setup values, value ranges, and product code
numbers.
Note: For an output to operate properly, the selected Sensor Type must match the sensor/transduce r
model wired to the control module, and the sensor/transducer must be wired to the proper control module
input terminals.
2. In the Sn-1 Sensor Ty pe Selection screen, press or to select the desired Sensor Type.
Press
3. In the Sn-2 Sensor Ty pe Selection screen, press or to select the desired Sensor Type.
Press
Note: If your control system does not use three input sensors, simply press
flashing in a Sensor Type Selection screen to save no Sensor Type and go to the next setup screen.
4. In the Sn-3 Sensor Ty pe Selection screen, press or to select the desired Sensor Type.
Press
• go to the Temperature Offset Setup screen for the first temperature sensor in your system.
• return to the Sensor Setup-Start Screen, if your control system has no temperature sensors.
Screen examples show Sn-1 with the P500 Sensor Type selected; Sn-2 with the °F Sensor Type
selected; and Sn-3 with the no Sensor Type selected.
T emperature Offset Selection Screens: Select a temperature offset for the temperature inputs (only) in
your control system.
2
Sensor Type °F enables an offset of +/- 5°F in 1 degree increments.
Sensor Type °C enables an offset of +/- 2.5°C in 0.5 degree increments.
Note: The temperature offset changes the displayed temperature value by the selected offset value.
5. Press or to select the desired temperature offset value. Press :
• to go to the next Temperature Offset Selection screen (if there are additional temperature
sensors in your control system) and repeat this step for each temperature sensor.
• to return to the Sensors Setup-Start Screen.
Screen example shows -3 (flashing) is the selected temperature offset value for Sensor 2, thus a sensed
temperature of 75°F at Sensor 2 is displayed as 72°F.
Sensors Setup Start Screen: The Sensor Setup screens return to the Sensor Setup Start screen.
After the sensors are set up for your control system, you can:
• Press to scroll through the Output Setup Start screens and begi n se tti ng up your system
outputs. (See Setting up a Relay Output (OUTR
more information and procedures.)
• Press and simultaneously and hold for 5 seconds to return to the Main screens.
Example shows Input Sensors Setup-Start screen with four flashing dashes.
to save your selection and go to the Sn-2 Sensor Type Selection screen.
to save your selection and go to the Sn-3 Sensor Type Selection screen.
to save your selection and either:
M
x) and Setting up an Analog Output (OUTAx) for
while the two dashes are
System 450™ Series Control Modules with Relay Outputs Installation Instructions 7
Setting up System 450 Outputs
OUTR
1
-- -
SENS
SENS
N
1
78
1
After you build and connect power to your control
system module assembly, the output numbers and
output types for your control system are auto m at ica lly
assigned in the UI.
Note: You must set up the input sensors for your
control system before you can set up the outputs.
To set up System 450 outputs in the UI:
1. Access the System 450 setup screens. (See
Accessing the System 450 Setup Screens
.) The
Sensor Setup Start screen appears.
M
2. At the Sensor Setup Start screen, press
3. For Relay Outputs, see Setting up a Relay Output
(OUTRx) and Table 5 for setup information and
procedures.
For Analog Outputs, see Setting up an Analog
Output (OUTAx) and Table 7 for setup information
and procedures.
Setting up a Relay Output (OUTR
A standard relay output provides On/Of f control for your
application based on a fixed setpoint sensor (Sn-1,
Sn-2, or Sn-3).
Table 5 provides information, procedures, and screen
examples for setting up standard relay outputs.
repeatedly to scroll through and select the desired
Output Setup Start screen. The Output Setup
Start screen indicates the output number and the
output type for the selected output.
Table 5: System 450 Relay Output Setup Screen Information and Procedures
LCD Screen Name, Description/Function, User Action, and Example
Relay Output Setup Star t Scr e en : The output number and the output type (relay or analog) are
automatically assigned when you connect power to the module assembly.
Note: You must set up the system’s sensors before you can set up the outputs.
--
Sn-2
1. Press
Screen example shows the Relay Output Setup-Start screen for Output 1.
Sensor Selection Screen: The sensor you select here determines this output’s setup parameters and
values, including condition type, unit of measurement, minimum differential, default setup values, and
setup value ranges for several of the remaining output setup screens. If a sensor is not selected, the
remaining output setup screens do not appear. If a sensor is already selected for this output, the Sensor
Selection screen does not appear here and the Relay ON Selection screen appears instead.
Note: You must select a sensor in this Sensor Selection screen and the selected sensor must be
already set up in the System 450 UI. (See Setting up System 450 Sensors
2. Press or to selec t the Sensor (Sn-1, Sn-2, or Sn-3) that this output references, then press
to go to this output’s Sensor Selection screen.
to save your sensor selection and go to the Relay ON Selection Screen.
Screen examples show the intial Relay Output 1 Sensor Selection screen with no sensor selected,
followed by the same screen with the (Master) Sensor 1 selected for Relay Output 1.
Relay ON Selection Screen: Select the value at which the relay turns On. Relay ON is defined as relay
LED On/Lit, relay contacts NO to C are closed, and NC to C contacts are open.
Note: The value ranges and minimum differential are determined by the Sensor Type selected for the
O
OFF
sensor that this output references and are enforced in the Relay ON and Relay OFF Selection screens.
3. Press or to select the value at which the output relay turns On, then press
selection and go to Relay OFF Selection Screen.
Screen example shows an ON value of 78 (°F) selected for Relay Output 1.
Relay OFF Selection Screen: Select the value at which the relay turns Off. Relay OFF is defined as
relay LED Off, relay contacts NC to C are closed, and NO to C contacts are open.
Note: The value ranges and minimum differential are determined by the Sensor Type selected for the
sensor that this output references and are enforced in the Relay ON and Relay OFF Selection screens.
4. Press or to select the value at which output relay turns Off, then press
selection and go to Minimum Relay ON TIme Selection Screen.
Screen example shows an OFF value of 75 (°F) selected for Relay Output 1.
x
)
.)
to save your
to save your
System 450™ Series Control Modules with Relay Outputs Installation Instructions8
Table 5: System 450 Relay Output Setup Screen Information and Procedures (Continued)
LCD Screen Name, Description/Function, User Action, and Example
Minimum Relay ON Time Selection Screen: Minimum ON T ime range is 0 to 300 seconds.
5. Press or to select the minimum time that the output relay remains On after reaching the
Relay ON value, then press
Selection Screen.
Screen example shows 0 (zero) seconds selected for the minimum ON-Time for Output 1.
Minimum Relay OFF Time Selection Screen: Minimum OFF Time range is 0 to 300 seconds.
6. Press or to select the minimum time that this output relay remains Off after reaching the
Relay OFF value. Press
screen.
Screen example shows 120 seconds selected for the minimum OFF-Time for Output 1.
Sensor Failure Mode Selection Screen: Select this output’s mode of operation if the referenced sensor
or sensor wiring fails. The output operates in the selected mode until the failure is remedied.
Sensor Failure mode selections for Relay Outputs include:
• ON output relay remains On during sensor failure.
• OFF output relay remains Off during sensor failure.
7. Press or to select this output mode of operation if the sensor or sensor wiring fails. Press
to save your selection and go to the Minimum Relay OFF Time
to save your selection and go to the Sensor Failure Mode Selection
ONT
120
OFFT
OFF
SNF
0
1
1
1
to save your sensor failure mode selection and go to the Edit Sensor Screen.
Screen example shows OFF sensor failure mode selected for Output 1. This output relay is Off if the
referenced sensor or sensor wiring fails.
Edit Sensor Screen: This screen displays the sensor that this output currently references. Typically, no
Sn-2
SENS
-- -
1
OUTR
action is taken in this screen. But if you need to change the sensor that this output references, you
can select a different sensor for this output in this screen.
Note: Changing the sensor that an output references to a sensor with a different Sensor Type changes
the default setup values for the output, and requires setting up the output again.
8. To change this output’s sensor, Press or to select the sensor that this output will
reference. After you select a different sensor for this output, press
Selection screen (Step 3 above) and repeat the output relay setup procedure for this output
and the new Sensor Type values associated with the new sensor selection.
If you do not need to change this output’s sensor, simply press
selection and return to the Relay Output Setup Start screen.
This Relay Output is now set up in the System 450 UI.
Screen example shows input Sensor 2 selected for Output 1 (Output 1 references Sensor 2).
Relay Output Setup Start Screen
After you have set up this Relay Output, you can go to another Output Setup Start screen, the Sensor
Setup Start screen, or return to the Main screens.
9. Press to scroll through the remaining Output Setup Start screens and return to the Sensor
Screen example shows the Relay Output Setup-Start screen for Output 1.
M
Setup Start screen, or press and simultaneously and hold for 5 seconds to return to the
System 450 Main screens.
to return to the Relay ON
to save the current sensor
Setting up an Analog Output (OUTAx)
An analog output provides an analog signal to control
your application based on a fixed setpoint sensor
(Sn-1, Sn-2, or Sn-3).
Analog outputs provide an auto-selecting a nalog signal
that is proportional to the sensed input condition. The
System 450 analog output senses the impedance of
the controlled equipment’s analog input circuit and
The control action between the input signal and the
output signal can be set up four different ways,
depending on the values selected for the Setpoint (SP),
End Point (EP), Percent Output Signal Strength at
Setpoint (OSP), and Percent Output Signal Strength at
End Point (OEP). The LCD displays different Control
Ramp icons for the four control actions.
automatically delivers either a 0–10 VDC or 4–20 mA
signal to the controlled equipment.
System 450™ Series Control Modules with Relay Outputs Installation Instructions 9
Figure 6 shows an example of the analog output setup
S
ystem Outpu
t
0%
100%
Less Greater
65
°F
10%
70
°F
SP > EP
SP = 70 ( )
EP = 65 ( )
OSP = 10 (%)
°F
°F
OSP < OEP
OEP
S
PEP
Proportional
Band
Fig:sys450_cntrl_rmp_exmpl
Figure 6: Control Ramp Example for a Typical
Heating Application (SP > EP and OSP < OEP)
P
r
o
p
o
r
t
i
o
n
B
a
n
d
OEP=100%
OSP=0%
F
P
r
o
p
o
r
t
i
o
n
a
l
B
a
n
d
OEP=100%
OSP=0%
OSP=100%
OEP=0%
OSP=100%
OEP=0%
P
r
o
p
o
r
t
i
o
n
a
l
B
a
n
d
values and the resulting output signal in a typical space
heating application (SP > EP and OSP < OEP).
Table 6 shows the four Control Ramp icons and the
associated analog output setup value relationships.
OEP = 10 0 ( % )
OSP
Condition Value
Table 6: Analog Output Control Ramp Icons
Control Ramp
Displayed on
LCD
Control Action Set the Analog Output Value
Relationships for the Desi red Control
Action and Corresponding Control
Ramp
SP < EP
OSP < OEP
Output Minimum at SP
l
a
Output Minimum at SP
SP > EP
Output Maximum at SP
SP < EP
Output Maximum at SP
System 450™ Series Control Modules with Relay Outputs Installation Instructions10
SP=50°F EP=60°
EP=50°F SP=60°F
l
a
n
o
i
t
r
d
o
n
p
a
o
r
B
P
EP=50°F SP=6 0°F
SP=50°F EP=60°F
SP > EP
OSP < OEP
OSP > OEP
OSP > OEP
See Table 7 for setup information, procedures, and
OUTA
3
-- -
SENS
3
Sn-1
3
200
3
250
OSP
3
10
OEP
3
90
I-C
3
0
screen examples for analog outputs.
Table 7: System 450 Analog Output Setup Screens Information (Part 1 of 2)
LCD Screen Name, Description/Function, User Action, Example
Analog Output Setup Start Screen: The output number and output type (relay or analog) are
automatically assigned when you connect power to your control system’s module assembly.
Note: You must set up the system’s sensors before you can set up the outputs.
SP
EP
1. Press
Screen example shows the Analog Output Setup-Start screen for Output 3.
Sensor Selection Screen: The sensor you select here determines this output’s setup parameters and
values, including condition type, unit of measurement, minimum proportional band, default setup values,
and setup value ranges for several of the remaining output setup screens. If a sensor is not selected here,
this output’s remaining setup screens do not appear. If a sensor is already selected for this output, the
Sensor Selection screen does not appear here, instead the Setpoint Selection screen appears.
Note: You must select a sensor in this Sensor Selection screen and the selected sensor must be already
set up in the System 450 UI. (See Setting up System 450 Sensors
2. Press or to select the Sensor (Sn-1, Sn-2, or Sn-3) that this output references. Press
save your sensor selection and go to the Setpoint Selection screen.
Screen example shows input Sensor 1 (Sn-1) selected for Output 3.
Setpoint Selection Screen: Setpoint is the target value that the controlled system drives towards and
along with End Point, defines this output’s proportional band.
Note: An output’s minimum proportional band (between Setpoint and End Point) is automatically
enforced in the output’s Setpoint and End Point Selection screens.
3. Press or to select this output’s Setpoint value. Press
selection and go to the End Point Selection screen.
Screen example shows a Setpoint of 200 (psi) selected for Output 3.
End Point Selection Screen: End Point is the (condition) value that the controlled system drives away
from (towards Setpoint) and, along with Setpoint, defines this output’s proportional band.
Note: An output’s proportional band (between Setpoint and End Point) is automatically enforced in the
output’s Setpoint and End Point Selection screens.
4. Press or to select this output’s End Point value. Press
selection and go to the %Output Signal Strength at Setpoint Selection screen.
Screen example shows a End Point of 250 (psi) selected for Output 3.
Output Signal Strength at Setpoint Selection Screen: Select the strength of the signal that this output
generates when the sensed condition is at the Setpoint value. The signal strength range is 0 to 100 (%).
5. Press or to select this output’s %Output Signal Strength at Setpoint value. Press
save your selection and go to the %Output Signal Strength at End Point Selection screen.
Screen example shows Analog Output 3 is setup to generate 10% of the total signal strength when the
input is at the Setpoint value (= 1 V or 5.6 mA).
Output Signal Strength at End Point Selection Screen: Select the strength of the signal that this output
generates when the sensed condition is at the End Point value. The signal strength range is
0 to 100 (%).
6. Press or to select this output’s %Output Signal Strength at End Point value. Press
save your selection and go to the Integration Con stant Selection screen.
Screen example shows Output 3 is set up to generate 90% of the total signal strength when the input is at
the End Point value (= 9 V or 18.4 mA).
Integration Constant Selection Screen: An integration constant allows you to set up proportional plus
integral control for this analog output. proportional plus integral control can drive the load cl oser to
Setpoint than proportional only control.
Note: Initially, you should select the I-C value of 0 (zero) for no integration constant. Refer to the System
450 Series Technical Bulletin (LIT-12011459) for more information on proportional plus integral control
and setting an integration constant in the System 450 UI.
7. Press or to select this output’s Integration Constant for proportional plus integral control.
Press
Screen example shows an Integration Constant of 0 (zero) selected for Output 3.
to go to this output’s Sensor Selection screen.
.)
to save your selection and go to the Sensor Failure Mode Selection screen.
to
to save your Setpoint value
to save your End Point value
to
to
System 450™ Series Control Modules with Relay Outputs Installation Instructions 11
Table 7: System 450 Analog Output Setup Screens Information (Part 2 of 2)
SNF
3
OFF
3
Sn-1
LCD Screen Name, Description/Function, User Action, Example
Sensor Failure Mode Selection Screen:
8. Press or to select this output’s mode of operation if the sensor or sensor wiring fails.
to save your selection and go to the Edit Sensor Selection screen.
to go to this output’s setup start screen.
SENS
Press
Y ou can select this output’s mode of operation in the event of a sensor or sensor wiring failure. The output
operates in the selected mode until the failure is fixed. Sensor Failure Mode selections for Analog Outputs
include:
• ON - output generates maximum signal strength during sensor failure.
• OFF- output generates minimum signal strength during sensor failure.
Screen example shows the OFF Sensor Failure Mode selected for Output 3.
Edit Sensor Selection Screen: Press or to change the sensor that this output references (only if
required), then press
Note: Changing the sensor that an output references to a sensor with a different Sensor Type changes
the default setup values for the output, and requires setting up the output again.
Screen example shows input Sensor 1 selected for Output 3.
Technical Specifications
C450CxN-1
Product C450CxN-1: System 450 Control Modules are sensing controls and operating controls
with LCD, four-button touch pad, and On/Off relay output.
C450CBN-1: Control Module with one SPDT output relay
C450CCN-1: Control Module with two SPDT output relays
Supply Power C450YNN-1 Power Supply Module or
24 (20-30) VAC Safety Extra-Low Voltage (SELV) (Europe) Class 2 (North America)
50/60 Hz, 10 VA minimum
Ambient Operating Conditions Temperature: -40 to 66°C (-40 to 150°F)
Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29°C (85°F)
Ambient Shipping and Storage
Conditions
Input Signal 0-5 VDC; 1035 ohms at 25°C (77°F) for an A99 PTC Temperature Sensor
Output Relay Contacts General: 1/2 HP at 120/240 VAC, SPDT
Analog Input Resolution: 14 bit
Control Construction In dependently-mounted control, surface mounted with Lexan® 950 enclosure suitable
Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)
Weight C450CBN-1: 209 gm (0.46 lb)
Compliance North America: cULus Listed; UL 60730, File E27734, Vol. 1; FCC Compliant to
T emperature: -40 to 80°C (-40 to 176°F)
Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29°C (85°F)
Specific: AC Motor Ratings 120 VAC 208/240 VAC
AC Full-load Amperes: 9.8 A 4.9 A
AC Locked-Rotor Amperes: 58.8 A 29.4 A
_____________________________________
10 Amperes AC Non-inductive at 24/240 VAC
Pilot Duty: 125 VA at 24/240 VAC
for DIN rail mounting or direct mounting to a hard, even surface.
C450CCN-1: 222 gm (0.49 lb)
CFR47, Part 15, Subpart B, Class B
Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits
Europe: Mark: CE Compliant; Low Voltage Directive (2006/95/EC); EMC Directive
(2004/108/EC); RoHS Directive (2002/95/EC); WEEE Directive (2002/96/EC)
Australia: Mark: C-T ick Compliant (N1813)
System 450™ Series Control Modules with Relay Outputs Installation Instructions12
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult Johnson Controls Application Engineering at (414) 524-5535. Johnson Controls, Inc. shall not be liable for damages
resulting from misapplication or misuse of its products.
United States Emissions Compliance
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Canadian Emissions Compliance
This Class (B) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la Classe (B) respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
System 450™ Series Control Modules with Relay Outputs Installation Instructions 13
Figure 7: System 450 Status Screens, Setup Screens, and Menu Flow Example
Relay Output
Setup Start
OUTR
1
-- -
Sensor 2 S elected.
(Displayed only whe n a
Sensor is selected.)
not
Up to
ten
Outputs
can be
connected
and
set up.
M
Relay
Output
1
OUTA
3
OutputAnalog
Setup Start
Analog
Output
3
Select Relay ON
Value
ON
1
78
Relay
at ºF
1ON
78
OFF
1
Select Relay OFF
Value
Relay
at ºF
1OFF
75
Select Mini
Relay ON
ONT
1
0
Relay
Seconds
(Minimum)
1ON
0
)
Select
Setpoin t Value
Prop. Band
SP
3
200
Analog Output
Prop. Band
Setpoint psi
3
200
Sele
End
Ana
End
FIG:menu_flw_chrt
M
232
PSI
1
Main Screen
Sensor 2 S tatus
74
2
F
Sensor 1 St at us
Up to ten Outp
can be set up
displayed.
Relay Output 2
Status
OFF
OUT
2
Output 2 Relay
OFF
Relay Output 1
Status
OUT
1
Output 1 Relay
On
Analog Output 3
Status
64
OUT
3
Output 3 Signal
at % of Range
64
Control Sensor 3
Status
----
3
Control Sensor 3
Not Set Up
Control Sensor 2
Status
74ºF
74
2
F
232
PSI
1
Control Sensor 1
Status
232 psi
Sensor Setup
Screens
System Status
Screens
Main Screens
(Sensor Status)
Relay Output
Setup Screens
Analog O utput
Setup Screens
M
Press and hold +
for 5 seconds to go to
the Setup Start screens.
Press to scroll through
Sensor Status screens and
Output S tatus scree ns.
Select
Control Sensor
Sn-2
SENS
SENS
Sensor Type
Setup Start
-- -
Select Sensor 2
Type
°F
Sensor Type
(-40 to 250ºF)
ºF
Select Sensor 3
Type
--
No
Sensor Type
Selected
Select Sensor 1
Type
P500
Sn-1
Sn-2 Sn-3
3
Select
Control Sensor
SENS
3
Sensor 1 Selected
(Displayed only
when a Sensor
is selected.)
not
Sn-1
)
Select
Te mperature (on
Offset Degree
-3
OFFS
During norm al operatio n, the display automatic
for all sensors s et up in the UI.
After a 2 min ut e pause in any set up or status s
Main (Sen sor Status) sc reens.
Press in any Setup screen to go to the asso
Press + simultaneously in any Setup Star
M
On
2
M
-- -
Output 2
Setup Start
Screen
3
Edit
Control Sensor
1
1
Sn-2
2
SENS
Sensor (Sn-2
Controls Relay
1
1OFF
Failure Mode
Select Sensor
uts
and
Edit
Contr ol Sensor
OFF
Relay
Failure Mode
ally scro lls through the S ensor Status screens
Main Screen
ciated Setup Start screen.
creen (below), the display returns to th e
t screen to return to the Main screen.
ly)
s
Select Sensor
Select Minimum
Relay OFF Time
mum
Time
SNF
1
120
OFFT
if Sensor 2 Fails
1OFF
Seconds
(Minimum
120
Relay
Select % Output
Constant Value
Select Integration
at End Point
Signal Value
Select % Output
at Setpoint
Signal Value
Point Value
ct Prop. Band
1
Sn-1
SENS
Sensor (Sn-1)
3
3
OFF
SNF
Analog Output
0
3
I-C
3
90
OEP
3
10
OSP
3
250
EP
Controls
if
OFF
3
Integration
No
Analog Output
90
of Range at
Output Signal %
10
of Range at
Output S ig nal %
3
log Output Prop. Band
Analog Out put
Sensor 1 Fails
Constant
Value
End Point
Value
Setpoint
250
Point psi
System 450™ Series Control Modules with Relay Outputs Installation Instructions14
System 450™ Series Control Modules with Relay Outputs Installation Instructions 15
System 450™ Series Control Modules with Relay Outputs Installation Instructions16
Johnson Controls/PENN® is a registered trademark of Johnson Controls, Inc.
All other marks herein are the marks of their respective owners. © 2010 Johnson Controls, Inc.
Building Efficiency
507 E. Michigan Street, Milwaukee, WI 53202
Published in U.S.A. www.johnsoncontrols.com
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