Johnson Controls System 450 Series Manuel d'exploitation et d'entretien

System 450™ Series Control Module with Ethernet Communications

Installation Instructions

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

Application

The System 450™ Series 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 HVACR and commercial and

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 or analog) outputs, including control systems that can monitor and control

temperature, pressure, and humidity applications simultaneously.

C450CEN-x control modules feature an LCD and four-button touchpad UI that allows you to set up a System 450

control system, and an RJ45 Ethernet network port that enables you to connect your control system to and

communicate across an Ethernet network.

The System 450 control module with Ethernet communications has an integral web server that supports browser

access. The web server can be configured to deliver System 450 web pages to client browsers and allows you to

monitor your control system status and change your control system configuration in simple, user-friendly web

pages.

Refer to the System 450™ Series Modular Control Systems with Communications Control Modules Technical

Bulletin (LIT-12011826) for detailed information on designing, installing, setting up, and troubleshooting System

450 Series control systems with network communications. The technical bulletin can be accessed and downloaded

on the Johnson Controls® QuickLIT website.

System 450 control modules with network communications also include the High Input-Signal Selection,

Differential Control, Output Signal Update Rate, and Output Signal Dead Band features.

IMPORTANT: Use this System 450™ Series Control Module with Ethernet Communications only as an

operating control. Where failure or malfunction of the System 450™ Series 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™

Series Control Module.

IMPORTANT: Utiliser ce System 450™ Series Control Module with Ethernet Communications uniquement en

tant que dispositif de régulation. Lorsqu'une défaillance ou un dysfonctionnement du System 450™ Series

Control Module risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre

équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires.

Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou

d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en

cas de défaillance ou de dysfonctionnement du System 450™ Series Control Module.

System 450™ Series Control Module with Ethernet

Communications

Installation Instructions

C450CEN-1 Part No. 24-7664-2934, Rev. F

Issued May 2017

System 450™ Series Control Module with Ethernet Communications Installation Instructions

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 hard, even surfaces.

• Allow sufficient space for wires and connections.

• Mount the modules in locations free of corrosive vapors and observe the ambient operating conditions listed 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 the modules in an enclosure with heat-generating devices that may cause the

temperature to exceed the ambient operating limit.

Mounting

You can 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 the appropriate mounting hardware.

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 modules to the right of the control module onto the DIN rail, and plug the 6-pin module

connectors together (Figure 3).

(2-1/2)

FIG:new_enclosure_dims

1/2 in. Conduit Hole

(Nominal Trade Size)

35 mm

DIN Rail

Mount

Channel

(2-1/2)

(1-9/16)

128

(5)

(1/2)

(2-15/16)

(1-1/2)

Figure 1: System 450 Module

Dimensions, mm (in.)

System 450™ Series Control Module with Ethernet Communications Installation Instructions

Note: If your System 450 control system uses a power module, the power module must be plugged into the

right side of the control module.

To direct-mount modules to walls and other flat surfaces using the four keyhole slots:

1. Plug the modules together, remove the module covers, place the module assembly horizontally against the

wall surface in a suitable location, and mark the mount hole locations on the mounting surface (Figure 1).

Note: The four keyhole slots on the communications control module are not accessible from the front (even

with the cover removed). Use another System 450 module to mark the communications module mounting hole

locations on the mounting surface.

2. Install appropriate screws or fasteners, leaving the screw heads approximately one to two turns away from

flush to the surface.

3. Position the assembly mounting slots over the screw heads, and then carefully tighten the mounting screws to

secure the assembly to the surface.

Notes:

• The mounting screws on a communications module cannot be accessed or tightened after the module is

attached to the screws. The enclosure has a ramp molded into the keyhole slots, which allows you to

mount the module on the screw heads.

• If you mount the modules on an uneven surface, use shims or washers to mount module assembly evenly

on the surface.

Refer to the input 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 52 for electrical ratings.

Risk of Electric Shock.

Disconnect or isolate all power supplies before making electrical connections. More than one disconnection 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.

Risque de décharge électrique.

Débrancher ou isoler toute alimentation avant de réaliser un branchement électrique. Plusieurs isolations et

débranchements sont peut-être nécessaires pour -couper entièrement l'alimentation de l'équipement. Tout contact

avec des composants conducteurs de tensions dangereuses risque d'entraîner une décharge électrique et de

provoquer des blessures graves, voire mortelles.

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 damage to the modules and void any warranty.

System 450™ Series Control Module with Ethernet Communications Installation Instructions

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.

IMPORTANT: Electrostatic discharge can damage System 450 modules. Use proper Electrostatic Discharge

(ESD) precautions during installation and servicing to avoid damaging System 450 modules.

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: A System 450 control module and module assembly can be connected to an internal power

source (a System 450 power module) or an external power source (24 V power connected to the 24V and COM

terminals on the control module), but must not be connected to both power sources simultaneously. Connecting

a control module to both internal and external power sources can damage the modules and void any warranty.

IMPORTANT: When connecting System 450 compatible sensors with shielded cable to a System 450 control

module, connect the cable shield drain lead to one of the C (common) terminals on the input sensor terminal

block. Do not connect the shield at any other point along the cable. Isolate and insulate the shield drain at the

sensor end of the cable. Connecting a cable shield at more than one point can enable transient currents to flow

through the sensor cable shield, which can cause erratic control operation.

System 450™ Series Control Module with Ethernet Communications Installation Instructions

Table 1: System 450 Control Module with Ethernet Communications Wiring Information

Terminal

Block Label Function, Electrical Ratings, and Requirements Recommended Cable

Type and Wire Sizes

Low-

Voltage

and Input

Sensors

Terminal

Block

24V Provides internal 24 VAC power at terminals for (humidity)

sensors when a C450YNN power module is connected in the

control system module assembly.

Accepts external 24 VAC (20–30 VAC) supply power for the

control system when a C450YNN power module is not

connected in the control system module assembly.

0.08 mm2to 1.5 mm2

28 AWG to 16 AWG

COM Provides the common connection for 24 VAC power terminal for

either internally or externally supplied 24 VAC power (only).

S1, S2, S3 Accepts passive or active (0–5 VDC) input signals from control

sensors1.

1. For sensor wire runs greater than 50 ft (15.2 m) or where the sensor wiring is exposed to electromagnetic or radio

frequency interference, use shielded cable and connect the shield to a C (common) terminal on the control module.

0.08 mm2to 1.5 mm2

28 AWG to 16 AWG

C, C Provide low-voltage common connections for the sensors

connected to the 5V, Sn1, Sn2, or Sn3 terminals (only).

Note: The two Cterminals are used for sensor common

connections only. The two Cterminals are connected internally.

5V Provides 5 VDC power for active sensors.

Ethernet

Port Provides 8-Pin RJ45 modular jack for connecting to an Ethernet

network. CAT 5 Straight-Through or

Crossover Cable

(C450CEN-1)

System 450 Control Module

with Ethernet Communications

6-Pin

System 450

Bus Connector

RJ45

Ethernet

Port

Common terminals (C)

are internally

connected.

Low-Voltage

Input Sensors and

Supply Power Terminals

Figure 2: C450CEN-x Control Module with Ethernet Communications

Showing Wiring Terminals

System 450™ Series Control Module with Ethernet Communications Installation Instructions

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 or analog control. Figure 3 shows an example System 450 control system

module assembly, with two sensors and three outputs, connected to an Ethernet network.

Building a System 450 Module Assembly

To set up a System 450 module assembly:

1. Determine the controlled conditions, sensor types, and value ranges required for your application, and select

the appropriate System 450 sensor types.

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-1C power module, it must be plugged into the control module. Plug in any

expansion modules to the right of the power module.

4. Apply supply power to the module assembly.

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.

FIG:sys450_ethernet_app_example

C450CEN-x

Communications

Module

AO2

COM

AO1

C450YNN-1

Power

Module

C450SBN-x

Expansion Module

OUTR1

C450SQN-x

Expansion Module

OUTA2, OUTA3

A99 Temperature Sensor

Control Sensor in UI Display

( Sensor Type)

Sn-2 F°

P499 Pressure Transducer

Control Sensor in UI Display

( Sensor Type)

Sn-1 P500

RJ45

Ethernet

Port

Cooling Equipment

Control Circuit

(24 to 240 VAC)

Condenser Fan 2

Speed Control

Analog Input Circuit

Condenser Fan 1

Speed Control

Analog Input Circuit

Figure 3: Example System 450 Control System with an Ethernet Communications Module

Controlling a Cooling System with Condenser Fan Speed Control

System 450™ Series Control Module with Ethernet Communications Installation Instructions

Table 2: System 450 Control Module Output Analog LEDs, LCD, Four-Button Touchpad User Interface

Callout Feature Description

1 Status or Setup

Value Displays the current input status, output status, or setup parameter value for

the displayed input sensor, output, or setup parameter. Press or to

select a different parameter value when the value is flashing (100 = 100%).

2 LED Green LEDs on Relay Control Module and Relay Expansion Modules (only)

indicate if the associated relay output is on or off.

3 Output Number Displays a numerical value that identifies the output associated with the

status or setup value shown on the screen. Output numbers are

automatically determined by the outputs' physical positions (left to right) in

the module assembly (4 = Output 4).

4 Control Ramp Icon Displays whether an analog output (only) is set as direct-acting or reverse-

acting, and whether the output signal strength is at minimum or maximum

when the sensed property is at Setpoint. The control ramp icon displayed is

determined by the output's SP, EP, OSP, and OEP setup values.

5 Next Button In the Main screens, press to scroll through the system status screens. In

a setup screen, press to save the (flashing) setup value and go to the

next setup screen.

6 Up and Down

Buttons Press or to select a different value for any flashing value in the setup

value field. In the Main (sensor status) screens, press and hold both and

for 5 seconds to access the setup Start screens.

7 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 setup start screen.

8 Status or Setup

Identifier Displays the unit of measurement, output, sensor number, or setup

parameter for the displayed status or setup value. The setup identifier OSP

represents % output signal strength at setpoint.

9 LCD Backlit LCD screen. During normal operation, the LCD displays the Main

screens.

Figure 4: System 450 Communications Module LEDs, LCD, Four-Button Touchpad User Interface

System 450™ Series Control Module with Ethernet Communications Installation Instructions

Setting Up the Control System in the UI

System 450 control modules have a backlit LCD and a four-button touchpad 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 Building a System 450 Module

Assembly on page 6.

Note: Every time a module assembly is powered 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 Start Screens on page

3. Set up the control system inputs in the UI. See Setting Up System 450 Sensors on page 10.

4. Set up the control system outputs in the UI. See Setting Up System 450 Outputs on page 16.

Viewing the Startup, Main, and System Status Screens

Every time you connect power to a System 450 control module, the Startup screen appears for several seconds

before the Main screens appear. The Startup screen displays the current firmware version for the module. See

Table 3 and System 450 Firmware Versions for more information.

After you install, wire, power on, and set up your control system in the UI, the Main screens appear on the LCD,

immediately after the Startup screen. During normal operation, the Main screens automatically scroll through the

current status of each sensor in your control system. See Table 3 for more information.

The System Status screens display the current status of each input and output in your control system. With the

Main screen displayed, press repeatedly to scroll through and view all of the status screens in your control

system. See Table 3 for more information about the System Status screens.

System 450 Firmware Versions

System 450 firmware versions identify the features available on System 450 modules. System 450 control modules

with network communications have the High Input-Signal Selection and Differential Control features. See High

Input-Signal Selection and Differential Control on page 15 for more information.

Accessing the System 450 Setup Start Screens

Access the System 450 Setup Start screens from the Main screen. See Table 3 for more information about the

Setup Start screens.

To access the System 450 setup screens:

1. Apply power to your module assembly. After the Startup screen appears briefly (displaying the control module

firmware version), 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 go

to the Sensor Setup Start screen.

3. Press repeatedly to scroll through the Output Setup Start screens. See Figure 6.

Note: The UI returns to the Main screens after 2 minutes of inactivity in any screen in the UI.

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 output types, and the output

numbers. Changing modules or module positions in a module assembly that is already set up in the UI can

change the output numbers, output types, and the setup values of the assembly outputs, which requires setting

up the outputs again.

System 450™ Series Control Module with Ethernet Communications Installation Instructions

Table 3: System 450 Startup Screen, Main Screens, Status Screens, and Setup Start Screens Information

and Procedures (Part 1 of 2)

LCD Screen Name, Description or Function, User Action, and Example

Startup Screen: When you power a System 450 control module, the LCD displays the control module’s

current firmware version for approximately 5 seconds before it displays the Main (Input Status) screen.

The screen example shows System 450 firmware version number 2.00 on the top of the screen. The

number on the bottom of the screen (indicated in this example with xxxx) identifies the Johnson Controls

firmware.

Main (Input Status) Screens: During normal operation, the Main screens automatically scroll through the

current status of each input sensor in your control system and display the sensor number, the unit of

measurement, and the sensed condition value. See Figure 6 for an example of the Main screens.

Note: Main screens are view-only; selections are not made in Main screens. The Main screens are the

System 450 default screens. After 2 minutes of inactivity in any screen, the UI reverts to the Main screens.

While the Main screens are scrolling, you can press repeatedly to scroll through and view the System

Status screens for all inputs and outputs in your control system.

While the Main Screens are scrolling, you can press and hold and for 5 seconds to access your

control system’s Setup Start screens. But if the System 450 User password is set to a value other than

factory-default value of 0000, the Password Protected Access screen appears and requires you to enter

either the valid User password or valid Admin password to proceed to the Sensor Setup Start screen and

the rest of the System 450 setup screens.

The top two screen examples show Sensor 1 sensing 232 psi and Sensor 2 sensing 74°F. The third

screen example shows a Temperature Differential Sensor sensing a -4 degree differential. The bottom

screen shows Sensor 3 set up as a Binary Input and the input is open.

System Status Screens: The System Status screens display current status of all inputs and outputs in your

control system. System Status screens are view-only; selections are not made in Status screens. Relay

output status screens display output number and relay status (On/Off). Analog output status screens

display output number, output signal strength (as a percentage of the total signal strength), and a control

ramp icon, which indicate the output’s control action.

Press repeatedly to scroll and view the System Status screens for the inputs and outputs in your control

system. When you stop pressing ,the displayed Status screen refreshes its value and remains displayed

for 2 minutes before returning to the Main Screens.

The screen examples show Output 1 relay is On and Output 3 signal strength is 61% 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 for information about ramp icons.

dIFT

bin

System 450™ Series Control Module with Ethernet Communications Installation Instructions

Setting Up System 450 Sensors

You must set up the input sensors for your control system before you can set up any of the outputs. To set up the

input sensors you must access the setup screens. See Accessing the System 450 Setup Start Screens.

The Sensor Setup Start screen is the first screen displayed when you access the system setup screens.

Password Protected Access Screen: When Password Protection is enabled, the Password Protected

Access screen appears after you press and hold and for 5 seconds to access your control system’s

Setup Start screens. If the User password is set to the factory-default value of 0000, password protection is

disabled, and the Password Protected Access screen does not appear; the Sensor Setup Start screen

appears. See Setting Up Password Protection on page 26 for more information on System 450 password

protection.

Setup Start Screens: Setup Start screens are view-only screens, from which you can access the setup

screens for the sensors or the displayed output; selections are not made in Setup Start screens. The

Sensor Setup Start screen is the first screen displayed when you access the System 450 setup screens.

Note: The numerical order and type of Output Setup Start screens are determined by the modules

selected for your System 450 control system and their physical order in the control system module

assembly. See Setting Up the Control System in the UI on page 8 for more information.

From the Sensor Setup Start screen, press repeatedly to scroll through the Output Setup Start screens

for all of the outputs in your control system. When a Setup Start screen appears, press to go to the setup

screens for the sensors or the output displayed in the screen.

Note: In any Setup Start screen, you can return to the Main screens by pressing both and

simultaneously. Also, the UI returns to the Main screen after 2 minutes of inactivity in any screen.

The screen examples show the Sensor, Relay Output 1, Analog Output 3, Communications, User

Password, and Administrator Password Setup Start screens.

Table 3: System 450 Startup Screen, Main Screens, Status Screens, and Setup Start Screens Information

and Procedures (Part 2 of 2)

LCD Screen Name, Description or Function, User Action, and Example

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