Johnson Controls Penn System 450 Series Technical Bulletin

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System 450™ Series Modular Control Systems with Standard Control Modules

Code No. LIT-12011459

Technical Bulletin

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

Document Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

System 450 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

System 450 Standard Control Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Control Modules and User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Expansion Modules, Module Assemblies, and Outputs . . . . . . . . . . . . . . . . . . . . . . . . 13

Module Assemblies, Output Types, and Output Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . 13

Hybrid Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

System 450 Compatible Sensors and Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

System 450 Sensors and Transducers for Standard Control Modules . . . . . . . . . . . . . . . . 16

Issued October 28, 2013

Supersedes July 24, 2012

Active and Passive Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

System 450 Functional Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Direct and Reverse Control Actions for Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Proportional Plus Integral Control and Integration Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

High Input Signal Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Differential Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Sensor Failure Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

System 450 Standard Control System Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Clean Room Control System Example with Temperature, Pressure, and Humidity Control 28

Solar Heating Control System Example Using Differential Control . . . . . . . . . . . . . . . . . . . 28

Hybrid Analog and High Input Signal Selection Control System Example. . . . . . . . . . . . . . 32

Detailed Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Designing and Building System 450 Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . 34

Technical Bulletin

1System 450™ Series Modular Control Systems with Standard Control Modules

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Selecting, Installing, and Setting Up Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Assembling System 450 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Installing System 450 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Locating System 450 Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Wiring System 450 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Wiring System 450 Sensors and Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Setting up a System 450 Standard Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Determining Output Numbers and Output Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

System 450 UI Navigation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Accessing and Navigating the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Viewing the System Status Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Accessing the System Setup Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Setting Up the Sensors and Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Setting up Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Setting up a Relay Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Setting up an Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Setting up a Pulse Region Hybrid Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Setting Up Outputs That Reference a P 110 Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Determining the Integration Constant for an Analog Output . . . . . . . . . . . . . . . . . . . . 56

Testing the Slowest to Fastest Time Integral to Determine I-C Setting . . . . . . . . . . . . . . . . 57

Using the Response Time to a Step Change to Determine the I-C Setting . . . . . . . . . . . . . . . . . 58

Troubleshooting System 450 Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Specified Voltage Ranges for Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Repair and Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

C450CPN-3C and C450CQN-3C Control Modules with Analog Output. . . . . . . . . . . . . 67

C450CPW-100C Control Module with Hybrid Analog Output . . . . . . . . . . . . . . . . . . . . 68

C450CBN-3C and C450CCN-3C Control Modules with Relay Output . . . . . . . . . . . . . . 69

C450SPN-1C and C450SQN-1C Expansion Modules with Analog Output . . . . . . . . . . 70

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin2

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C450SBN-3C and C450SCN-3C Expansion Modules with Relay Output . . . . . . . . . . . 71

C450YNN-1C Power Supply Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

System 450 Glossary of Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 3

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System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin4

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System 450™ Series Modular Control Systems with Standard Control Modules

Technical Bulletin

Document Introduction

This document describes System 450™ features and functions, and provides guidelines and instructions for designing, selecting, installing, setting up, and troubleshooting System 450 control systems that use System 450 standard control modules or the System 450 control module with Hybrid Analog Output (C450CBN-x, C450CCN-x, C450CPN-x, C450CQN-x, and C450CPW-100 models).

This document also provides information and instructions for selecting, installing, and setting up sensors, expansion modules, and the power module in your control systems with standard control modules or the hybrid analog control module.

This document also provides System 450 Technical Specifications on page 67 and references to System 450 Related Documentation.

In this document, control module refers to the System 450 standard control modules noted previously and the System 450 hybrid analog output control module. Hybrid analog output refers only to the System 450 hybrid analog output control module (C450CPW-100).

Note: For information regarding System 450 reset control modules

(C450RxN-x) and control systems that use reset control modules, refer to the System 450 Series Modular Control Systems with Reset Control Modules Technical Bulletin (LIT-12011842).

Note: For information regarding System 450 control modules with network

communications, refer to the System 450 Series Modular Control Systems

with Communications Control Modules Technical Bulletin (LIT-12011826).

System 450 Overview

The System 450 Series is a family of compact digital electronic control, expansion, and power modules that are easily assembled and set up to provide reliable on/off and proportional control of temperature, pressure, and humidity conditions in a wide variety of HVACR and commercial/industrial process applications.

The System 450 Series is designed to replace System 350 Series and System 27 Series control systems and provides more features and greater flexibility with far fewer model variations. Most System 350 and System 27 modules are designed for single condition applications (either temperature, pressure, or humidity) and cannot be configured to control multiple conditions with a single control system. Depending on the control module model used, a single System 450 control system can monitor and control both temperature and humidity, or temperature, pressure, and humidity simultaneously.

Note: System 450 modules are not compatible with System 350 or System 27

modules, but you can build all of the System 350 and System 27 control systems and many more with System 450 modules, usually with fewer modules.

The System 450 Series has several model variations; each module is designed to be multi-purpose, adaptable, and completely field configurable for temperature, pressure, and humidity applications. The System 450 Series allows you to build a wide range of inexpensive, compact, durable, and versatile custom control systems that allow you to monitor and control multiple control loops in your controlled system. A System 450 control system can monitor temperature, pressure, and humidity simultaneously and control up to ten outputs (analog outputs, relay outputs, or both) based on the monitored conditions.

Note: System 450 communications control modules, System 450 standard

control modules, and the System 450 control module with hybrid analog output can monitor and control temperature, pressure, and humidity

applications simultaneously. System 450 reset control modules can monitor and control temperature and humidity applications simultaneously.

A System 450 standard control system includes:

• a single System 450 standard control module, which provides the control system UI for setting up, monitoring, and controlling your system and the sensor wiring terminals for connecting the sensors to your control system.

• one to ten outputs provided by the control module and expansion modules. Each output provides either on/off control or a proportional analog signal (0 to 10 VDC or 4 to 20 mA) to the equipment in your controlled system.

• one to three sensors or transducers, which are hard-wired directly to the control module and provide input signals for monitoring and controlling your system equipment.

• an optional power module to provide power to the connected control module and expansion modules.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 7

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See Table 11 on page 62 for a list of System 450 modules that can be used in

Figure 1: System 450 Standard Control System Connected

as a Room Heating and Cooling Control System with

Condenser Fan Speed Control

* Connect cable shields at only one point to any “C” terminal on the Input Terminal Block.

standard and hybrid analog output control systems. Refer to the System 450 Series Modular Controls Product Bulletin (LIT-12011458) for a complete list and

description of the System 450 modules, compatible sensors and transducers, and accessories.

Figure 1 shows an example System 450 standard control system connected as a room heating and cooling control system with condenser fan speed control.

Figure 3 on page 12 shows the System 450 UI Main Screens, System Status screens, and System Setup Screens for the heating and cooling control system shown in Figure 1.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin8

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System 450 Standard Control Modules

A System 450 standard control system can provide the following types of control to your application equipment:

• On/Off Control, including multi-stage control for temperature, pressure, and humidity applications. (See Relay Outputs on page 18 for more information.)

• Proportional Analog Control, including multi-stage control for temperature, pressure, and humidity applications. (See Analog Outputs on page 20 for more information.)

• Combination of On/Off Relay and Analog Output Control, with up to 10 outputs per control system and any combination of relay and analog outputs.

• Multi-Stage Control (Relay or Analog) for temperature, pressure, and humidity applications.

• Multi-Purpose Control, including simultaneous control of temperature, pressure, and humidity conditions.

• Stand-Alone Control. A single standard control module can be quickly and easily configured to replace a wide variety of specialized controls in the field.

• Direct and Reverse Action Proportional Control. See Direct and Reverse Control Actions for Analog Outputs on page 20 for more information.

• Proportional Plus Integral Control. See Proportional Plus Integral Control and Integration Constants on page 23 for more information.

• High Input Signal Selection allows you to monitor a condition with two or three identical sensors at different locations in your controlled system and control system outputs according to the highest condition value sensed by the sensors. See High Input Signal Selection on page 24 for more information.

• Differential Control allows you to monitor and control a condition dif ferential in a controlled system; for example, the water pressure drop across an in-line water filter. See Differential Control on page 25 for more information.

• Hybrid Analog Output Control on C450CPW-100 control modules enables an analog VDC output to transition to a pulse output at low signal levels, providing more efficient low-speed control of Electronically Commutated (EC) motors in condenser fan applications. (See Hybrid Analog Output on page 14 for more information.)

Note: System 450 standard control modules do not include reset control,

real-time clock, setback scheduling control, or load balancing capabilities. These features are available on the System 450 reset control modules only. Refer to the System 450 Control Systems with Reset Control Modules T echnical Bulletin (LIT-12011842) for more information about reset control modules and reset control systems. Only the C450CPW-100 model provides a hybrid analog output for direct control of EC motors. See

Hybrid Analog Output

on page 14 for more information.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 9

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Control Modules and User Interface

Figure 2: System 450 Control Module with Analog Outputs Showing LCD and

Four-Button Touchpad User Interface

Output Number:

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. (Here, 4 = Output 4.)

Control Ramp Icon:

Displays whether an

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.

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.

Status or Setup Identifier:

OSP

Displays the

unit of measurement, output, sensor number,

setup parameter for the displayed stat us or setup value. (Here, the setup identifier represents % output signal strength at setpoint.)

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.

Status or Setup Value:

Displays the current input status, output status setup parameter value for the displayed input sensor, output and/or setup parameter. select a different parameter value when the value is flashing. (Here, 100 = 100%.)

Press or to

Expansion Modules indicate if the associated

output is partially on (between 0 an 10V), the LED blinks. The higher the output signal strength, the longer the LED is on.

In the Main screens,

the (flashing) setup value and go to the next setup screen.

Each System 450 standard control system requires a single control module. System 450 control modules have an LCD that enables you to set up and monitor your control system, along with a four-button touchpad for navigating the control system status and setup screens, and setting up the system parameters. Figure 2 shows a standard control module and describes the various features of the System 450 control system UI for standard control modules.

LED:

Green LEDs on Control Module and

relay or analog output is on or off. If the analog

100

value that identifies the output associated

Displays a numerical

OSP

analog output (only) is set as direct acting

FIG:sys450_comm_module_ui

Next Button:

press to scroll through the system status screens. In a setup screen, press to save

Standard System 450 control modules are available with one or two relay outputs or with one or two analog outputs and the standard System 450 firmware. See Table 11 on page 62 for model descriptions and System 450 Standard Control Modules on page 9 for more information.

The System 450 control module with hybrid analog output has a single analog output that can be configured as a hybrid analog output to optimize and extend the controlled speed range of variable speed EC motors. See Hybrid Analog Output page 14 for more information.

All System 450 control modules can control both relay outputs and analog outputs, regardless of the type of outputs that the control module has onboard. You set up all of the sensors and all of the outputs (relay and analog), including the expansion module outputs, in the control module UI. A standard control module can also be configured as a simple stand-alone control system when your application requires only one or two relay outputs, or one or two analog outputs.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin10

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During normal operation, the LCD displays the Main System 450 screens (Sensor Status screens), which automatically scroll through and display the status of the hardwired and functional sensors in your control system. You can also view the status of all the outputs in your control system and access the System Setup screens from the Main screens in the System 450 UI. See on page 40 for more information.

The System 450 System Status screens display the status of each output in the control system (in addition to the sensor status screens). A relay output status is displayed as On or OFF. See Relay Outputs on page 18 for more information. An analog output status is displayed as a percentage of the total output signal strength (0 to 100%). The analog output status screens also display an icon that indicates the control action of the output. See Analog Outputs on page 20 for more information.

The System Setup screens in the System 450 UI enable you to easily set up the system sensors and all of the system outputs for your control system. See on page 40 for more detailed procedures for setting up your control system.

Figure 3 illustrates the System 450 UI navigation paths, parameter designations, and values for the control system example (shown in Figure 1) using a System 450 standard control module. Figure 3 shows the Main screens (sensor status screens), the System Status screens, the System Setup screens, and the Output Setup screens for an example System 450 standard control application.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 11

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Figure 3: System 450 UI Menu Flow Chart Example Showing Navigation Paths and

Example Settings in the Main, System Status, Sensor Setup, and Output Setup Screens

for the Room Heating and Cooling Control System with Condenser Fan Speed Control

Application Shown in Figure 1

FIG:menu_flw_chrt

232

PSI

Main Screen

Sensor 2 Status

°F

Sensor 1 Status

Relay Output 2

Status

OFF

OUT

Output Relay

OFF

Relay Output 1

Status

OUT

Output Relay

Analog Output

Status

OUT

Output Signal

at % of Ran

Sensor 3

Statu s

– – – –

Sensor

Not Set Up

Sensor 2

Status

74ºF

at Sensor

232

PSI

Sensor 1

Status

232 psi

at Sensor

Sensor Setup

Screens

System Status

Screens

Main Screens

(Sensor Status)

Relay Output 1

Cooling

Equipment

Setup Screens

Press and hol d +

for 5 seconds to go to

the Setup St art screen s.

Press to scroll through

Sensor Status screens and

Output Status screens.

SENS

Sensor Type

Setup Start

Select Sensor 2

Type

°F

Sensor Type

(-40 to 250ºF)

ºF

Select Sensor 3

Typ e

Sensor Type

Selected

Select Se nsor 1

Typ e

P500

Sn-1

Sn-2 Sn-3

Select

Temperature (only)

Offset De grees

-3

OFFS

During normal operation, the display automati

for all sensors set up in the UI.

After a 2 minute pause in any setup or status

Main (Sensor Status) screens.

Press in any Setup screen to go to the ass

Press + simultaneously in any Setup Sta

°F

Relay Output

Setu p Star t

OUTR

Sensor 2

Selected for

Relay Output

Relay

Output

Select Relay ON

Val ue

Relay Output

at ºF

ON 78

OFF

Select Relay OFF

Val ue

Relay Output

at ºF

OFF 75

Select Minimum

Relay ON Time

ONT

Relay Output

Seconds

(Minimum)

ON 0

Select

Sensor

Sn-2

SENS

Up to ten

Outputs can

be connected

and set up.

OUTA

OutputAnalog

Setup Start

Analog

Output

Analog Output 3

Condenser

Fan Speed

Control

Setup Screens

Select

Sensor

SENS

Sensor 1

Selected for

Analog Output

Sn-1

Relay Output

Setup Start

OUTR

Sensor 2

Selected for

Relay Output

Relay

Output

Select Relay ON

Val ue

Relay Output

at ºF

ON 65

OFF

Select Relay O

Val ue

Relay Outp

OFF 7

Selec t

Sensor

Sn-2

SENS

Relay Output 2

Heating

Equipmen t

Setup Screens

Sn-2

OFF

120

SENS

SNF

OFFT

Sensor (Sn-2)

Relay Output

elay Output

Edit

Input Sensor

set up and displayed.

three Sensors can be

Up to ten Outputs and

The current status of each sensor and output is displayed.

cally scrolls through the Sensor Status screens

ociated Setup Start screen.

rt screen to return to autoscrolling through the Main screen s.

screen (below), the display returns to autoscrolling through the

Main Screen

Press to manua lly scroll thr ough the sensor and output status es.

Failure Mode

Select Sensor

lect MinimumRelay OFF Time

Controls

OFF

Seconds

F 120

Edit

Input Sensor

Relay Output

Failure Mode

Select Sensor

Sensor 2 Fails

(Minimum)

Select Minimum

Relay O FF Time

Relay ON Time

Select Minimum

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin12

Sn-2

OFF

SENS

SNF

OFFT

ONT

Sensor (Sn-2)

Relay Output

Controls Relay

OFF

Seconds

OFF 30

Seconds

ON 0

ºF

Sensor 2 Fails

(Minimum)

Select % Output

Edit

Select Sensor

Select Integration

Signal Value

Select Prop. Band

Prop. Band

Select

Input Sensor

Failure Mode

Constant Value

at End Point

at Setpoint

End Po int Value

Setpoint Value

Sn-1

OFF

250

200

SENS

SNF

I-C

OEP

OSP

Controls

Sensor (Sn-1)

OFF

Analog Output

Integration

Analog Output

of Range at

Output is %

of Range at

Output is %

Prop. Band

Analog Output

Prop. Band

Analog Output

Sensor 1 Fails

Constant

Value

End Point

Value

Setpoint

250

End Point psi

200

Setpoint psi

Page 13

Expansion Modules, Module Assemblies, and Outputs

Figure 4: System 450 Module Assembly Example Showing Standard Control

Module Positions, Output Positions, and Output Numbers

System 450 expansion modules provide additional outputs to expand your control systems and meet your specific application requirements.

A System 450 control system can provide up to ten outputs, which can be any combination of relay and analog outputs. Expansion modules are available with one or two relay outputs, or with one or two analog outputs. See Table 11 on page 62 for information on the System 450 modules that can be used in a standard control system.

Module Assemblies, Output Types, and Output Numbers

You can easily plug System 450 modules together using the 6-pin connectors located on the sides of the modules’ housings and mount these module assemblies on standard 35 mm DIN rail (recommended) or directly to a hard, even surface. See Mounting

on page 36 for more information.

Figure 4 shows a System 450 module assembly example, the module positions, the output types, and the automatically assigned output numbers used in the System Setup screens in the control module UI.

The control module is always mounted on the left side of the module assembly . If a System 450 power module is used, the power module is always plugged into the right side of the control module. If expansion modules are used, they can be plugged into the assembly in any order on the right side of the power module (or the right side of the control module, if a power module is not used in the assembly). See Assembling System 450 Modules

on page 35 for more information.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 13

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Each time a System 450 module assembly is powered on, the control module polls

Figure 5: Pulse Signal with Pulse Level = 25% and Logical Output = 12.5%

all of the modules to identify output type (relay or analog) and then assigns an output number (1 to 9 and 0 = 10) to each output, starting with the first output on the first expansion module connected to the right of the control module (Figure 4). Output numbers are displayed on the control module LCD to identify the output you are viewing as you navigate the system status and setup screens in the System 450 UI (Figure 2).

Hybrid Analog Output

The C450CPW-100 control module is designed for use with variable speed Electronically Commutated (EC) fan motors on a wide variety of refrigeration and HVAC condensing units.

The C450CPW-100 module has a single onboard analog output that can be configured as a hybrid analog output to optimize and extend the controlled speed range of variable speed EC motors. The onboard analog output can also be set up for High Input Signal Selection, which enables precise and efficient EC motor speed control on multi-circuit condensing units.

Hybrid analog output control enables the C450CPW-100 control module’s hybrid analog output to transition between a pulse output and a standard VDC output, depending on the sensor value relative to the proportional band. At low output levels, the pulse output signal provides an average motor speed that is less than the EC motor’s fixed minimum speed (Figure 5).

Note: Only Analog Output 1 (OUT A1) on the C450CPW-100 control module can

be configured as a hybrid analog output and use the High Input Signal Selection feature. These features are not available for any of the other outputs in control systems that use a C450CPW-100 control module.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin14

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System 450 Compatible Sensors and Transducers

System 450 standard control modules are designed to operate with a variety of compatible sensors and transducers. The System 450 compatible sensors and transducers cover a wide range of temperature, pressure, and humidity conditions.

Note: System 450 compatible sensors consist of temperature sensors, humidity

sensors, and pressure transducers. The term sensor refers to all System 450 compatible input devices including transducers, unless noted otherwise.

System 450 compatible sensors also come in a variety of styles and configurations, allowing you to select the sensor or transducer that best fits your control system requirements. See Table 11 through Table 20 in Repair and Ordering Information on page 62 for more information on System 450 compatible sensors.

You can connect up to three sensors to a System 450 control module at the low-voltage terminal block. See Wiring System 450 Components on page 37 for more information on System 450 sensor wiring terminals on control modules. Refer to the System 450 module installation instructions and the sensor installation instructions referenced in Related Documentation on page 5 for information on installing, wiring, operating, troubleshooting, and replacing System 450 compatible sensors.

For each sensor in your control system, you must select the sensor’s corresponding Sensor Type when you set up the sensors in the System 450 UI. A sensor’s corresponding Sensor Type determines the controlled condition, unit of measurement, minimum differential, setup values, and ranges for each output that is set up to reference the sensor.

See Table 2 on page 16 for information about Sensor Types, the corresponding output setup values and ranges, sensor models, and transducer models used in standard System 450 control systems.

System 450 automatically designates the sensor connected to the Sn1 terminal and a common (C) terminal as the Sn-1 sensor in the UI. The sensor connected to the Sn2 and a C terminal is designated Sn-2, and the sensor connected to Sn3 and a C terminal is designated Sn-3. You set up each sensor in the corresponding sensor setup screens in the UI.

Note: For a System 450 control system to operate properly, you must wire the

correct sensor or transducer model to the correct sensor input terminals on the control module and select the correct Sensor Type in the corresponding Select Sensor Type screen in the System 450 UI. You must also set the active/passive sensor jumpers or switches on the control module correctly for each sensor or transducer connected to your control system.

See on page 40 and Setting Up the Sensors and Transducers

on page 45 for more information and procedures on setting up sensors and Sensor Types in the System 450 UI. See Active and Passive Sensors on page 17 for information on setting the active/passive switches and jumpers.

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System 450 Sensors and Transducers for Standard Control Modules

Table 2 shows the Sensor Types, output setup values, value ranges, and product types for the temperature sensors, humidity sensors, and pressure transducers that are compatible with the C450CxN-x standard control module models.

Table 2: System 450 Sensor Types, Setup Values, and Sensor/Transducer

Product Codes

Sensor Typ e

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 0.5 INWC (Pressure/in. W.C.) 0 to 0.5 0.025 to 0.5 0.005 0.025 DPT2650-0R5D-AB

P 2.5 INWC (Pressure/in. W.C.) 0 to 2.5 0.1 to 2.5 0.02 0.1 DPT2650-2R5D-AB

P 5 INWC (Pressure/in. W.C.) 0 to 5.0 0.25 to 5.0 0.05 0.25 DPT2650-005D-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

P 100 PSI (Pressure/psi) 0 to 100 0 to 100 0.5 1 P499Rxx-101C

P 110

P 200 PSI (Pressure/psi) 0 to 200 0 to 200 1 1 P499Rxx-102C

P 500 PSI (Pressure/psi) 0 to 500 90 to 500 1 5 P499Rxx-105C

P 750 PSI (Pressure/psi) 0 to 750 150 to 750 2 6 P499Rxx-107C

HIF F (Temperature/degrees) -50 to 340

HIC C (Temperature/degrees) -45.5 to

Unit of Measurement Value (Condition/Units)

Hg/PSI (Pressure/Hg-psi) -10 to 100

Effective Sensing Range

(20 inHg to 100 psi)

170

Range of Usable

Values

-10 to 100 0.5 1 P499Rxx-100C

-40 to 340

-40 to 170

Resolution Increment Val ue

1 1 TE-631x, TE-6000-x

0.5 0.5 TE-631x, TE-6000-x

Minimum Proportional or Control Band

Sensor Product

Type Number

HE-67Nx-xxxxx HE-68Nx-0N00WS

TE-68NT-0N00S

1. Because of the way that the System 450 Differential Sensor (Sn-d) is set up and calculated with two identical sensors (Sn-1 and Sn-2), the Range of Usable Values is twice as large as a single sensor. See Table 5 on page 26 for the Range of Usable Values when an output references Sn-d.

2. See Repair and Ordering Information on page 62 (Table 12 through Table 20) for additional ordering information for

System 450 compatible sensors and transducers.

3. See Active and Passive Sensors on page 17 for information on setting up System 450 outputs that reference the P 110

Sensor Type.

4. Many of the temperature sensors that can be set up as HI°F or HI°C Sensor Types are not designed for use across the entire Range of Usable Values for HI°F and HI°C Sensor Types. Refer to the Technical Specifications for the sensor you intend to use to determine the condition range that the sensor is specified to be mounted and operate in.

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Active and Passive Sensors

Figure 6: Example Showing the Active/Passive Slide Switch Settings

on a Control Module with Analog Outputs

Figure 7: Example Showing the Active/Passive Jumper Positions

on a Control Module with Relay Outputs

Each sensor/transducer hardwired to a System 450 control system is either an active or passive sensor. Passive System 450 sensors are two-wire temperature sensors that connect to one of the sensor input terminals and a common terminal (C) only. Active sensors are three-wire humidity sensors and pressure transducers that connect to one of the sensor input terminals, a common terminal, and a voltage supply terminal (24V or 5V). The sensors and transducers have the following requirements:

• Temperature sensors do not require a power source.

• Humidity sensors and differential air pressure transducers require 24 VAC supply power and must be connected to the 24V terminal on the input terminal block.

• P499 pressure transducers require a 5 VDC power source and must be connected to the 5V terminal on the input terminal block.

On control modules with analog outputs, set the active/passive switches to ON for passive temperature sensors and off for active humidity sensors.

On control modules with relay outputs, position the active/passive jumpers across both pin terminals for passive temperature sensors and on one terminal for active humidity and pressure sensors.

See System 450 Standard Control System Examples on page 27 for System 450 control system examples showing active/passive sensor jumper or switch settings.

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System 450 Functional Sensors

System 450 control modules also enable several functional sensors based on the input from one or more of the hard-wired sensors in your control system. Selecting a functional sensor for an output on a System 450 standard control system enables the differential or high signal selection control feature on the output.

Beginning with firmware Version 2.00, System 450 standard control modules provide for three additional functional sensors:

• When Sn-1 and Sn-2 are set up as the same Sensor T ype, the High Input Signal Selection functional sensor (HI-2) and Differential Control functional sensor (Sn-d) are enabled and available in the Sensor Selection screens for each output in the control system.

• When Sn-1, Sn-2, and Sn-3 are the same Sensor Type, the High Input Signal Selection functional sensor (HI-3) is also enabled and available.

See High Input Signal Selection on page 24 and Differ ential Contr ol on page 25 for more information about these functional sensors and system control features.

Relay Outputs

Relay outputs provide low and line-voltage on/off control for devices and equipment in your controlled systems. Each relay output is a Single-Pole, Double-Throw (SPDT) set of dry contacts. See Figure 15 on page 38.

Note: System 450 output relays are SPDT dry contact relays only and do not

provide any power source for your controlled equipment.

Selecting an ON value that is less than the OFF value (ON < OFF) turns the relay on when the sensed condition value decreases, which is the typical heating mode in temperature applications and referred to as reverse acting on/off control.

Selecting an ON value that is greater than the OFF value (ON > OFF) turns the relay on when the sensed condition value increases, which is the typical cooling mode in temperature applications and referred to as direct acting on/off control.

You can set up multiple relay outputs to create a variety of equipment staging control systems. See Wiring System 450 Components

on page 37 for information on wiring output relays. See Technical Specifications on page 67 for the relay output electrical ratings.

A green LED on the relay control and relay expansion module housings (Figure 2) indicates the relay output status.

When a relay output is On:

• the corresponding green LED on the module housing is lit

• the LNO (Line Normally Open) relay contact is closed

• the LNC (Line Normally Closed) relay contact is open

• the corresponding Output Status screen in the UI displays On When a relay output is Off:

• the corresponding green LED on the module housing is not lit

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• the LNO relay contact is open

Relay State

Relay On

Relay Off

Sensed Condition

OFF

Condition

Value

Direct Acting Relay

OFF < ON

Condition

Value

Relay State

Relay On

Relay Off

Sensed Condition

Condition

Value

OFF

Condition

Value

Reverse Acting Relay

ON < OFF

• the LNC relay contact is closed

• the corresponding Output Status screen in the UI displays OFF System 450 control and expansion modules are available with one or two relay

outputs. See T able 11 on page 62 and Technical Specifications on page 67 for more information about the System 450 Series module models used to build standard control systems.

A relay output’s control action is determined by the values that you select in the ON and OFF relay output setup screens:

• Relay ON values (ON) are the values at which the relay turns On.

• Relay Off values (OFF) are the values at which the relay turns Off. Table 3 illustrates direct and reverse relay actions. When you select On/Off

condition values where OFF is less than On, the output relay is a direct acting relay . When you select condition values where On is less than Of f, the output relay is a reverse acting relay.

Table 3: System 450 Output Relay Control Actions and the Relationship

Between ON and OFF Values

Control Action Set the Relay Output ON/OFF Value

Relationships for the Desired Control Action

OFF < ON

ON < OFF

In temperature applications, direct acting relays are often used to control cooling equipment, while reverse acting relays are often used to control heating equipment.

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In pressure applications, directing acting relays are often used for condenser fan cycling control or pump-down control, while reverse acting relay may be used for high pressure cut-out.

In humidity applications, direct acting relays often control dehumidification equipment, and reverse acting relay often control humidification equipment.

Analog Outputs

Analog outputs provide proportional analog signals for devices and equipment in your controlled systems. Each analog output can generate either a 4 to 20 mA or 0 to 10 VDC signal. The output signal type is self-selecting; after you connect the analog output to the controlled equipment, the output detects the analog input on the controlled equipment and generates the appropriate analog signal for the connected input.

You can set up an analog output to generate a direct acting or reverse acting proportional output signal. You can also set up the output signal strength to increase or decrease in either the direct acting or reverse acting mode. See Direct and Reverse Control Actions for Analog Outputs on page 20 for more information.

System 450 also provides six integration constants that allow you to set up a proportional plus integral control signal, which can provide more precise setpoint control. See Proportional Plus Integral Contr ol and Integration Constants on page 23 for information on determining the integration constant for an analog output.

For procedures on setting up analog outputs on standard control modules, see Setting up an Analog Output on page 50.

System 450 control and expansion modules are available with one or two analog outputs. See T able 11 on page 62 and Technical Specifications on page 67 for more information about the System 450 Series module models that are used to build standard control systems.

Direct and Reverse Control Actions for Analog Outputs

An analog output can be set up to provide one of four different control actions, which allow you to match the output signal to the requirements of your control system and the controlled equipment. The proportional output signal can provide direct acting or reverse acting control. In addition, the output signal can be set up to generate either the minimum or the maximum output signal strength at Setpoint.

A control ramp icon is displayed on the status screens for all analog outputs in your control system. See Figure 2 on page 10. The displayed control ramp icon represents the control action of the analog output signal. See Table 4 on page 22 for more information on analog output control actions and control ramp icons.

An analog output’s control action and the corresponding control ramp are automatically determined by the values that you select in four analog output setup screens:

• Setpoint value (SP) is the target value that the control system drives toward,

and along with the End Point, defines the output’s proportional band.

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• End Point value (EP) is the maximum deviation from the target value

(Setpoint). The control system applies maximum output at the EP to drive the process back toward the SP. The SP and EP define the analog output’s proportional band.

• Output at Setpoint value (OSP) is the signal strength level of the analog

output when the input sensor is at Setpoint (SP). The OSP is expressed as a percentage (0 to 100%) of the full scale output.

• Output at Endpoint value (OEP) is the signal strength level of the analog

output when the input sensor is at the End Point (EP). The OEP is expressed as a percentage (0 to 100%) of the full scale output.

Note: System 450 analog outputs that reference the differential control sensor

(Sn-d) use a Differential Setpoint (dSP) and Differential End Point (dEP) to define the output’s proportional band. See Differential Control on page 25 for more information.

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Table 4 shows the four control ramp icons and describes their corresponding

OEP=100%

OSP=0%

OEP=100%

OSP=0%

OSP=10 0%

OEP=0%

EP=60°F

OSP=10 0%

OEP=0%

control actions and the setup value relationships required to configure the four control actions. See Figure 23 and Figure 24 on page 52 for examples.

Table 4: System 450 Control Ramps, Analog Output Control Actions, and

System Setup Value Relationships

Control Ramp Displayed

Control Action Set the Analog Output Value Relationships

for the Desired Control Action and Corresponding Control Ramp

SP < EP

Output Minimum at SP

SP=50°

EP=60°

OSP < OEP

SP > EP

Output Minimum at SP

EP=50°F SP=60°F

OSP < OEP

SP > EP

OSP > OEP

Output Maximum at SP

EP=50°F SP=60°F

SP < EP

Output Maximum at SP

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin22

OSP > OEP

SP=50°F

Page 23

Proportional Plus Integral Control and Integration Constants

Figure 8: Proportional Only Control Versus Proportional Plus Integral Control

to bring the system condition to

Control point and output follows the system load.

Humidity,

Pressure, or

Temperature

Offset Error

Zero

Offset

Error

In addition to standard proportional control, System 450 provides Proportional plus Integral (PI) control capability. The addition of integral control enables a

properly set up analog output to drive a controlled condition closer to Setpoint (Figure 8).

Standard proportional-only controls continuously adjust the output in proportion to the difference (offset error) between the Setpoint value and the sensor value. As the load on the system increases, the offset error increases. A proportional-only control responds to the increased offset error by changing the output signal, which drives the controlled equipment to compensate for the load change (Figure 8). Proportional-only control loops are relatively easy to set up and adjust.

T ypically, under constant system load, proportional-only control loops do not drive a system to the selected Setpoint. Instead, the controlled system is maintained at a control point within the proportional band (throttling range) between setpoint and end point. The larger the load on the system, the further the control point drifts from setpoint. Still, for many applications, proportional-only control is the best choice for analog output control.

Proportional Only Control

End Point

Humidity,

Pressure, or

Temperature

Integral control adjusts the o utput

Setpoint regardless of system load.

Offset Error

End Point

Proportional plus Integral (PI) control incorporates a time-integral control action with proportional control action and, if properly set up, a PI control loop can effectively eliminate offset error and enable a controlled system to drive to setpoint even under large constant loads (Figure 8). On a properly sized system with predictable loads, PI control can maintain the controlled system very close to setpoint.

PONLY-PRO+I

A system’s output capacity, the size of the load on the system, and the integration constant selected determine the speed (recovery rate) at which the PI control drives the system to setpoint.

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The integration constant establishes the rate at which the control readjusts the analog output signal. The faster the integration constant, the faster the control readjusts the output signal and the faster the recovery rate of a properly sized and setup control loop.

Note: PI control is not suitable for all controlled systems. Improperly applied PI

control loops are unstable and can overshoot setpoint, resulting in control loop oscillation. Also, with PI control, the proportional band (throttling range) and the integration constant are interdependent and you must properly set up these values in relation to each other. You must also properly size the system equipment to handle the maximum load. Close observation over several cycles and under different load conditions is required to properly set up a PI control loop. On a properly sized system, a PI control loop can drive the system condition much closer to setpoint than proportional-only control.

In addition to a proportional-only setting, System 450 provides six time-integral settings in the Integration Constant Setup screen for matching the analog signal’s response rate to the controlled system’s recovery rate. The seven integration constant settings are shown in Table 8 on page 60.

See Determining the Integration Constant for an Analog Output on page 56 for more information and the procedures for determining an integration constant and testing a PI control loop in your controlled system.

High Input Signal Selection

Standard System 450 control modules, including the C450CPW -100 hybrid analog control module, include the High Input Signal Selection control feature.

The High Input Signal Selection feature enables a System 450 control system to monitor a condition (temperature, pressure, or humidity) with two or three sensors (of the same type) and control relay and analog outputs based on the highest condition value sensed by the two or three referenced sensors.

When Sn-1 and Sn-2 are set up with the same Sensor Type, the functional High Input Signal Selection sensor (HI-2) is available for selection when you set up the outputs in the control system. When Sn-1, Sn-2, and Sn-3 are set up with the same Sensor Type, the functional sensor (HI-3) is also available for selection.

Note: High Input Signal Selection is available on standard System 450 control

modules beginning with firmware Version 2.00 and on the hybrid analog control module (C450CPW-100). On the hybrid analog control module, High Input Signal Selection is only available for the hybrid analog output (OUTA1).

Note: Setting up Sn-1 and Sn-2 as the same Sensor Types also enables the

functional Differential Control sensor (Sn-d). See Differential Control page 25 for more information.

High Input Signal Selection control application examples include:

• fan-staging control on multi-circuit condensing units

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin24

Page 25

• fan motor speed control on multi-circuit condensing units The Hybrid Analog and High Input Signal Selection Control System Example on

page 32 provides module assembly, wiring, and UI setup information for a System 450 hybrid analog output control system that uses the High Input Signal Selection feature.

Differential Control

Standard System 450 control modules include the Differential Control feature. The Differential Control feature enables a System 450 control system to monitor

and maintain a temperature, pressure, or humidity dif ferential between two sensors of the same type and control relay and/or analog outputs based on the sensed differential value relative to user-selected differential values.

Note: Differential Control is available on standard System 450 control modules

beginning with firmware Version 2.00. Differential Control is not available on the hybrid analog control module (C450CPW-100).

Differential Control application examples include:

• solar heating systems

• pump pressure-drop monitoring and control

• fluid filter pressure-drop monitoring

• air filter pressure-drop monitoring Setting up an output (relay or analog) for Differential Control requires connecting

two identical sensors to input terminals Sn1 and Sn2 and selecting the same Sensor Type in the System 450 UI for Sensor 1 (Sn-1) and Sensor 2 (Sn-2). The System 450 control system recognizes the same Sensor Types and makes the functional Differential Control sensor (Sn-d) available for selection when you set up each of the control system outputs.

Note: Setting up Sn-1 and Sn-2 as the same Sensor Types also enables the

functional High Input Signal Selection sensor (HI-2). See High Input Signal Selection on page 24 for more information.

When a Differential Control sensor (Sn-d) is set up, the differential sensor value is a calculated value; (Sn-d) = (Sn-1) minus (Sn-2). The Differential Control sensor (Sn-d) value is always equal to Sn-1 minus Sn-2. Therefore, depending on the intended control action of the output, the differential value may be either a positive or negative value.

The sensed differential value (Sn-d) between Sn-1 and Sn-2 is displayed in the System Status screens as either a temperature differential value (dIFT), pressure differential value (dIFP), or humidity differential value (dIFH). The unit of measurement associated with the displayed differential value is determined by the Sn-1 and Sn-2 Sensor Type. See Table 2 on page 16 for Sensor Types and their units of measurement.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 25

Page 26

When a relay output is set up for Differential Control, System 450 compares the sensed differential value, Sn-d (Sn-d = Sn-1 minus Sn-2), to the user-selected differential values (dON and dOFF) to control the relay’s On/Off state.

When an analog output is set up for Differential Control, System 450 compares the sensed differential value, Sn-d (Sn-d = Sn-1 minus Sn-2), to the user-selected differential values (dSP and dEP) to control the analog output signal strength.

The Solar Heating Contr ol System Example Using Differential Control on page 28 provides module assembly, wiring, and UI setup information for a standard System 450 control system that uses the Differential Control feature.

Note: Because of the way that the System 450 Differential Sensor (Sn-d) is set up

and calculated using two sensors with identical Sensor T ypes, the Range of Usable Values for each Sensor Type is twice as large as a single sensor. (Each Sensor Type has an equal number of positive and negative values on outputs that reference Sn-d.) See Table 5 for a Sensor Type’s Range of Usable Values when an output references Sn-d.

Table 5: Range of Usable Values for Sensor Types in Differential Control

Applications

Sensor Type Sn-d Range of Usable

Values

F -290 to 290 P 30 -30.0 to 30.0

C -161.0 to 161.0 P 50 -50.0 to 50.0

rH -95 to 95 P 100 -100.0 to 100.0

P 0.5 -0.500 to 0.500 P 110 -110.0 to 110.0

P 2.5 -2.50 to 2.50 P 200 -200 to 200

P 5 -5.00 to 5.00 P 500 -500 to 500

P 8 -9.00 to 9.00 P 750 -750 to 750

P 10 -10.00 to 10.00 HIF -380 to 380

P 15 -16.0 to 16.0 HIC -210.0 to 210.0

Sensor Type Sn-d Range of Usable

Values

Sensor Failure Mode

System 450 allows you to select the mode of operation for your control system outputs in the event of a sensor (or sensor wiring) failure of the sensor or sensors that the outputs reference. When you set up an output in the System 450 UI, you must select a sensor failure mode of operation in the Sensor Failure Mode (SNF) screen. Your selection determines how an output responds if a referenced sensor or sensor wiring fails.

System 450 outputs can be set up to directly reference a single compatible sensor hardwired to the control system (Sn-1, Sn-2, or Sn-3). Outputs in control systems with System 450 standard control modules can also be set up to reference several functional sensors (Sn-d, HI-2, or HI-3). The functional sensors reference input from one or more of the hard-wired sensors; thus one or more of the hard-wired sensors can influence the outputs that reference functional sensors.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin26

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When any one of the connected sensors (Sn-1, Sn-2, or Sn-3) or associated sensor wiring fails, all of the outputs that reference the failed sensor, either directly or through a functional sensor, go into the outputs’ selected sensor failure modes and continue to operate in the sensor failure modes until the sensor or sensor wire failure is corrected.

You can select either On or OFF for an output’s Sensor Failure Mode. Depending on the type of output (relay or analog), the On and OFF Sensor Failure Modes are defined as follows:

• Relay output SNF ON = Relay On. (See Relay Outputs on page 18 for more information regarding a relay output’s on state.)

• Relay output SNF OFF = Relay Off. (See Relay Outputs on page 18 for more information regarding a relay output’s off state.)

• Analog output SNF ON = Output Signal Strength at End Point (OEP). (See Analog Outputs on page 20 for more information regarding Output Signal at End Point.)

• Analog output SNF OFF = Output Signal Strength at Setpoint (OSP). (See Analog Outputs on page 20 for more information regarding Output Signal at Setpoint.)

System 450 Standard Control System Examples

With System 450 control and expansion modules, you can build a wide variety of cost-effective, custom control systems. Each of the following examples provide an illustration of the module assembly, including wiring diagrams for system sensors and outputs, and menu flow charts showing typical Main screens and System Status screens, along with System Setup screens and example setup values.

Note: The physical configurations, wiring, and setup values shown in the

following examples are meant to illustrate typical control system applications, control features, and system setup values. Your control applications may require different modules, module configurations, sensors, wiring, and UI setup parameters and values.

See Control Modules and User Interface Module Assemblies, and Outputs on page 13 for general information and guidelines on System 450 modules and UI. See Detailed Procedures for information and procedures on designing your control system, selecting modules and sensors, mounting and wiring your control system, accessing and navigating the System 450 UI, and setting up your control system in the UI.

Standard System 450 control systems use the C450CxN-x control modules along with System 450 expansion modules. The following standard control system examples illustrate on/off relay control, proportional analog control, multi-state control, High Input Signal Selection, and/or Differential Control. See System 450 Standard Control Modules on page 9 for more information on standard control.

on page 10 and Expansion Modules,

on page 34

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 27

Page 28

Clean Room Control System Example with Temperature, Pressure, and

Figure 9: Standard System 450 Control System Example for a Clean Room

Application That Controls Temperature, Pressure, and Humidity Simultaneously

WIRING

24V

Sn2

Sn1

Sn3

Humidity Control

Figure 9 shows a standard System 450 control system example for a clean room application that controls temperature, pressure, and humidity simultaneously.

Figure 10 shows the System 450 UI Main screens, System Status screens, and System Setup screens for the clean room control system with simultaneous temperature, pressure, and humidity control shown in Figure 9.

LNO2

LNO1

LNC1

LC1

240

VAC

120

VAC

LC1

LNO1

LNC1

LC2

LC1

LNO2

LC2

FIG:Sys450_clean_ro om_app

Solar Heating Control System Example Using Differential Control

Figure 11 shows a standard System 450 control system example for a solar water heating and storage application that uses the Differential Control feature to control two circulation pumps.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin28

Page 29

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 29

Figure 10: Main, System, Status, and Setup Screens For a Clean Room Control System

Example That Controls Temperature, Pressure, and Humidity Simultaneously

Page 30

Figure 12 shows the System 450 UI Main screens, System Status screens, and

Figure 11: Solar Water Space Heating Control System Example That Uses

the Differential Control Feature

240

VAC

120 VAC

WIRI NG

24V

Sn2

Sn1

Sn3

LC1

LNO1

LNC1

LC2

LNO2

LC1

LNO1

LNC1

LC2

LNO2

Room

Heating

Loop

Sn3

Solar Panel

Sensor

Sn1

Sn3

Room Heating

Circulation Pump

C450CCN-x

OUTR1, OUTR2

C450YNN-1C

Power Module

C450SBN-x

Expansion

Module

OUTR3

Solar Panel

Sn2

Storage

Ta n k

Sensor

Sn2

Sn1

FIG:Sys450_solar_diffcontrol_diagram

System Setup screens for the control system shown in Figure 11.

Control Module

NC1

LC1

Room

Sensor

Solar Water

Circulation Pump

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin30

Page 31

Figure 12: Main, System Status, and Setup Screens For a Solar Water Heating

Control System Example That Uses the Differential Control Feature

(

)

T U O

l o

t n o

C m

o o

l e n a P r

la o S

N O

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 31

Page 32

Hybrid Analog and High Input Signal Selection Control System Example

Figure 13: System 450 Hybrid Analog Output Control System Example with

Condenser Fan (EC) Motor Speed Control, High Input Signal Selection

FIG:C450CPW100appanlgexmp

Active/Passive Sensor DIP Switches

DIP Switch 1 and 2 are OFF; switch 3 is ON.

C450SBN-x

Expansion Module

OUTR2

C450CPW-100 Control Module

OUTA1

WIRING

24V

Sn2

Sn1

Sn3

WIRING

24V

Sn2

Sn1

Sn3

240

VAC

120

VAC

Electronically Commutated (EC) Motor Speed Control Input Circuit

* Connect cable shields at only one point to any “C” terminal on the Input Terminal Block.

Figure 13 shows a System 450 hybrid analog output control system example using a C450CPW-100 control module with the hybrid analog output controlling the speed of an EC condenser fan motor (for the cooling equipment condenser) based on condenser pressure.

This example uses two P499 pressure transducers and the High Input Signal Selection feature to control the condenser fan speed based on the highest pressure sensed by the two transducers. The cooling equipment is controlled by an A99 temperature sensor .

Figure 13 also shows a System 450 control system that is set up to use the High Input Signal Selection feature to control the hybrid analog output signal and the motor speed of an EC condenser fan motor on the cooling equipment condenser.

Figure 14 shows the System 450 UI Main screens, System Status screens, and System Setup screens for the control system example in Figure 13.

LNO1

COM

AO1

LNC1

LC1

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin32

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Figure 14: Main, System Status, and Setup Screens for a Hybrid Analog

Output Control System Example with High Input Signal Selection

(

)

I H

F F

S N E S

F N S

E S

S O

T U

1 r o s n e S

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 33

F O

0 2

8 7

F N

T F F

T N O

F F

s n e e

r c

Page 34

Detailed Procedures

Designing and Building System 450 Control Systems

The variety and flexibility of System 450 modules and sensors allow you to build an almost limitless variety of custom control systems. In fact, for many control systems, different System 450 components can be configured to achieve the same results.

Observe the following guidelines when designing a control system and selecting components for your control system:

• Determine the conditions and condition ranges that must be monitored and controlled in your application to determine the sensors you need. Up to three sensors can be connected and up to three conditions can be monitored simultaneously using standard control modules. See Table 2 on page 16 and Selecting, Installing, and Setting Up Sensors for more information.

• Determine the type of control your application requires – standard control, relay control, analog proportional control, Differential Control, High Input Signal Selection, multi-purpose, or a combination of control types. See System 450 Standard Control Modules on page 9 for more information regarding System 450 control types.

• Select the standard control module or hybrid analog output control module if your application requires on/off relay control, proportional analog control, multi-stage control, multi-purpose control, stand-alone control, or proportional plus integral control. (See Table 11 on page 62 for System 450 control module model information.) If your application requires functions that are not available from the standard control module or hybrid analog output control module, consider the communications control module or the reset control module.

• Determine the number and type (relay or analog) of outputs required to control the equipment in your application. Up to ten outputs can be configured and controlled by a single System 450 control module.

• Determine the types of control and expansion modules (relay or analog) needed to provide the required outputs for your application and the minimum number of modules required to provide those outputs.

Note: Many System 450 control systems can be configured using different

combinations of module models to build the assembly, but typically there is one combination of modules that is more cost effective to build than other potential module assembly configurations.

Selecting, Installing, and Setting Up Sensors

In a System 450 control system, all of the outputs reference one or more of the sensors that are wired to the control module and set up in the control module UI. Observe the following guidelines when selecting, installing, and setting up sensors for your control system with standard control modules:

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin34

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• Select only System 450 compatible sensors. See Table 2 on page 16 for a

complete list of System 450 sensor types and models that are compatible with standard control modules. See Table 12 through Table 20 and Repair and Ordering Information on page 62 for more information on System 450 compatible sensors.

• Select only the sensors that match the desired conditions and units of

measurement, and are designed to operate in the ranges that your control system is intended to monitor and control.

• Ensure that the correct sensor is wired properly to the correct input terminals

on the control module. See Wiring System 450 Components on page 37.

• Ensure that the wire length between the sensors and control module is as short

as possible/practical, and ensure that the wiring is properly sized. Refer to the sensor installation instructions referenced in Related Documentation on page 5 for more information on wiring sensors.

• Ensure that the correct sensor type is selected in the System 450 UI for each

sensor wired to the control module. See Setting Up the Sensors and Transducers on page 45.

• Ensure that the active/passive switches or jumpers are set correctly for each

sensor in your control system. See Active and Passive Sensors on page 17 for more information.

• Ensure that each output references the correct sensor in the System 450 UI. See

on page 40.

Assembling System 450 Modules

After selecting the System 450 components for your control system, you must assemble the modules. Figure 4 on page 13 shows an example of a System 450 module assembly.

Observe the following guidelines when assembling System 450 modules:

• Always locate the control module on the left side of the module assembly.

• Always plug the System 450 power module (when used) into the right side of

the control module.

• Plug the expansion modules together, in any order, on the right side of the

System 450 power module or on the right side of the control module when an external 24 VAC power supply is used instead of a System 450 power module. (See Wiring System 450 Components on page 37 for information on wiring an optional external 24 VAC supply power to System 450 control systems that do not include a power module.)

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Installing System 450 Components

Locating System 450 Modules

Observe these guidelines when locating and mounting System 450 modules:

• Ensure that the mounting surface can support the module assembly, DIN rail, mounting hardware, and any (user-supplied) panel or enclosure.

• Mount the modules in a horizontal, upright orientation wherever possible. DIN rail mount is recommended.

• In direct-mount applications, mount the modules on flat and even surfaces.

• Mount the modules in a location free of corrosive vapors and observe the ambient operating conditions in the Technical Specifications on page 67.

• Allow sufficient space for making connections, running wires, and viewing the LCD.

• Do not mount the modules on surfaces that are prone to vibration or in locations where high-voltage relays and motor-starters, electromagnetic emissions, or strong radio frequency 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 ambient temperature to exceed 66°C (150°F).

Mounting

Mount System 450 modules on 35 mm DIN rail (recommended) or directly to a flat, even surface.

To mount the 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 in a suitable location using appropriate mounting hardware.

2. Clip the control module on the rail, position the module’s upper DIN rail clips on the top rail, and gently snap the lower clips on to the bottom of the rail.

IMPORTANT: When mounting a module assembly on a DIN rail, clip the modules on to the DIN rail individually before gently sliding and plugging the mounted modules together on the DIN rail. Clipping a complete module assembly that is already plugged together on to the DIN rail can damage the 6-pin modular plugs and void any warranties.

3. Clip the remaining modules to the right of the control module on to the DIN rail and gently slide and plug the modules together. (If a System 450 power module is used, mount the power module on the right side of the control module so that the power module plugs directly into the control module.)

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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).

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

Note: If you mount the modules on an uneven surface, use shims or washers

to mount module assembly evenly on the surface.

Refer to the sensor installation instructions referenced in Related Documentation on page 5 for information on locating and mounting System 450 compatible sensors.

Wiring System 450 Components

When wiring your System 450 control system, observe the following guidelines and see Figure 15, Figure 16, and Table 6 for wiring terminal locations and designations. See Technical Specifications on page 67 for the electrical ratings for System 450 modules used to build System 450 standard control systems.

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.

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.

IMPORTANT: Run all low-voltage wiring and cables separate from all highvoltage 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.

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IMPORTANT: Do not connect supply power to the System 450 modules

Figure 15: Wiring Terminal Details for System 450 Control

and Expansion Modules with Relay Output

System 450

(C450CCN-x)

Common terminals (C)

are inte rnally

connected.

Line-Voltage

(on Relay Control and

Expansion Modules)

Relay Output Terminals

Note:

relays a nd a second terminal b lock labeled LNC2, LN O2, and LC2.

Expansion Module

with Relay Output

(C450SCN-x)

sys450_cntrl_expn sn_wirng

before 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.

Figure 15 and Figure 16 show the locations of and designations for the wiring terminals for System 450 standard control modules and expansion modules.

System 450

24V

Sn1

Internal SPDT Relay

(Normally Closed Position)

The C450 xCN-x C ontrol and Expansion module models have two outpu t

Sn2

Sn3

Control Module

with Relay Output

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Figure 16: Wiring Terminal Details for System 450 Control and

Expansion Modules with Analog Outputs

(C450CQN-x)

System 450

Expansion Module

with Analog Outputs

(C450SQN-x)

sys450_anlg_cntrl_expnsn_wirng

Analog

Controlled

Device

Analog

Device

Low-Voltage

(on Analog Control and

Analog Output Terminals

24V

Sn1

Common terminals (C)

are internally

connected.

Note:

AO2

COM

AO1

Sn2

Sn3

COM

AO2

AO1

Controlled

System 450

Control Module

with Analog Outputs

Analog Expansion Modules)

C450xPN-x control and expansion modules only have two terminals with AO1

and COM connections.

COM

AO2

AO1

Table 6 provides descriptions, ratings, requirements, and recommended cable types and recommended wire sizes for System 450 standard control, expansion, and power modules.

Table 6: System 450 Wiring Terminal and Wire Size Information (Part 1 of 2)

Terminal Block Type (on Module Type)

Sensor and Low-Voltage Supply Power Terminal Block (on all Control Modules)

Terminal

Terminal Function Required Wire

Label

24V Accepts 24 VAC supply power, when a

C450YNN-1C power module is not connected, and provides power terminal for active 24 VAC (humidity) sensors.

5V Provides 5 VDC power for active sensors.

Sn1, Sn2, Sn3

(3 Terminals)

Accepts passive or active input signals from sensors.

Provides 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.

Sizes

28 AWG to 16 AWG

0.08 mm2 to 1.5 mm

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 39

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Table 6: System 450 Wiring Terminal and Wire Size Information (Part 2 of 2)

Terminal Block Type (on Module Type)

Line-Voltage Output Relay Terminal Blocks (on Control and Expansion Modules with Relay Output)

Low-Voltage Analog Output Terminal Block (on Control and Expansion Modules with Analog Outputs)

Line-Voltage Supply Power Terminal Block (on Power Modules only)

Terminal Label

LNC1, LNC2

LNO1, LNO2

LC1 LC2

AO1 AO2

COM In conjunction with the AO1 or AO2 terminal,

240 VAC Left terminal is for one 240 VAC supply power lead. 22 AWG to 14 AWG

No Label on the Middle Terminal

120 VAC Right terminal is for one 120 VAC supply power lead.

Terminal Function Required Wire

Sizes

Connects equipment control circuit to the linevoltage Normally Closed (LNC) contact on the SPDT relay.

LNC2 terminals are only on control and expansion modules with two output relays.

Connects equipment control circuit to the linevoltage Normally Open (LNO) contact on the SPDT relay.

LNO2 terminals are only on control and expansion modules with two output relays.

Connects line power to the line-voltage Common (LC) on the SPDT relay.

LC2 terminals are only on control and expansion modules with two output relays.

In conjunction with the COM terminal, provides a self-detecting analog output signal; either 0 to 10 VDC or 4 to 20 mA.

provides a self-detecting analog output signal; either 0 to 10 VDC or 4 to 20 mA.

Middle terminal is the Common connection for either the 120 VAC or 240 VAC supply power lead.

28 AWG to 14 AWG

0.08 mm

28 AWG to 16 AWG

0.08 mm

0.34 mm

to 2.5 mm

to 1.5 mm

to 2.5 mm

Wiring System 450 Sensors and Transducers

Refer to the sensor installation instructions referenced in Related Documentation on page 5 for information on wiring System 450 compatible sensors.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin40

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Setting up a System 450 Standard Control System

After assembling the modules, your System 450 control system is ready to connect to power and to be set up in the control module UI.

Note: You can power on and set up your System 450 control system in the control

module UI before installing the module assembly or wiring the sensors and outputs.

Note: The sensors and transducers must be set up in the System 450 UI before

you can set up any of the control system outputs. See Setting Up the Sensors and Transducers on page 45 for more information and detailed procedures.

Determining Output Numbers and Output Types

After all of the modules in your control system are properly assembled and each time power is supplied to the module assembly, the control module automatically polls all of the modules in the assembly, assigns output numbers, and determines output types and their order in the assembly.

The control module assigns a sequential output number to each output in the module assembly, starting with the output farthest to the left in the module assembly (first expansion module), which is assigned output number 1. Each output to the right of output 1 is assigned an output number; the numbers are 2 to 9 in order of the output’s physical position, left to right, in the module assembly. Zero (0) is assigned to output 10, if the control system has ten outputs. See Figure 4 on page 13 for an example of output numbers in a module assembly.

The control module also determines if an output is a relay output or an analog output, and generates the appropriate status screens and setup screens in the System 450 UI for each output.

IMPORTANT: Do not change the module positions after a System 450 control system is assembled, powered, and set up in the System 450 UI. System 450 control logic is set up in the UI according to the sensor type, output type, and output number. If you change the module positions in a module assembly that is already set up in the UI, the output numbers and default setup values for the outputs also change, which often requires you to set up the entire control system in the UI again.

System 450 UI Navigation Guidelines

See the example menu flowchart in Figure 3 on page 12 and the following general guidelines for information on navigating the System 450 UI on standard control modules.

• During normal operation, the Main screens (sensor status screens) auto-scroll, displaying the control system’s sensor statuses on the LCD.

• While the Main screens are auto scrolling on the LCD, press (repeatedly) to manually scroll through the sensor status and output status screens.

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• While the Main screens are auto scrolling on the LCD, press and hold and simultaneously for 5 seconds to go to the Sensor Setup Start screen and access the rest of the System Setup screens.

• While in any System Setup Start screen, press repeatedly to scroll through

the System Setup Start screens for your control system. (You cannot enter values in System Setup Start screens.)

• You must set up the sensors before you can set up the outputs. (See Setting Up the Sensors and Transducers on page 45 for procedures for setting up the sensors.)

• An output’s type (relay or analog) and output’s ID number in the UI is determined by the output types on the control module and any connected expansion modules and the order in which the modules are connected in the module assembly. (See Module Assemblies, Output Types, and Output Numbers on page 13 for more information.)

• An output’s setup parameters are determined by the output’s type (relay or analog) and the Sensor Type of the sensor you select for the output to reference. (See Expansion Modules, Module Assemblies, and Outputs on page 13 and System 450 Sensors and Transducers for Standard Control Modules on page 16 for more information.)

• In System Setup screens with flashing values, you can change the setup value by pressing or . When the desired parameter value is flashing in the setup

screen, press to save the value and go to the next setup screen.

• After 2 minutes of inactivity in a System Status or System Setup screen, the LCD reverts back to scrolling through the Main screens.

• In any Setup screen, press to go to the associated Setup Start screen.

• In Setup Start screen, press or simultaneously to resume autoscrolling through the Main screens.

Accessing and Navigating the User Interface

System 450 control modules feature a backlit LCD and a four-button touchpad UI for monitoring system status and setting up the sensors and outputs in your control system. Figure 2 on page 10 describes the System 450 UI features and functions.

During normal operation, the System 450 control module LCD displays the Main screens. The Main screens are the sensor status screens, which scroll automatically and provide real-time status of the conditions sensed at the hardwired and functional sensors.

Figure 17 shows an example of the System 450 Main screens and System Status screens.

Viewing the System Status Screens

From the Main screens, you can scroll through and view the System Status screens.

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To view the system status screens while the control module LCD is auto-scrolling

Figure 17: Main Screens and System Status Screens Example for a Standard

System 450 Control System Set Up for Differential Control

Main

Screens

System

Status

Screens

Main Screens Auto-Scroll

FIG:main_and_system_status_screens

through Main screens, press (repeatedly) to scroll through and display the Sensor Status screens and the Output Status screens for all sensors and outputs set up in your control system.

When you stop pressing , the Sensor or Output Status screen that is being viewed is displayed for 2 minutes before it times out and reverts to autoscrolling through the Main screens. The 2-minute pause allows you to monitor a sensor that is changing quickly during system setup or operation.

System 450 Main screens display the status at the hard-wired Sn-1, Sn-2, and Sn-3 sensors, and the statuses of the functional sensor Sn-d when used in the control system. The System Status screens also display hard-wired and functional sensor statuses along with output statuses.

Figure 17 shows the Main screens (sensor status) and the System Status screens (sensor and output status) for a standard System 450 control system that is set up for differential pressure control.

Accessing the System Setup Screens

From the Main screens, you can also access the Sensor Setup Start screen and the Output Setup Start screens.

• From the Sensor Setup Start screen, you can set up all of the hard-wired

sensors for your control system. (See Setting Up the Sensors and Transducers on page 45 for procedures on setting up the sensors and transducers, including functional sensors.)

• From the Output Setup Start screens, you can set up each output in your control

system. (See Setting up a Relay Output

on page 47 and Setting up an Analog

Output on page 50 for procedures on setting up outputs.)

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To access and navigate the System 450 Setup Start screens:

Figure 18: Accessing the Setup Start Screens in the System 450 UI

Sensor Setup

Start

SENS

Relay Output

Setup Start

OUTR

Output Relay

OutputAnalog

Setup Start

Analog Output

232

PSI

Sensor S t at us

Displayed

Relay Output

Setup Start

OUTR

Output Relay

Press and hold

+ for 5 seconds

to access the

Setup Start screens.

the Sensor Setup screens.

Press in any Output Setup Start screen to scroll through that output 's set up screens.

Press + simultaneously in any Setup Start screen to return to the Main Screen.

can be connected,

set up, and viewed.

Fig:sys450UI_sys_stup

-- -

---

-- -

1. In the Main (Sensor Status) screen, press and simultaneously and hold for 5 seconds. The Sensor Setup Start (SENS) screen appears (Figure 18).

Up to 10 outputs

Main Screens

Press to scroll through the Sensor Setup Start screens and all of the Analog and Relay Output Setup Start screens.

Press in the Sensor Setup Start screen to scroll through

Sensor Setup Screens

Output 1 Relay Setup Screens

Output 2 Relay Setup Screens

OUTA

Output 3 Analog Setup Screens

2. Press (repeatedly) to scroll through and access the Output Setup Start

3. Depending on the Setup Start screen that you have navigated to, press :

(OUTXx) screens for all of the outputs in your control system. Note: All Setup Start screens have four blinking dashes in the setup value

fields. You cannot select values for the fields in the Setup Start screens.

•in the Sensor Setup Start (SENS) screen to go the Select Sensor 1 Type

(Sn-1) screen and set up the sensors in your control system. (See Setting Up the Sensors and Transducers for procedures on setting up the hard-wired sensors and transducers.)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin44

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• in any Output Setup Start (OUTXx) screen to go to the first output setup

screen for the output. (See Setting up a Relay Output or Setting up an Analog Output for the procedures for setting up outputs.)

Note: You must set up the sensors and transducers in the System 450 UI before

you can set up the outputs in the UI.

In any of the system setup screens, press to return to the setup start screen. In the

setup start screen, press and simultaneously or wait two minutes to return to the Main screens.

Setting Up the Sensors and Transducers

To set up the sensors and transducers in your control system, you must select the correct Sensor Type in the System 450 UI for each sensor and transducer used in your application. You can also select an optional temperature offset value for any temperature sensor that is set up in your control system.

Note: System 450 compatible sensors consist of temperature sensors, humidity

sensors, and pressure transducers. The term sensor refers to all System 450 compatible input devices including transducers, unless noted otherwise.

The Sensor T ype you select for a sensor or transducer automatically determines the condition type, unit of measurement, minimum differential, setup value ranges, and default setup values for each output in your control system that references the sensor.

Standard control modules:

• support temperature sensors, pressure transducers, and humidity sensors

• support configuration of Sn-1, Sn-2, and Sn-3 for any supported Sensor Type

• support the functional sensors HI-2 and HI-3 for the High Input Signal

Selection feature on models with Version 2.00 or later firmware

• support the functional sensor Sn-d for the Differential Control feature on

models with Version 2.00 or later firmware

• require Sn-1 and Sn-2 to be the same Sensor Type to set up the functional

sensors HI-2 and Sn-d

• require Sn-1, Sn-2, and Sn-3 to be the same Sensor Type to set up the

functional sensor HI-3

Note: For a System 450 control system to operate properly, you must wire the

correct sensor or transducer model to the correct sensor input terminals on the control module, and select the correct Sensor Type in the associated Select Sensor Type screen in the System 450 UI. You must also correctly set the active and passive sensor jumpers or switches on the control module. See Table 2 on page 16 for System 450 Sensor Types and their associated values and settings. See Active and Passive Sensors

on page 17

for more information on setting the active/passive switches and jumpers.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 45

Page 46

See T able 11 through T able 16 in Repair and Ordering Information on page 62 and

Figure 19: Sensor Setup Start, Select Sensor Type,

and Select Temperature Offset Screens

System 450 Sensors and T ransducers for S tandar d Control Modules on page 16 for more information on System 450 compatible sensors.

System 450 allows you to select an offset for each temperature sensor (only) in your control system. Whenever you select the °F, HI°F, °C, or HI°C Sensor Type for a sensor, a Select Temperature Offset screen appears after the Select Sensor 3 Type screen for each temperature sensor in your control system.

The Select Temperature Offset screens are:

• Sensor T ypes °F and HI°F, which enables an offset of up to +/- 5°F in 1 degree increments.

• Sensor Types °C and HI°C, which enables an offset of up to +/- 2.5°C in 0.5 degree increments.

The temperature offset adjusts the displayed temperature value, sensed at the sensor, by the of fset value. For example, if the measured value is 72(°F) without an offset, and a -2(°F) offset is selected, the measured value is offset -2(°F) and the displayed value is 70(°F).

To set up the sensor’s Sensor Type and offsets for the temperature sensors:

1. Access the System 450 UI and navigate to the Sensor Setup Start (SENS) screen (Figure 19).

2. In the Sensor Setup Start (SENS) screen, press to go to the next screen.

3. In the Select Sensor 1 Type (Sn-1) screen, press or to scroll through the Sensor Types. When the desired Sensor Type is displayed (blinking), press to save the Sensor Type selection and go to the Select Sensor 2 T ype screen.

4. Repeat Step 3 in the Select Sensor 2 Type (Sn-2) screen and Select Sensor 3 Type (Sn-3) screen if your control system uses a second or third sensor.

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After you have selected the correct Sensor T ype for e ach sensor in your control system, the sensors are set up in the UI and can be selected and referenced by the outputs that you set up in the system.

Note: Beginning with firmware Version 2.00, System 450 standard control

modules also provide for three functional sensors. When Sn-1 and Sn-2 are set up as the same Sensor Type, the High Input Signal Selection functional sensor (HI-2) and Differential Control functional sensor (Sn-d) are enabled and available in the Sensor Selection screens for each output. When Sn-1, Sn-2, and Sn-3 are the same Sensor Type, the High Input Signal Selection functional sensor (HI-3) is also enabled and available. (See High Input Signal Selection on page 24 and Differential Control on page 25 for more information on these functional sensors and the associated control features.)

5. If a temperature Sensor T ype (°F, °C, HI°F , or HI°C) is s elected for a sensor in

your control system, a Select Temperature Offset (OFFS

) screen is

displayed after the Select Sensor 3 Type (Sn-3) screen (for each temperature sensor in your control system). Select the desired temperature offset by

pressing or . Press to save the offset value and go to the next screen.

6. After all of the sensors and temperature offsets are set up:

• Press to return to the Sensor Setup Start (SENS) screen; then press to scroll through the output setup start screens and set up the outputs in your control system. (See Setting up Outputs

on page 47 for procedures on

setting up outputs for your control module.)

• Allow the UI to remain dormant for 2 minutes and the Main screens begin to autoscroll. You may also return to the Main screens immediately by

pressing and simultaneously while a Setup Start screen is displayed.

Setting up Outputs

After setting up the sensors for your System 450 standard control system, you can reference the hard-wired sensors (and any functional sensors that resulted from the hard-wire sensor setup) as you set up the outputs.

Setting up a Relay Output

Relay Outputs provide single and multiple stage on/off control to controlled equipment. A Relay Output can be set up to be a direct acting relay or reverse acting relay (Figure 20 and Figure 21). See Relay Outputs information about System 450 Relay Output operation and the relay ON and OFF states.

on page 18 for more

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 47

Page 48

Figure 20: Direct Acting Relay (OFF < ON)

Set Up to Control Cooling

Relay State

Relay On

Relay Off

Sensed Temperature

OFF

72°F

Direct Acting Relay

OFF < ON

78°F

Figure 21: Reverse Acting Relay (ON < OFF)

Set Up to Control Heating

Relay State

Relay On

Relay Off

Sensed Temperature

64°F

OFF

70°F

Reverse Acting Relay

ON < OFF

When you supply power to a module assembly, the control module polls all of the connected modules, detects all of the outputs in the module assembly, then assigns an output number to each output, and enables a Relay Output Setup Start

(OUTR

) screen for each relay output detected (Figure 22 on page 49).

The first screen in the relay output setup menu flow is the Sensor Selection (SENSx) screen. The sensor you select (Sn-1, Sn-2, Sn-3, HI-2, HI-3, or Sn-d) in

this screen determines the Sensor Type parameter ranges and values available in the remaining output setup screens.

Note: The condition (temperature, pressure, or humidity), unit of measurement,

minimum differential value, default setup values, and condition value ranges available in the output setup screens are determined by the Sensor Type for the sensor that an output references. See Table 2 on page 16 for more information on sensors that are compatible with System 450 standard control modules, their Sensor Types, and the values and ranges associated with each Sensor Type.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin48

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The Relay ON (ONx) screen and Relay OFF (OFFx) screen allow you to select

Figure 22: Relay Output Setup Start Screen and Setup Screen Flow

the condition values at which the relay turns on and turns off. The first time you access the Relay ON (ONx) and Relay OFF (OFFx) screens, the default ON and

OFF values for the referenced sensor appear. The minimum differential value for the condition is determined by the Sensor

T ype of the sensor that an output references. The minimum dif ferential is fixed and is automatically enforced in the setup UI when you select ON and OFF values. After you select the ON value, the condition values within the minimum differential range are not available to select. See Table 5 for minimum differential ranges.

The Minimum Relay ON Time (ONTx) and Minimum Relay OFF Time (OFFTx) screens provide anti-short-cycling control for system equipment by

allowing you to delay the shutdown or startup for up to 300 seconds (5 minutes) after the ON or OFF value is reached.

The Sensor Failure Mode (SNFx) screen allows you to select whether the output relay is on or off if the referenced sensor encounters a sensor or wiring failure. See Sensor Failure Mode on page 26 for more information.

To set up a relay output:

1. Access the System 450 UI and navigate to the desired Relay Output Setup

Start (OUTRx) screen (Figure 22). (See Accessing and Navigating the User Interface on page 42.)

2. In the Relay Output Setup S tart (OUTR

) screen, press to go to the Select

Sensor (SENSx) screen. (The Select Sensor screen does not appear here if the

sensor is already selected for this output. In that case, go to the next step.) Press

or to select the hard-wired or functional sensor (Sn-1, Sn-2, Sn-3, Sn-d, HI-2, or HI-3) you want the output to reference. Press to save the sensor selection and go to the next screen.

3. In the Select Relay ON Value (ON

) screen, press or to select the

temperature, pressure, or humidity value at which the relay turns On. Press to save the ON value and go to the next screen.

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Note: If you selected the Sn-d sensor in Step 2, the Select Relay Differential ON

Value (dONx) screen is displayed. Press or to select the temperature,

pressure, or humidity differential value at which the relay turns On. Press

to save the dON value and go to next screen. (See Differential Control on page 25 for more information.)

4. In the Select Relay OFF Value (OFFx) screen, press or to select the

temperature, pressure, or humidity value at which the relay turns Off. Press to save the OFF value and go to the next screen.

Note: If you selected the Sn-d sensor in Step 2, the Select Relay Differential

OFF Value (dOFFx) screen is displayed. Press or to select the

temperature, pressure, or humidity differential value at which the relay turns OFF. Press to save the dOFF value and go to the next screen. (See

Differential Control

on page 25 for more information.)

5. In the Select Minimum Relay ON Time (ONT

) screen, press or to

select the minimum number of seconds that the relay stays on after the Relay ON (or dON) value is reached. Press to save the ONT value and go to the next screen.

6. In the Select Minimum Relay OFF Time (OFFTx) screen, press or to

select the minimum number of seconds that the relay stays off after the Relay OFF (or dOFF) value is reached. Press to save the OFFT value and go to the next screen.

7. In the Select Sensor Failure Mode (SNFx) screen, press or to select

whether the output relay stays on or off when a sensor failure is detected. Press

to save the Sensor Failure Mode value and go to the next screen.

8. In the Edit Sensor (SENSx) screen:

• If the displayed sensor (Sn-1, Sn-2, Sn-3, Sn-d, HI-2, or HI-3) is the correct sensor for the output relay, the output setup is complete. Press to go to the Relay Output Setup Start screen.

• If the displayed sensor (Sn-1, Sn-2, Sn-3, Sn-d, HI-2, or HI-3) is not the correct sensor for the output relay , press or to select the correct sensor .

Press to save the new sensor selection and go to the Relay Output Setup Start screen. Press again to go to the Relay ON Value screen and repeat Step 3 through Step 8 for the new sensor.

The relay output is set up and saved in the control module. If you need to set up the next output, press to navigate to the next Output Setup Start screen. If you have

completed your control system setup, press and simultaneously to return to autoscrolling through the Main screens.

Setting up an Analog Output

Analog Outputs provide proportional analog control signals to controlled equipment based on the sensed conditions. See Analog Outputs on page 20 for more information.

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When you supply power to a module assembly, the control module polls all of the

Figure 23: Relationship between Setpoint, End Point, Output at Setpoint,

and Output at End Point for an Analog Output That Controls Room Heating

System Output

100%

Less

Greater

65°F

10%

OEP

70°F

= 70 ( ) = 65 ( ) > = 10 (%) = 100 (%)

SP EP SP EP OSP OEP

°F

Band

Fig:sys450_cntrl_rmp_1

connected modules, detects all of the outputs in the module assembly, then assigns an output number to each output, and enables an Analog Output Setup Start

(OUTAx) screen for each analog output detected (Figure 25 on page 52). See Analog Outputs on page 20 for more information.

Note: The condition (temperature, pressure, or humidity), unit of measurement,

minimum differential value, default setup values, and condition value ranges available in the output setup screens are determined by the Sensor T ype of the sensor that you select for the output. See Table 2 on page 16 for more information on sensors that are compatible with System 450 standard control modules, their Sensor Types, and the values and ranges associated with each Sensor Type.

The Setpoint (SP) and End Point (EP) screens allow you to set up a proportional band (or throttling range) for the control loops in your controlled system.

The Output at Setpoint (OSP) and Output at End Point (OEP) screens allow you to select the output signal strength (as a percentage of the total signal strength range) that an analog output sends to the controlled equipment at Setpoint and End Point.

Proportional

OSP

Condition Value

Sensor Type =

The relationship between these four setup values (SP, EP, OSP, and OEP) determines the analog output’s proportional control action, which is indicated on the control module LCD by the control ramp indicator. See Figure 2 on page 10

Direct and Reverse Control Actions for Analog Outputs

on page 20 for more

information. Note: System 450 analog outputs that reference the differential control sensor

(Sn-d) use a Differential Setpoint (dSP) and Differential End Point (dEP) to define the output’s proportional band. See Differential Control for more information.

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Page 52

Figure 24: Relationship between Setpoint, End Point, Output at Setpoint, and

Output at End Point for an Analog Output That Controls Condenser Fan Speed

System Output

100%

Less

Greater

20 bar

OSP

30 bar

90%

= 20 (bar) = 30 (bar) < = 5 (%) = 90 (%)

P50 SP EP SP EP OSP OEP

Proportional

Band

Fig:sys450_cntrl_rmp_2

Figure 25: Analog Output Setup Start Screen and Setup Screen Flow

OEP

Condition Value

Sensor Type =

The Integration Constant (I-C) screen allows you to select an integration constant for the analog signal. Selecting an integration constant other than 0 enables proportional plus integral control action, which in many applications can drive the condition closer to setpoint (than proportional-only control action). See Proportional Plus Integral Contr ol and Integration Constants on page 23 for more information. See Determining the Integration Constant for an Analog Output on page 56 for procedures on determining and testing integration constants in your control system.

The Sensor Failure Mode (SNFx) screen allows you to select whether the analog output signal is off (corresponding to the lowest output capacity) or on (corresponding to the highest output capacity) when a sensor failure is detected. See Sensor Failure Mode on page 26 for more information.

To set up an analog output: Note: In any of the system setup screens, press to return to the setup start

screen. In the setup start screen, press and simultaneously or wait two minutes to return to the Main screens.

1. Access the System 450 UI and navigate to the desired Analog Output Setup

Start (OUTAx) screen (Figure 25). (See Accessing and Navigating the User Interface on page 42 for information on accessing the System Setup screens.)

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2. In the Analog Output Setup Start (OUTAx) screen, press to go to the Select Sensor (SENsx) screen. (The Select Sensor screen does not appear here

if the sensor is already selected for this output. In that case, go to the next step.) Press or to select the hard-wired or functional sensor (Sn-1, Sn-2, Sn-3,

Sn-d, HI-2, or HI-3) that the output references. Press to save the sensor selection and go to the Select Setpoint Value screen.

3. In the Select Setpoint Value (SP

) screen, press or to select the Setpoint

value. (The controlled system drives towards Setpoint [SP] and away from End Point [EP], which together define the proportional band for the analog output.) Press to save the Setpoint value and go to the next screen.

Note: If you selected the Sn-d sensor in Step 2, the Select Differential Setpoint

Value (dSP

) screen is displayed. Press or to select the temperature,

pressure, or humidity differential value towards which the controlled system is driving. Press to save the dSP value and go to the Select

Differential End Point Value (dEPx) screen. (See Differential Control on page 25 for more information.)

4. In the Select End Point Value (EPx) screen, press or to select the End Point value. (The controlled system operates between Setpoint and End Point, which together define the proportional band for the analog output.) Press to save the End Point value and go to the next screen.

Note: If you selected the Sn-d sensor in Step 2, the Select Differential End

Point Value (dEPx) screen is displayed, press or to select the

differential End Point value. (The controlled system operates between differential Setpoint and differential End Point, which together define the proportional band for the analog output.) Press to save the dEP value and go to the next screen. (See Differential Control on page 25 for more information.)

5. In the Select Output Signal Strength at Setpoint (OSPx) screen, press or

to select the value in percent of the output signal strength (0 to 100%),

corresponding to the lowest output capacity, when the sensor is at Setpoint (SPx). Press to save the displayed OSP value and go to the next screen.

6. In the Select Output Signal S tr ength at End Point (OEP

) screen, press or

to select the value in percent of the output signal strength (0 to 100%),

corresponding to the highest output capacity, when the sensor is at the End Point (EP

). Press to save the displayed OEP value and go to the next screen.

7. In the Select Integration Constant (I-Cx) screen, press or to select the integration constant value for the analog output. (See Determining the Integration Constant for an Analog Output on page 56 for more information.) Press to save the displayed I-C value and go to the next screen.

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8. In the Select Sensor Failure Mode (SNFx) screen, press or to select

whether the analog output signal is to be set to its ON or OFF value when a failure of the referenced sensor is detected. (When sensor that is referenced by analog output fails, the ON value sets the output to the OEP value and the OFF value sets the output to the OSP value.) Press to save the displayed SNF value and go to the next screen.

9. In the Edit Sensor (SENSx) screen, you can change the hard-wired or

functional sensor that the output currently references:

• If the displayed sensor (Sn-1, Sn-2, Sn-3, Sn-d, HI-2, or HI-3) is the correct sensor for the output relay, the output setup is complete. Press to go to the Analog Output Setup Start screen.

• If the displayed sensor (Sn-1, Sn-2, Sn-3, Sn-d, HI-2, or HI-3) is not the correct sensor for the output relay , press or to select the correct sensor .

Press to save the new sensor selection and go to the Analog Setpoint Value screen. Repeat Step 3 through Step 8 for the new sensor.

10. Press to return to the Analog Output Setup Start (OUTAx) screen.

The analog output is set up and saved in the control module.

• If the control module does not have a hybrid analog output, press to go to the next Output Setup Start screen.

• If the control module is a C450CPW-100 model with a hybrid analog output (Analog Output 1 only), you can press to navigate to the Pulse Region Hybrid AO Setup Screens.

• If you have completed the control system setup, press and simultaneously to return to autoscrolling through the Main screens.

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Setting up a Pulse Region Hybrid Analog Output

Figure 26: Pulse Region Hybrid AO Setup Start Screen

To set up the Pulse Region of a hybrid analog output for Output 1 on a C450CPW-100 control module:

1. From the Pulse Region Hybrid AO Setup Start Screen (PULSx) for Analog

Output 1, press to go to the output’s Pulse Output Level Selection Screen

(LEVx). Note: Only Analog Output 1 (OUT A1) is capable of generating the Pulse-AO.

Additional AO expansion modules provide a standard 0 to 10 VDC or 4 to 20 mA output signal.

2. In the Pulse Output Level Selection Screen (LEVx), set the Pulse Output

Level to a (percent) value that is higher than required for the EC Motor to rotate. If the motor requires a minimum speed reference of 2 VDC before it rotates, set the Pulse Level higher than 2.5 VDC (25%). Press or to select this Output’ s Pulse Output Level value. Press to save the Pulse Output Level

value and go to the Pulse Period Selection Screen (PERx). Note: Screen example shows the Pulse Output Level set to 25%. Range is 0 to

100%. Set the Pulse Output Level to 0% to disable the pulse output. Set the Pulse Output Level to 100% to use the pulse output over the entire 0 to 10 V output range.

3. In the Pulse Period Selection Screen (PER

), press or to select this

output’ s Pulse Period value. Press to save your Pulse Period value selection and go to the Pulse Region Hybrid AO Setup Start Screen (PULSx).

Screen example shows the Pulse Period set for 2 seconds. Range is 1 to 30 seconds.

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Setting Up Outputs That Reference a P 110 Sensor

The P 110 Sensor Type can monitor negative pressure down to 20 inHg (-10 psi). When referencing a P 110 sensor, System 450 displays negative pressure values in inHg on the Main and System Status screens. But when you set up an output that references a P 110 sensor and the setup value is a negative pressure value, you must select the pressure value in negative psi (not inHg).

Use Table 7 to determine the negative PSI setup value that corresponds to your inHg target value. For example, if you want a relay output to go off when the sensed pressure reaches 7 inHg, you select the value -3.5 (psi) in the output’s Relay OFF Selection screen.

Table 7: inHg Target Values and Equivalent psi Setup Values

inHg Value psi Setup Value inHg Value psi Setup Value

1 -0.5 11 -5.5

2 -1.0 12 -6.0

3 -1.5 13 -6.5

4 -2.0 14 -7.0

5 -2.5 15 -7.5

6 -3.0 16 -8.0

7 -3.5 17 -8.5

8 -4.0 18 -9.0

9 -4.5 19 -9.5

10 -5.0 20 -10.0

When an output is set up for Differential Control and references the P 110 Sensor Type (Sn-1 and Sn-2 are both P 110 Sensor Type), the sensed negative pressure values displayed in the Main screen for differential pressure status (dIFP) are displayed as negative psi values, not inHg values.

Determining the Integration Constant for an Analog Output

The default Integration Constant (I-C) setting for analog outputs is 0 (zero) or no integration constant. An I-C setting of 0 provides a proportional-only analog signal. Many applications do not require you to change this default setting. See Proportional Plus Integral Contr ol and Integration Constants on page 23 for more information.

If you want to apply proportional plus integral to a control loop in your controlled system, here are two methods of determining the best I-C setting for the analog output that controls the loop.

Note: Both of the following methods for determining an I-C setting require you to

install, set up, and operate the control loop in your controlled system under a variety of typical load conditions and observe the response to load changes and different I-C settings.

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Testing the Slowest to Fastest Time Integral to Determine I-C Setting

One method of determining the best I-C setting for a control loop is to observe the controlled system’s operation at the slowest time integral (I-C setting of 1) and then increase the I-C setting one step at a time to determine the best setting.

To determine the best I-C setting for an analog output by testing slowest to fastest time integral:

1. Set up the System 450 control loop for proportional-only control (I-C setting of

0 [zero]), power the controlled system on under typical/steady load conditions, and allow the system to stabilize at a control point somewhere in the proportional band between the Setpoint and End Point values.

2. After the controlled system has stabilized at a control point, set the integration

constant to the slowest time integral (I-C setting of 1) and observe the control point to see if it stabilizes closer to the selected Setpoint.

• If the control point overshoots Setpoint, go to Step 3.

• If the control point stabilizes closer to Setpoint but does not overshoot Setpoint, set the integration constant to the next (faster) time integral and then observe the control point to see if it stabilizes closer to the selected Setpoint.

If the control point does not overshoot Setpoint at new I-C setting, continue to increase the setting and observe the system until the control point overshoots Setpoint, then go to Step 3.

3. When the control point overshoots Setpoint, continue to observe the control point:

• If the control point drifts past Setpoint, reverses, and then drifts back

towards Setpoint and stabilizes at or near Setpoint, go to Step 4.

• If the control point drives significantly beyond Setpoints, then reverses

quickly, drives back past Setpoint, and continues oscillating significantly above and below Setpoint, reset the I-C setting to the previous (slower) time integral and go to Step 4.

4. When the control point stabilizes near Setpoint or drifts slightly above and below Setpoint, operate the control loop under a variety of load conditions, including the maximum load condition:

• If the control point drives past Setpoint and begins to oscillate significantly

above and below Setpoint, reset the I-C setting to the previous (slower) time integral and repeat Step 3.

• If the control point drifts to or past Setpoint and stabilizes near Setpoint,

the current I-C setting for your control loop is correct.

Continue to observe the controlled system until you are sure that the system control point stabilizes somewhere near Setpoint and does not oscillate under all load conditions.

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Using the Response Time to a Step Change to Determine the I-C Setting

Another method for determining the best I-C setting for a System 450 control loop is to temporarily create a step change that shifts the proportional band in your controlled system away from the original or desired proportional band. To do so, measure the (first response) time it takes for your controlled system to drive to and stabilize at the shifted control point. Then shift (step change) the proportional band back to original and measure the (second response) time that it takes to return to the original control point.

You need a digital voltmeter set to VDC to perform this procedure. To determine the best I-C setting for a control loop using the response time to a

step change:

1. Set up the System 450 analog output for proportional-only control (I-C setting of 0 [zero]), power your controlled system on, operate the system under steady load conditions, and allow the control loop to stabilize at a control point within the proportional band between the selected Setpoint and End Point values.

2. Connect a digital volt-meter across the analog output terminals to measure VDC signal strength changes. Measure and record the signal strength voltage at this (original) stable control point.

3. Change the Setpoint and End Point values to shift (step change) the proportional band 25% away from the original proportional band; the VDC signal rises (or drops) immediately and significantly in response to the proportional band shift. Begin timing the response (to the first step change) at this voltage rise (or drop).

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Note: The direction of the voltage changes (rise or drop) depends on whether

Figure 27: Graph Showing Temporary Proportional Band and Control

Point Shifts Used to Measure Response Time in a Heating Application

66°F

Proportional

Band

67°F

100%

to the shifted control point and then measure the ( ) time for the system to drive from

second response

10 VDC

0 VDC

Analog Output Voltage

System Output

Original

Control Point

(and Time)

Rise

the analog output is set up as a direct acting or reverse acting output signal. These instructions refer to the room heating application example shown in Figure 27.

Fig:sys450_cntrl_pont_shft

VDC

Shifted SP

hifted EP

70°F

Condition Value

Measure the (first response) time that it takes for the controlled system to drive from the original control point

the shifted control point back to the original control point. Use the slower response to determine the proper I-C.

71°F

Shifted

Control Point

4. Observe the system response and record the time it takes for the measured

voltage to drive to and stabilize at the shifted control point in the shifted proportional band. (T ypically the shifted control point voltage is slightly higher [or lower] than the original control point voltage.)

5. With the controlled system stabilized at the shifted control point, return

(second step change) the Setpoint and End Point values back to the original proportional band. The signal VDC drops (or rises) immediately and significantly in response to the proportional band shift back to original. Begin timing the response (to the second step change) at this voltage drop (or rise).

6. Observe the system response and record the time it takes for the measured

voltage to drive back to and stabilize at original control point (voltage) in the original proportional band.

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Note: In many applications, the response time away from the original control

point to the shifted control point is different from the response time of the shifted control point back to the original control point, depending on a variety of factors such as system load and system output. Choose the slower of the two measured response times to determine the I-C setting for your application.

7. Use the slower of the two measured response times and the following table to determine which integration constant (I-C setting) to set on the control and test first.

Table 8: Response Times, Reset Rates, and Integration Constants

Slowest Measured Response Time for Control Point Shift

N/A 0 No reset rate

10 to 15 minutes 1 1 hour (3,600 seconds)

6 to 10 minutes 2 30 minutes (1,800 seconds)

3 to 6 minutes 3 15 minutes (900 seconds)

1 to 3 minutes 4 5 minutes (300 seconds)

30 to 60 seconds 5 2 minutes (120 seconds)

10 to 30 seconds 6 1 minute (60 seconds)

Select This Integration Constant (I-C) Value for the Analog Output

Estimated Total Reset Rate for Integration Constant

8. Set the integration constant to the determined I-C setting. Operate and observe the controlled system at a variety of load conditions to determine if the system is stable at the determined I-C setting over the entire output range of the controlled system.

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Troubleshooting System 450 Control Systems

System 450 control modules display error messages when the module detects a sensor, sensor wiring, sensor power, or power supply failure.

T able 9 shows the System 450 error messages that may be displayed, and provides possible causes for the error messages and the solutions for remedying the errors.

Table 9: System 450 Control System Error Messages

Error Screen Problem/Symptom Possible Cause Solution

Sensor failure is detected and < SNF > is displayed (instead of a value).

Outputs that reference the failed sensor are operating in the Sensor Failure Modes selected for the Output at setup.

Sensor, sensor wiring, or sensor connections may have failed to open or close.

Check and the verify integrity of sensor wiring and connections. Measure the voltage between the sensor terminal (Sn1, Sn2, or Sn3) and the low-voltage common (C) terminal (with the sensor connected). See Table 10 for the sensor’s expected voltage range. If the sensor wiring and sensor connections are good, replace the sensor and recheck the voltage.

Sensor power drops below 4.75 VDC and < Err 5V > is displayed (instead of a value).

All Outputs are Off.

Supply power failure is detected and <ErrPWR> is displayed (instead of a value).

All Outputs are Off.

The +5 VDC output is out of the specified range; the output may be shorted to ground at the wiring or an active humidity or pressure sensor may have failed.

Supply power failure; supply voltage is too low or too high.

Check the voltage between the +5 VDC (5V) terminal and any one of the common (C) terminals. The specified voltage range is +4.8 to +5.2 VDC. If the specified voltage is out of range, check the primary supply voltage. (See the solution that follows.) If the primary supply voltage is in range, remove all wiring connection to the 5V terminal and check the voltage between 5V and any C terminal. If the voltage is still out of range, replace the control module. If the voltage is in range (+4.8 to +5.2 VDC), reconnect each sensor one at a time to determine which sensor is causing the voltage drop. Replace the faulty sensor and recheck the output voltage.

Check the supply voltage to the C450 power module. The measured voltage must be between 100 and 130 VAC at the 120 VAC terminals, or between 200 and 260 VAC at the 240 VAC terminals. If the System 450 control system is powered by an external 24 VAC power supply, the voltage must be between 20 and 30 VAC.

Bring the supply into range.

Specified Voltage Ranges for Sensors

T able 10 provides the specified operating voltage range for System 450 sensors. To determine if a sensor is operating in the specified range, measure the voltage between the sensor’s terminal connections at the System 450 control module (the Sn1, Sn2, or Sn3 terminal and one of the C terminals).

If the voltage is out of the specified range, check the sensor wiring for shorted or open circuits. Repair or replace wiring as needed. If the wiring appears to be in good condition, replace the sensor and retest the voltage and operation.

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Table 10: Specified Voltage Ranges between Sensor Terminals

Connected Sensor Specified Voltage Range

Measured between a Sensor Terminal (Sn1, Sn2, or Sn3) and a Common Terminal (C)

A99B Series and TE-6xxx Series Nickel (1,000 ohm at 70F) Temperature Sensors

HE-67xx Humidity Sensor 0.25 to 4.75 VDC (from 5% to 95% RH)

DPT2650 Low-Pressure Differential Sensor 0.25 to 5.0 VDC

P499 Series Electronic Pressure Transducer 0.5 to 4.5 VDC

0.24 to 0.67 VDC (-40F to 250F)

Repair and Ordering Information

T able 11 provides ordering information for the System 450 Series modules that can be used to build standard control systems. See Technical Specifications on page 67 for detailed product specifications for the control modules listed in Table 11.

Table 12 through Table 20 provide ordering information for the System 450 compatible sensors and transducers. For more information on installing System 450 compatible sensors and transducers, see Related Documentation on page 5.

Table 11: System 450 Modules and Accessories Ordering Information

Product Code Number

C450CBN-3C Standard Control Module with LCD, Four-Button Touchpad UI, and Relay Output; provides one

C450CCN-3C Standard Control Module with LCD, Four-Button Touchpad UI, and Relay Output; provides two

C450CPN-3C Standard Control Module with LCD, Four-Button Touchpad UI, and Analog Output; provides one

C450CPW-100C Hybrid Analog Output Control Module with LCD, Four-Button Touchpad UI, Hybrid Analog Output

C450CQN-3C Standard Control Module with LCD and Four-Button Touchpad UI, and Analog Output; provides

C450SBN-3C Relay Output Expansion Module; provides one SPDT line-voltage relay output.

C450SCN-3C Relay Output Expansion Module; provides two SPDT line-voltage relay outputs.

C450SPN-1C Analog Output Expansion Module; provides one analog output (0–10 VDC or 4–20 mA

C450SQN-1C Analog Output Expansion Module; provides two analog outputs (0–10 VDC or 4–20 mA

C450YNN-1C Power Module; provides 24 V to System 450 Module Assembly; 120 VAC or 240 VAC supply

BKT287-1R DIN Rail; 12 in. (0.30 m) long

BKT287-2R DIN Rail; 39-1/3 in. (1 m) long

BKT287-3R DIN Rail; 24 in. (0.61 m) long

BKT287-4R DIN Rail; 14 in. (0.36 m) long

PLT344-1R DIN Rail End Clamps (2 clamps)

Product Description

relay output (SPDT line-voltage relay) for SPDT control.

relay outputs (SPDT line-voltage relays) for SPDT control.

analog output (0–10 VDC or 4–20 mA self-selecting signal) for proportional control.

and Optional High Input Signal Select; provides one hybrid analog output and optional high input signal select primarily used for variable-speed EC motor speed control.

Only Analog Output 1 (OUTA1) can be configured as a hybrid analog output and/or use the High Input Signal Selection feature. These features are not available for any of the other outputs in a System 450 control system that uses the C450CPW-100C as the control module.

two analog outputs (0–10 VDC or 4–20 mA self-selecting signals) for proportional control.

self-selecting signal) for proportional control.

self-selecting signals) for proportional control.

power input terminals.

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Table 12: System 450 Compatible A99B Temperature Sensors and Accessories

Ordering Information

Product Code

Product Description

Number

A99BA-200C PTC Silicon Sensor with Shielded Cable; Cable Length 2 m (6-1/2 ft);

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Temperature Range: -40 to 100°C (-40 to 212°F)

A99BB-25C PTC Silicon Sensor with PVC Cable; Cable Length 0.25 m (9-3/4 in.);

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Temperature Range: -40 to 100°C (-40 to 212°F)

A99BB-200C PTC Silicon Sensor with PVC Cable; Cable Length 2 m (6-1/2 ft);

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Temperature Range: -40 to 100°C (-40 to 212°F)

A99BB-300C PTC Silicon Sensor with PVC Cable; Cable Length 3 m (9-3/4 ft);

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Temperature Range: -40 to 100°C (-40 to 212°F)

A99BB-500C PTC Silicon Sensor with PVC Cable; Cable Length 5 m (16-3/8 ft);

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Temperature Range: -40 to 100°C (-40 to 212°F)

A99BB-600C PTC Silicon Sensor with PVC Cable; Cable Length 6 m (19-1/2 ft);

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Temperature Range: -40 to 100°C (-40 to 212°F)

A99BC-25C PTC Silicon Sensor with High Temperature Silicon Cable; Cable Length 0.25 m (9-3/4 in.)

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Rated for Full Sensor Temperature Range.

A99BC-300C PTC Silicon Sensor with High Temperature Silicon Cable; Cable Length 3 m (9-3/4 ft)

A99BC-1500C PTC Silicon Sensor with High Temperature Silicon Cable; Cable Length 15 m (49 ft)

BOX10A-600R PVC Enclosure for A99 Sensor; Includes Wire Nuts and Conduit Connector (for Outdoor Sensor)

WEL11A-601R Immersion Well for A99 Sensor Liquid Sensing Applications

A99-CLP-1 Mounting Clip for A99 Temperature Sensor

ADP11A-600R Conduit Adaptor, 1/2 in. Snap-Fit EMT Conduit Adaptor (box of 10)

TE-6001-1 Duct Mounting Hardware with Handy Box for A99 Sensor

TE-6001-11 Duct Mounting Hardware without Handy Box for A99 Sensor

SHL10A-603R Sun Shield (for Use with Outside A99 Sensors in Sunny Locations)

Sensor Temperature Range: -40 to 120°C (-40 to 250°F) Cable Jacket Rated for Full Sensor Temperature Range.

1. Refer to the A99B Series Temperature Sensors Product/Technical Bulletin (LIT-125186) on the Johnson Controls®

Product Literature website for more information.

Table 13: System 450 Compatible TE-6000 Series 1,000 Ohm Nickel Temperature

Sensors and Accessories Ordering Information

Product Code

Product Description

Number

TE-6000-x TE6000 Series 1,000 ohm at 70F nickel temperature sensors (only). Only the TE-6000-6 sensor

can be used for the entire HIC and HIF temperature range. Different sensing element packages are available for various applications. For a complete list of compatible 1,000 ohm nickel sensors, including sensor descriptions, technical specifications, and mounting accessories, refer to the

TE-6000 Series Temperature Sensing Elements Product Bulletin (LIT-216288). (System 450

Sensor Types HIC and HIF)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 63

Page 64

Table 14: System 450 Compatible TE-6300 Series 1,000 Ohm Nickel Temperature

Sensors and Accessories Ordering Information

Product Code

Product Description

Number

TE-631x-x TE6300 Series 1,000 ohm nickel averaging and 1,000 ohm thin-film nickel temperature sensors

(only). For a complete list of compatible 1,000 ohm nickel averaging and thin-film nickel sensors,

including sensor descriptions, technical specifications, and accessories, refer to the TE-6300

Series Temperature Sensors Product Bulletin (LIT-216320). (System 450 Sensor Types HIC and

HIF)

Table 15: System 450 Compatible TE-68NT-0N00S 1,000 Ohm Nickel Temperature

Sensor Ordering Information

Product Code

Product Description

Number

TE-68NT-0N00S TE6300 Series 1,000 ohm at 70F nickel averaging and 1,000 ohm thin-film nickel temperature

sensors (only). For a complete list of compatible 1,000 ohm nickel averaging and thin-film nickel sensors, including sensor descriptions, technical specifications, and mounting accessories, refer

to the TE-6300 Series Temperature Sensors Product Bulletin (LIT-216320). (System 450 Sensor

Types HIC and HIF)

Table 16: System 450 Compatible HE67S3 Type Humidity Sensors with Integral A99B

Temperature Sensor Ordering Information

Product Code

Product Description

Number

HE-67S3-0N0BT Wall Mount Humidity Sensor with A99B Type Temperature Sensor: 10 to 90% RH;

HE-67S3-0N00P Duct Mount Humidity Sensor with A99B Type Temperature Sensor: 10 to 90% RH;

1. The HE-67S3 sensors require 24 VAC input and must use the 0–5 VDC output. Refer to the TrueRH Series HE-67xx Humidity Element with Temperature Sensors Product Bulletin (LIT-216245) on the Johnson Controls Product Literature

website for more information, including technical specifications and mounting accessories.

-40 to 121C (-40 to 250F)

Table 17: System 450 Compatible HE6800 Series Humidity Transmitters with

Temperature Sensor Ordering Information

Product Code

Product Description

Number

HE-68N2-0N00WS Wall Mount Humidity Transmitter with Nickel Temperature Sensor: 10 to 90 ±2% RH;

HE-68N3-0N00WS Wall Mount Humidity Transmitter with Nickel Temperature Sensor: 10 to 90 ±2% RH;

1. The HE-6800 transmitters require 24 VAC input and must use the 0–5 VDC output. Refer to the HE-6800 Series Humidity Transmitters with Temperature Sensor Product Bulletin (LIT-12011625) on the Johnson Controls Product Literature website

for more information, including technical specifications and mounting accessories.

0 to 55C (32 to 131F)

Table 18: System 450 Compatible Low Pressure Differential Transducer Ordering

Information

Product Code

1,2

Product Description

Number

DPT2650-0R5D-AB Low Pressure Differential Transducer: 0 to 0.5 in. W.C. (System 450 Sensor Type: P 0.5)

DPT2650-2R5D-AB Low Pressure Differential Transducer: 0 to 2.5 in. W.C. (System 450 Sensor Type: P 2.5)

DPT2650-005D-AB Low Pressure Differential Transducer: 0 to 5.0 in. W.C. (System 450 Sensor Type: P 5)

DPT2650-10D-AB Low Pressure Differential Transducer: 0 to 10 in. W.C. (System 450 Sensor Type: P 10)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin64

Page 65

1. Refer to the Setra Systems Model DPT265 Very Low Differential Pressure Transducer Catalog Page on the

Johnson Controls Product Literature website for more information.

2. The DPT265 sensors require 24 VAC input and must use the 0–5 VDC output. Refer to the Setra Systems Model

DPT265 Very Low Differential Pressure Transducer Catalog Page on the Johnson Controls Product Literature website

for more information.

Table 19: System 450 Compatible P499 Series Transducers with 1/4 in. SAE 45 Flare

Internal Thread with Depressor (Style 47) Ordering Information

Product Code

Product Description

Number

P499RCP-401C -1 to 8 bar; Order WHA-PKD3 type wire harness separately.

P499RCP-402C -1 to 15 bar; Order WH A-PKD3 type wire harness separately.

P499RCP-404C 0 to 30 bar; Order WHA-PKD3 type wire harness separately.

P499RCP-405C 0 to 50 bar; Order WHA-PKD3 type wire harness separately.

P499RCPS100C -10 to 100 psis (sealed for wet and freeze/thaw applications); Order WHA-PKD3 type wire harness

separately.

P499RCPS100K -10 to 100 psis (sealed for wet and freeze/thaw applications); WHA-PKD3-200C wire harness

P499RCPS102C 0 to 200 psis (sealed for wet and freeze/thaw applications); Order WHA-PKD3 type wire harness

P499RCPS102K 0 to 200 psis (sealed for wet and freeze/thaw applications); WHA-PKD3-200C wire harness

P499RCP-101C 0 to 100 psig; Order WHA-PKD3 type wire harness separately.

P499RCP-101K 0 to 100 psig; WHA-PKD3-200C wire harness included.

P499RCP-105C 0 to 500 psig; Order WHA-PKD3 type wire harness separately.

P499RCP-105K 0 to 500 psig; WHA-PKD3-200C wire harness included.

P499RCP-107C 0 to 750 psig; Order WHA-PKD3 type wire harness separately.

P499RCP-107K 0 to 750 psig; WHA-PKD3-200C wire harness included.

included.

separately.

included.

1. The P499 sensors must be powered with the +5 VDC and C terminals and the output is 0.5 to 4.5 VDC. Refer to the

P499 Series Electronic Pressure Transducers Product/Technical Bulletin (LIT-12011190) on the Johnson Controls

Product Literature website for more information.

Table 20: System 450 Compatible P499 Series Transducers with 1/8 in. 27 NPT External

Thread (Style 49) Ordering Information

Product Code

Product Description

(Part 1 of 2)

Number

P499RAPS100C -10 to 100 psis (sealed for wet and freeze/thaw applications); Order a WHA-PKD3 type wire

harness separately.

P499RAPS100K -10 to 100 psis (sealed for wet and freeze/thaw applications); WHA-PKD3-200C wire harness

included.

P499RAPS102C 0 to 200 psis (sealed for wet and freeze/thaw applications); Order WHA-PKD3 type wire harness

P499RAPS102K 0 to 200 psis (sealed for wet and freeze/thaw applications); WHA-PKD3-200C wire harness

P499RAP-101C 0 to 100 psig; Order a WHA-PKD3 type wire harness separately.

P499RAP-101K 0 to 100 psig; WHA-PKD3-200C wire harness included.

separately.

included.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 65

Page 66

Table 20: System 450 Compatible P499 Series Transducers with 1/8 in. 27 NPT External

Thread (Style 49) Ordering Information

Product Code

Product Description

(Part 2 of 2)

Number

P499RAP-102C 0 to 200 psig; Order a WHA-PKD3 type wire harness separately.

P499RAP-105C 0 to 500 psig; Order WHA-PKD3 type wire harness separately.

P499RAP-105K 0 to 500 psig; WHA-PKD3-200C wire harness included.

P499RAP-107C 0 to 750 psig; Order WHA-PKD3 type wire harness separately.

P499RAP-107K 0 to 750 psig; WHA-PKD3-200C wire harness included.

1. The P499 sensors must be powered with the +5 VDC and C terminals and the output is 0.5 to 4.5 VDC. Refer to the

P499 Series Electronic Pressure Transducers Product/Technical Bul letin (LIT-12 011190) on the Johnson Controls

Product Literature website for more information.

Table 21: WHA-PKD3 Wire Harnesses Ordering Information

Product Code

Product Description

Number

WHA-PKD3-200C Plug and 3-Wire Harness for P499 Electronic Pressure Transducers: 2.0 m (6-1/2 ft) cable

WHA-PKD3-400C Plug and 3-Wire Harness for P499 Electronic Pressure Transducers: 4.0 m (13 ft) cable

WHA-PKD3-600C Plug and 3-Wire Harness for P499 Electronic Pressure Transducers: 6.0 m (19-5/8 ft) cable

1. Refer to the P499 Series Electronic Pressure Transducers Product/Technical Bulletin (LIT-12011190) on the

Johnson Controls Product Literature website for more information.

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin66

Page 67

Technical Specifications

C450CPN-3C and C450CQN-3C Control Modules with Analog Output

Product C450CPN-3C and C450CQN-3C: System 450 Control Module models are sensing

controls and operating controls with LCD, four-button touchpad, and SPDT analog output C450CPN-3C: Control Module with one analog output C450CQN-3C: Control Module with two analog outputs

Power Consumption C450CPN-3C: 1.3 VA maximum using 0–10 V out; 1.5 VA maximum using 4–20 mA out

C450CQN-3C: 2.0 VA maximum using 0–10 V out; 2.4 VA maximum using 4–20 mA out

Supply Power Internal Supply Power: C450YNN-1C Power Supply Module

External Supply Power: 24 VAC (20–30 VAC) Safety Extra-Low Voltage (SELV)

(Europe), Class 2 (North America), 50/60 Hz, 10 VA minimum; or 22 to 30 VDC Note: A System 450 control module or module assembly can use an internal or an

external supply power source, but must not be connected to both simultaneously.

Ambient Operating Conditions Temperature: -40 to 66C (-40 to 150F) when using 0–10 VDC outputs;

-40 to 40C (-40 to 104F) when using 4-20 mA outputs

Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

Ambient Shipping and Storage Conditions

Input Signal 0–5 VDC for humidity sensors and static pressure transducers

Analog Output Voltage Mode (0–10 VDC):

Analog Input Accuracy Resolution: 14 bit

Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)

Weight C450CPN-3C: 195 g (0.43 lb)

Compliance North America: cULus Listed; UL 60730, File E27734;

Temperature: -40 to 80C (-40 to 176F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

0.5–4.5 VDC for ratiometric pressure transducers 1,035 ohm at 25C (77F) for A99 PTC temperature sensors 1,000 ohm at 21.1C (70F) for TE-6xxx Nickel temperature sensors

10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1,000 ohm or more The AO operates in Voltage Mode when connected to devices with impedance greater

than 1,000 ohm. Devices that fall below 1,000 ohm may not operate as intended with Voltage Mode applications.

Current Mode (4–20 mA):

Requires an external load between 0–300 ohm The AO operates in Current Mode when connected to devices with impedance less than

300 ohm. Devices that rise above 300 ohm may not operate as intended with Current Mode applications.

DIN rail mounting or direct mounting to a hard, even surface.

C450CQN-3C: 195 g (0.43 lb)

FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits

Europe: CE Mark – Johnson Controls, Inc. declares that this product is in compliance with the essential requirements and other relevant provisions of the EMC Directive and the Low Voltage Directive.

Australia: Mark: C-Tick Compliant (N1813)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 67

Page 68

C450CPW-100C Control Module with Hybrid Analog Output

Product C450CPW-100C System 450 control module is a sensing control and operating control with

LCD, four-button touchpad, and analog output with pulse-width modulation capability.

Power Consumption C450CPW-100C: 1.3 VA maximum using 0–10 V out; 1.5 VA maximum using 4–20 mA out

Supply Power Internal Supply Power: C450YNN-1C Power Supply Module

External Supply Power: 24 VAC (20–30 VAC) Safety Extra-Low Voltage (SELV) (Europe),

Class 2 (North America), 50/60 Hz, 10 VA minimum; or 22 to 30 VDC Note: A System 450 control module or module assembly can use an internal or an external

supply power source, but must not be connected to both simultaneously.

Ambient Operating Conditions

Ambient Shipping and Storage Conditions

Input Signal 0–5 VDC for humidity sensors and static pressure transducers

Analog Output Voltage Mode (0–10 VDC):

Analog Input Accuracy Resolution: 14 bit

Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)

Weight C450CPW-100C: 195 g (0.43 lb)

Compliance North America: cULus Listed; UL 60730, File E27734;

Temperature: -40 to 66C (-40 to 150F) when using 0–10 VDC outputs;

-40 to 40C (-40 to 104F) when using 4–20 mA outputs

Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

Temperature: -40 to 80C (-40 to 176F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

0.5–4.5 VDC for ratiometric pressure transducers 1,035 ohm at 25C (77F) for A99 PTC temperature sensors 1,000 ohm at 21.1C (70F) for TE-6xxx Nickel temperature sensors

10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1,000 ohm or more The AO operates in Voltage Mode when connected to devices with impedance greater than

1,000 ohm. Devices that fall below 1,000 ohm may not operate as intended with Voltage Mode applications.

Current Mode (4–20 mA):

Requires an external load between 0–300 ohm The AO operates in Current Mode when connected to devices with impedance less than

300 ohm. Devices that rise above 300 ohm may not operate as intended with Current Mode applications.

DIN rail mounting or direct mounting to a hard, even surface.

FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits

Australia: Mark: C-Tick Compliant (N1813)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin68

Page 69

C450CBN-3C and C450CCN-3C Control Modules with Relay Output

Product C450CBN-3C and C450CCN-3C: System 450 Control Module models are sensing

controls and operating controls with LCD, four-button touchpad, and SPDT relay output C450CBN-3C: Control Module with one SPDT output relay C450CCN-3C: Control Module with two SPDT output relays

Power Consumption C450CBN-3C: 0.9 VA maximum

C450CCN-3C: 1.3 VA maximum

Supply Power Internal Supply Power: C450YNN-1C Power Supply Module

External Supply Power: 24 VAC (20–30 VAC) Safety Extra-Low Voltage (SELV)

(Europe), Class 2 (North America), 50/60 Hz, 10 VA minimum; or 22 to 30 VDC Note: A System 450 control module or module assembly can use an internal or an

external supply power source, but must not be connected to both simultaneously.

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 for humidity sensors and static pressure transducers

Output Relay Contacts General: 1/2 HP at 120/240 VAC, SPDT

Analog Input Accuracy Resolution: 14 bit

Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)

Weight C450CBN-3C: 209 g (0.46 lb)

Compliance North America: cULus Listed; UL 60730, File E27734;

Temperature: -40 to 80C (-40 to 176F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

0.5–4.5 VDC for ratiometric pressure transducers 1,035 ohm at 25C (77F) for A99 PTC temperature sensors 1,000 ohm at 21.1C (70F) for TE-6xxx Nickel temperature sensors

Specific: AC Motor Ratings 120 VAC 208/240 VAC AC Full-load Amperes: 9.8 A 4.9 A 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

DIN rail mounting or direct mounting to a hard, even surface.

C450CCN-3C: 222 g (0.49 lb)

FCC Compliant to CFR47, Part 15, Subpart B, Class B; Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits

Australia: Mark: C-Tick Compliant (N1813)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 69

Page 70

C450SPN-1C and C450SQN-1C Expansion Modules with Analog Output

Product C450SPN-1C: System 450 Expansion Module with one Analog Output

C450SQN-1C: System 450 Expansion Module with two Analog Outputs

Power Consumption C450SPN-1C: 1.1 VA max using 0–10 V out; 1.3 VA maximum using 4–20 mA out

C450SQN-1C: 1.8 VA max using 0–10 V out; 2.2 VA maximum using 4–20 mA out

Supply Power Internal Supply Power: C450YNN-1C Power Supply Module

External Supply Power: 24 VAC (20–30 VAC) Safety Extra-Low Voltage (SELV) (Europe),

Class 2 (North America), 50/60 Hz, 10 VA minimum; or 22 to 30 VDC Note: A System 450 control module or module assembly can use an internal or an external

supply power source, but must not be connected to both simultaneously.

Ambient Operating Conditions

Ambient Shipping and Storage Conditions

Analog Output Voltage Mode (0–10 VDC):

Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for DIN

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)

Weight C450SPN-1C: 150 g (0.33 lb)

Compliance North America: cULus Listed; UL 60730, File E27734;

Temperature: -40 to 66C (-40 to 150F) when using 0–10 VDC outputs;

-40 to 40C (-40 to 104F) when using 4–20 mA outputs

Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

Temperature: -40 to 80C (-40 to 176F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1,000 ohm or more The AO operates in Voltage Mode when connected to devices with impedance greater than

1,000 ohm. Devices that fall below 1,000 ohm may not operate as intended with Voltage Mode applications.

Current Mode (4–20 mA):

Requires an external load between 0–300 ohm The AO operates in Current Mode when connected to devices with impedance less than

300 ohm. Devices that rise above 300 ohm may not operate as intended with Current Mode applications.

rail mounting or direct mounting to a hard, even surface.

C450SQN-1C: 150 g (0.33 lb)

FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits

Australia: Mark: C-Tick Compliant (N1813)

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin70

Page 71

C450SBN-3C and C450SCN-3C Expansion Modules with Relay Output

Product C450SBN-3C: System 450 Expansion Module with one SPDT output relay

C450SCN-3C: System 450 Expansion Module with two SPDT output relays

Power Consumption C450SBN-3C: 0.8 VA maximum

C450SCN-3C: 1.2 VA maximum

Supply Power Internal Supply Power: C450YNN-1C Power Supply Module

External Supply Power: 24 VAC (20–30 VAC) Safety Extra-Low Voltage (SELV) (Europe),

Class 2 (North America), 50/60 Hz, 10 VA minimum; or 22 to 30 VDC Note: A System 450 control module or module assembly can use an internal or an external

supply power source, but must not be connected to both simultaneously.

Ambient Operating Conditions

Ambient Shipping and Storage Conditions

Output Relay Contacts General: 1/2 HP at 120/240 VAC, SPDT

Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable for DIN

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)

Weight C450SBN-3C: 172 g (0.38 lb)

Compliance North America: cULus Listed; UL 60730, File E27734;

Temperature: -40 to 66C (-40 to 150F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

Temperature: -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 Noninductive at 24/240 VAC Pilot Duty: 125 VA at 24/240 VAC

rail mounting or direct mounting to a hard, even surface.

C450SCN-3C: 186 g (0.41 lb)

FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits

Australia: Mark: C-Tick Compliant (N1813)

C450YNN-1C Power Supply Module

Product C450YNN-1C: System 450 Power Supply Module; 120 or 240 VAC stepdown to 24 VAC

Class 2 (North America) or SELV (Europe)

Supply Power 110/120 VAC or 220/240 VAC at 50/60 Hz (100 mA maximum)

Secondary Power 24 VAC, 10 VA

Ambient Operating Conditions

Ambient Shipping and Storage Conditions

Control Construction Independently mounted control, surface mounted with Lexan

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 71

Temperature: -40 to 66C (-40 to 150F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

Temperature: -40 to 80C (-40 to 176F) Humidity: Up to 95% RH noncondensing; Maximum Dew Point 29C (85F)

® 950 enclosure suitable for DIN

rail mounting or direct mounting to a hard, even surface.

Page 72

C450YNN-1C Power Supply Module (Continued)

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.)

Weight C450YNN-1C: 390 gm (0.86 lb)

Compliance North America: cULus Listed; UL 60730, File E27734:

FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits

Australia: Mark: C-Tick Compliant (N1813)

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 Modular Control Systems with Standard Control Modules Technical Bulletin72

Page 73

System 450 Glossary of Terms

Term Definition

°C Degrees Celsius (°C) appears in the Main (sensor status) screens, along

with the current sensed temperature value, when a Celsius temperature sensor is set up in your control system. °C also designates a Sensor Type that is available when you set up the sensors in the Sensor Setup screens. See Accessing and Navigating the User Interface on page 42 and System 450 Compatible Sensors and Transducers on page 15 for more information.

°F Degrees Fahrenheit (°F) appears in the Main (sensor status) screens, along

with the current sensed temperature value, when a Fahrenheit temperature sensor is set up in your control system. °F also designates a Sensor Type that is available when you set up the sensors in the Sensor Setup screens. See Accessing and Navigating the User Interface on page 42 and System 450 Compatible Sensors and Transducers on page 15 for more information.

Active Sensors Three-wire input sensors that require a low-voltage power source to

generate their input signal. Active sensors are hard-wired to one of the sensor input terminals (Sn1, Sn2, or Sn3), a Common terminal (C), and either the 24 V or 5 V power terminal on the low-voltage terminal block on the control module. All of the System 450 compatible pressure transducers and humidity sensors are active sensors. You must set the associated active/passive jumper or DIP switch to the active position for each active sensor that is hard wired to the sensor terminals. See Active and Passive Sensors on page 17 for more information.

Analog Output System 450 provides self-selecting 0 to 10 VDC signal or 4 to 20 mA

signal analog outputs. The analog outputs can be set up to provide a wide variety of direct and reverse acting proportional control applications, including multi-stage control and proportional plus integral control. Analog outputs are identified in the System 450 UI as OUT A in the Output Setup Start screens and with a percent signal strength and control ramp icon in the System Status screens. See Analog Outputs up an Analog Output on page 50, and Viewing the System Status Screens on page 42 for more information.

bAR bAR appears in the Main (sensor status) screens along with the current

sensed pressure value, when your control system uses one or more pressure transducers with P 8, P 15, P 30, or P 50 Sensor Types. Bar is an SI (International System) unit of measurement for the pressure value displayed in the Main screens. One bar is equal to approximately one atmosphere of pressure, 14.5 psi, and 100 kPa. See System 450 Sensors and Transducers for Standard Control Modules on page 16 for more information.

on page 20, Setting

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Term Definition

Communications Control Module

Provide network connectivity and communications with other network devices. Depending on the control module, System 450 can connect and communicate on RS485 Modbus networks or Ethernet networks. Communications control modules include the C450CRN-x and C450CEN-x models. Refer to the System 450 Series Modular Control

Systems with Communications Control Modules Technical Bulletin (LIT-12011826) for more information.

Control Module The primary module in a System 450 control system, and sometimes the

only module in stand-alone control systems. Each System 450 control system has only one control module, which contains the control system processor, firmware, memory, and LCD. The control module receives the input signals from the system sensors, and it monitors and controls all of the system outputs, including the expansion module outputs. There are four types of System 450 control modules: standard control modules, reset control modules, hybrid analog output control modules, and communications control modules. See Control Modules and User Interface on page 10 and Repair and Ordering Information on page 62 for more information.

dEP

In the Differential End Point (dEPx) screen in the Analog Output Setup screens, select the differential value that analog output number x is driving the controlled loop or process away from. The dEP value, along with Differential Setpoint (dSP) value, establishes the output’s proportional control band. The dEP screen appears in the Analog Output Setup screens (only on standard System 450 control systems) after you set up and select the Differential Sensor (Sn-d) for the output reference. See Differential Control on page 25 for more information.

Differential Control The Differential Contro l feature is used to monitor and maintain a selected

difference in a condition (temperature, pressure, or humidity) between two sensor points within a system, process, or space. See Differential Control on page 25 for more information.

Direct Acting With Direct Acting proportional control, an increase in the sensor signal

results in a proportional increase of the output signal generated to the controlled equipment and vice versa. See Direct and Reverse Control Actions for Analog Outputs on page 20 for more information.

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Term Definition

dSP

In the Differential Setpoint Selection (dSPx) screen in the Analog Output Setup screens, select the target differential value that analog output number x is driving the controlled loop towards. The dSP value, along with Differential End Point (dEP) establishes the output’s proportional control band. The dSP screen appears in the Analog Output Setup screens (only on standard System 450 control systems) after you select the Differential Sensor (Sn-d) for the output reference. See Differential Control on page 25 for more information.

EC Motor Brushless, low-radio-frequency emitting motors, available in variable-

speed (full-range modulating) motor models, multiple-speed (selectable fixed-speeds) motor models, and models capable of being set up as either variable or multiple speed motors. Electronically Commutated (EC) motors are quiet, clean, energy-efficient motors that operate efficiently at low speeds. PENN by Johnson Control EC motors provide a wide range of models for both indoor and outdoor HVAC/R applications. The System 450 control module with hybrid analog output (C450DPW-100) is designed to enhance and optimized EC motor operation at very low speeds. See Sensor Failure Mode on page 26, Hybrid Analog and High

Input Signal Selection Control System Example on page 32, and Setting up a Pulse Region Hybrid Analog Output on page 55 for more information.

In the End Point Selection (EPx) screen in the Analog Output Setup screens, select the condition value that analog output number x is driving the control loop away from and towards the Setpoint (SP) value. The EP and SP values define the proportional band that the analog output is intended to control the condition within. See Direct and Reverse Control Actions for Analog Outputs on page 20 for more information.

Expansion Modules Provide additional relay or analog outputs to your control system.

Expansion module models are available with one or two relay outputs, and one or two analog outputs. All of the outputs in a control system, including the Expansion module outputs are set up in the control module UI. System 450 control systems can control up to 10 outputs, which can be any combination of relay or analog outputs. See Expansion Modules, Module Assemblies, and Outputs on page 13 and Repair and Ordering Information on page 62 for more information.

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Term Definition

Functional Sensor In addition to the wide variety of System 450 compatible hard-wired

temperature, pressure, and humidity sensors available, the System 450 firmware also enables several functional sensors based on the input from one or more of the hard-wired sensors in your control system. Functional sensors include the Reset Setpoint sensor (rES), which enables reset control, setback control, and load balancing; the Differential Control sensor (Sn-d), which enables the Differential Control feature; and the High Input Signal Selection functional sensors (HI-2 and HI-3), which enable the High Input Signal Selection feature. When you select a functional sensor for an output, the output is controlled according to values sensed at multiple sensors and the control logic/calculation designed into the functional sensor . See System 450 Functional Sensors on page 18 for more information.

Hg Hg appears in the Main (sensor status) screens along with the current

sensed pressure value, when your control system uses one or more pressure transducers with P 110 Sensor Types. Hg is an abbreviation of the unit of measurement inHg, which is used to measure negative pressure values (below 0 psi). P 110 Sensor Type is capable of monitoring and displaying negative pressure values. Outputs that reference P 110 sensors requires a unique setup calculation and the negative pressure values are displayed differently in the P 110 s etup and status screens. Se e System 450

Sensors and Transducers for Standard Control Modules on page 16 and Sensor Failure Mode on page 26 for more information.

HI-2 A functional High Input Signal Selection Sensor that references two

hard-wired sensors of the same Sensor Type. When you set up the hard-wired sensors Sn-1 and Sn-2 as the same Sensor Type, functional sensor HI-2 is available for selection when you set up the control system outputs. Outputs that are set up to reference HI-2 use the higher of the two condition values (sensed at Sn-1 and Sn-2) to control the output. High Input Signal selection is available on standard control modules with firmware Version 2.00 or later, hybrid analog output control modules, and communication control modules, but is not available on reset control modules. See High Input Signal Selection

on page 24 for more

information.

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Term Definition

HI-3 A functional High Input Signal Selection Sensor that references three

hard-wired sensors of the same Sensor Type. When you set up the hard-wired sensors Sn-1, Sn-2, and Sn-3 as the same Sensor Type, functional sensor HI-3 is available for selection when you set up the control system outputs. Outputs that are set up to reference HI-3 use the highest of the three condition values (sensed at Sn-1, Sn-2, and Sn-3) to control the output. High Input Signal selection is available on standard control modules with firmware Version 2.00 or later, hybrid analog output control modules, and communication control modules, but is not available on reset control modules. See High Input Signal Selection on page 24 for more information.

High Input Signal Selection

Hybrid Analog Output Control Module

I-C

Functional High Input Signal Selection sensors (HI-2, HI-3) enable an output to reference two or three hard-wired sensors of the same Sensor Type and control the output by responding to the input sensor that is sensing the highest value (temperature, pressure, or humidity) from the two or three sensed values. The High Input Signal Selection feature is on standard control modules with firmware Version 2.00 or later, on the hybrid analog control module, and also on the communication control modules. See High Input Signal Selection on page 24 for more information.

A control module with hybrid analog output provides an analog output on which you can set up a pulse region to control very low speeds on variable speed EC motors. The hybrid analog output control module provides many of the same control types and features as standard control modules. Differential control is not available on hybrid analog output control modules. See Hybrid Analog Output on page 14 for more information.

In the Integration Constant Selection (I-Cx) screen in the Analog Output Setup screens, select the I-C value for analog output x in your control system. There are 7 integration constants values to select from (0 through

6). In most applications, the default integration value 0 (no integration constant, proportional-only control) is the recommended selection. See Proportional Plus Integral Control and Integration Constants on page 23 and Determining the Integration Constant for an Analog Output on page 56 for more information.

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Term Definition

Integration Constant A time-integral variable, which is applied to the proportional control only

analog output to provide Proportional plus Integral (P-I) control on the output. The integration constant determines the rate at which the control readjusts the output signal to drive the process to setpoint. In well-balanced control applications with predictable loads and properly sized equipment, P-I control provides tighter control to setpoint and a faster response to system load changes than proportional-only control. See Proportional Plus Integral Control and Integration Constants on page 23 and Determining the Integration Constant for an Analog Output on page 56 for more information.

INWC INWC and the sensed pressure value appears in the Main (sensor status)

screens on control systems using a sensor with a Sensor Type of P 0.5, P 2.5, P 5, or P 10. INWC represents Inches Water Column (in.W.C.), which is a unit of measurement for measuring very low pressures such as building and duct static pressures and pressure differentials. See System 450 Sensors and Transducers for Standard Control Modules on page 16 for more information.

LEV

In the Pulse Output Level Selection (LEV1) screen in the Pulse Region Setup screens, select the Pulse Level value (as a percentage of the total range, 0–100%) below which the output generates a pulse output signal instead of the standard 0-10 VDC output signal that it generates for the rest

of output signal range. Select a LEV1 value that is greater than the required minimum speed reference for the EC motor that the output is controlling. For example, if the minimum speed reference for your motor is 2 VDC

(20% of the 0-10 VDC signal range), select 25(%) for the LEV1 value. The Pulse Region Setup screens are available only on Analog Output 1 on the hybrid analog output control module. See Sensor Failure Mode on page 26 and Setting up a Pulse Region Hybrid Analog Output

on page 55 for more

information.

Main Screens The default screens that auto-scroll on the LCD during normal control

system operation. The Main screens display the sensor status for each hard-wired and functional sensor on standard control systems. From the Main screens, press (repeatedly) to manually scroll through the sensor

status and output status screens. From the Main screens, press and hold and simultaneously for 5 seconds to go to the System Setup screens. See

Accessing and Navigating the User Interface and Viewing the System Status Screens on page 42 for more information.

Normally Closed (N.C.)

Normally Closed (N.C.) relay contacts are closed when the relay is not energized/activated and open when the relay is energized. On System 450 Relay Outputs, the LCy and LNCy terminals connect to the Normally Closed contacts. See Relay Outputs

on page 18 for more information.

Page 79

Term Definition

Normally Open (N.O.)

OEP

OFFS

OFFT

Normally Opened (N.O.) relay contacts are open when the relay is not energized/activated and closed when the relay is energized. On System 450 Relay Outputs, the LCy and LNOy terminals connect to the Normally Opened contacts. See Relay Outputs

on page 18 for more information.

In the Percent Output Signal Strength at End Point Selection (OEPx) screen in the Analog Output Setup screens, select the value (0 to 100%) of the total signal strength, to be generated by analog output x when the controlled condition is at the selected End Point (EP) value. See Direct and

Reverse Control Actions for Analog Outputs on page 20 and Setting up an Analog Output on page 50 for more information.

In the Temperature Offset Selection (OFFSx) screen in the Sensor Setup screens, select the value (in degrees) that you want the measured (and displayed) temperature value to differ from the actual sensed temperature value. System 450 allows you to select a offset for each temperature sensor in your System 450 control system. You cannot select an offset for pressure or humidity sensors. The x value is the ID number for the temperature sensor you are setting up (Sn-1, Sn-2, or Sn-3). See Setting Up the Sensors and Transducers on page 45 for more information.

In the Minimum Off-Time Selection (OFFTx) screen in the Relay Setup screens, select the number of seconds (0 to 300) that output relay x remains Off after being driven Off by control loop conditions. The minimum off-time feature is typically used to prevent short-cycling of controlled equipment. See Setting up a Relay Output on page 47 for more information.

ONT

OSP

In the Minimum On-Time Selection (ONTx) screen in the Relay Setup screens, select the number of seconds (0 and 300 seconds) that relay output x remains On after being driven On by control loop conditions. The minimum on-time feature is typically used to prevent short-cycling of controlled equipment. See Setting up a Relay Output

on page 47 for more

information.

In the Percent Output Signal Strength at Setpoint Selection (OSPx) screen in the Analog Output Setup screens, select the value (0 to 100%) of the total signal strength, to be generated by analog output when the controlled condition is at the selected Setpoint (SP) value. The x value is the ID number for the output you are setting up. See Direct and Reverse Control Actions for Analog Outputs on page 20 and Setting up an Analog Output on page 50 for more information.

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Term Definition

OUTA

In the Analog Output Setup Start (OUTAx) screen, press to set up or edit the Analog Output Setup screens, or press to go to the next Output

Setup Start screen or return to the Sensor Setup screens. The x value is the ID number for the output you are setting up. See Accessing the System Setup Screens on page 43 and Setting up an Analog Output on page 50 for more information.

OUTR

In the Relay Output Setup Start (OUTRx) screen, press to set up or edit the Relay Output Setup screens, or press to go to the next Output Setup

Start screen or return to the Sensor Setup screens. The x value is the ID number for the output you are setting up. See Accessing the System Setup Screens on page 43 and Setting up a Relay Output on page 47 for more information.

Passive Sensor Passive Sensors are two-wire sensors. All of the System 450 compatible

temperature sensors are passive sensors. You must set the associated active/passive jumper or DIP switch to passive for each passive sensor that is hard-wired to the sensor terminals. See Active and Passive Sensors

page 17 for more information.

PER

In the Pulse Period Selection screen (PER1) in the Pulse Region Setup screens, select the pulse period value (in seconds between 0 and 30) for your EC motor application. For PENN by Johnson Controls EC motors, select a value of 2 (seconds). For other EC motors, start with a value of 1 (second), test the motor application, and increase the value until the optimal pulse period is determined. The Pulse Region Setup screens are available only on Analog Output 1 on the hybrid analog output control module. See Setting up a Pulse Region Hybrid Analog Output on page 55 for more information.

Proportional (Only) Control

Adjusts the control output signal in proportion to the difference between the sense value of the condition and the Setpoint (SP) value for the condition. Proportional (only) controls drive the condition to a control point within the proportional band between End Point (EP) and SP, but not all the way to SP. The larger the load on the system, the further the control point deviates from the target SP value. Proportional (only) control applications are relatively stable and easy to set up, and often the difference between Setpoint and control point (offset error) is predictable and can be compensated for by selecting a SP with offset error calculated into the selection. See Proportional Plus Integral Control and Integration Constants on page 23 for more information.

Page 81

Term Definition

Proportional Plus Integral (P-I) Control

Incorporates a time-integral control action with proportional control action and, if properly set up, a PI control loop can effectively eliminate offset error and enable a controlled system to drive to setpoint even under large constant loads. On a properly sized system with predictable loads, PI control can maintain the controlled system very close to setpoint. See Proportional Plus Integral Control and Integration Constants on page 23 for more information.

PSI When a pounds per square inch (psi) pressure sensor is set up in your

control system, PSI appears in the Main (sensor status) screens, along with the current sensed pressure value. PSI sensors include Sensor T ypes P 100, P 110, P 200, P 500, and P 750. See Accessing and Navigating the User

Interface on page 42 and System 450 Sensors and Transducers for Standard Control Modules on page 16 for more information.

PULS

Pulse Region Setup Start screen. Press to go to the Pulse Region Setup screens, which are used to optimize and enhance low-speed control of EC motors. The Pulse Region Setup screens are only available on Analog Output 1 on the hybrid analog output control module. Press the Menu (M)

button to go to the Output 2 Setup Start (OUTX2) screen for the second output (analog or relay) setup screen. You cannot select values in the Pulse Region Setup Start screen or any other System Setup Start screen. See Setting up a Pulse Region Hybrid Analog Output on page 55 for more information.

Relay Output System 450 provides Single-Pole, Double-Throw (SPDT) relay outputs

rated to 240 VAC. The relay outputs can be set up to provide a wide variety of on/off control applications, including multi-stage control applications. Relay outputs are identified in the System 450 UI as OUTR in the Output Setup Start screens and with ON or OFF in the System S tatus screens. See Relay Outputs 47, and Viewing the System Status Screens

on page 18, Setting up a Relay Output on page

on page 42 for more

information.

Reset Control Modules

Provide Reset Setpoint (RSP) control, real-time clock, Setback scheduling (SbK) control, and load balancing, in addition to providing many of the features and control types provided by standard control modules. Reset control modules include the C450RxN-x models. Reset control modules do not control pressure applications and do not provide Differential Control, High Input Signal Selection, or Hybrid Analog Output control. Communication modules do not provide Reset Setpoint control, real-time clock, Setback scheduling control, or load balancing. Refer to the

System 450 Series Reset Control Systems Technical Bulletin (LIT-12011842) for more information.

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Term Definition

Reverse Acting With Reverse Acting proportional control, an increase in the sensor signal

results in a proportional decrease of the output signal generated to the controlled equipment and vice versa. See Direct and Reverse Control Actions for Analog Outputs on page 20 for more information.

Sensor Type Each System 450 compatible sensor and transducer model is associated

with a specific Sensor Type. Each Sensor Type provides the setup parameters that define the condition (temperature, pressure, or humidity), unit of measurement, usable range, resolution, and minimum proportional band for the associated sensor and the outputs that reference the sensor. You must select a Sensor Type for each sensor connected to your control system (Sn1, Sn2, and Sn3) when you set up the sensors for your control system. When you select a hard-wire sensor or a functional sensor as an output’s reference sensor, the output uses the Sensor Type parameters to define the output’s setup parameters. See System 450 Compatible Sensors and Transducers on page 15 and Setting Up the Sensors and Transducers on page 45 for more information.

SENS

SENS appears in several screens in the System 450 UI and is associated with either the initial sensor setup screens, or the sensor selection and sensor edit screens in the output setup screens.

In the Sensor Setup Start (SENS) screen, press to go to the Sensor Setup screens and set up the hard wire sensors for your control system. There is no output ID number (x) in the Sensor Setup Start screen. See Setting Up the Sensors and T ransducers on page 45 for more information.

In the Sensor Selection (SENSx) screen at the start of the Output Setup screens, select the sensor that you want output x to reference. You can select a sensor or transducer that is hard-wired to the control module (Sn-1, Sn-2, or Sn-3) or you can select a functional sensor (Sn-d, HI-2, HI-3, or rES). After you select the referenced sensor, the firmware provides the output setup parameter values in the remaining Output Setup screens according to the Sensor Type associated with the selected sensor.

In the Edit Sensor (SENSx) screen at the end of the Output Setup screens, you can select a different sensor for the output to reference. If you do not want to change the selected sensor for output x, press to save the output setup values and return to the Output Setup Start screen. If you select a

different sensor in the Edit Sensor (SENS

) screen, you must set up the output again for the new sensor parameter values. See Setting up a Relay Output on page 47 and Setting up an Analog Output on page 50 for more information.

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Term Definition

Sn-1 Input Sensor 1 (Sn-1) as identified in the System 450 UI. Outputs that

reference Sn-1 reference the sensor or transducer that is hard-wired to the Sn1 terminal and a Common (C) terminal on the low-voltage terminal block on the system’s control module. On standard System 450 control systems, the Sn-1 sensor is also used to create the functional Differential Control sensor (Sn-d) and the High Input Signal Selection feature (HI-2, HI-3). See System 450 Compatible Sensors and Transducers on page 15 and Setting Up the Sensors and Transducers on page 45 for more information.

Sn-2 Input Sensor 2 (Sn-2) as identified in the System 450 UI. Outputs that

reference Sn-2 reference the sensor or transducer that is hard wired to the Sn2 terminal and a Common (C) terminal on the low-voltage terminal block on the system’s control module. On standard System 450 control systems, the Sn-2 sensor is also used to create the functional Differential Control sensor (Sn-d) and the High Input Signal Selection feature (HI-2, HI-3). See System 450 Compatible Sensors and Transducers on page 15 and Setting Up the Sensors and Transducers on page 45 for more information.

Sn-3 Input Sensor 3 (Sn-3) as identified in the System 450 UI. Outputs that

reference Sn-3, reference the sensor or transducer that is hard wired to the Sn3 terminal and a Common (C) terminal on the low-voltage terminal block on the system’s control module. On standard System 450 control systems, the Sn-3 sensor is also used to create the High Input Signal Selection feature (HI-3). See System 450 Compatible Sensors and Transducers on page 15 and Setting Up the Sensors and Transducers on page 45 for more information.

Sn-d The functional Differential Control sensor (Sn-d) as identified in the

System 450 UI. Sn-d is available on standard System 450 control systems (only), when Sn-1 and Sn-2 are the same Sensor Type. The differential control value (Sn-d) is defined as Sn-d = (Sn-1) - (Sn-2). Differential Control is available only on standard control modules. See Differential

Control on page 25, Sensor Failure Mode on page 26, and Setting Up the Sensors and Transducers on page 45 for more information.

SNF

In the Sensor Failure Mode (SNFx) screen in the Output Setup screens, select the mode of operation for output x in the event that a sensor (or associated sensor wiring) that the output references fails. SNF modes for relay outputs are ON and OFF. SNF modes for analog outputs are ON (=OEP) or OFF (=OSP). SNF modes for outputs that reference the Reset Setpoint (RSP) are MXSP for reverse acting RSP or MNSP for direct acting RSP. See Sensor Failure Mode

on page 26 for more

information.

Page 84

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507 E. Michigan Street, Milwaukee, WI 53202

® Johnson Controls and PENN are registered trademarks of Johnson Controls, Inc. in the

United States of America and/or other countries. All other trademarks used herein are the property

Building Efficiency

507 E. Michigan Street, Milwaukee, WI 53202

® Johnson Controls and PENN are registered trademarks of Johnson Controls, Inc. in the

United States of America and/or other countries. All other trademarks used herein are the property

Term Definition

Standard Control Modules

System Setup Screens

In the Setpoint (SP) Selection screen in the Analog Output Setup screens, select the target value that analog output x is driving the control loop towards and away from the End Point (EP) value. The SP and EP values define the proportional band that the analog output is intended to control the condition within. See Direct and Reverse Control Actions for Analog Outputs on page 20 for more information.

Provide on/off relay control, direct and reverse acting proportional analog control, multi-stage control, multi-purpose control, stand-alone control, and proportional plus integral control. Standard control modules include the C450CxN-x models. Standard control modules with Version 2.00 and later firmware also provide Differential Control and High Input Signal Selection. Standard control modules do not provide reset control, real-time scheduling, setback control, load balancing, or hybrid analog output control. See Control Modules and User Interface on page 10 and System 450 Standard Control Modules on page 9 for more information.

Enable you to select the values that determine how your control system operates and the condition ranges that your system controls. Depending on the control module type and firmware version, your System Setup screens can include Sensor Setup screens, Relay Output Setup screens, Analog Output Setup screens, Reset Setpoint Setup screens, Time and Day Clock Setup screens, Schedule setup screens, and/or Pulse Setups screens. You access the System Setup screens by navigating to the various System Setup Start screens. See Accessing the System Setup Scr eens on page 43 for more information.

System Status Screens

Provide the current status of each sensor and output in your control system. You access the System Status screens by pressing repeatedly, when the Main screens are auto-scrolling on the display. See Viewing the System Status Screens on page 42 for more information.

Published in U.S.A. www.johnsoncontrols.com

Johnson Controls Penn System 450 Series Technical Bulletin

Specifications and Main Features

Frequently Asked Questions

User Manual

Document Introduction

Related Documentation

System 450 Overview

System 450 Standard Control Modules

Control Modules and User Interface

Expansion Modules, Module Assemblies, and Outputs

Module Assemblies, Output Types, and Output Numbers

Hybrid Analog Output

System 450 Compatible Sensors and Transducers

System 450 Sensors and Transducers for Standard Control Modules

Active and Passive Sensors

System 450 Functional Sensors

Relay Outputs

Analog Outputs

Direct and Reverse Control Actions for Analog Outputs

Proportional Plus Integral Control and Integration Constants

High Input Signal Selection

Differential Control

Sensor Failure Mode

System 450 Standard Control System Examples

Solar Heating Control System Example Using Differential Control

Hybrid Analog and High Input Signal Selection Control System Example

Detailed Procedures

Designing and Building System 450 Control Systems

Selecting, Installing, and Setting Up Sensors

Assembling System 450 Modules

Installing System 450 Components

Locating System 450 Modules

Mounting

Wiring System 450 Components

Wiring System 450 Sensors and Transducers

Setting up a System 450 Standard Control System

Determining Output Numbers and Output Types

System 450 UI Navigation Guidelines

Accessing and Navigating the User Interface

Viewing the System Status Screens

Accessing the System Setup Screens

Setting Up the Sensors and Transducers

Setting up Outputs

Setting up a Relay Output

Setting up an Analog Output

Setting up a Pulse Region Hybrid Analog Output

Setting Up Outputs That Reference a P 110 Sensor

Determining the Integration Constant for an Analog Output

Testing the Slowest to Fastest Time Integral to Determine I-C Setting

Using the Response Time to a Step Change to Determine the I-C Setting

Troubleshooting System 450 Control Systems

Specified Voltage Ranges for Sensors

Repair and Ordering Information

Technical Specifications

C450CPN-3C and C450CQN-3C Control Modules with Analog Output

C450CPW-100C Control Module with Hybrid Analog Output

C450CBN-3C and C450CCN-3C Control Modules with Relay Output

C450SPN-1C and C450SQN-1C Expansion Modules with Analog Output

C450SBN-3C and C450SCN-3C Expansion Modules with Relay Output

System 450 Glossary of Terms