Johnson Controls Penn System 450 Series Technical Bulletin
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Johnson Controls Penn System 450 Series Technical Bulletin

Modular control systems with standard control modules
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with Standard Control Modules
Technical Bulletin
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
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
Detailed Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Designing and Building System 450 Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . 34
Refer to the
System 450™ Series Modular Control Systems with Standard Control Modules
QuickLIT website
for the most up-to-date version of this document.
Code No. LIT-12011459
Issued October 28, 2013
Supersedes July 24, 2012
Technical Bulletin
1

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  • Page 1: Table Of Contents

    System 450™ Series Modular Control Systems with Standard Control Modules Code No. LIT-12011459 Technical Bulletin Issued October 28, 2013 Supersedes July 24, 2012 Refer to the QuickLIT website for the most up-to-date version of this document. Document Introduction ..........5 Related Documentation.
  • Page 2 Selecting, Installing, and Setting Up Sensors ........34 Assembling System 450 Modules .
  • Page 3 C450SBN-3C and C450SCN-3C Expansion Modules with Relay Output ... 71 C450YNN-1C Power Supply Module......... 71 System 450 Glossary of Terms.
  • Page 4 System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin...

  • Page 5: System 450™ Series Modular Control Systems

    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).
  • Page 6 Table 1: Related Documentation (Part 2 of 2) For Information On See Document LIT or Part Number Installing, Wiring, and Setting up System 450 Series Control Module with Part No. 24-7664-2802 System 450 Control Modules with Hybrid Analog Output and High Input Hybrid Analog Output and High Input Signal Selection Installation Instructions Signal Selection...

  • Page 7: System 450 Overview

    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.
  • Page 8 See Table 11 on page 62 for a list of System 450 modules that can be used in 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.

  • Page 9: System 450 Standard Control Modules

    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.) •...

  • Page 10: Control Modules And User Interface

    Control Modules and User Interface 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.
  • Page 11 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.
  • Page 12 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 System 450™...

  • Page 13: Expansion Modules, Module Assemblies, And Outputs

    Expansion Modules, Module Assemblies, and Outputs 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.

  • Page 14: Hybrid Analog Output

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

  • Page 15: System 450 Compatible Sensors And Transducers

    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.

  • Page 16: System 450 Sensors And Transducers For Standard Control Modules

    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...

  • Page 17: Active And Passive Sensors

    Active and Passive Sensors 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.

  • Page 18: System 450 Functional Sensors

    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.
  • Page 19 • the LNO relay contact is open • 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 Table 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.

  • Page 20: Analog Outputs

    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.
  • Page 21 • 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. •...
  • Page 22 Table 4 shows the four control ramp icons and describes their corresponding 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 Control Action...

  • Page 23: Proportional Plus Integral Control And Integration Constants

    Proportional Plus Integral Control and Integration Constants 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).

  • Page 24: High Input Signal Selection

    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.

  • Page 25: Differential Control

    • 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.

  • Page 26: Sensor Failure Mode

    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.

  • Page 27: System 450 Standard Control System Examples

    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.

  • Page 28: Clean Room Control System Example With Temperature, Pressure, And Humidity Control

    Clean Room Control System Example with Temperature, Pressure, and 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.
  • Page 29 Figure 10: Main, System, Status, and Setup Screens For a Clean Room Control System Example That Controls Temperature, Pressure, and Humidity Simultaneously System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin...
  • Page 30 Figure 12 shows the System 450 UI Main screens, System Status screens, and System Setup screens for the control system shown in Figure 11. Solar Panel Sensor C450SBN-x C450CCN-x Expansion C450YNN-1C Control Module Module Power Module OUTR1, OUTR2 OUTR3 WIRING 24V Sn2 Sn1 Sn3 Room...
  • Page 31 Figure 12: Main, System Status, and Setup Screens For a Solar Water Heating Control System Example That Uses the Differential Control Feature System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin...

  • Page 32: Hybrid Analog And High Input Signal Selection Control System Example

    Hybrid Analog and High Input Signal Selection Control System Example 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.
  • Page 33 Figure 14: Main, System Status, and Setup Screens for a Hybrid Analog Output Control System Example with High Input Signal Selection System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin...

  • Page 34: Detailed Procedures

    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.

  • Page 35: Assembling System 450 Modules

    • 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.

  • Page 36: Installing System 450 Components

    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.

  • Page 37: Wiring System 450 Components

    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.
  • Page 38 IMPORTANT: Do not connect supply power to the System 450 modules 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...
  • Page 39 System 450 Expansion Module with Analog Outputs (C450SQN-x) Common terminals (C) are internally connected. Analog Analog Controlled Controlled Device Device System 450 Control Module Low-Voltage with Analog Outputs Analog Output Terminals (C450CQN-x) (on Analog Control and Analog Expansion Modules) Note: C450xPN-x control and expansion modules only have two terminals with AO1 and COM connections.

  • Page 40: Wiring System 450 Sensors And Transducers

    Table 6: System 450 Wiring Terminal and Wire Size Information (Part 2 of 2) Terminal Block Terminal Terminal Function Required Wire Type Label Sizes (on Module Type) Line-Voltage LNC1, Connects equipment control circuit to the line- 28 AWG to 14 AWG Output Relay voltage Normally Closed (LNC) contact on the SPDT LNC2...

  • Page 41: Setting Up A System 450 Standard Control System

    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.

  • Page 42: Accessing And Navigating The User Interface

    • While the Main screens are auto scrolling on the LCD, press and hold 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.

  • Page 43: Accessing The System Setup Screens

    To view the system status screens while the control module LCD is auto-scrolling 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...
  • Page 44 To access and navigate the System 450 Setup Start screens: 1. In the Main (Sensor Status) screen, press simultaneously and hold for 5 seconds. The Sensor Setup Start (SENS) screen appears (Figure 18). Main Screens Press to scroll through the Sensor Setup Start screens and all of the Analog and Relay Output Setup Start screens.

  • Page 45: Setting Up The Sensors And Transducers

    • in any Output Setup Start (OUTX ) 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.
  • Page 46 See Table 11 through Table 16 in Repair and Ordering Information on page 62 and System 450 Sensors and Transducers for Standard 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.

  • Page 47: Setting Up Outputs

    After you have selected the correct Sensor Type for each 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.
  • Page 48 Direct Acting Relay Relay State OFF < ON Relay On Relay Off 72°F 78°F Sensed Temperature Figure 20: Direct Acting Relay (OFF < ON) Set Up to Control Cooling Reverse Acting Relay Relay State ON < OFF Relay On Relay Off 64°F 70°F Sensed Temperature...
  • Page 49 The Relay ON (ON ) screen and Relay OFF (OFF ) screen allow you to select the condition values at which the relay turns on and turns off. The first time you access the Relay ON (ON ) and Relay OFF (OFF ) screens, the default ON and OFF values for the referenced sensor appear.

  • Page 50: Setting Up An Analog Output

    Note: If you selected the Sn-d sensor in Step 2, the Select Relay Differential ON Value (dON ) screen is displayed. Press 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.
  • Page 51 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 an Analog Output Setup Start (OUTA ) screen for each analog output detected (Figure 25 on page 52).
  • Page 52 Proportional Band 100% Sensor Type = = 20 (bar) = 30 (bar) < = 5 (%) = 90 (%) 20 bar 30 bar Less Greater Condition Value Figure 24: Relationship between Setpoint, End Point, Output at Setpoint, and Output at End Point for an Analog Output That Controls Condenser Fan Speed The Integration Constant (I-C) screen allows you to select an integration constant for the analog signal.
  • Page 53 2. In the Analog Output Setup Start (OUTA ) screen, press to go to the Select Sensor (SENs ) 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 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.
  • Page 54 8. In the Select Sensor Failure Mode (SNF ) screen, press 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...

  • Page 55: Setting Up A Pulse Region Hybrid Analog Output

    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 (PULS ) for Analog Output 1, press to go to the output’s Pulse Output Level Selection Screen...

  • Page 56: Setting Up Outputs That Reference A P 110 Sensor

    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).

  • Page 57: Testing The Slowest To Fastest Time Integral To Determine I-C Setting

    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.

  • Page 58: Using The Response Time To A Step Change To Determine The I-C Setting

    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.
  • Page 59 Note: The direction of the voltage changes (rise or drop) depends on whether 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. Proportional Band 10 VDC...
  • Page 60 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.

  • Page 61: Troubleshooting System 450 Control Systems

    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. Table 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.

  • Page 62: Repair And Ordering Information

    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 0.24 to 0.67 VDC (-40F to 250F) at 70F) Temperature Sensors HE-67xx Humidity Sensor 0.25 to 4.75 VDC (from 5% to 95% RH)
  • Page 63 SHL10A-603R Sun Shield (for Use with Outside A99 Sensors in Sunny Locations) 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...
  • Page 64 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.
  • Page 65 Johnson Controls Product Literature website for more information. 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.
  • Page 66 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.

  • Page 67: Technical Specifications

    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.

  • Page 68: C450Cpw-100C Control Module With Hybrid Analog Output

    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.

  • Page 69: C450Cbn-3C And C450Ccn-3C Control Modules With Relay Output

    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.

  • Page 70: C450Spn-1C And C450Sqn-1C Expansion Modules With Analog Output

    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.
  • Page 71 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.
  • Page 72 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.
  • 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.
  • Page 74 Term Definition Communications Provide network connectivity and communications with other network Control Module 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.
  • Page 75 Term Definition In the Differential Setpoint Selection (dSP ) 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.
  • Page 76 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;...
  • Page 77 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.
  • Page 78 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.
  • Page 79 Term Definition Normally Open Normally Opened (N.O.) relay contacts are open when the relay is not (N.O.) 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 (OEP 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...
  • Page 80 (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.
  • Page 81 Term Definition Proportional Plus Incorporates a time-integral control action with proportional control action Integral (P-I) and, if properly set up, a PI control loop can effectively eliminate offset Control error and enable a controlled system to drive to setpoint even under large constant loads.
  • Page 82 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.
  • Page 83 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).
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