Penn System 450 Series Installation Instructions Manual
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Penn System 450 Series Installation Instructions Manual

Penn System 450 Series Installation Instructions Manual

Control modules with analog outputs
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System 450™ Series Control Modules with Analog Outputs
Installation Instructions
C450CPN-4
C450CQN-4
Application
IMPORTANT: Use this System 450™ Series Control Module with Analog Outputs only as an operating control.
Where failure or malfunction of the System 450™ could lead to personal injury or property damage to the
controlled equipment or other property, additional precautions must be designed into the control system.
Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls,
intended to warn of or protect against failure or malfunction of the System 450 Module.
IMPORTANT : Utiliser ce System 450™ Series Control Module with Analog Outputs uniquement en tant que
dispositif de contrôle de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du System 450™
risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la
conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce
cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou
des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de
défaillance ou de dysfonctionnement du System 450 Module.
System 450™ is a family of modular, digital electronic controls that is easily assembled and set up to provide
reliable temperature, pressure, and humidity control for a wide variety of HVACR and commercial and industrial
process applications.
The System 450 control modules allow you to configure custom application-specific control systems with up to
three input sensors and ten (relay, analog, or both) outputs, including control systems that can monitor and control
temperature, pressure, and humidity applications simultaneously.
You can easily install and quickly configure a stand-alone System 450 control module and sensor in the field as a
replacement control for almost any temperature, pressure, and humidity control.
C450CPN-4 and C450CQN-4 models are analog output control modules with LCD and a four-button touchpad user
interface (UI) that allows you to set up a System 450 control system. C450CPN-4 models provide one
self-selecting analog output, and C450CQN-4 models provide two self-selecting analog outputs.
Refer to the System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin
(LIT-12011459) for more detailed information on designing, installing, setting up, and troubleshooting System 450
Series control systems. The System 450 technical bulletin can be accessed and downloaded on the Johnson
Controls® QuickLIT Product Literature website.
System 450™ Series Control Modules with Analog Outputs Installation
Refer to the
QuickLIT website
Instructions
1
Part No. 24-7664-3191, Rev. B
Issued October 2018
for the most up-to-date version of this document.

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  • Page 1 System 450™ Series Control Modules with Analog Outputs Installation Instructions Part No. 24-7664-3191, Rev. B C450CPN-4 Issued October 2018 C450CQN-4 Refer to the QuickLIT website for the most up-to-date version of this document. Application IMPORTANT: Use this System 450™ Series Control Module with Analog Outputs only as an operating control. Where failure or malfunction of the System 450™...

  • Page 2: Installation

    Installation Figure 1: System 450 Module Dimensions, mm (in.) Location Considerations Observe the following System 450 location guidelines: • Ensure that the mounting surface can support the module assembly, mounting hardware, and any (user- supplied) panel or enclosure. • Mount the modules upright and plugged together in a horizontal row where possible (Figure 3). DIN rail mounting is highly recommended.
  • Page 3 3. Clip the remaining power and expansion modules to the right of the control module on to the DIN rail and plug the 6-pin module connectors together (Figure 3). Notes: • DIN rail end clamps can be used to prevent the module assembly from sliding off the DIN rail. •...
  • Page 4 IMPORTANT: Do not apply power to a C450Y Power Module or the 24 VAC/VDC power source for the System 450 modules before finishing wiring and checking all wiring connections. Short circuits or improperly connected wires can result in damage to the modules and void any warranty. IMPORTANT: A System 450 control module and module assembly can be connected to an internal power source (a System 450 power module) or an external power source (24 VAC/VDC power connected to the 24 V and COM terminals on the control module), but must not be connected to both power sources simultaneously.

  • Page 5: Setup And Adjustments

    Figure 3: System 450 Cooling Control System with Condenser Fan Speed Control Example Setup and Adjustments System 450 Component Requirements A System 450 control system consists of one control module, one to three control sensor inputs, and one to ten outputs that provide On/Off control or analog control.
  • Page 6 Note: Every time a module assembly is powered ON, the control module polls all of the modules to identify output type (relay or analog) and assigns a sequential output number (1 to 9 [0 = 10]) to each output starting with the control module output on the left.
  • Page 7 Table 2: System 450 Control Module Output Analog LEDs, LCD, Four-Button Touchpad User Interface Callout Feature Description Status or Setup Value Displays the current input status, output status, or setup parameter value for the displayed input sensor, output, or setup parameter. Press to select a different parameter value when the value is flashing.
  • Page 8 Table 3: System 450 Startup Screen, Main Screens, Status Screens, and Setup Start Screens Information and Procedures LCD Screen Name, Description/Function, User Action, and Example Startup Screen: When you power on a System 450 control module, the LCD displays the control module’s current firmware version for approximately five seconds before it displays the Main (Input Status) screen.
  • Page 9 Accessing the System 450 Setup Start Screens Access the System 450 Setup Start screens from the Main screen. See Table 3 for more information about the Setup Start screens. To access the System 450 setup screens: 1. Power on the module assembly. After the Startup screen appears briefly (displaying the control module firmware version), the Main screen appears on the LCD.
  • Page 10 Table 4: System 450 Sensor Types, Setup Values, and Sensor or Transducer Product Codes (Part 2 of 2) Sensor Unit of Measurement Effective Range of Resolution Minimum Sensor Product Type Code Sensing Usable Increment Proportional Type Number (Condition/Units) Range Value or Control Values Band...
  • Page 11 Refer to the System 450 Series Modular Controls Product Bulletin (LIT-12011458), Catalog Page (LIT-1900549), or the System 450 Series Controls Systems Technical Bulletin (LIT-12011459) for additional ordering information for System 450 compatible sensors and transducers. See Setting Up Outputs That Reference a P110 Sensor on page 12 for information on setting up System 450 outputs that reference the P110 Sensor Type.
  • Page 12 Table 5: System 450 Sensor Setup Screen Information and Procedures (Part 2 of 2) LCD Screen Name, Description/Function, User Action, and Example Temperature Offset Selection Screens: Select a temperature offset for the temperature inputs (only) in your control system. Sensor Type °F enables an offset of +/- 5°F in 1 degree increments. Sensor Type °C enables an offset of +/- 2.5°C in 0.5 degree increments.

  • Page 13: Binary Input Control For Relay Outputs

    Binary Input Control for Relay Outputs You can connect a binary input (dry contacts) to any of the three System 450 control module inputs (Sn1, Sn2, or Sn3) and control the output relays in your control system based on the binary input’s state (open or closed). An input (Sn-1, Sn-2, or Sn-3) that is set up as a binary input can only be referenced by a relay output.

  • Page 14: Differential Control

    If the multi-circuit condensing unit has single speed fan motors, multiple relay outputs can be set up to reference the high input-signal and System 450 can stage the fans on and off based on the pressure sensed at the coil with the highest pressure.

  • Page 15: Setting Up System 450 Outputs

    Setting Up System 450 Outputs After you build and connect power to your control system module assembly, the output numbers and output types for your control system are automatically assigned in the UI. Note: You must set up the input sensors for your control system before you can set up the outputs. See Setting Up System 450 Sensors on page 9 for more information.
  • Page 16 Table 8: System 450 Setup Screen Information and Procedures for Relay Outputs (Part 2 of 4) LCD Screen Name, Description/Function, User Action, and Example Sensor Selection Screen: The sensor you select here determines the output’s setup parameters and values, including condition type, unit of measurement, minimum control band, default setup values, and setup value ranges for several of the remaining output setup screens.
  • Page 17 Table 8: System 450 Setup Screen Information and Procedures for Relay Outputs (Part 3 of 4) LCD Screen Name, Description/Function, User Action, and Example When a relay output references Sn-1, Sn-2, Sn-3, HI-2, or HI-3, the Standard Relay OFF Selection screen appears.
  • Page 18 Table 8: System 450 Setup Screen Information and Procedures for Relay Outputs (Part 4 of 4) LCD Screen Name, Description/Function, User Action, and Example Minimum Relay ON Time Selection Screen: Select the minimum time that the output relay is required to stay on after it turns on.
  • Page 19 Figure 5 shows an example of the analog output setup values and the resulting output signal in a typical space heating application (SP > EP and OSP < OEP). Figure 5: Control Ramp Example for a Typical Heating Application (SP > EP and OSP < OEP) Proportional Band 100%...
  • Page 20 Table 9: Analog Output Control Ramp Icons Control Ramp Control Action Set the Analog Output Value Displayed on Relationships for the Desired Control Action and Control Ramp SP < EP OEP=100% OSP < OEP Output Minimum at SP OSP=0% SP=50°F EP=60°F SP >...
  • Page 21 Setting Up the Integration Constant, Update Rate, and Output Deadband The System 450 Integration Constant (I-C), the Update Output Signal Rate (UP-R), and the Output Signal Strength Deadband (bNd) are powerful tools for controlling the analog outputs and your application’s process loops. Depending on your control system application, setting up the I-C, UP-R, or bNd values to those other than the factory-default values can significantly change the behavior of an analog output.
  • Page 22 Table 10: System 450 Setup Screen Information and Procedures for Analog Output (Part 2 of 4) LCD Screen Name, Description/Function, User Action, Example When an analog output references Sn-1, Sn-2, Sn-3, HI-2, or HI-3, the Standard Setpoint Selection screen appears. Setpoint Selection Screen: Setpoint is the target value that the controlled system drives toward and, along with End Point, defines this output’s proportional band.
  • Page 23 Table 10: System 450 Setup Screen Information and Procedures for Analog Output (Part 3 of 4) LCD Screen Name, Description/Function, User Action, Example Output Signal Strength at End Point Selection Screen: Select the strength of the signal that this output generates when the sensed condition is at the End Point value.
  • Page 24 Table 10: System 450 Setup Screen Information and Procedures for Analog Output (Part 4 of 4) LCD Screen Name, Description/Function, User Action, Example Sensor Failure Mode Selection Screen: Select the output’s mode of operation if a referenced sensor or sensor wiring fails. For outputs that reference functional sensors HI-2, HI-3, or Sn-d, the failure of any of the referenced hard-wired sensors results in a functional sensor failure condition.
  • Page 25 Table 11: System 450 Setup Screen Information and Procedures for Backlight Brightness (Part 2 of 2) LCD Screen Name, Description/Function, User Action, and Example Backlight High Level: The high level defines the brightness when you are making configuration changes to the control and interacting with the UI. The backlight high level can be set to values 1–10; it cannot be turned completely off.
  • Page 26 Figure 6: System 450 Status Screens, Setup Screens, and Menu Flow Example System 450™ Series Control Modules with Analog Outputs Installation Instructions...
  • Page 27 Figure 7: System 450 Status Screens, Setup Screens, and Menu Flow Example for Differential Control System 450™ Series Control Modules with Analog Outputs Installation Instructions...

  • Page 28: Technical Specifications

    Technical Specifications C450CxN Series Control Modules with Analog Outputs Product C450CxN: System 450 Control Module models are sensing controls and operating controls with LCD, four-button touchpad, and analog output. C450CPN-4: Control Module with One Analog Output C450CQN-4: Control Module with Two Analog Outputs Supply Power C450YNN-1 Power Supply Module, or 24 (20-30) VAC Safety Extra-Low Voltage (SELV) (Europe) Class 2 (North America),...

  • Page 29: North American Emissions Compliance

    CHINA www.penncontrols.com ® Johnson Controls and PENN are registered trademarks of Johnson Controls in the United States of America and/or other countries. All other trademarks used herein are the property of their respective owners. © Copyright 2018 by Johnson Controls. All rights reserved.

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System 450 c450cqn-4System 450 c450cpn-4

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