Johnson Controls C450CCN-2, System 450 Series, C450CBN-2 Installation Instructions Manual

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Figure 1: System 450 Module

Dimensions, mm (in.)

127

(5)

Screw

Slots

(7/16)

(2-3/8)

(2-15/16)

1/2 in. Nominal

Trad e Size

Conduit Hole

(7/8)

(1-9/16)

DIN Rail

Clips

FIG:sys450_dims

System 450™ Series Control Modules with Relay Outputs

Installation Instructions

C450CBN-2 C450CCN-2

Part No. 24-7664-2845, Rev. B

Issued January 23, 2012

Supersedes December 15, 2011

Application

IMPORTANT: Use this System 450 Series Control

Module with Relay Output only as an operating control. Where failure or malfunction of the System 450 control module could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the System 450 control module.

System 450™ is a family of modular, digital electronic controls that is easily assembled and set up to provide reliable temperature, pressure, and humidity control for a wide variety of Heating, Ventilating, Air Conditioning, and Refrigeration (HVACR) and commercial/industrial process applications.

The System 450 control modules allow you to configure custom application-specific control systems with up to three input sensors and ten (relay and/or analog) outputs, including control systems that can monitor and control temperature, pressure, and humidity applications simultaneously.

Beginning with firmware Version 2.00, standard System 450 control modules include the High Input-Signal Selection and Differential Control fe atures.

See High Input-Signal Selection

Differential Control

on page 16 for more information.

on page 9 and

Installation

(1/2)

(3/16)

(Four)

(2-3/8)

You can easily install and quickly configure a stand-alone System 450 control module and sensor in the field as a replacement control for almost any temperature, pressure, and humidity control.

C450CxN-2 models are Single-Pole, Double-Throw (SPDT) relay control modules with Liquid Crystal Display (LCD) and four-button touch pad User Interface (UI) that allows you to set up a System 450 control system. C450CBN-2 models provide one SPDT relay. C450CCN-2 models provide two SPDT relays.

Refer to the System 450 Series Technical Bulletin (LIT-12011459) for more detailed information on designing, installing, setting up, and troubleshooting System 450 Series control systems. The System 450 technical bulletin can be accessed and downloaded on the Johnson Controls® Online Product Litera tu re Web site at the following Web address:

http://cgproducts.johnsoncontrols.com/default.aspx

Location Considerations

Observe the following System 450 location guidelines:

• Ensure that the mounting surface can support the module assembly, mounting hardware, and an (

user-supplied) panel or enclosure.

• Mount the modules upright and plugged together a h

orizontal row where po ssible (Figure 3). DI

ounting is highly recommended.

• Mount modules on flat even surf Allow sufficient space for wires and connections.

•

• Mount the modules in locations free of corr vapors and observe the ambient operating conditions listed in the Technical Specifications

System 450™ Series Control Modules with Relay Outputs Installation Instructions 1

aces.

N rail

osive

• Do not mount the modules on surfaces that are

prone to vibration or in locations where radio frequency or electromagnetic emissions may cause interference.

Note: If you mount the modules on an uneven surface, do not damage the housings when tightening mounting screws. Use shims/washers to mount module assembly evenly on the surface.

• Do not install the modules in airtight enclosures.

• Do not install heat-generating devices in an enclosure with the modules that may cause the temperature to exceed the ambient operating limit.

Mounting

Mount System 450 modules on 35 mm DIN rail (recommended) or directly to an even wall surface. To mount modules on DIN rail:

1. Provide a section of 35 mm DIN rail that is longer than the module assembly width, and mount the DIN rail horizontally in a suitable location using appropriate mounting hardware/fasteners.

2. Clip the control module on the rail, position the upper DIN rail clips on the top rail, and gently snap the lower clips onto the rail.

3. Clip the remaining power and/or expansion modules to the right of the control module on to the DIN rail and plug the 6-pin module connectors together (Figure 3).

Note: If your System 450 control system uses a power module, the power module must be plugged into the right-hand side of the control module.

To direct-mount modules to wall surfaces:

Refer to the control sensor installation instructions for information on locating and mounting control sensors.

Wiring

See Figure 2 and Table 1 for electrical termination locations and wiring information. See Technical

Specifications on page 23 for electrical ratings.

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 da mage to the modules and void any warranty.

1. Plug the modules together, remove the module covers, place the assembly against wall surface horizontally in a suitable location and mark the mount hole locations on the surface (Figure 1).

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

3. Place the assembly over screw heads on the mounting slots, and carefully tighten the mounting screws.

IMPORTANT: Do not connect 24 VAC supply power to the System 450 modules before finishing wiring and checking all wiring connections. Short circuits or improperly connected wires can result in damage to the modules and void any warranty.

IMPORTANT: Run all low-voltage wiring and cables separate from all high-voltage wiring. Shielded cable is strongly recommended for input (sensor) and analog output cables that are exposed to high electromagnetic or radio frequency noise.

System 450™ Series Control Modules with Relay Outputs Installation Instructions2

Figure 2: C450CxN-2 Wiring Terminals

are connected

internally.

Internal

SPDT Relay

Normally Closed/Off

Position

LNC1

LNO1

LC1

Low Voltage (<30 V)

Dry-Contact, Line-Voltage

Relay Output Terminals

(See

for Electrical Ratings.)

Technical S pecificatio ns

Some models have

and termi nal block labeled

LNC2, LNO2, and LC 2.

FIG:sys450_rly_cntrl_wir

not

relay and do supply any power to the application.

Note:

The relay output terminals connect to an internal SPDT

Supply Power and

Control Sen sor Term inals

24V

Sn2

Sn3

Sn1

6-Pin

Module

Connector

a second output relay

Table 1: System 450 Terminal Wiring Information

Label Terminal Function Wire Sizes

24V Accepts 24 V AC supply power , when a C450YNN power module is not connected,

and provides power terminal for 24 VAC (humidity) sensors.

5V Provides 5 VDC power for active sensors. Sn-1, Sn-2,

Sn-3

(Three Terminals)

LNC1, LNC2 Connects control circuit to the Normally Closed (N.C.) contact on the SPDT relay. LNO1, LNO2 Connects control circuit to the Normally Open (N.O.) contact on the SPDT relay. LC1, LC2

Accepts passive or active (0–5 VDC) input signals from sensors. Note: You must position the Active/Passive Sensor Jumper (Figure 3 and

Figure 6) correctly for each sensor in your control system before operating the system. See Setting Active/Passive Sensor Jumpers for more information.

Provide low-voltage Common connections for 24 VAC power and passive or active sensors connected to the 5V, Sn1, Sn2, and Sn3 terminals.

Note: The three C terminals are connected internally and can be connected to ground in the field.

Connects line (power) to Common (C) on the SPDT

relay.

Common (C) terminals

0.08 mm 28 AWG to 16 AWG

0.08 mm 28 AWG to 14 AWG

to 1.5 mm

to 2.5 mm

1. See Internal SPDT Relay insert in Figure 2 for more System 450 relay contact and terminal information. See T echnical Specifications for SPDT relay electrical ratings.

System 450™ Series Control Modules with Relay Outputs Installation Instructions 3

Figure 3: Example System 450 Heat/Cool System with Condenser Fan Speed Control

L2 L1

4-20 mA

Signal

L1 L2

Note:

Sn-1 Sn-2 Sn-3

Active/ P assive Sens or Jumpers

Figure 4: System 450 Control Module Output Relay LEDs,

LCD, Four-Button Touch Pad User Interface

Output Number:

with the stat us or setup va lue shown on the scr een. Output nu m bers are automati cally determi ned by the outp uts' physical positions (left to right) in the modul e as sembly. (Here, 4 = Output 4.)

Control Ramp Icon:

Displays whether an

or reverse acting, and w hether the out put signal str ength is at minimum or maximum when the sensed prop er t y is at Setpoint . The control ramp icon displayed i s determi ned by the outp ut's SP, E P, 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 set up start scr een.

Status or Setup Id entifier: or

OSP

Displays the

unit of me asurement, out put, sensor number,

setup parameter for th e di splayed status or setup val ue. ( Here, the set up identifier represents % output signal strength at setpoint.)

Up and Down Buttons:

Press or to select a differ ent value for an y fl ashing value in the setup val ue f ield. In the Mai n ( sensor status) screens, pr ess and hold both and for 5 second s to access the Set up Start screen s.

Status or Setup Value:

Displays th e current input stat us, output status setup param et er value for t he displayed i nput sensor, outp ut and/or setup parameter. select a differ ent paramet er value when th e value is flashing. (Here, 1 00 = 100%.)

Press or to

Green LEDs

associat ed relay output is on or off .

In the Main s c reens,

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

OSP

In 120 VAC app li c ations, L1 mu st be the Hot lead

and L2 must be the Neutral/Common lead.

0-10 VDC or

Analog Output

COM

AO2

AO1

FIG:sys450_app_exmpl

Light-Emitting Diode (LED):

on Relay Control Mod ul e and Relay Expansion Modules (only) indicates if the

System 450™ Series Control Modules with Relay Outputs Installation Instructions4

value tha t identifies the output associ at ed

analog out put (only) is set a s direct-acti ng

FIG:sys450cntrl_m odul

Next Button:

press to scroll through the system st atus screens. In a setup screen, p r ess to save

Displays a numerical

Setup and Adjustments

Figure 5: Active/Passive Sensor Terminal Pin

Block Set Up for the Example in Figure 3

Sensor 2:

(or removed) sets Sn-1 to Active (Pressure).

Jumper positioned across two

pins sets Sn-2 to Passive (Temperature).

Jumper positioned across two

pins sets Sn-3 to Passive (Temperature).

Sensor 3:

Sn-1 Sn-2

Sys450_jmprs

System 450 Component Requirements

A System 450 control system consists of one control module, one to three control sensor inputs, and one to ten outputs that provide On/Off control and/or analog control. Figure 3 shows an example System 450 module assembly with two input sensors and three outputs (two relay outputs and one analog output).

Sn-

Sensor 1:

Jumper positioned on one pin

Setting Up a System 450 Module Assembly

To set up a System 450 module assembly:

1. Determine the controlled conditions, sensor types, and value ranges required for your application, and select the appropriate System 450 sensor types.

2. Determine the number and type (rela y or analog) of outputs required to control your application, and select the appropriate System 450 control module and expansion modules to provide the outputs.

3. Assemble the control and expansion modules in the proper order, starting with the control module on the left.

Note: If you use a C450YNN-1 power module, it must be plugged into the control module. Plug in any expansion modules (for your control system) to the right of the power module.

4. Apply supply power to the module assembly.

You can now set up your control system in the System 450 reset control module UI.

Note: After you power on your module assembly, you can set up your control system in the control module UI before wiring the sensors or outputs to your assembly.

Setting Active/Passive Sensor Jumpers

Before putting your System 450 reset control system into operation, you must set up each sensor in your system as either passive or active by positioning the jumper on the terminal pins on the terminal block located below the sensor terminal block. See Figure 3.

Temperature sensors are passive (two-wire) sensors and the corresponding jumpers must be positioned across both pins. Humidity and pressure transducers are active (three-wire) sensors and corresponding jumpers must be positioned on one pin (or removed completely). Figure 5 shows the jumper positions for the System 450 example shown in Figure 3.

Setting Up a Control System in the User Interface

System 450 control modules have a backlit LCD and a four-button touch pad UI (Figure 4) that enable you to set up your control system. To set up a control system in the System 450 UI:

1. Build your control system module assembly and connect it to power. See Setting Up a System 450 Module Assembly on page 5.

Note: Every time a module assembly is powered ON, the control module polls all of the modules to identify output type (relay or analog) and assigns a sequential output number (1 to 9 [0 = 10]) to each output starting with the control module output on the left. The output numbers identify each output’s setup screens in the UI. (See Figure 4.)

2. Access the System 450 setup screens in the UI. See Accessing the System 450 Setup Start Screens on page 7.

3. Set up the control system inputs in the UI. See

Setting Up System 450 Sensors

4. Set up the control system outputs in the UI. See

Setting Up System 450 Outputs

IMPORTANT: Do not change the module positions after a System 450 control system is set up in the UI. System 450 control logic is set up in the UI according to the Sensor Types, the o utput types, an d the outpu t numbers. Changing modules or module positions in a module assembly that is already set up in the UI can change the output numbers, output type s, an d the setup values of the assembly outputs, which requires setting up the outputs again.

Use the worksheet provided on page 24 to plan and record the settings for your System 450 control system.

on page 7.

on page 10.

System 450™ Series Control Modules with Relay Outputs Installation Instructions 5

Viewing the Startup, Main, and System Status

xxxx

OUT

SENS

-- -

OUTR

-- -

OUTA

-- -

Screens

Every time you connect power to a System 450 control module, the Startup screen appears for several seconds before the Main screens appear. The Startup screen displays the current firmware version for the module. See Table 2 and System 450 Firmware Versions for more information.

After you install, wire, power on, and set up your control system in the UI, the Main screens appear on the LCD, immediately after the Startup screen. During normal operation, the Main screens automatically scroll through the current status of each sensor in your control system. See Table 2 for more information.

Table 2: 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 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. Screen example shows System 450 firmware version number 2.00 on the top of the screen. The number on

the bottom of the screen (indicated in this example with xxxx) identifies the Johnson Controls firmware. Main (Input Status) Screens: During normal operation, the Main screens automatically scroll through the

232

PSI

current status of each input sensor in your control system and display the sensor number, the unit of measurement, and the sensed condition value. See Figure 7 and Figure 8 for example Main screens.

Note: Main screens are view-only; selections are not made in Main screens. The Main screens are the System 450 default screens. After 2 minutes of inactivity in any screen, the UI reverts to the Main screens.

While the Main screens are scroll in g, you can press System Status screens for all inputs and outputs in your control system.

While the Main Screens are scrolling, you can press and hold and for 5 seconds to access your control system’s Setup Start screens. The screen examples show Sensor 1 sensing 232 psi and Sensor 2 sensing 74°F.

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

your control system. System Status screens are view-only; selections are not made in Status screens. Relay output status screens display output number and relay status (On/Off). Analog output status screens display output number, signal strength, and control ramp icon.

Press control system. When you stop pressing remains displayed for 2 minutes before returning to the Main Screens.

The screen examples show Output 1 relay is On and Output 3 signal strength is 61% of the total signal strength. The control ramp icon in the bottom screen example indicates that the Analog Output is set up with SP<EP and OSP<OEP. See S Selection Control for information about ramp icons.

Setup Start Screens: Setup Start screens are view-only screens, from which you can access the setup screens for the sensors or the displayed output; selections are not made in Setup Start screens.The Sensor Setup Start screen is the first screen displayed when you access the System 450 setup screens.

Note: The numerical order and type of Output Setup Start screens are determined by the modules selected for your System 450 control system and their physical order in the control system module assembly. See Setting Up a Control System in the User Interface

From the Sensor Setup Start screen, press repeatedly to scroll through the Output Setup Start screens for all of the outputs in your control system. When a Setup Start screen is displayed, press

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

simultaneously. Also, the UI returns to the Main screen after 2 minutes of inactivity in any screen. The screen examples show the Sensor, Relay Output 1, and Analog Output 3 Setup Start screens.

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

etting Up an Analog Output for Standard Control or High Input-Signal

to go to the setup screens for the sensors or the output displayed in the screen.

The System Status screens display the current status of each input and output in your control system. With the Main screen displayed, press repeatedly to scroll through and view all of the status screens in your control system. See Table 2 for more information about the System Status screens.

System 450 Firmware Versions

System 450 firmware versions identify the features available on System 450 modules. Standard System 450 control modules with Version 2.00 firmware and later include the High Input-Signal Selection and Differential Control features. See High Input-Signal Selection on page 9 and Differential Control on page 16 for more information.

repeatedly to scroll through and view the

, the displayed Status screen refreshes its value and

on page 5 for more information.

and

System 450™ Series Control Modules with Relay Outputs Installation Instructions6

Accessing the System 450 Setup Start Screens

Access the System 450 Setup Start screens from the Main screen. See Table 2 for more information about the Setup Start screens.

To access the System 450 setup screens:

1. Apply power to your module assembly. After the Startup screen appears briefly (displaying the control module firmware version), the Main screen appears on the LCD.

3. Press

repeatedly to scroll through the Output

Setup Start screens. See Figure 7. Note: The UI returns to the Main screens after 2

minutes of inactivity in any screen in the UI.

Setting Up System 450 Sensors

You must set up the input sensors for your control system before you can set up any of outputs. T o set up the input sensors you must access the setup screens. See Accessing the System 450 Setup Start Screens

2. In the Main screen, press and hold

and

simultaneously for 5 seconds to access the setup screens and to go to the Sensor Setup Start screen.

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

Table 3 provides information about System 450 sensors, Sensor Types, parameter values, and specified sensor/transducer product code numbers.

Table 3: System 450 Sensor Types, Setup Values, and Sensor/Transducer Product Codes

Sensor Type

Unit of Measurement Value (Condition/Units)

Effective Sensing Range

Range of Usable

Values

Resolution Increment Value

Minimum Proportional or Control

Sensor Product Type Number

Band

°F °F (Temperature/degrees) -46 to 255 -40 to 250 1 1 A99B-xxx °C °C (Temperature/degrees) -43 to 124 -40 to 121 0.5 0.5 A99B-xxx

rH % (Humidity/%RH) 1 to 100 10 to 95 1 2 HE-67Sx-xxxxx

P 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 P100 PSI (Pressure/psi) 0 to 100 0 to 100 0.5 1 P499Rxx-101C

P110 P200 PSI (Pressure/psi) 0 to 200 0 to 200 1 1 P499Rxx-102C P500 PSI (Pressure/psi) 0 to 500 90 to 500 1 5 P499Rxx-105C P750 PSI (Pressure/psi) 0 to 750 150 to 750 2 6 P499Rxx-107C HI°F °F (Temperature/degrees) -50 to 340

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

Hg/PSI (Pressure/Hg-psi) -10 to 100 -10 to 100 0.5 1 P499Rxx-100C

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

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

170

-40 to 340

-40 to 170

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 (Sn1 and Sn-2), the Range of Usable Values is twice as large as a single sensor. Each Sensor Type has an equal number of positive and negative values. See Table 9 for the Range of Usable Values when an output references Sn-d.

2. Refer to the System 450 Series Modular Controls Product Bulletin (LIT-12011458), Catalog Page (LIT-1900549), or Technical Bulletin (LIT-120114 59) for additional ordering information for System 450 compatible sensors and transducers.

3. See Setting Up Outputs reference the P110 Sensor Type.

That Reference a P110 Sensor on page 9 for information on setting up System 450 outputs that

System 450™ Series Control Modules with Relay Outputs Installation Instructions 7

4. Many of the 1,000 ohm Nickel temperature sensors that can be set up as HI°F or HI°C Sensor Types are not designed for

SENS

-- -

P500

Sn-1

°F

Sn-2

Sn-3

-3

OFFS

use across the entire Range of Usable Values for HI°F and HI°C Sensor Types. Refer to the Technical Specifications sections in the TE-6000 Series Temperature Sensing Elements Product Bulletin (LIT-216288), the TE-6300 Series

Temperature Sensors Product Bulletin (LIT-216320), and the TE-6800 Series Temperature Sensor Product Bulletin (LIT-12011542) to determine the temperature range that the various 1,000 ohm Nickel temperature sensors are specified to

operate in.

T ab le 4 provides sensor setup information, procedures, and example screens. Figure 7 on page 21 provides a System 450 UI setup example.

Table 4: System 450 Sensor Setup Screen Information and Procedures (Part 1 of 2)

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

Sensor Setup Start Screen: The Sensor Setup Start screen is the first screen displayed when you

access the System 450 setup screens. From the Sensor Setup Start screen you can navigate to the Output Setup Start screens or the Sensor Setup screens. See Figure 7.

Note: You must set up the input sensors before you can set up the control system outputs. The Sensor Setup Start screen is view-only; selections are not made in Setup Start screens.

1. In the Sensor Setup Start screen, press (Sn-1) and begin setting up the sensors in your control system.

The screen example shows the Sensors Setup Start screen with flashing dashes. Sensor Type Selection Screens: The Sensor Type you select for an input sensor automatically

determines the setup parameters and values for each output that is set up to reference that sensor. See Table 3 for information about System 450 sensors/transducers, Sensor Types, condition type, units of measurement, minimum control band or proportional band, setup values, value ranges, and product code numbers.

Note: For outputs to operate properly, the selected Sensor Type must match the sensor/transducer model wired to the control module, and the sensor/transducer must be wired to the proper control module input terminals.

2. In the Sn-1 Sensor Type Selection screen, press or to select the desired Sensor Type. Press

3. In the Sn-2 Sensor Type Selection screen, press or to select the desired Sensor Type. Press to save your selection and go to the Sn-3 Sensor Type Selection screen.

Note: If your control system does not use three input sensors, simply press flashing in a Sensor Type Selection screen to save no Sensor Type and go to the next setup screen.

4. In the Sn-3 Sensor Type Selection screen, press or to select the desired Sensor Type. Press

• go to the Temperature Offset Setup screen for the first temperature sensor in your system.

• return to the Sensor Setup Start Screen, if your control system has no temperature sensors.

Note: Beginning with firmware Version 2.00, if you select the same Sensor Type for Sn-1 and Sn-2, two

additional functional sensors (Sn-d and HI-2) are available for selection when you set up the control system outputs. If you select the same Sensor Type for Sn-1, Sn-2 and Sn-3, then functional sensor HI-3 is also available for selection when you set up outputs. See High Input-Signal Selection

Differential Control

The screen examples show Sn-1 with the P500 Sensor Type selected; Sn-2 with the °F Sensor Type selected; and Sn-3 with the no Sensor Type selected.

T emperature Offset Selection Screens: Select a temperature offset for the temperature inputs (only) in your control system.

Sensor Type °F enables an offset of +/- 5°F in 1 degree increments. Sensor Type °C enables an offset of +/- 2.5°C in 0.5 degree increments.

Note: The temperature offset changes the displayed temperature value by the selected offset value.

5. Press or to select the desired temperature offset value. Press :

• to go to the next Temperature Offset Selection screen (if there are additional temperature sensors in your control system) and repeat this step for each temperature sensor.

• to return to the Sensor Setup Start screen.

The screen example shows an OFFS value of -3 (°F) for Sensor 2. Therefore a sensed temperature value of 75 (°F) at Sensor 2 is displayed as 72 (°F).

to save your selection and go to the Sn-2 Sensor Type Selection screen.

to save your selection and either:

on page 16 for more information.

to go to the first Sensor Type Selection screen

while the two dashes are

on page 9 and

System 450™ Series Control Modules with Relay Outputs Installation Instructions8

Table 4: System 450 Sensor Setup Screen Information and Procedures (Part 2 of 2)

SENS

-- -

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

Sensor Setup Start Screen: When you have finished setting up all of the sensors for your control

system, the display returns to the Sensor Setup Start screen. Note: Y ou can edit the sensor set up values at any time, if required. However, changing the Sensor Type

for a sensor that is referenced by an output requires setting up the output again to the new Sensor Type values.

After the sensors are set up for your control system, you can:

• Press to scroll through the Output Setup Start sc ree n s and begin setting up your system

• Press and simultaneously to return to the Main screens. The screen example shows Sensors Setup Start screen with flashing dashes.

outputs.

Setting Up Outputs That Reference a P110 Sensor

The P110 Sensor Type can monitor negative pressure down to 20 InHg (-10 psi). When referencing a P110 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 P110 sensor and the setup value is a negative pressure value, you must select a pressure value in negative psi.

Use Table 5 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 5: InHg Target Values/PSI Setup Values

InHg 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

psi Setup Value

InHg Value

psi Setup Value

Note: When an output references the P110 Sensor

Type and the output is set up for Differential Control (Sn-1 and Sn-2 are P110 Sensor Type), the negative pressure values displayed in the differential pressure System Status screen (dIFP) are displayed as negative psi values, not InHg values. See Differential Control

page 16 for more information.

High Input-Signal Selection

Beginning with firmware V ersion 2.00, standard System 450 control modules include the High Input-Signal Selection control capability.

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/or analog outputs based on the highest condition value sensed by the two or three referenced sensors.

In two sensor applications (HI-2), Sn-1 and Sn-2 must be the same Sensor Type. In three sensor applications (HI-3), Sn-1, Sn-2, and Sn-3 must be the same Sensor Type.

A System 450 control system, using High Input-Signal Selection, can monitor the outlet pressures of two condenser coils in a multi-circuit condensing unit using two pressure sensors of the same type; one connected to each coil outlet.

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.

If the multi-circuit condensing unit has variable speed fan motors, one or more analog outputs can be set up to reference the high input-signal and control the fan motor speeds based on the pressure sensed at the coil with the highest pressure.

System 450™ Series Control Modules with Relay Outputs Installation Instructions 9

Setting Up System 450 Outputs

OUTR

-- -

SENS

Sn-d

SENS

HI-2

SENS

After you build and connect power to your control system module assembly, the output numbers and output types for your control system are auto m at ica lly assigned in the UI.

Note: You must set up the input sensors for your control system before you can set up the outputs. See

Setting Up System 450 Sensors

information. To set up System 450 outputs in the UI:

1. Apply power to your module assembly. After the Startup screen appears briefly (displaying the control module firmware version), the Main screen appears on the LCD.

2. In the Main screen, press and hold simultaneously for 5 seconds to access the setup screens and to go to the Sensor Setup Start screen.

3. At the Sensor Setup Start screen, press repeatedly to scroll through and select the desired Output Setup Start screen. The Output Setup Start screen indicates the output number and the output type for the selected output.

on page 7 for more

and

4. To set up standard Relay Outputs and Relay Outputs with High Input-Signal Selection, see

Setting High Input-Signal Selection Control and T able6 for

setup information and procedures.

5. For standard Analog Outputs and Analog Outputs with High Input-Signal Selection, see S

Analog Output for Standard Control or High InputSignal Selection Control and Table 8 for setup

information and procedures.

6. For Relay Outputs with Differential Control, see

Setting

page 16 and Table 10.

7. For Analog Outputs with Differential Control, see

Setting

page 16 and Table 11.

Setting Up a Relay Output for Standard Control or High Input-Signal Selection Control

Table 6 provides information, procedures, guidelines, and screen examples for setting up relay output s for standard or High Input-Signal Selection control. Se e Figure 7 on page 21 for example menu flow of the Relay Output 1 set up in Table 6.

Up a Relay Output for Standard Control or

etting Up an

Up an Output for Differential Control on

Table 6: System 450 Setup Screen Information and Procedures for Relay Outputs with Standard Control

and High Input-Signal Selection Control (Part 1 of 3)

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

Relay Output Setup Star t Scr e en: The output numbers and the output type (relay or analog ) are

determined by the module types and configuration of your control system’s module assembly and are automatically assigned when you connect power to the module assembly. (See Setting Up a Control System in the User Interface on page 5.)

Note: You must set up the control system input sensors before you can set up the outputs.

Sn-2

1. In the Relay Output Setup Start screen, press The screen example shows a Relay Output Setup Start screen for Output 1.

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. If a sensor is not selected, the remaining output setup screens do not appear. If a sensor is already selected for this output, the Sensor Selection screen does not appear here and the Relay ON Selection (ON or dON) screen appears instead.

Note: Y ou must select a sensor in this Sensor Selection screen and the selected sensor must be already set up in the System 450 UI. (See Setting Up System 450 Sensors

Note: Beginning with firmware Version 2.00, the functional sensors Sn-d and HI-2 are available, if Sn-1 and Sn-2 are the same Sensor Type. If Sn-1, Sn-2, and Sn-3 are the same Sensor Type, the functional sensor HI-3 is also available.

2. Press or to select the sensor that this output references:

• For standard control action, select Sn-1, Sn-2, or Sn-3.

• For standard control action with High Input-Signal Selection, select HI-2 or HI-3. Then press

Note: For Differential Control, select Sn-d and go to Table 10 on page 17 for information, procedures,

guidelines, and screen examples for setting up outputs for Differential Control. The top screen example shows the initial Sensor Selection screen for Relay Output 1 before a sensor is

selected. The remaining screen examples show some of the sensors that may be available for selection. For the Output Relay example, Sn-2 is selected as the Sensor for Output 1 as shown in the second screen.

to save your sensor selection and go to the Relay ON Selection screen.

to go to the output’ s Sensor Se lection scre en.

System 450™ Series Control Modules with Relay Outputs Installation Instructions10

Table 6: System 450 Setup Screen Information and Procedures for Relay Outputs with Standard Control

OFF

ONT

OFFT

120

SNF

OFF

SENS

and High Input-Signal Selection Control (Part 2 of 3)

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

Relay ON Selection Screen: Select the value at which the relay turns On. Relay ON is defined as relay

LED On/Lit, relay contacts N.O. to C are closed, and N.C. to C contacts are open. Note: The value ranges and minimum control band are determined by the Sensor Type selected for the

sensor that the output references and are enforced in the Relay ON and Relay OFF Selection screens.

Sn-2

3. Press or to select the value at which the output relay turns On, then press selection and go to Relay OFF Selection screen.

The screen example shows an ON value of 78 (°F) selected for Relay Output 1. Relay OFF Selection Screen: Select the value at which the relay turns Off. Relay OFF is defined as

relay LED Off, relay contacts N.C. to C are closed, and N.O. to C contacts are open. Note: The value ranges and minimum control band are determined by the Sensor Type selected for the

sensor that the output references and are enforced in the Relay ON and Relay OFF Selection screens.

4. Press or to select the value at which output relay turns Off, then press selection and go to Minimum Relay ON TIme Selection scree n.

The screen example shows an OFF value of 75 (°F) selected for Relay Output 1. Minimum Relay ON Time Selection Screen: Minimum ON T ime range is 0 to 300 seconds.

5. Press or to select the minimum time that the output relay remains On after reaching the Relay ON value, then press Selection screen.

Screen example shows an ONT value of 0 (seconds) selected for Output 1. Minimum Relay OFF Time Selection Screen: Minimum OFF Time range is 0 to 300 seconds.

6. Press or to select the minimum time that this output relay remains Off after reaching the Relay OFF value. Press screen.

The screen example shows an OFFT value of 120 (seconds) selected for Output 1. Sensor Failure Mode Selection Screen: Select the output’s mode of operation if a referenced sensor or

sensor wiring fails. If the output references functional sensors HI-2 or HI-3, the output enters the Sensor Failure mode whenever a referenced sensor or sensor wiring fails. The output operates in the selected Sensor Failure mode until the failure is remedied. Sensor Failure mode selections for Relay Outputs include:

• ON = Output relay remains On during sensor failure.

• OFF = Output relay remains Off during sensor failure.

7. Press or to select this output’s mode of operation if the sensor or sensor wiring fails. Press

The screen example shows OFF selected as the Sensor Failure mode for Output 1. Edit Sensor Screen: This screen displays the sensor that this output currently references. Typically, no

action is taken in this screen. But if you need to change the sensor that this output references, you can select a different sensor for this output in this screen.

Note: If you change the sensor that an output references to a sensor with a different Sensor Type, the default setup values for the output change, and you must set the output up again.

8. If you do not need to change this output’s sensor, simply press to save the current sensor selection and return to the Relay Output Setup Start screen.

To change the sensor this output references, press or to select the new sensor that this output references. Then press to save the new sensor selection and return to the Relay ON Selection screen (ON or dON). If the new sensor has a different Sensor Type from the previously referenced sensor, repeat the output setup procedure for this output.

This Relay Output is now set up in the System 450 UI. The screen example shows Sn-2 is selected Sensor for Output 1.

to save your sensor failure mode selection and go to the Edit Sensor screen.

to save your selection and go to the Minimum Relay OFF Time

to save your selection and go to the Sensor Failure Mode Selection

to save your

System 450™ Series Control Modules with Relay Outputs Installation Instructions 11

Table 6: System 450 Setup Screen Information and Procedures for Relay Outputs with Standard Control

OUTR

-- -

100%

Less Greater

65°F

10%

70°F

SP > EP

SP = 70 ( ) EP = 65 ( )

OSP = 10 (%)

°F

OSP < OEP

OEP

Band

Fig:sys450_c ntrl_rmp_exmpl

Figure 6: Control Ramp Example for a Typical

Heating Application (SP > EP and OSP < OEP)

and High Input-Signal Selection Control (Part 3 of 3)

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

Relay Output Setup Start Screen

After you have set up this Relay Output, you can go to another Output Setup Start screen, the Sensor Setup Start screen, or return to the Main screens.

9. Press to scroll through the remaining Output Setup Start screens and return to the Sensor

The screen example shows a Relay Output Setup Start screen for Output 1.

Setup Start screen, or press and simultaneously to return to the System 450 Main screens.

Setting Up an Analog Output for Standard Control or High Input-Signal Selection Control

Analog outputs provide an analog signal to control equipment in you application based on the input from a standard fixed setpoint sensor (Sn-1, Sn-2, or Sn-3) or a High Input Signal Selection sensor (HI-2 or HI-3).

Note: The differential sensor, Sn-d, is used to set up analog and relay outputs for Differential Control. See

Setting

Up an Output for Differential Control on page

16 for more information. Analog outputs provide an auto-selecting analog sign al

that is proportional to the sensed input condition. The System 450 analog output senses the impedance of the controlled equipment’s analog input circuit and automatically delivers either a 0–10 VDC or 4–20 mA signal to the controlled equipment.

Figure 6 shows an example of the analog output setup values and the resulting output signal in a typical spac e heating application (SP > EP and OSP < OEP).

Proportional

System Output

OSP

Condition Value

OEP = 10 0 ( % )

The control action between the input signal and the output signal can be set up four ways, depending on the values selected for the Setpoint (SP), End Point (EP), Percent Output Signal Strength at Setpoint (OSP), and Percent Output Signal Strength at End Point (OEP). The LCD displays different Control Ramp icons for the four control actions.

System 450™ Series Control Modules with Relay Outputs Installation Instructions12

Ta ble 7 shows the four Control Ramp icons and the

OEP=100%

OSP=0%

OEP=100%

OSP=0%

OSP=100%

OEP=0%

OSP=100%

OEP=0%

associated analog output setup value relationships.

Table 7: Analog Output Control Ramp Icons

Control Ramp Displayed on LCD

Control Action Set the Analog Output Value

Relationships for the Desired Control Action and Corresponding Control Ramp

SP < EP

OSP < OEP

Output Minimum at SP

SP=50°F EP=60°

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

OSP > OEP

Output Maximum at SP

SP=50°F EP=60°F

Table 8 provides information, procedures, guidelines, and screen examples for setting up analog outputs that reference standard or High Input-Signal Selection sensors. See Figure 7 on page 21 for example menu flow of the Analog Output 3 set up in Table 8.

System 450™ Series Control Modules with Relay Outputs Installation Instructions 13

T able 8: System 450 Setup Screen Information and Procedures for Analog Output with St andard and High

OUTA

-- -

SENS

Sn-d

SENS

HI-2

SENS

200

250

OSP

OEP

Input-Signal Selection Control (Part 1 of 2)

LCD Screen Name, Description/Function, User Action, Example

Analog Output Setup Start Screen: The output numbers and the output type (relay or analog) are

Note: You must set up the system’s sensors before you can set up the outputs.

Sn-1

1. Press The screen example shows the Analog Output Setup Start screen for Output 3.

Sensor Selection Screen: The sensor you select here determines this output’s setup parameters and

values, including condition type, unit of measurement, minimum proportional band, default setup values, and setup value ranges for several of the remaining output setup screens. If a sensor is not selected here, this output’s remaining setup screens do not appear. If a sensor is already selected for this output, the Sensor Selection screen does not appear here, and the Setpoint Selection (SP or dSP) screen appears instead.

Note: You must select a sensor in this Sensor Selection screen and the selected sensor must be already set up in the System 450 UI. (See Setting Up System 450 Sensors

Note: Beginning with firmware Version 2.00, the functional sensors Sn-d and HI-2 are available if Sn-1 and Sn-2 are the same Sensor Type. If Sn-1, Sn-2, and Sn-3 are the same Sensor Type, the functional sensor HI-3 is also available.

2. Press or to select the sensor that this output references:

• For standard control ac t io n, select Sn-1, Sn-2, or Sn-3.

• For standard control action with High Input-Signal Selection, select HI-2 or HI-3. Then press

Note: For Differential Control, select Sn-d and go to Table 11 on page 18 for information, procedures,

guidelines, and screen examples for setting up an Analog Output for Differential Control. The top screen example shows the initial Sensor Selection screen for Analog Output 3 before a sensor is

selected. The remaining screen examples show some of the sensors that may be available for selection. For the Analog Output example, Sn-1 is the selected Sensor for Output 3 as shown in the second screen.

Setpoint Selection Screen: Setpoint is the target value that the controlled system drives towards and along with End Point, defines this output’s proportional band.

Note: An output’s minimum proportional band (between Setpoint and End Point) is automatically enforced in the output’s Setpoint and End Point Selection screens.

3. Press or to select this output’s Setpoint value. Press selection and go to the End Point Selection screen.

The screen example shows a SP value of 200 (psi) selected for Output 3. End Point Selection Screen: End Point is the (condition) value that the controlled system drives away

from (towards Setpoint) and, along with Setpoint, defines this output’s proportional band. Note: An output’s proportional band (between Setpoint and End Point) is automatically enforced in the

output’s Setpoint and End Point Selection screens.

4. Press or to select this output’s End Point value. Press selection and go to the %Output Signal Strength at Setpoint Selection screen.

The screen example shows an EP value of 250 (psi) selected for Output 3. Output Signal Strength at Setpoint Selection Screen: Select the strength of the signal that this output

generates when the sensed condition is at the Setpoint value. The signal strength range is 0 to 100 (%).

5. Press or to select this output’ s %Output Signal Strength at Setpoint (OSP) value. Press to save your selection and go to the %Output Signal Strength at End Point Selection screen.

The screen example shows an OSP value of 10 (%) selected for Output 3. Therefore Output 3 generates 10% of the total signal strength (1 V or 5.6 mA) when the input is at the Setpoint value of 200 (psi).

Output Signal Strength at End Point Selection Screen: Select the strength of the signal that this output generates when the sensed condition is at the End Point value. The signal strength range is 0 to 100 (%).

6. Press or to select this output’s %Output Signal Strength at End Point value. Press save your selection and go to the Integration Constant Selection screen.

The screen example shows an OEP value of 90 (%) selected for Output 3. Therefore Output 3 generates 90% of the total signal strength (9 V or 18.4 mA) when the input is at the End Point value of 250 (psi).

to go to this output’s Sensor Selection screen.

to save your sensor selection and go to the Setpoint Selection screen.

to save your Setpoint value

to save your End Point value

System 450™ Series Control Modules with Relay Outputs Installation Instructions14

T able 8: System 450 Setup Screen Information and Procedures for Analog Output with St andard and High

I-C

SNF

OFF

SENS

Sn-2

OUTA

-- -

Input-Signal Selection Control (Part 2 of 2)

LCD Screen Name, Description/Function, User Action, Example

Integration Constant Selection Screen: An integration constant allows you to set up proportional plus

integral control for this analog output. proportional plus integral control can drive the load cl oser to Setpoint than proportional only control.

Note: Initially, you should select the I-C value of 0 (zero) for no integration constant. Refer to the System 450 Series Technical Bulletin (LIT-12011459) for more information on proportional plus integral control

and setting an integration constant in the System 450 UI.

7. Press or to select this output’s Integration Constant for proportional plus integral control. Press

The screen example shows an I-C value of 0 (zero) selected for Output 3. Sensor Failure Mode Selection Screen: Select the output’s mode of operation if a referenced sensor or

sensor wiring fails. If the output references functional sensors HI-2 or HI-3, the output enters the Sensor Failure mode whenever one of the referenced sensors or sensor wiring fails. The output operates in the selected Sensor Failure mode until the failure is remedied. Sensor Failure mode selectio ns for Analog Outputs include:

• ON = Output generates the selected OEP signal strength during sensor failure.

• OFF = Output generates the selected OSP signal strength during sensor failure.

8. Press or to select this output’s mode of operation if the sensor or sensor wiring fails. Press to save your selection and go to the Edit Sensor Selection screen.

The screen example shows OFF selected as the Sensor Failure mode for Output 3. Edit Sensor Selection Screen: This screen displays the sensor that this output currently references.

Typically, no action is taken in this screen. But if you need to change the sensor that this output references, you can select a different sensor for this output in this screen.

Note: If you change the sensor that an output references to a sensor with a different Sensor Type, the default setup values for the output change, and you must set the output up again.

9. If you are not changing this output’s sensor, simply press to save the current sensor selection and return to the Analog Output Setup Start screen.

To change the sensor this output references, press or to select the new sensor that this output references. Then press to save the new sensor selection and return to the Setpoint Selection screen (SP or dSP). If the new sensor has a different Sensor Type from the previously referenced sensor, repeat the output setup procedure for this output.

The screen example shows Sn-2 as the selected Sensor for Output 3. Analog Output Setup Start Screen

After you have set up this Analog Output, you can go to another Output Setup Start screen, the Sensor Setup Start screen, or return to the Main screens.

10. Press to scroll through the remaining Output Setup Start screens and return to the Sensor Setup Start screen, or press and simultaneously to return to the System 450 Ma in

screens.

The screen example shows the Analog Output Setup Start screen for Output 3.

to save your selection and go to the Sensor Failure Mode Selection screen.

System 450™ Series Control Modules with Relay Outputs Installation Instructions 15

Differential Control

Beginning with V ersion 2.00 firmware, standard System 450 control modules include Differential Control capability. Differential control is used to monitor and/or maintain a given difference in a condition (temperature, pressure, or humidity) between two sen so r po ints within a system, process, or space.

The Differential Control feature enables a System 450 control system to monitor the temperature, pressure, or humidity differential between two sensors of the same type (Sn-1 and Sn-2) and control relay and/or analog outputs based on the sensed differential value relative to user-selected differential values (dON, dOFF, dSP, and dEP).

When a Differential Control sensor (Sn-d) is set up, the displayed differential sensor value is a calculated variable value; (Sn-d) = (Sn-1) – (Sn-2).

Note: The System 450 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 Sn-d value is displayed in the System S tatus screens as either a temperature differentia l 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 3 on page 7 for Sensor Types and their units of measurement.

The relay output setup values dON and dOFF are also condition differential values.

• When a relay output is set up for differential control, System 450 controls the relay state (On or Off) based on the difference between Sn-1 and Sn-2 (Sn-d) relative to the user-selected dif ferential On (dON) and differential Off (dOFF) values.

• When an analog output is set up for differential control, System 450 controls the analog signal strength (0 to 100%) based on the difference between Sn-1 and Sn-2 (Sn-d) relative to the userselected differential setpoint (dSP) and differential endpoint (dEP) values.

Differential Sensor Failure Mode

Any output set up to reference the Differential Sensor (Sn-d) enters the selected Sensor Failure mode when either Sn-1 sensor, Sn-2 sensor, or the sensor wiring fails.

Differential Sensor Range of Usable Values

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. Each Sensor Type has an equal number of positive and negative values. See Table 9 for the Range of Usable Values when an output references Sn-d.

Table 9: Ranges of Usable Values for Sensor

Types in Differential Control Applications

Sensor Type

°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 P100 -100.0 to 100.0 P 0.5 -0.500 to 0.500 P110 -110.0 to 110.0 P 2.5 -2.50 to 2.50 P200 -200 to 200 P 5 -5.00 to 5.00 P500 -500 to 500 P 8 -9.00 to 9.00 P750 -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

Sn-d Range of Usable Values

Sensor Type

Sn-d Range of Usable Values

Setting Up an Output for Differential Control

Table 10 provides information, procedures, guidelines, and screen examples for setting up relay outputs that reference the Differential Control sensor.

Table 11 provides information, procedures, guidelines, and screen examples for setting up analog output s that reference the Differential Control sensor.

Figure 8 on page 22 shows the menu flow used to set up the output examples in Table 10 and Table 11.

System 450™ Series Control Modules with Relay Outputs Installation Instructions16

T able 10: System 450 Setup Screen Information and Procedures for Relay Outputs with Differential Control

OUTR

-- -

SENS

ONT

OFFT

(Part 1 of 2)

LCD Screen Name, Description/Function, Procedures, and Example

Relay Output Setup Start Screen: The output numbers and the output type (relay or analog) are

Note: Y ou must set up the sy stem’s sensors before you can set up the system outputs, and you must set up the Differential Control sensor (Sn-d) before you can set up an output with Differential Control. (See

Sn-d

dON

dOFF

Setting Up System 450 Sensors

1. Press to go to this output’s Sensor Selection screen. The screen example shows the Relay Output Setup Start screen for Output 1.

Sensor Selection Screen: Selecting th e Differential Control sensor (Sn-d) here establishes this output as a Differential Control output. Differential Control outputs have several different setup parameters and value ranges from standard and High Input-Signal Selection outputs.

Note: To set up an output for Differential Control, the Differential Control sensor (Sn-d) must be already set up in the System 450 UI (See Setting Up System 450 Sensors select Sn-d in the Sensor Selection screen. If Sn-d is not selected here, the Differential Control setup screens do not appear. If a sensor is already selected for this output, the Sensor Selection screen does not appear here, instead the Relay ON Selection screen (ON or dON) appears.

2. Press or to select the Differential Control sensor (Sn-d) as the sensor this output references. Press to save your sensor selection and go to the Relay dON Selection Screen.

The screen example shows Sn-d is the selected Sensor for Output 1. Relay dON Selection Screen: Select the dON value at which the relay turns on. The dON value is a

differential value that represents the intended difference in the condition (temperature, pressure, or humidity) between Sn-1 and Sn-2 (Sn-1 minus Sn-2) at which the relay is turned on. Depending on the intended control action and the physical location of Sn-1 and Sn-2 sensors in the condition process, dON may be a positive or negative value. Relay dON is defined as relay LED On/Lit, relay contacts N.O. to C are closed, and N.C. to C contacts are open.

Note: The unit of measurement, resolution increment, minimum control band, and range of usable values for dON and dOFF are determined by the Sensor Type selected for Sn-1 and Sn-2. (See Table 3 and Table 9 for more information.)

3. Press or to select the differential value at which the output relay turns On. Press to save your selection and go to Relay dOFF Selection Screen.

The screen example shows a dON value of 28 (psi) selected for Relay Output 1. Relay dOFF Selection Screen: Select the dOFF value at which the relay turns off. The dOFF value is a

differential value that represents the intended difference in the condition (temperature, pressure, or humidity) between Sn-1 and Sn-2 (Sn-1 minus Sn-2) at which the relay is turned off. Depending on the intended control action and the physical location of Sn-1 and Sn-2 sensors in the condition process, dOFF may be a positive or negative value. dOFF is defined as relay LED Off, relay contacts N.C. to C are closed, and N.O. to C contacts are open.

4. Press or to select the differential value at which output relay turns Off. Press to save your selection and go to Minimum Relay ON TIme Selection Screen.

The screen example shows a dOFF value of 30 (psi) selected for Relay Output 1. Minimum Relay ON Time Selection Screen: Minimum ON T ime range is 0 to 300 seconds.

5. Press or to select the minimum time that the output relay remains On after reaching the Relay dON value. Press to save your selection and go to the Minimum Relay OFF Time Selection Screen.

The screen example shows an ONT value of 0 (seconds) selected for Output 1. Minimum Relay OFF Time Selection Screen: Minimum OFF Time range is 0 to 300 seconds.

6. Press or to select the minimum time that this output relay remains Off after reaching the Relay dOFF value. Press to save your selection and go to the Sensor Failure Mode Selection screen.

The screen example shows an OFFT value of 30 (seconds) selected for Output 1.

for information on setting up the Differential Control sensor.)

for more information.), and you must

System 450™ Series Control Modules with Relay Outputs Installation Instructions 17

T able 10: System 450 Setup Screen Information and Procedures for Relay Outputs with Differential Control

SNF

OFF

SENS

OUTR

-- -

OUTA

-- -

SENS

Sn-d

(Part 2 of 2)

LCD Screen Name, Description/Function, Procedures, and Example

Sensor Failure Mode Selection Screen: Select the differential output’s mode of operation if either of the

referenced sensors (Sn-1 or Sn-2) or the sensor wiring fails. The ou tput operates in the selected mode until the failure is remedied. Sensor Failure mode selections for Relay Outputs include:

• ON = Output relay remains On during sensor failure.

• OFF = Output relay remains Off during sensor failure.

7. Press or to select this output’s mode of operation if a referenced sensor or sensor wiring

fail. Press to save your sensor failure mode selection and go to the Edit Sensor Screen.

The screen example shows OFF selected as the Sensor Failure mode for Output 1. Edit Sensor Screen: This screen displays the Differentia l Sens or (Sn - d) tha t th is ou tput currently

Sn-d

references. Typically, no action is taken in this screen. But if you need to change the sensor th at this output references, you can select a different sensor for this output in this screen.

Note: If you change the Sn-d sensor to a different sensor, the output is no longer a Differential Control output and you must set the output up again for the new sensor selection.

8. If you do not need to change this output’s sensor, simply press to save the current sensor selection and return to the Relay Output Setup Start screen.

This Relay Output is now set up in the System 450 UI. The screen example shows Sn-d as the selected Sensor for Output 1.

Relay Output Setup Star t Scr e en: After you have set up this Relay Output, you can go to another Output Setup Start screen, the Sensor Setup Start screen, or return to the Main screens.

9. Press to scroll through the remaining Output Setup Start screens and return to the Sensor

The screen example shows the Relay Output Setup Start screen for Output 1.

Setup Start screen, or press and simultaneously to return to the System 450 Main screens.

Table 11: System 450 Setup Screen Information and Procedures for Analog Outputs with Differential

Control (Part 1 of 3)

LCD Screen Name, Description/Function, User Action, Example

Analog Output Setup Start Screen: The output numbers and the output type (relay or analog) are

Note: You must set up the system’s sensors before you can set up the system outputs, and you must set up the Differential Control sensor (Sn-d) before you can set up an output with Differential Control. (See

Setting Up System 450 Sensors

1. Press The screen example shows the Analog Output Setup Start screen for Output 2.

Sensor Selection Screen: Selecting the Differential Control sensor (Sn-d) here establishes this output as

a Differential Control output. Differential Control outputs have several different setup parameters and value ranges from standard and High Input-Signal Selection outputs.

2. Press or to select the Differential Control sensor (Sn-d) as the sensor this output

references. Press

The screen example shows Sn-d as the selected Sensor for Output 2.

to go to this output’s Sensor Selection screen.

for information on setting up the Differential Control sensor.)

for more information.), and you must

to save your sensor selection and go to the Setpoint Selection screen.

System 450™ Series Control Modules with Relay Outputs Installation Instructions18

Table 11: System 450 Setup Screen Information and Procedures for Analog Outputs with Differential

OSP

OEP

100

I-C

Control (Part 2 of 3)

LCD Screen Name, Description/Function, User Action, Example

Differential Setpoint Selection Screen: Differential Setpoint (dSP) is the target value that the controlled

30.0

dSP

25.0

dEP

system drives towards and along with Differential End Point (dEP), defines this output’s proportional band. The dSP value is a differential value that represents a (selected) difference in the condition (temperature, pressure, or humidity) between Sn-1 and Sn-2 (Sn-1 minus Sn-2). Depending on the intended proportional control action and the physical location of Sn-1 and Sn-2 sensors in the condition process, dSP may be a positive or negative value.

Note: The unit of measurement, resolution increment, minimum proportional band, and range of usable values for dSP and dEP are determined by the Sensor Type selected for Sn-1 and Sn-2. (See T able3 and Table 9 for more information.) The output’s minimum proportional band (between dSP and dEP) is automatically enforced in the output’s Setpoint and End Point Selection screens.

3. Press or to select this output’s Differential Setpoint value. Press Differential Setpoint value selection and go to the End Point Selection screen.

The screen example shows a dSP value of 25 (psi) selected for Output 2. Differential End Point Selection Screen: Differential End Point (dEP) is the target value that the

controlled system drives towards and along with Differential Setpoint (dSP), defines this output’s proportional band. The dEP value is a differential value that represents a (selected) difference in the condition (temperature, pressure, or humidity) between Sn-1 and Sn-2 (Sn-1 minus Sn-2). Depending on the intended proportional control action and the physical location of Sn-1 and Sn-2 sensors in the condition process, dEP may be a positive or negative value.

4. Press or to select this output’s Differential End Point value. Press Differential End Point value selection and go to the %Output Signal Strength at Setpoint Selection screen.

The screen example shows a dEP value of 30 (psi) selected for Output 2. Output Signal Strength at Setpoint Selection Screen: Select the strength of the signal that this output

generates when the sensed condition is at the Differential Setpoint (dSP) value. The signal strength range is 0 to 100 (%).

5. Press or to select this output’s %Output Signal Strength at Setpoint value. Press save your selection and go to the %Output Signal Strength at End Point Selection screen.

The screen example shows an OSP value of 10 (%) selected for Output 2. Therefore Output 3 generates 10% of the total signal strength (1 V or 5.6 mA) when the input is at the Setpoint value of 200 (psi).

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 Differential End Point (dEP) value. The signal strength range is 0 to 100 (%).

6. Press or to select this output’s %Output Signal Strength at End Point value. Press save your selection and go to the Integration Con stant Selection screen.

The screen example shows an OEP value of 90 (%) selected for Output 2. Therefore Output 3 generates 90% of the total signal strength (9 V or 18.4 mA) when the input is at the End Point value of 250 (psi).

Integration Constant Selection Screen: An integration constant allows you to set up proportional plus integral control for this analog output. proportional plus integral control can drive the load cl oser to Setpoint than proportional only control.

and setting an integration constant in the System 450 UI.

7. Press or to select this output’s Integration Constant for proportional plus integral control. Press

The screen example shows an I-C value of 0 (zero) selected for Output 2.

to save your selection and go to the Sensor Failure Mode Selection screen.

to save your

System 450™ Series Control Modules with Relay Outputs Installation Instructions 19

Table 11: System 450 Setup Screen Information and Procedures for Analog Outputs with Differential

SNF

OFF

SENS

Sn-d

OUTA

-- -

Control (Part 3 of 3)

LCD Screen Name, Description/Function, User Action, Example

Sensor Failure Mode Selection Screen: Select the differential output’s mode of operation if either of the

referenced sensors (Sn-1 or Sn-2) or the sensor wiring fails. The output operates in the selected mode until the failure is fixed. Sensor Failure Mode selections for Analog Outputs include:

• ON = Output generates the selected OEP signal strength during sensor failure.

• OFF = Output generates the selected OSP signal strength during sensor failure.

8. Press or to select this output’s mode of operation if a referenced sensor or sensor wiring fail. Press

The screen example shows OFF selected as the Sensor Failure mode for Output 2. Edit Sensor Screen: This screen displays the Differential Sensor (Sn-d) that this output currently

references. Typically, no action is taken in this screen. But if you need to change the sensor that this output references, you can select a different sensor for this output in this screen.

Note: If you change the Sn-d sensor to a different sensor, the output is no longer a Differential Control output and you must set the output up again for the new sensor selection.

9. If you are not changing this output’s sensor, simply press to save the current sensor selection and return to the Analog Output Setup Start screen.

To change the sensor this output references, press or to select the new sensor that this output references. Then press to save the new sensor selection an d return to the Setpoint Selection screen (SP or dSP). If the new sensor has a different Sensor Type from the previously referenced sensor, repeat the output setup procedure for this output.

The screen example shows Sn-d as the selected Sensor for Output 2. Analog Output Setup Start Screen

After you have set up this Analog Output, you can go to another Output Setup Start screen, the Sensor Setup Start screen, or return to the Main screens.

10. Press to scroll through the remaining Output Setup Start screens and return to the Sensor Setup Start screen, or press and simultaneously to return to the System 450 Main

screens.

The screen example shows the Analog Output Setup Start screen for Output 2.

to save your selection and go to the Edit Sensor Selection screen.

System 450™ Series Control Modules with Relay Outputs Installation Instructions20

Figure 7: System 450 Status Screens, Setup Screens, and Menu Flow Example

Relay Output

Setup Start

OUTR

-- -

Sensor 2 Sel ected.

(Displayed only when a

Sensor is selected.)

not

Up to

ten

Outputs

can be

connected

and

set up.

Relay

Output

OUTA

OutputAnalog

Setup Start

Analog

Output

Select Relay ON

Value

Relay

at ºF

1ON

OFF

Select Relay OFF

Value

Relay

at ºF

1OFF

Select Min

Relay ON

ONT

Relay

Seconds

(Minimum)

1ON

Select

Setpoint Value

Prop. Band

200

Analog Output

Prop. Band

Setpoint psi

200

Sele

End

Ana

End

FIG:menu_flw_chrt

232

PSI

Main Screen

Sensor 2 Status

Sensor 1 Status

Up to ten Outp

can be set up

displayed.

Relay Output 2

Status

OFF

OUT

Output 2 Relay

OFF

Relay Output 1

Status

OUT

Output 1 Relay

Analog Output 3

Status

OUT

Output 3 Signal

at % of Range

Control Sensor 3

Status

----

Control Sensor 3

Not Set Up

Control Sen s or 2

Status

74ºF

232

PSI

Control Sensor 1

Status

232 psi

Sensor Set up

Screens

System Status

Screens

Main Screens

(Sensor Status)

Relay Output

Setup Screens

Analog Output

Setup Screens

Press and hold +

for 5 seconds to go to

the Setup Start screens.

Press to scroll through

Sensor Status screens and

Output Status screens.

Select

Control Sensor

Sn-2

SENS

Sensor Type

Setup Start

-- -

Select Sensor 2

Type

°F

Sensor Type

(-40 to 25 0ºF)

ºF

Select S ensor 3

Type

Sensor Type

Selected

Select Sensor 1

Type

P500

Sn-1

Sn-2 Sn-3

Select

Control Sensor

SENS

Sensor 1 Selected

(Displayed only

when a Sensor

is selected.)

not

Sn-1

Select

Temperature (on

Offset De gree

-3

OFFS

During normal op eration, the display au to m ati c

for all sensors set up in the UI .

After a 2 m inute pause in any set up or statu s s

Main (Sensor St at us ) scr ee ns.

Press in any Setup scree n t o go to the asso

Press + simultaneously in any Setup Star

-- -

Output 2

Setup Start

Screen

Edit

Control Sensor

Sn-2

SENS

Failure Mode

Sensor (Sn-2)

Controls Relay

1OFF

Select Se nsor

Edit

uts

and

Control S en sor

OFF

Relay

Failure Mode

ally scrolls through the Sensor Status screens

Main Screen

ciated Setup Start screen.

creen (below), the display returns to the

t screen to return to the Main screen.

ly)

Select S ensor

Select Minimum

Relay OFF T ime

Time

imum

SNF

120

if Sensor 2 Fails

1OFF

Seconds

(Minimum)

120

OFFT

Relay

Constant Value

Select Integration

at End Point

Signal Value

Select % Output

at Setpoint

Signal Value

Select % Output

Point Value

ct Prop. Band

Sn-1

SENS

Sensor (Sn-1)

OFF

SNF

Analog Output

I-C

Analog Output

OEP

Output Signal %

OSP

Output Signal %

250

log Output Prop. Band

Controls

OFF

Integration

of Range at

Analog Output

Sensor 1 Fails

Constant

Value

End Point

Value

Setpoint

250

Point psi

System 450™ Series Control Modules with Relay Outputs Installation Instructions 21

Figure 8: System 450 Status Screens, Setup Screens, and Menu Flow Example for Differential Control

Relay Output

Setup Start

OUTR

-- -

Up to

ten

Outputs

can be

connected

and

set up.

Relay

Output

OUTA

OutputAnalog

Setup Start

Analog

Output

Select Relay ON

Diffe r en ti al Value

dON

dOFF

Select Relay OFF

Diff er ential Value

Select Minim

Relay ON T

ONT

Select

Setpoint Value

Differential

dSP

30.0

Sele

End

FIG:Sys450_diffcontrol_menu_flow_chart

Main Screen

Sensor 2 Status

Sensor 1 Status

Relay Output 1

Status

OUT

Analog Output 3

Status

OUT

Sensor 3 St at us

----

Sensor 2 Status Sensor 1 Status

Sensor Setup

Screens

System Status

Screens

Main Screens

(Sensor Status)

Relay Output

Setup Screens

for Differential

Control

Analog Output

Setup Screens

for Differential

Control

Press and hold +

for 5 seconds to go to

the Setu p St ar t screens.

Press to scroll throug h

Sensor Status screens and

Output St atus screens.

Select

Control Sensor

Sn-d

SENS

Sensor Type

Setup Start

-- -

Selec t Sensor 2

Type

P100

Select Sensor 3

Type

Select Sensor 1

Type

Sn-1

Sn-2 Sn-3

Select

Control Sensor

SENS

Sn-d

-- -

P100

62.5

PSI

35.0

PSI

62.5

PSI

35.0

PSI

Selections for Setting Up Relay Output 1 to Enable/Disable Variable Speed Drive for Booster Pump by Pressure Differen

(Drive On when Sn-d repor ts a 28 psi or less di f ferential and dri ve Off when Sn-d repo r ts a 30 psi or grea t e r di ff erentia l .)

(No Sensor)

Selections for Setting Up Analog Output 2 to Control Variable Speed Drive for Booster Pump by Pressure Dif

(Drive delivers 5% output at 25 psi or greater differential and ramps up 100% outp

as pressure d ifferential decreases, deliveri ng

Because the sam e Sesnor T ype (P100) is selected for Sn-1 and

the Differential Contro l sensor (Sn-d) is ava ilable fo r s election wh

outputs for this con trol system are set up.

The High Input-Signal Selection sensor for two sensor app

(HI-2) is also available for selection when Sn-1 and Sn-2 are the

Sensor Type.

Note:

DIfP

Differential Control

Sensor Status

DIfP

Differential Control

Sensor Stat us

Main Screens show status of Sn-1, Sn-2, and Sn-d.

(Sn-d is Status screen is labeled DIfP (Di ff erential

Pressure) beca use Sn-1 and Sn-2 are th e same

pressure Sens or Type (P100).

Up to ten Ou

can be set up

displayed

27.5

Note:

For mor e i nformat ion on setting up Rel ay O utput 1 an d Anal og Output 2 see Table 10 and Table

Edit

Sn-d

Control Sensor

en the

Sn-2,

and

tputs

lications

same

Edit

Control Sensor

Sn-d

SENS

tial

Failure Mode

Select Sensor

SENS

OFF

SNF

ferential

ut at 20 ps i or less.)

11.

OFF

Failure Mode

Select Sensor

SNF

Consta nt Value

Select Integration

I-C

Select Minimum

Relay OFF Time

ime

OFFT

Signal Value

Select % Output

100

at End Point

OEP

at Setpoint

Signal Value

Select % Output

Point Value

ct Differential

Main Screen

OSP

5.0

dEP

System 450™ Series Control Modules with Relay Outputs Installation Instructions22

Technical Specifications

C450CxN-2

Product C450CxN-2: System 450 Control Modules are sensing controls and operating controls

with LCD, four-button touch pad, and On/Off relay output. C450CBN-2: Control Module with one SPDT output relay C450CCN-2: Control Module with two SPDT output relays

Supply Power C450YNN-1 Power Supply Module or 24 (20-30) VAC Safety Extra-Low Voltage (SELV)

(Europe) Class 2 (North America), 50/60 Hz, 10 VA minimum

Ambient Operating Conditions Temperature: -40 to 66°C (-40 to 150°F)

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

Ambient Shipping and Storage Conditions

Input Signal 0 to 5 VDC; 1,035 ohms at 25°C (77°F) for an A99 PTC Temperature Sensor;

Output Relay Contacts General: 1/2 HP at 120/240 VAC, SPDT

Analog Input Resolution: 14 bit Control Construction Independently mounted control, surface mounted with Lexan® 950 enclosure suitable

Dimensions (H x W x D) 127 x 61 x 61 mm (5 x 2-3/8 x 2-3/8 in.) Weight C450CBN-2: 209 gm (0.46 lb)

Compliance North America: cULus Listed; UL 60730, File E27734, Vol. 1; FCC Compliant to

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.

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

1,000 ohms at 21.1°C (70°F) for a Nickel Temperature Sensor

Specific: AC Motor Ratings 120 VAC 208/240 VAC AC Full-Load Amperes: 9.8 A 4.9 A AC Locked-Rotor Amperes: 58.8 A 29.4 A

_____________________________________ 10 Amperes AC Non-Inductive at 24/240 VAC Pilot Duty: 125 VA at 24/240 VAC

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

C450CCN-2: 222 gm (0.49 lb)

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

Europe: Mark: CE Compliant; Low Voltage Directive (2006/95/EC); EMC Directive (2004/108/EC); RoHS Directive (2002/95/EC); WEEE Directive (2002/9 6/EC)

Australia: Mark: C-T ick Compliant (N1813)

System 450™ Series Control Modules with Relay Outputs Installation Instructions 23

System 450™ Series Control Modules with Relay Outputs Installation Instructions24

Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.

Building Efficiency

507 E. Michigan Street, Milwaukee, WI 53202

Published in U.S.A. www.johnsoncontrols.com

Johnson Controls C450CCN-2, System 450 Series, C450CBN-2 Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Application

Installation

Location Considerations

Mounting

Wiring

Setup and Adjustments

System 450 Component Requirements

Setting Up a System 450 Module Assembly

Setting Active/Passive Sensor Jumpers

Setting Up a Control System in the User Interface

System 450 Firmware Versions

Accessing the System 450 Setup Start Screens

Setting Up System 450 Sensors

Setting Up Outputs That Reference a P110 Sensor

High Input-Signal Selection

Setting Up System 450 Outputs

Setting Up a Relay Output for Standard Control or High Input-Signal Selection Control

Setting Up an Analog Output for Standard Control or High Input-Signal Selection Control

Differential Control

Differential Sensor Failure Mode

Differential Sensor Range of Usable Values

Setting Up an Output for Differential Control

Technical Specifications

C450CxN-2