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Setting up System 450 Sensors

You must set up the sensors (inputs) for your control system before you can set up any of the outputs. See 

Accessing

the System 450 Setup screens

. The following table provides information about System 450 compatible sensors for Reset

Control Modules. 

System 450 menu flow example

 provides a System 450 UI screen flowchart example.

Table 3: System 450 Reset Control sensor types, setup values, and product codes

Sensor

type

Unit of

measuremen

t value

Range of

usable

values

Resolution

increment

s value

Minimum

differential

or

proportiona

l band

Effective

sensing

range

Range of

usable Pb/

dIFF and

SbK values

for RSP

Range of

usable

OSET

values for

RSP

Sensor

product

type

number

°F

°F

-40 to 250 1

1

-46 to 255

-30 to 30

-30 to 30

A99B-xxx

°C

°C

-40 to 121 0.5

0.5

-43 to 124

-17 to 17

-17 to 17

A99B-xxx

rH

% Humidity

10 to 95

1

2

1 to 100

-20 to 20

-30 to 30

HE-67Sx-x

1.

In the 

Sensor Setup Start

 screen, press 

Next

 to go

to the first Sensor Type Selection screen (Sn-1) and

begin setting up the sensors in your control system.

Press 

M

 (repeatedly) to scroll through the remaining

Setup Start screens.

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 all of the remaining

Setup Start screens in your control system. See

System 450 menu flow example

.

The following figure shows the 

Sensor Setup

Start

 screen with flashing dashes.

Figure 8: Sensor Setup Start screen

Note: 

You must set up the sensors for your

control system, including the reset setpoint

sensor (rES) (if required for your application)

before you can set up the control system

outputs. All Setup Start screens are view-

only; selections cannot be made in Setup Start

screens.

2.

In the 

Sn-1 Sensor Type Selection

 screen, press

Up

 or 

Down

 to select a Sensor Type (°F, °C, or --).

Press 

Next

 to save your selection and go to the Sn-2

Sensor Type Selection screen.

The following figure shows Sn-1 set to Sensor

Type °F.

Figure 9: Sn-1 Sensor Type Selection screen

The Sensor Type you select for an input sensor

automatically determines the setup parameters

and values for each output that is set up to ref-

erence that sensor. See Table 3 for information

about System 450 sensors/transducers, sensor

types, setup values, and product code numbers.

Note:

- System 450 Reset Control Modules are

designed for use with temperature (°C or

°F) and humidity (rH) Sensors Types only.

Pressure Sensor Types are not available

in the reset control module UI. You also

can select no Sensor Type (- -) when your

control systems uses less than three

sensors.

- In System 450 reset control systems,

Sensor 1 (Sn-1) is the Master sensor and

must always be a temperature sensor.

Sn-2 must be the control loop sensor.

The Sn-1 Master sensor is typically (but

not always) an outdoor air temperature

sensor. Sensor 2 (Sn-2) and Sensor 3

(Sn-3) can be temperature or humidity,

depending on your application. The

Reset Setpoint sensor (rES) cannot be set

up for your control system until both the

Sn-1 and Sn-2 are set up in the UI.

- For an output to operate properly,

the selected Sensor Type must match

the sensor model wired to the control

module, and the correct sensors must

be wired to the correct control module

input terminals.

3.

In the 

Sn-2 Sensor Type Selection

 screen, press 

Up

or 

Down

 to select the desired Sensor Type (°F, °C, rH,

or --). Press 

Next

 to save your selection and go to the

Sn-3 Sensor Type Selection screen.

The following figure shows Sn-2 set to °F.

System 450 Series Reset Control Modules with Real-Time Clock and Relay Output Installation Guide

8

Содержание System 450 C450RBN-1

Страница 1: ...ith reset control and or real time setback control for temperature and humidity only control applications System 450 expansion modules allow you to control up to 10 outputs which can be relay and anal...

Страница 2: ...lies before mak ing electrical connections More than one disconnec tion or isolation may be required to completely de en ergize equipment Contact with components carrying hazardous voltage can cause e...

Страница 3: ...and input sensor terminals low voltage less than 30V Labels 5V 24V Sn 1 Sn 2 Sn 3 Note Common terminals C are internally connected 2 6 pin module connector 3 Second output relay and terminal block La...

Страница 4: ...ion Module 16 Analog Output 4 Table 1 System 450 terminal wiring information Label Terminal function Wire sizes 24V Accepts 24 VAC supply power when a C450YNN power module is not connected and provide...

Страница 5: ...nd Down for 5 seconds to access the Setup Start screens 7 Menu button Press M to move through the sensor and output setup start screens When moving through the status or setup screens press M to retur...

Страница 6: ...s of the assembly outputs which requires setting up the outputs again See Figure 4 for an explanation of the System 450 display screen and the 4 button touch pad features and functions See Table 3 for...

Страница 7: ...s that the Analog Output is set up with SP EP and OSP OEP and Relay Output 2 has 17 hours of total runtime relay ON Figure 7 System Status screens Accessing the System 450 Setup screens 1 Apply power...

Страница 8: ...screens are view only selections cannot be made in Setup Start screens 2 In the Sn 1 Sensor Type Selection screen press Up or Down to select a Sensor Type F C or Press Next to save your selection and...

Страница 9: ...Setup Start screen Setting up the System 450 Reset Setpoint The System 450 Reset Control Modules feature temperature and humidity setpoint reset capability based on a Master temperature sensor Sn 1 an...

Страница 10: ...screen The remaining figures in this procedure show the setup parameter values selected for the RSP high and low temperature shutdown unoccupied setback and load balancing that are used by the output...

Страница 11: ...en The following figure shows an Shutdown High Temperature value of 65 F selected Figure 20 Shutdown High Temperature Selection screen 7 In the Shutdown Low Temperature Selection screen press Up or Do...

Страница 12: ...e the following sections Setting up a Relay Output with Reset Setpoint Setting up an Analog Output with Reset Setpoint Setting up a Standard Relay Output A standard relay output provides On Off contro...

Страница 13: ...mains off after reaching the OFFT value Minimum Relay OFF Time range is 0 to 300 seconds Press Next to save your selection and go to the next screen The following figure shows 10 seconds selected for...

Страница 14: ...et up in Setting up the System 450 Reset Setpoint Figure 35 Relay Output Setup Start screen 2 In the Sensor Selection screen press Up or Down to select the Reset Setpoint Sensor rES for the output to...

Страница 15: ...nge is 0 to 300 seconds Press Next to save your selection and go to the next screen The following figure shows 0 seconds selected for the minimum OFF Time for Output 2 Figure 40 Minimum Relay OFF Time...

Страница 16: ...gth at End Point OEP The LCD displays different Control Ramp icons for the four control actions The following figure shows an example of the analog output setup values and the resulting output signal...

Страница 17: ...e To set up a Standard Analog Output you must select Sn 1 Sn 2 or Sn 3 in this screen and the selected sensor must already be set up in the System 450 UI See Setting up System 450 Sensors for informat...

Страница 18: ...re limits to set point excursion The following figure shows 0 selected for the Unoccupied Setback value for Output 3 Figure 51 Unoccupied Setback Selection screen 8 In the Integration Constant Selecti...

Страница 19: ...sensor is not selected the remaining output setup screens do not appear If a sensor is already selected for the output the Sensor Selection screen does not appear here the next screen in the setup se...

Страница 20: ...tput When properly set up P I control can drive the load closer to Setpoint than proportional only control Press Next to save your selection and go to the next screen Initially you should select the I...

Страница 21: ...wing figure shows 12 hour clock format selected Figure 67 12 or 24 Hour Clock Selection screen 3 In the Time of Day Setup screen press Up or Down to set the current time Set the clock to real time Pre...

Страница 22: ...e unoccupied times The load balancing feature is not effected in its function as a result of Occupied Unoccupied modes See Figure 3 1 In the Occupied Unoccupied Schedule Setup Start screen press Next...

Страница 23: ...eriods for that day and the entire day is occupied and all outputs operate at their occupied setpoint value Occupied and Unoccupied time periods are available at 15 minute intervals only For example 1...

Страница 24: ...nd menu flow example System screens Description 1 Main screens Note The Main menu screens auto scroll during normal operation After two minutes of inactivity in any screen the display returns to the m...

Страница 25: ...eed 8 Standard analog output setup start screens Mixing valve output 9 Time and day clock setup start screens Note You can set Time and day and occupied or unoccupied schedule for any control system T...

Страница 26: ...VAC AC Full load Amperes 4 9 A AC Locked Rotor Amperes 29 4 A _____________________________________ 10 Amperes AC noninductive at 24 240 VAC Pilot Duty 125 VA at 24 240 VAC Clock accuracy 4 minutes pe...

Страница 27: ...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 fro...

Страница 28: ...2020 Johnson Controls All rights reserved All specifications and other information shown were current as of document revision and are subject to change without notice www penncontrols com...

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