Johnson Controls System 450 Series Installation Instructions Manual page 8

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.
To set up System 450 outputs in the UI:
1. Access the System 450 setup screens. (See
Accessing the System 450 Setup Screens.) The
Sensor Setup Start screen appears.
2. 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.
Table 5: System 450 Relay Output Setup Screen Information and Procedures
LCD Screen Name, Description/Function, User Action, and Example
Relay Output Setup Start Screen: The output number and the output type (relay or analog) are
-- -
automatically assigned when you connect power to the module assembly.
Note: You must set up the system's sensors before you can set up the outputs.
OUTR
1
1. Press
Screen example shows the Relay Output Setup-Start screen for Output 1.
Sensor Selection Screen: The sensor you select here determines this output's setup parameters and
--
values, including condition type, unit of measurement, minimum differential, default setup values, and
setup value ranges for several of the remaining output setup screens. If a sensor is not selected, the
SENS
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 screen appears instead.
Note: You must select a sensor in this Sensor Selection screen and the selected sensor must be
Sn-2
already set up in the System 450 UI. (See Setting up System 450 Sensors.)
2. Press
SENS
Screen examples show the intial Relay Output 1 Sensor Selection screen with no sensor selected,
followed by the same screen with the (Master) Sensor 1 selected for Relay Output 1.
Relay ON Selection Screen: Select the value at which the relay turns On. Relay ON is defined as relay
78
LED On/Lit, relay contacts NO to C are closed, and NC to C contacts are open.
Note: The value ranges and minimum differential are determined by the Sensor Type selected for the
ON
1
sensor that this output references and are enforced in the Relay ON and Relay OFF Selection screens.
3. Press
selection and go to Relay OFF Selection Screen.
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 NC to C are closed, and NO to C contacts are open.
Note: The value ranges and minimum differential are determined by the Sensor Type selected for the
OFF
1
sensor that this output references and are enforced in the Relay ON and Relay OFF Selection screens.
4. Press
selection and go to Minimum Relay ON TIme Selection Screen.
Screen example shows an OFF value of 75 (°F) selected for Relay Output 1.
8 System 450™ Series Control Modules with Relay Outputs Installation Instructions
M
to go to this output's Sensor Selection screen.
or to select the Sensor (Sn-1, Sn-2, or Sn-3) that this output references, then press
to save your sensor selection and go to the Relay ON Selection Screen.
or to select the value at which the output relay turns On, then press
or to select the value at which output relay turns Off, then press
3. For Relay Outputs, see Setting up a Relay Output
(OUTRx) and Table 5 for setup information and
procedures.
For Analog Outputs, see Setting up an Analog
Output (OUTAx) and Table 7 for setup information
and procedures.
Setting up a Relay Output (OUTR
A standard relay output provides On/Off control for your
application based on a fixed setpoint sensor (Sn-1,
Sn-2, or Sn-3).
Table 5 provides information, procedures, and screen
examples for setting up standard relay outputs.
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