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7. Select the following time options:
• Min On Time: Default minimum on time for
equipment is 5 minutes. Enter new value, if
necessary, according to manufacturer’s
recommendations. Specified range is 0 to 254
minutes.
• Min Off Time: Default minimum off time for
equipment is 5 minutes. Enter new value, if
necessary, according to manufacturer’s
recommendations. Specified range is 0 to 254
minutes.
• Bypass time: Default bypass time is 180 minutes.
Enter number of minutes the equipment will be in
occupancy mode when a bypass is triggered.
Specified range is 0 to 1080 minutes.
Configuring XL15C Analog and Digital Outputs
Analog Outputs
The XL15C controller has 6 Analog Outputs.
Analog Outputs are used to control variably driven controller
devices, such as damper actuators, valve actuators, variable
speed fans, step controllers and other transducers. The
analog outputs are 4-20 mA current outputs (max. load 600
ohms) with a 7+ bit resolution.
Each Analog output may be configured as Analog or Digital.
Analog outputs configured as Analog can drive an analog load
and one configured as Digital can drive a digital load.
Digital Outputs
The XL15C has 8 Digital Outputs.
Digital Outputs are often used to control lighting, fans, and
HVAC equipment.
Each Digital output may be configured as Digital, PWM or
Float. Digital outputs configured as Digital can drive an digital
load and one configured as PWM or Float can drive an analog
load.
Purpose
Configure an analog and digital output to match the output
device and the control algorithm.
Mode
Configuration can be performed with the wizard Off-line or
On-line.
Limits
The analog outputs can be configured as digital outputs,
however, the digital load must not exceed the 500 ohm
maximum.
Procedure
1. On the Configuration page click the Outputs tab. The
Outputs page appears.
2. To configure Analog Outputs:
a. Choose the output to be defined. There are two pos-
sible analog outputs. Click the down arrow to view
the list of outputs. Select each one, one at a time,
and specify its attributes.
b. Select the analog output from Select Output.
c. Type a Output Name.
d. Select the required output from the Output Kind
field. The Output Kind must be one of the following
types for analog output:
• Unconfigured
• Analog
• Digital
e. Select the Engineering Units.
f. Select the Link Type and Link Name.
g. Type the output values for 0% & 100% output from
the control loop.
3. To configure Digital Outputs:
a. Select the digital output from Select Output. There
are eight Digital Outputs in XL15A. Default digital
output names are DIGITAL_ OUTPUT 1,
DIGITAL_OUTPUT2, and so on. The name can be
changed to make each output easier to identify. A
digital output name can have a maximum of 18
characters. No duplicate digital output names are
allowed within the page and across pages.
b. Type an Output Name.
c. Select the required output from the Output Kind
field. State of digital output. The output state could
be one of the following types for a digital output:
• Unconfiured·
• Digital·
•PWM·
• Float_Close1·
• Float_Close2·
• Float_Open1·
• Float_Open2
NOTE: At the most four digital outputs can be configured as
two float pairs. If a digital output is configured as
Float_Open then another digital output must be
configured as Float_Close.
d. Select the Engineering Units.
e. Select the Link Type and Link Name.
f. Select the Output State.
The Output State option has two choices: Ener-
gized On and Energized Off. Default selection is
Energized On. Point type is enabled when output
kind is Digital.
g. Type the Motor Speed.
h. Select the Position Start-Up Synchronization.
i. Type the output values for 0% & 100% output from
the control loop.
4. To configure Remote AO, select the Link Type and
Link Name for the remote analog output.
5.
To configure Remote DO, select the Link Type and
Link Name for the remote digital output.
6. To configure Network Outputs, select Link Type and
Link Name for various Nvo modes. These include
NvoApplMode, NvoOccupancy, NvoEconEnale,
NvoCoolUTML, and NvoHeatUtml.