©2025 Copeland LP.
026-1803 R13 Supervisor I&O User Guide 9 - 15
9.11.2 Light Level Sensor Verification
If Light Level and Solar are used together Light Level sensor
checking is enabled if light level proof is enabled. If the Light
Level Sensor and Solar Calculation do not match for a user-
specified time delay, an alarm is generated. This alarm is
submitted to the alarm subsystem.
The text of the alarm is “Light Level Sensor - Possible Failure”.
9.11.3 Solar Calculation
The Sundown input tells the Lighting Control application
when sundown begins and ends (ON when sunset occurs,
and OFF at sunrise). It is automatically tied to the SUNDOWN
output of the Time and Date cell, and should not be redefined
if you plan on using solar calculations for this Lighting Control
application.
To set up the solar cell calculation (sunrise/sundown), this
can be configured in the Global Data application.
In Global Data, the Lighting application automatically
receives the information when the sun sets.
9.11.4 Digital Lighting Output
The application supports a digital lighting output. The state of
this output is determined based on the outcome of the
lighting control method that is selected.
9.11.5 Light Proofing
Light output proofing is supported by the application.
The following parameters are provided by the application to
configure proofing:
• Proof Type - Determines what light state(s) the
application will use proof checking for in the Proof Type
field. There are three options:
○ ALL Values - Proof checking verifies the lights come ON
when called to be ON and OFF when called to be OFF.
○ ON Values - Proof checking verifies only that the lights
have turned ON when called to be ON.
○ OFF Values - Proof checking verifies only that the lights
have turned OFF when called to be OFF.
• PROOF IN - Proof input.
• Proof Delay - When the Lighting Control application
detects a proof failure, it waits for the Proof Delay time
period to pass before turning on the Proof Status output.
If during this delay the proof input returns to normal, the
delay is canceled and the Proof Status output remains
OK.
• Proof Latch - Once the Proof logic has recorded a proof
failure and the Proof Status output has transitioned to
FAIL, the output remains in FAIL until the control input
has been equal to the proof input for an amount of time
equal to the Proof Latch delay. If during this delay the
proof fails again, the delay is canceled and the output
remains in FAIL.
• Clear Any Match - Enter YES to clear the proof on any
match. If a proof failure should be cleared whenever a
match of any kind is made between the proof input and
the light state, set this to 'Yes.' If the proof failure is to be
cleared only when a match of the type listed in the Proof
Type field is made, set this to “No.”
9.11.6 Minimum On/Off Times
The application supports minimum on and off times for the
digital lighting output.
The following user parameters are provided to configure the
minimum on/off times and the on/off delays for the lighting
output.
• Min ON Time - The least amount of time the command
value must remain ON before the Min On/Off logic allows
a transition to OFF. If the command value has not been
ON for at least this value, the Min On/Off logic replaces
the command value with an ON signal until the Minimum
ON time has been met.
• Min OFF Time - The least amount of time the command
value must remain OFF before the Min On/Off logic
allows a transition to ON. If the command value has not
been OFF for at least this value, the Min On/Off logic
replaces the command value with an OFF signal until the
Minimum OFF time has been met.
• ON Delay - delay between ON cmd and turning lights
ON. When the Min On/Off logic detects a transition in the
command value from OFF to ON, it waits for the ON delay
period to pass before switching its output ON. If during
this delay the command value switches OFF again, the
delay is canceled and the lighting output remains OFF.
• OFF Delay - delay between OFF cmd and turning lights
OFF. When the Min On/Off logic detects a transition in the
command value from ON to OFF, it waits for the OFF
delay period to pass before switching its output OFF. If
during this delay the command value switches ON again,
the delay is canceled and the lighting output remains ON.
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