Daylight Harvesting (CO)

The Daylight Harvesting tab configures how each control output uses the measured light level (lux) to maintain a target light level. The list at the top shows every control output with its current daylight settings. Select a row to edit it in the Configuration panel below.

Control output list

Column	Description
Control Output	Name of the control output (Control Output 1 to Control Output 5).
Enabled	Yes when daylight harvesting is enabled for this output, No when it is disabled.
Setpoint	Target light level maintained when the space is occupied, in lux.
Setpoint Unoccupied	Target light level maintained when the space is unoccupied, in lux.
Deadband	Range around the setpoint within which the output level is not changed, in lux.
Prop. Band	Proportional band used by the control loop, in lux.
Delay Off	Time the daylight calculation must stay at zero before the output turns off, in seconds.
Delay On	Time the daylight calculation must stay above zero before the output turns on, in seconds.
Turn Off Below Minimum	Yes when the output can turn fully off once enough daylight is available, No when it only dims to its minimum level.

Configuration

Field	Unit	Description
Enable Daylight Harvesting		When checked, the controller adjusts this control output to maintain the light level setpoint using the measured lux. When cleared, daylight harvesting is disabled for this output.
Setpoint	lux	Target light level maintained when the space is occupied.
Setpoint Unoccupied	lux	Target light level maintained when the space is unoccupied. A value of 0 or more is used directly as the unoccupied setpoint. A negative value is a signed offset from the occupied setpoint (for example, occupied 500 with -100 gives 400, clamped at 0).
Deadband	lux	Range around the setpoint within which the output level is not changed, preventing constant adjustments.
Prop. Band	lux	Proportional band used by the control loop. A wider band gives a smoother but slower response to light changes.
Delay Off	second	Time the daylight calculation must stay at zero before the output is actually turned off.
Delay On	second	Time the daylight calculation must stay above zero before the output is turned on, when it is off.
Daylight Turn Off Below Minimum		When checked, daylight harvesting can turn the output fully off once enough daylight is available. When cleared, the output only dims down to its minimum level and never turns off.