1) Set the minimum and maximum brightness, the Fade ON and Fade OFF time as well as the brightness of the LED indicator ring around the push button switch.

2) Daylight Harvesting settings

3) Motion Sensor Sensitivity.

4) Installation details.

5) Retrieve and Update Buttons

Range: 1.0 to 100.0%

Factory Default:
Maximum Brightness - 100.0%
Manual Dim Minimum - 15.0%
Auto Dim Minimum - 15.0%

Note:New LED luminaires usually have higher efficacy (amount of light output per W) and you could save more energy by setting the upper limit of the brightness settings. When the LED luminaires become older its light output begins to drop and you can then adjust upward the maximum allowable brightness so that the space can still be lighted to the same brightness as when the luminaires was still new. It can further extend of life of your LED luminaires beyond its stated design life limit.

Manual Dim Minimum (%):The lower limit for manual dimming (when press and hold on the push button or adjust from a software running on a PC or handheld device)- The controller will ignore the manual dimming command when the light brightness has already reached the minimum value.

Note: Some luminaires may have zero light output when dimmed below a certain thresold. So if the Manual Dim Minimum is set below this thresold it allows you to manually dim the light to zero light output even if occupancy ON is enabled.

Auto Dim Minimum (%): This is the minimum brightness that automatic dimming (as a result of daylight harvesting) will not go below. Additionally, when a lighting zone is set to be turned off due to vacancy time-out, the controller will first dim the light to this brightness level and start a "Delay-Before-Off" countdown timer. It will only actually turn off the power to light after the "Delay-Before-Off" countdown timer has expired. (The "Delay-Before-Off" countdown timer preset value is defined in the "Basic Config." tab).

Note: Some luminaires may become unstable (flashing) if it is dimmed below some allowable minimum brightness level and you should ensure that both manual and auto dim minimum is set to above the thresold.

Range: 0.01s to 10.00s

Factory Default:

Fade ON Time: 3.00s
Fade OFF Time: 7.00s

Similarly when ZC001 automatically dim down the lights it will gradually turn down the brightness slowly and smoothly until it reaches the "Auto Dim Minimum (%). We call this the "Fade OFF" stage.

The time it takes for the Fade ON and Fade OFF can be set by the user through these two parameters. The "Fade On Time (Auto/Man.)" setting is the time it takes for the lights to brighten from minimum to the maximum brighness and the "Fade Off Time (Auto)" setting is the time it takes for the lights to dim from the maximum to the minimum level. E.g. if current light level is 50% and Fade OFF Time is 7.00s, it will takes about (50-10)/1(100-10) * 7.00 = 3.11 seconds to dim from 50% to 10% light level.

Note that the controller uses the "Fade On (Auto/Man.)" setting for both manual and auto switching ON of the lights. However, the "Fade OFF" setting is only used for automatic dimming. When you manually turn off the light then the controller will use an internal Fade OFF time of 1 second regardless of the "Fade Off (Auto)" value. The reason is that a long Fade OFF time when automatically dim down the light will not give a shock or a discomforting experience to the users. However, when you intend to turn OFF the lights manually by pressing the push button then you would want to be able to quickly confirm that the lights have been turned off before you leave the premises.

Thus the controller behave similar to a photo-eye controlled occupancy sensor that only turns ON the lights at night when the zone is dark.

To find out the current lux reading of the zone, left-click the "View Current Lux" button which will bring up the Monitoring and Control window that lets you read the current lux and you can experiment with a thresold lux value that you feel would fit your requirement.

This setting is disabled by default (by setting the "Measured Lux <= 0"), which means that occupancy ON will turn ON the lights regardless of the current brightness.

The above are factory default settings.

We recommend that you keep these settings at their factory default level unless you have special reasons to do so (e.g. in a dark room or theatre where indicator brightness could be disturbing to the occupants) and you may then set the brightness level of the High, Mid and Low indicator to between 1 and 100%.

For Daylight Harvesting to work effectively the light sensor must first measure the brightness of the artificial lights that it can deploy and set its P, I and D parameters. This is achieved through the PID Auto-Tuning process. Before you can use the Daylight Harvesting feature you must tune the PID once. Click on the "Calibrate" button to start the tuning process. It will takes about 10 seconds to complete the tuning process.

*Note: Auto PID Tuning can also be achieved using the Push Button as decribed in the ZC001 installation guide.

An integrated lux meter on board every ZC001 continuously monitors the brightness of the space under it and it then employs the industrial grade PID (Proportional, Integral and Derivative) control technology to automatically adjust the power applied to the lighting fixture to compensate for the presence of the daylight that enters the work space. The brighter the day light is, the dimmer the artificial light will be (down to the minimum light level settings).  When the daylight has moved away during the course of the day the artificial light will then brighten up to compensate for the lack of daylight so that the work space is always adequately lighted. 

This control is completely hands free and is so seamless that you will barely notice changes in the brightness of the work space regardless of whether it is a sunny or cloudy day outdoor.

The daylight harvesting can be deployed even in space that do not normally get the sun light. For example in a large area that is divided into multiple zones, the daylight harvesting control can adjust the light of the individual zones in response to whether the other zones are lighted up. E.g. in an area that has four separate zones and all of them are lighted up at the same time, each zone can potentially  lower its own brightness level to achieve desired brightness level. If 3 other zones are all dimmed down or turned OFF then the only zone that is lighted would brighten up more in order to compensate for the lack of lights coming from the adjacent zones.

Factory Default : 3 (Most Sensitive)

When set to 5 (most sensitive), a single trigger of the motion sensor will send the ZC001 into control actions. When set to lower sensitivies more triggers of the sensor are required to activate the motion sensing/Vacancy OFF actions.

There may be situation that you may not want the motion sensor of a zone to be triggered when you merely walk pass it from a distance. You can therefore set a lower sensitivity value in order to prevent false triggering.

ALEC feature an intelligent algorithm such that the lower sensitivity is only applicable when the zone is already in vacancy state (i.e. either turned off completely or dimmed to a "partial off level"). Once the zone is triggered to brighten up its sensitivity will be set to the maximum sensitivity. This ensure that the lights in the zone will not be falsely turned OFF or dimmed down due to lower sensitivity setting.

These are for information only.

The "Installed Date" field is editable and may be updated back into the ZC001.

The read-only "Last Change" date records the last time the configuration has been changed.

The "Software Ver"  is the Control Program File Name that is loaded into the ZC001 and is for information only.

When you have made the changes you must click the "Update" button to write the new settings into the controller. The controller will assume the new settings immediately.

The RED "Reboot" button can be used to reset the controller if there is any serious and unexpected problems occurred. Its net effect is the same as turning OFF power to the controller and then power ON again. The zone controller will start up afresh and re-initialized all the hardware and firmware settings and continue to run its control program.