3
at which the light will turn o. Seng these set points is covered later in this
document under “Conguring the ERDRC”
The daylight harvesng applicaon will override the Auto-ON feature of
occupancy sensors if the light level is sucient and calls for the lights to be o.
For example: If the daylight applicaon calls for the light to be o, the moon
sensor will not turn the lights back on.
The daylight harvesng applicaon can be overridden by a manual wall switch
when the light is o by clicking on. If the light level remains above the Light-OFF-
Set point, the controller will turn the light o again aer 250 seconds.
The daylight harvesng applicaon does not aect the operaon of the wall
switch or moon sensor when the light is on. If the light is on, either the switch
or moon sensor can override the light o.
Occupancy Based Lighng Applicaons
The ERDRC will turn the lights OFF when there is no moon detected in the room
indicated by an Echoex moon sensor. The ERDRC can be congured to turn
the lights ON immediately (Auto-ON) if the moon sensor detects moon, see
the secon tled “Conguing the ERDRC“.
There is a congurable me period between the last detected moon and the
point where the lights turn o. There are 6 sengs for this me out period. The
me out period is 15 minutes by default but can be set to a value of 5 to 25
minutes in 5 minute increments, see the conguraon secon. The mer will
reset if the sensor detects moon. If the mer expires, the light will turn o.
Mulple moon sensors can be ganged together logically so if only one sensor
detects moon or the internal mer has not expired, the light will remain on.
Turning the lights on with a linked wall switch will reset the mer. Turning the
light o with the wall switch will override Auto-ON (if enabled) for the duraon
of the me out period. Any moon detected by the sensor during this period will
reset the mer. Once the mer has expired, the override will be released. If the
wall switch is used to turn the light on during the me period, the override will
also be released.
Wired Occupancy Sensor Applicaons
The ERDRC has a 24V output to power a wired occupancy sensor. It can be used
with any brand of 24V occupancy sensor using single or dual technology. When
a wired sensor is connected to the low voltage input, the ERDRC controller
operates the same as if it was a wireless sensor. The occupancy state of a
connected wireless sensor can be shared with other controllers by linking the
ERDRC to those controllers. Linking the ERDRC to other controllers is covered
later in this document under the secon, “Conguring the Status Telegram”.