Universal Devices ISY-994i Series, User Manual

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11.8.1.10Program #10 - Main Bath Motion Timer – NOT Enabled
If
Status 'Main Bath Contact.1' is Off
Then
Wait 40 minutes
Run Program 'Main Bath Motion Timer' (Else Path)
Else
Wait 5 minutes
Set Scene 'sMain Bath All Slow' Off
When the motion sensor status becomes False, the re-trigger program (program 9) starts
the timer program (program 10). Should new motion occur during the countdown (or the
Main Bath Motion Timer Enable flag become False), the re-trigger program halts the timer
program.
When the timer program is started, it will run Then if the door is closed; if the door is open
it will run Else. The Else provides the five-minute interval, while the Then provides a 40-
minute interval before calling the Else for the final five minutes, prior to turning the scene
(lights and fan) off.
Notice that program 10 is not enabled, and this fact is important since we don't want the
program to run automatically, but only when called.
Another modification made in this program is to turn the lights and fan off using a sMain
Bath All Slow scene, which has the fan switch (relay) ramp-rate set to .1 seconds (fastest
possible), but the light switch set to a 30 second or one-minute ramp rate. This rate of
change in light level is fast enough for the occupant to notice it, and to make some motion
to retrigger the light, and is slow enough to give him plenty of time.
This means we have two separate scenes for the lights; one with a quick ramp rate for
turning the light on, and the other with the slow ramp rate for turning the light off.
Alternately, you could use a single scene with a slow ramp rate for turning the light off, and
then use Fast On with the same scene to turn it quickly on.
My preference is to use two scenes, because using Fast On will cause the lights to come on
to 100% with the fastest possible ramp rate (.1 seconds or nearly instantaneous). I usually
set my lights to come on to 90% with a .5 second ramp rate. This slower ramp rate and
reduced level reportedly should increase the life of the bulb significantly.