106 THE BLUE BOX LT FREQUENTLY ASKED QUESTIONS
LCDBBFAQ03Sept08
What does a “maintain” type group do?:Q
When the MAINTAIN group is turned ON, it turns :A
its relays ON. When it is turned OFF, it turns its relays
OFF.
What does a “momentary” type group do?:Q
Momentary groups are usually used with switch but-:A
tons. They can be ON, OFF or mixed.
What is the difference between “maintain” type :Q
groups and “momentary” type groups?
A MAINTAIN group can be turned ON and OFF. :A
Once it is turned ON, it stays on until turned OFF.
When it is turned OFF, it stays OFF until turned ON.
A MOMENTARY ON group can only turn its relays
ON, never OFF. A MOMENTARY OFF group will al-
ways turns its relays OFF. A MOMENTARY MIXED
group turns some relays ON and some relays OFF.
Which type of group is most commonly used for :Q
schedules and why?
Usually schedules operate “maintain” type groups. :A
This is because schedules are used to turn lights on
and have them stay on for a period of time, and then
turn them off. Only maintain groups can be turned
on and off.
When would you use a “momentary” type group :Q
with a schedule?
In those rare instances when a schedule needs to :A
just turn lights on (without a corresponding off com-
mand) or off (without a corresponding on command).
For example, if you wanted the lights turned off by a
schedule at 8pm every day, but didn’t want any on
time, you would create a schedule that activates a
Momentary OFF group.
What does a MAINTAIN + TIMER group do?:Q
When it is turned ON, it turns its relays ON. When :A
it is turned OFF, it turns off its relays AND enables a
timer on each relay. If any of the relays in timer mode
are flipped on with a switch, etc., they will automati-
cally turn back off again after the timer has expired.
How do you tell if a relay has a timer and what timer :Q
value is on it?
If you check the relay properties screen for that relay, :A
it will say REGULAR TIMER MODE: followed by a
number, e.g. TIMER 00:20:00 H/M/S.
How do you tell if a relay timer is active?:Q
If the relay is on, the manual override screen will show :A
the normal ON square symbol with an additional lit-
tle “leg” on the bottom left corner, like this:
Relay ON with no TIMER:
Relay ON in TIMER mode:
What does a MAINTAIN + BLINK group do?:Q
It is identical to a MAINTAIN + TIMER group, with :A
the only addition being that when you turn a MAIN-
TAIN + BLINK group OFF, the lights will blink or flick,
and then wait for a specified amount of time before
the relay turns off. This time period is called the “Blink
time out.” This time period is set in the MAINTAIN +
BLINK group under “SET TIMER”.
How do you take a relay out of timer mode?:Q
Find out what MAINTAIN + TIMER or MAINTAIN :A
+ BLINK group that relay is in, and turn that group
ON.
How can you tell if a relay has a “Blink Timer”?:Q
If you check the relay properties screen for that relay, :A
it will say BLINK One or BLINK Two: followed by a
number, e.g. BLINK One: 20:00 M/S.
How can you tell if a relay is in a blink warning time-:Q
out?
The manual override screen will show the relay as :A
being on with TWO little legs on the bottom corners,
as shown here:
Relay on with no BLINK or TIMER:
Relay in final BLINK Warning Timer:
What is the purpose of the “Blink time OUT”.:Q
It gives the occupants of the area a warning that the :A
lights are about to turn off. They can extend the time
GROUPS FAq
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