Group Types - Lighting Controls Blue Box LT Series Installation, Operation & Maintenance Manual

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time schedule . If activated again, the toggle switch will
turn the loads back on - last input override .

GROUP TYPES

A group describes two things: which relays are
controlled together, and how they are controlled .
Groups MUST BE USED when controlling more
than 8 relays and with all time schedules .
Up to 32 groups are available . Any relay(s) in any
panel(s) can be assigned to a GROUP .
There are two types of GROUPS:
Maintain Style Groups
Just like the maintain control, starting a maintain
contact (or time schedule) will turn a maintain style
group on, and when the contact is open or the
schedule is off, the group is turned off .
When a Maintain style group is first switched on, the
relays within that group are switched on too, with
one exception . (See NO AUTOMATIC ON option
under Programming Groups) .
While the GROUP is "on" the relays within that
group will respond normally when switched on and
off by a digital wall switch .
The relays are switched off when the GROUPS are
switched off, with one exception (see MAINTAIN +
BLINK below) .
When "Maintain+Timer" or "Maintain+Off Sweep"
Groups are off the relays are in "timer mode": which
means if the relays are turned on when the Group is
off, they will remain on for a (programmable) timed
period . Maintained Groups are used in the following
circumstances:
1 . Outdoor time schedules usually use a Maintain
style group .
2 . Indoor time schedules
Maintain+Timer or Maintain+Blink Group which
allow relays to be in a "timer mode" when the
group is off .
3 .
Momentary Style Groups
Any momentary pulse, or any single button press will
trigger a momentary group once .
Momentary style groups are used in the following two
circumstances to turn relays on or off:
1 .
2 .
usually use a
THE BLUE BOX LT PROGRAMMING
When a photocell is connected to a photocell
card (not directly to the BLUE BOX panel) and
turns more than 8 relays both on and off .
Used by time schedules or for any
maintained device (eg . photosensor
(BASIC)
card triggers) controlling more than
MAINTAIN
8 loads . When the GROUP is ON
GROUP
the loads are ON, and when the
GROUP is OFF, the loads are OFF .
Usually used only with Time
Schedules . When the GROUP is
ON, the loads are ON . When the
GROUP is OFF and relays in that
MAINTAIN +
GROUP are in Timer Mode, timer
TIMER
duration is programmable . When
GROUP
the GROUP is ON, the relays
cannot be in TIMER MODE, when
the GROUP is OFF, you can place
the relays in TIMER MODE .
Works the same as MAINTAIN +
MAINTAIN +
TIMER except a "blink" or "flick"
BLINK
warning is issued prior to shutting
GROUP
loads off .
When a digital switch, a contact closure, or
photocell trigger switches more than 8 relays
either "on" or "off " only or,
When a time schedule only switches relays either
"on" or "off, " but not both . ( See table below) .
MOMENTARY "On Mode" - any number of loads
ON
MOMENTARY "Off Mode" - any number of loads
OFF
MOMENTARY "Mixed Mode" - any number of
MIXED loads