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The TC4-T30 operates three independent timers with 24 different cycles or channels each.
Each timer is connected to an output relay. A cycle is defined by specifying a Start Time along
with either a Stop Time or a Running Time. The Start and Stop Times are clock times whereas
the Running Time is the length of the cycle (in minutes and seconds). Dipswitches inside the
cover of the unit control which method is used to activate cycles for each timer. When the
clock reaches the Start Time for a cycle, the appropriate timer output is activated until the
Stop Time is reached or until the Running Time has elapsed. Each timer can be turned on or
off, activating or deactivating the output for that timer. Each cycle can be enabled or disabled
individually. In addition, the Skip-a-day feature allows you to activate the cycles every other
day for a given timer.
Start Time / Stop Time Definition:
ON
Start Time = 8:00
Start Time / Running Time Definition:
ON
Start Time = 8:00
Programming Example:
PROGRAM T1
Cycle 1
8:00 - 9:30
Cycle 2
10:00 - 11:00
Cycle 3
17:00 - 17:35
Cycle 4
20:00 - 20:30
(i) If two cycles have identical start times for a given timer, only one is activated.
(ii) If a cycle is completely contained within another cycle for the same timer, it will not be
executed.
(iii) If a cycle is defined to start while another cycle is already activated, the second cycle will
start once the first one is completed and will be activated for the entire duration of the Run-
ning Time (if this is the definition used) or for the time remaining until the Stop Time (if this is
the definition used).
6
TC4-T3O.rev.05
Running Time = 90 min; 30 sec
Stop Time = 9:30
PROGRAM T2
8:00 - 8:05
10:30 - 10:35
PROGRAM T3
10:00 - 50 min
12:00 - 10 min
14:00 - 60 min
18:00 - 5 min 20 sec
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