C. To Program Set Points
The EC74/50S offer three event choices: ON, OFF, or pulse
(momentary contact) event. The EC74/50S has 50 set points
assignable to any or all of the four channels.
NOTES:
1.A set point can be assigned to any single day or to any
combination of days.
2.Programming a set point involves two stages: the first
screen displays circuit (channel) number to be programmed
and the second screen displays event type.
3.The “E” key serves as a forward advance key. The “9”
serves as a reverse key.
Step
Key
Description
1
PRG
“cir” for first event is displayed, if no previous
set points have been programmed (press E key
to advance past previous programming.)
2
1, 2, 3 Key in circuit number.
or 4
3
E
Enters circuit number; “--.-- -” appears.
4
#### Key in time of event (and A.M./P.M. if neces-
sary).
5
#
Key in day(s) of week and holiday if desired. If
more than one day is desired, key in additional
days. (Days programmed will flash on display in
sequence.)
NOTE: A day already entered can be removed by pressing
the number key representing that day.
6
TYP
Select a single event type. Press once and a
dash appears on the lower right of the display
selecting an ON event. Press TYP key a second
time to remove dash from lower right of display
selecting an OFF event. Press TYP key a third
time and a flashing dash appears on the lower
right of display selecting a pulse (momentary
contact) event.
7
E
Enters set point.
Repeat steps 2-7 for other set points.
8
RUN
Exits programming mode.
8
