Intermatic ET70415CR User Manual page 4

interval or pulse duration, then press OK. Remember INTVL or
PULSE override is initiated on demand via the keypad and is not
based on a day and time, as is normal INTVL or PULSE. To
initiate an override interval or pulse first set the RUN/SET switch
to RUN and set the switch for the desired load to Enable, then
press the ON/OFF key for the load you wish to override. The
green load indicator flashes during the interval or pulse to show
override selection. At the end of an override interval or override
pulse initiated by the ON/OFF key, the load and green LED will
turn off, unless a programmed ON event has occurred during the
override time period. This allows the override interval to be used as
an "early ON" as well as a "late OFF" override after normal hours
of operation without interfering with normal scheduled ON/OFF
times. The load will respond to any subsequent program schedules.
You may also initiate an override interval or pulse by pressing and
holding the INTVL key then pressing the ON/OFF key for the
Enabled circuit you wish to override. This allows an override to be
started without turning off a load that is already on. This is useful
for HID lighting applications where even a brief turn off will cause
loss of lighting for several minutes. Note that override can only be
set for an interval or pulse, not both.
An override interval or pulse may be ended early only by pushing
the ON/OFF key or by a power interruption. Thus, a programmed
OFF event will not end an override interval or pulse. At the same
time, any ON or OFF events which occurred during the override
period will be in effect at the completion of the override time
period. This allows applications such as a programmed ON time of
8:00 A.M. with a 2 hour interval override initiation at 7:30 A.M.
At 9:30 A.M., after the two hour override, the lights will remain
ON since during the override period they were programmed to
switch ON (at 8:00 A.M.).
The override pulses are precise to-the-second whereas override
interval duration is the program duration ± 30 seconds, dependent
on the instant in time when the override was initiated.
The Remote Override feature allows a switch contact to initiate an
override interval or pulse. The timer detects the closing or opening
of switch contacts wired to the Remote Override Connector (on
back of Logic Module). This allows the remote switch(es) to be
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maintained (toggle) or normally open or normally closed
momentary (pushbutton). As with the front panel initiated
override interval or pulse, the relevant circuit must have either an
interval or pulse duration programmed and its slide switch must
be in the Enable position, before an override interval or pulse can
be initiated. Any additional remote switch activity during the
interval or pulse will restart it. At the end of a remotely initiated
override interval or pulse, the circuit will return to its normally
programmed condition.
If no interval or pulse duration has been programmed for a given
circuit, the remote override can be used as a remote ON/OFF
switch. The relevant circuit must be enabled. Each push of the
remote pushbutton or flipping of the remote toggle switch will
cause that circuit to change to the opposite state. As with overrides
initiated by the front panel ON/OFF key, the circuit will respond
to any subsequent programmed schedules. See Special Instructions
for wiring.
ASTRO is pressed (instead of a time entry) after selecting a day
or day group if you want switching to occur at Sunrise and/or
Sunset. If ASTRO is pressed during the "Switch On" prompt, the
timer prompts for sunset. If ASTRO is pressed during the "Switch
Off" prompt, the timer prompts for sunrise. For applications
requiring an ON event at sunrise and/or an OFF event at sunset,
press AM or PM respectively to toggle the sunset/sunrise prompts.
Interval programming may be used to extend the "Switch On"
and "Switch Off" times of ASTRO schedules. This is useful when
some circuits require differing offsets from the ASTRO ON/OFF
times that were entered during SET UP. To use this feature, enter
the earliest required ASTRO ON/OFF times during SET UP,
then use intervals of various durations to delay the ON/OFF times
as required. Specifically, use an ON interval to delay an ASTRO
turn OFF time and use an OFF interval to delay an ASTRO turn
ON time. Refer to the "Programming Examples" booklet for
detailed instructions. To program ASTRO switching with a Pulse or
Interval, press ASTRO, then PULSE or INTVL, followed by entering
a pulse or interval duration. . .
all before OK is pressed.
Next Generation
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