5
MODE 8 LATCH OUTPUT AT PRESET 1 AND ZERO, MANUAL RESET TO
PRESET 2, TIME STOPS AT ZERO (INSTANTANEOUS & TIME
DELAY CONTACT, TIME DOWN)
In this mode, as the unit times down from preset 2, output 1 will
latch on when preset 1 is reached and output 2 will latch on when
zero is reached. The unit will stop timing when zero is reached.
This mode also has an input tracking feature (INSTANTANEOUS
CONTACT) where if preset 1 is set to zero, output 1 will turn on when the
input is activated, and it will turn off when the input is deactivated. (Output 2
is the TIME DELAY CONTACT.) When a manual reset✰occurs, the unit will
Reset to Preset and the outputs, if latched on, will unlatch.
To use as an INSTANTANEOUS AND TIME DELAY CONTACT timer,
set preset 1 value to zero and set preset 2 value to the desired delay value.
When “RUN” is at a low level, time will decrement and output 1 will be
activated. Output 2 (TIME DELAY CONTACT) will activate when zero is
reached. To recycle use 1) reset, or 2) set the power-up reset switch to enable,
then remove and reapply input power.
MODE 9 LATCH OUTPUT AT PRESET 1 AND ZERO, MANUAL RESET TO
PRESET 2, TIME CONTINUES AT ZERO (INSTANTANEOUS & TIME
DELAY CONTACT, TIME DOWN)
In this mode, as the unit times down from preset 2, output 1 will
latch on when preset 1 is reached, and output 2 will latch on when
zero is reached. Time will continue to accumulate after zero is
reached. This mode also has an input tracking feature (INSTANTANEOUS
CONTACT) which if preset 1 is set to zero, output 1 will turn on when the
input is activated, and it will turn off when the input is deactivated. (Output 2
is the TIME DELAY CONTACT.) When manual reset✰occurs, the unit will
Reset to Preset 2 and the outputs, if latched on, will unlatch.
To use as an INSTANTANEOUS AND TIME DELAY CONTACT timer,
follow the description under Mode 8.
MODE 10 OUTPUT 1 TURN OFF AT ZERO, LATCH OUTPUT 2 AT ZERO,
MANUAL RESET TO PRESET 2, TIME STOPS AT PRESET 2
(INTERVAL, TIME DOWN)
In this mode, as the unit times down from preset 2, output 1 will
turn on when preset 1 is reached. When zero is reached, output 2
will turn on and output 1 will turn off. Output 2 will remain latched
on until a manual reset occurs, and the unit will stop timing when zero is
reached. This mode also has an input tracking feature where if preset 1 is set
to zero, output 1 will turn on when the input is activated, and it will turn off
when the input is deactivated. (After zero is reached output 1 will turn off and
stay off, regardless of the input condition, until a manual reset✰occurs.) When
a manual reset✰occurs, the unit will Reset to Preset 2 and the outputs, if
latched on, will unlatch.
MODE 11 OUTPUT 1 TURN OFF AT ZERO, LATCH OUTPUT 2 AT ZERO,
MANUAL RESET TO PRESET 2, TIME CONTINUES AT PRESET 2
(INTERVAL, TIME DOWN)
In this mode, as the unit times down from preset 2, output 1 will
turn on when preset 1 is reached. When zero is reached, output 2
will turn on and output 1 will turn off. Output 2 will remain latched
on until a manual reset occurs, and the unit will continue to accumulate time
after zero is reached. This mode also has a input tracking feature where if
preset 1 is set to zero, output 1 will turn on when the input is activated, and it
will turn off when the input is deactivated. (After zero is reached, output 1 will
turn off and stay off, regardless of the input condition, until a manual reset✰
occurs.) When manual reset✰occurs, the unit will Reset to Preset 2, and the
outputs, if latched on, will unlatch.
MODE 12 TIMED OUTPUT AT PRESET 1 AND ZERO, MANUAL RESET TO
PRESET 2, TIME STOPS AT ZERO
In this mode, as the unit times down from preset 2, output 1 will
turn on when preset 1 is reached, and output 2 will turn on when zero
is reached. The outputs will turn off after their respective
programmed time values have occurred. Also, the unit will stop timing when
zero is reached. When a manual reset✰occurs, the unit will Reset to Preset 2.
Manual reset✰will terminate the timed outputs, if the outputs are still turned on.
✰- Manual reset, either by front panel reset (if enabled) or remote reset, is
always active, and will override any present condition or state of the timer.
MODE 13 TIMED OUTPUTS AT PRESET 1 AND ZERO, AUTOMATIC RESET
TO PRESET 2 AFTER TIMED OUTPUT 2 ✝(TWO LOBE OFF/ON
RECYCLING, TIME DOWN)
In this mode, as the unit times down from preset 2, output 1 will
turn on when preset 1 is reached and output 2 will turn on when
zero is reached. The outputs will turn off after their respective
programmed time values have occurred. Also, at the end of timed output 2, the
unit will automatically Reset to Preset 2 and start the cycle over. Manual
reset✰will turn off both outputs, if turned on, and reset the time to preset 2.
When used as an OFF/ON RECYCLING timer, the total cycle time is equal
to the sum of the preset 2 value and the programmed timed output 2 value. The
first lobe of the cycle will use output 1. The first ON delay is equal to the
programmed timed output 1 value.✝✝ The second lobe of the cycle will use
output 2. The second ON delay is equal to the programmed timed output 2
value.✝✝ When “RUN” is at a low level, time will decrement. Output 1 (first
ON delay) will activate when preset 1 is reached, and output 2 (second ON
delay) will activate when zero is reached. The unit will recycle at the end of
timed output 2.
MODE 14 TIMED OUTPUTS AT PRESET 1 AND ZERO, AUTOMATIC RESET
TO PRESET 2 AT ZERO ✝(TWO LOBE OFF/ON RECYCLING, TIME
DOWN)
In this mode, as the unit times down from preset 2, output 1 will
turn on when preset 1 is reached and output 2 will turn on when
zero is reached. The outputs will turn off after their respective
programmed time values have occurred. Also when zero is reached, the unit
will automatically reset the time to preset 2 and start the cycle over. (Output 2
will remain on until its time value has occurred.) Manual reset✰will turn off
both outputs, if still turned on, and reset the time to Preset 2.
When used as an OFF/ON RECYCLING timer, the total cycle time is equal
to the preset 2 value. The first lobe of the cycle will use output 1. The first ON
delay is equal to the programmed timed output 1 value.✝✝ The second lobe of
the cycle will use output 2. The second ON delay is equal to the programmed
timed output 2 value.✝✝ When “RUN” is at a low level, time will decrement.
Output 1 (first ON delay) will activate when preset 1 is reached, and output 2
(second ON delay) will activate when zero is reached. The unit will recycle at
the beginning of timed output 2.
MODE 15 OUTPUT 1 TURN OFF AT ZERO, TIMED OUTPUT 2 AT ZERO,
AUTOMATIC RESET TO PRESET 2 AFTER TIMED OUTPUT 2 ✝
(INSTANTANEOUS & TWO LOBE OFF/ON RECYCLING, TIME
DOWN)
In this mode, as the unit times down from preset 2, output 1 will
turn on when preset 1 is reached. When zero is reached output 2
will turn on and output 1 will turn off. Output 2 will turn off after
its programmed time value has occurred. At the end of Timed output 2, the unit
will automatically Reset to Preset 2 and start the cycle over. This mode also
has an input tracking feature (INSTANTANEOUS CONTACT) where if preset
1 is set to zero, output 1 will turn on when the input is activated, and off when
the input is deactivated. (After zero is reached, Output 1 will turn off and stay
off, regardless of the input condition, until a reset occurs.) Manual reset✰will
turn off both outputs, if turned on, and reset the time to preset 2.
When used as an OFF/ON RECYCLING timer, the total cycle time is equal
to the sum of the preset 2 value and the programmed timed output 2 value. The
first lobe of the cycle will use output 1. The first ON delay value is equal to
the difference between preset 1 and zero (this is because output 1 will turn off
at zero). The second lobe of the cycle will use output 2. The second ON delay
value is equal to the programmed timed output 2 value.✝✝ When “RUN” is at
a low level, time will decrement. Output 1 (first ON delay) will activate when
preset 1 is reached, and output 2 (second ON delay) will activate when zero is
reached (output 1 will deactivate when zero is reached). The unit will recycle
at the end of timed output 2.
✝- The timed output value must be less than the value required to time from
the reset condition to the preset point. Otherwise, the output will appear to
be latched on.
✝✝ - The maximum ON delay is 99.99 seconds.
Note: Many other modes of operation, too numerous to mention here, are
possible with the Libra Timer. These “extra” modes of operation are
accomplished by tying inputs to outputs, by using power up reset
functions, etc.
MODES OF OPERATION FOR DUAL PRESET LIBRA TIMER (Cont’d)
