LT4H-W
Delayed
one shot
A
: Pulse input
PULSE
: Integrating input
INTEGRATION
• The pulse input mode starts the operation by starting the
start input.
• When using the unit by starting it with the power on, short-
circuit the start terminal (8-pin:
Q
to
R
, 11-pin:
E
to
Y
and
screw terminal:
to
).
9
6
• Each signal input such as start, reset, stop and lock inputs is applied by short-circuiting its input terminal and common terminal
(8-pin type: terminal
Q
, 11-pin type: terminal
E
and screw terminal: terminal
) respectively.
• The 8-pin type does not have a stop input or lock input.
6
• The integrating input mode is operated by the integrated
time of the start input. In other word, the timer operates only
when the start input is performed.
• When the elapsed value is cleared by the reset input, the
output is reset.
• When using the unit by starting it with the power on, short-
circuit the start terminal (8-pin:
Q
to
R
, 11-pin:
E
to
Y
and
screw terminal:
to
).
9
6
OFF-start/1 operation t
1
<T
1
, t
2
<T
2
A
PULSE
Power
Output
Reset
Start
Stop
T1
T2
ta
ta+tb=T1
tc
tb
td
t1
tc+td=T2
T1 t2
supply
OFF-start/1 operation t
1
<T
1
, t
2
<T
2
A
INTEGRATION
tb
Stop
Start
Reset
Output
Power
ta
T1
tc
td
te
tf tg
th
ta+tb=T1
t1
tc+td=T2
tg+th=T2
t2
te+tf=T1
supply
OFF-start
flicker
B
OFF-start/repeating operation t
1
<T
1
, t
2
<T
2
B
PULSE
tc
Power
Output
Stop
Reset
Start
T2
T1
T2
T1
ta
tb
td t1
T1 t2
ta+tb=T1
tc+td=T2
supply
OFF-start/repeating operation t
1
<T
1
, t
2
<T
2
B
INTEGRATION
tb
Start
Reset
Stop
Output
ta
Power
T1
tc+td=T2
te
tc
td
tf tg
T2
T1
th
t1
ta+tb=T1
t2
tg+th=T2
te+tf=T1
supply
ON-start flicker
C
Remarks
and notes
ON-start/repeating operation t
1
<T
1
, t
2
<T
2
C
PULSE
Start
Reset
Stop
Output
Power
supply
ta+tb=T1
tc+td=T2
ta
tb tc
td t1
t2
T1
T1
T2
T1
T2
ON-start/repeating operation t
1
<T
1
, t
2
<T
2
C
INTEGRATION
tb
Stop
Start
Reset
Output
Power
ta
tc+td=T2
T1
tf tg
tc
td te
t1
th T1
T2
ta+tb=T1
tg+th=T2
t2
te+tf=T1
supply
OPERATION MODE
• Elapsed value cleared when power is turned on.
• Time limit start initiated when start input goes on; start input ignored if time limit interval
is in progress.
• Elapsed value cleared when one operation has been completed.
• Elapsed value not cleared when power is turned on (power failure backup function).
• When power is turned back on, same status is maintained for output as that previous
to power going off.
• Elapsed value cleared when one operation has been completed.
• Elapsed value cleared when power is turned on.
• Time limit start initiated when start input goes on; start input ignored if time limit interval
is in progress.
• Elapsed value not cleared when power is turned on (power failure backup function).
• When power is turned back on, same status is maintained for output as that previous
to power going off.
• Elapsed value cleared when power is turned on.
• Time limit start initiated when start input goes on; start input ignored if time limit interval
is in progress.
• Elapsed value not cleared when power is turned on (power failure backup function).
• When power is turned back on, same status is maintained for output as that previous
to power going off.
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OPYRIGHT
Matsushita Electric Works, Ltd.
