Panasonic LS-400 Series Operation Manual page 11

TIMER : Timer Setting Mode
Refer to p. 23 for setting procedure
CUST : CUSTOM Mode
Ramco National
(800) 280-6933
www.panasonicsensors.com
When using rising differential mode
For L-ON, output is ON for a constant period of time when the incident light
intensity is rising.
For D-ON, output is OFF for a constant period of time when the incident light
intensity is rising.
Incident
light
intensity
Output
operation
ON
L-ON T
OFF
ON
D-ON
OFF
When using trailing differential mode
For L-ON, output is ON for a constant period of time when the incident light
intensity is trailing.
For D-ON, output is OFF for a constant period of time when the incident light
intensity trailing.
Incident
light
intensity
Output
operation
ON
L-ON
T
OFF
ON
D-ON
OFF
This sets timer operation and the timer period. The setting can be selected from
Without timer / OFF-delay / ON-delay / ONE-SHOT timer. The factory setting is
'Without timer'.
Timer period: Approx. 1 to 9,999 ms
* When using rising / trailing differential mode, the timer is set automatically to
ONE-SHOT timer.
* For products manufactured up until June 2004 (~ Lot No.: 4F □ ) timer modes
other than ONE-SHOT timer cannot be used in differential modes.
Time chart
Sensi n g condi t i o n
Timer operation
Output operati o n
Light-ON
(Without Timer)
Dark-ON
Light-ON
(ON-delay)
Dark-ON
Light-ON
(OFF-delay)
Dark-ON
Light-ON
(ONE-SHOT)
Dark-ON
Timer period T Approx. 1 ms to 9,999 ms
1
* OFF-delay: Extends the output signal for a fixed period of time.
This function is useful if the output signal is so short that the connected device cannot
respond.
ON-delay: Neglects short output signals.
As only long signals are extracted, this function is useful for detecting if a line is clogged, or
for sensing only objects taking a long time to travel.
ONE-SHOT: Outputs a fixed width signal upon sensing.
This function is useful when the input specifications of the connected device require a
signal of fixed width. Of course, it is also useful for extending a short width signal to a
desired width.
This is used to make detailed settings for functions selected in PRO5 mode. Out of
the response time change function, M.G.S. function, emission halt function, data
bank function and code setting function, one of these functions selected in PRO5
mode can be set in detail. Refer to the pages for each function for details on the
setting methods.
10
* The output time 'T' can be set by changing
the timer period in timer setting mode
(initial value: 10 ms).
Time
T
* The output time 'T' can be set by changing
the timer period in timer setting mode
(initial value: 10 ms).
Time
T
T
1
T
1
T
1
T
1
T
1
T
1
Beam-received
Beam-i n terrupted
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF