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Panasonic ST4 Instruction Manual
2.6 Adjustment and Operation
47
In case that even if the light beam between the emitter and the receiver of the
ST4-A
□
is interrupted and the beam interruption indicator (red) on the
emitter/receiver on the ST4-A
□
does not light up, or the control output indicator
(green) on the controller does not turn off, see (see "Troubleshooting" on page 79)
and report the symptoms to the maintenance staff in charge.
NOTE
If the indicators show reception of the light beam even though the beam is
interrupted by hand, check whether there is a reflective object or extraneous
light source near the sensor.
2.6.3 Operation
This device starts operation two seconds after the power is on. Configure the control system
accordingly!
T
ON
T
ON
T
OFF
T
ON
:
140ms or less, T
OFF
:
25ms or less
Beam
received
Beam received
condition
Emission
condition
Power supply
Reset input
Beam
interrupted
Emission
ON
Emission
halt
ON
OFF
Open
OFF
2s or less
120ms or more
120ms or more
Control output
(OSSD 1 / 2)
0V/+V
Timing chart for operation with manual reset
T
EIN
T
EIN
T
AUS
T
EIN
: max. 90ms, T
AUS
: max. 25ms
Strahl
empfangen
Empfangs-
status
Emissions-
status
Stromver-
sorgung
Strahl
unterbrochen
Emission
EIN
Lichtunter-
brechung
EIN
AUS
AUS
max. 2s
min. 100ms
Schaltausgang
(OSSD 1 / 2)
Timing chart for operation with automatic reset
Rugghölzli 2
CH - 5453 Busslingen
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
www.sentronic.com
Produkte, Support und Service
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