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參數(shù)資料
| 型號(hào)： | E3S-AT91 |
| 廠商： | Omron Electronics LLC |
| 英文描述： | General-Purpose Photoelectric Sensor |
| 中文描述： | 通用光電傳感器 |
| 文件頁數(shù)： | 16/18頁 |
| 文件大小： | 241K |
| 代理商： | E3S-AT91 |
E3S-A
E3S-A
16
Self-Diagnostic Function
Self-
diagnostic
function
—
The self-
diagnostic
alarm output
alerts the
user to this
state if it
continues for
0.3 s.
—
Green Indicator
Stable operating
state with incident
light: Stable
operation is
expected in the
rated temperature
range with the
green indicator
ON.
Conditional
operating state
with incident light:
Stable operation is
expected if the
temperature
fluctuation is within
±
10% of the
primary
temperature.
Stable operating
state with no
incident light:
Stable operation is
expected in the
rated temperature
range with the
green indicator
ON.
Amount of
incident light
1.2 or more
1.0 to 1.2
0.8 to 1.0
0.8 or less
Indicator
Green Red
Green Red
Green Red
Green Red
With this function, the E3S-A sensor checks changes in environmental conditions (especially a change in the ambient temperature) and
self-diagnoses the resistance against the changes. The result is shown by the indicators or an output signal.
Incident light
indicator (red)
With light
incident (red
indicator: ON)
Without light
incident (red
indicator: OFF)
Sensing object
Self-diagnostic example
—
The optical axis misaligned by vibration.
Light decreased by dust.
With light leakage (through-beam and retroreflective
sensors)
Light reflected from the floor or the background (diffuse
reflective sensors)
—
With the influence of
external noise
Sensing
object
Noise
I
EXTERNAL DIAGNOSTIC INPUT FUNCTION
To switch the emission off, short-circuit the gray (pink) and the
black (blue) cords of the emitter of the E3S-AT
K
or the
E3S-AR
K
with the NPN output feature. For the E3S-AR
K
with
the PNP output feature, short-circuit the gray (pink) and the red
(brown) cords.
Light emission
Red (Brown) + V
No emission
Red (Brown) + V
ON
(with PNP output)
Gray (Pink)
(External-
diagnostic input)
Black (Blue) 0 V
ON
(with NPN output)
Black (Blue) 0 V
OFF
(with PNP output)
Gray (External-
diagnostic input)
OFF
(with NPN output)
NOTE: IEC colors are shown in parentheses.
Dust
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