E3S-AD81 Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

производитель

E3S-AD81

General-Purpose Photoelectric Sensor

Unspecified 

E3S-A

E3S-A

Self-Diagnostic Function

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.

Amount of

Incident light Indicator Green Indicator

incident light indicator (red)

Self-

diagnostic

function

Self-diagnostic example

1.2 or more

1.0 to 1.2

With light

incident (red

indicator: ON)

Stable operating —

—

state with incident

Green Red light: Stable

operation is

expected in the

rated temperature

range with the

green indicator

ON.

Green Red

Conditional

The self-

operating state diagnostic

with incident light: alarm output

Stable operation is alerts the

expected if the user to this

temperature

state if it

fluctuation is within continues for

±10% of the

0.3 s.

primary

temperature.

The optical axis misaligned by vibration.

Light decreased by dust.

Dust

0.8 to 1.0

Without light

incident (red

indicator: OFF) Green Red

With light leakage (through-beam and retroreflective

sensors)

Sensing object

0.8 or less

Green Red

Stable operating —

state with no

incident light:

Stable operation is

expected in the

rated temperature

range with the

green indicator

ON.

s 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-ATu or the

E3S-ARu with the NPN output feature. For the E3S-ARu with

the PNP output feature, short-circuit the gray (pink) and the red

(brown) cords.

NOTE: IEC colors are shown in parentheses.

16

Light reflected from the floor or the background (diffuse

reflective sensors)

Sensing

object

With the influence of

external noise

Noise

—

Light emission

No emission

Red (Brown) + V

OFF

(with PNP output)

Gray (External-

diagnostic input)

OFF

(with NPN output)

Black (Blue) 0 V

Red (Brown) + V

ON

(with PNP output)

Gray (Pink)

(External-

diagnostic input)

ON

(with NPN output)

Black (Blue) 0 V

Share Link: