Omron E3Z Datasheet page 19

Nomenclature:
Through-beam
E3Z-T## Receiver
E3Z-T##A Receiver
Retroreflective Models
E3Z-R##
E3Z-B##
Stability indicator
(green)
Operation selector
Distance-setting
E3Z-LS##
Set distance adjuster
(5-turn endless
adjustment)
Stability indicator
(green)
BGS / FGS Application for distance setting E3Z-LS
Simple Detection of Glossy, Uneven Objects
BGS
(Background Suppression)
Objects beyond the set distan-
ce, such as the conveyor, will
not be detected. The hystere-
sis is 10% or less, so at a set
distance of 40 mm, steps with
a thickness of 4 mm can be de-
tected on objects.
OFF (interrupted)
Selectable by Changing Cable Connection
FGS
(Foreground Suppression)
Glossy, uneven objects are re-
liably detected because the
OFF (incident) status occurs
only when the conveyor is de-
ON (interrupted)
tected, and ON (interrupted)
status occurs only when an ob-
ject exists or when reflected
light is not returned to the Sen- (incident)
sor. (Depending on the shape
of the object, an OFF-delay
ON (interrupted)
timer may be required.)
E3Z
Diffuse-reflective
E3Z-D##
E3Z-L##
Operation indicator
(orange)
Sensitivity adjuster
Operation indicator
(orange)
Operation selector
(for Light-ON setting)
ON (incident)
Distance threshold
Conveyor (background)
(for Dark-ON setting)
Distance threshold
OFF
Light level threshold
Conveyor (background) (fixed)
Operation
Slit for through-beam model (Optional accessory:
E39-S65A/B/C/D/E/F)
Slit
Mounting method
1. Hook the upper protruding
portions of the Slit to the up-
per indented mounting por-
tion of the Sensor and
adjust the position of the
Slit so that the Slit will be
parallel to the lens surface.
2. Press the lower protruding
portion of the Slit onto the
indented mounting portion
of the Sensor until the Slit
snaps in.
Mounting condition
Demounting method
1. Press the upper portion of
the Slit.
2. Disconnect the lower pro-
truding portion of the Slit
from the Sensor and re-
move the Slit.
Distance threshold
(settable)
Unstable NEAR
Stable NEAR
NEAR region
BGS
ON
Stability
(green)
OFF
L/ON
ON
Operation
(orange)
OFF
ON
Stability
(green)
OFF
D/ON
ON
Operation
(orange)
OFF
FGS
ON
Stability
(green)
OFF
L/ON
ON
Operation
(orange)
OFF
ON
Stability
(green)
OFF
D/ON
ON
Operation
(orange)
OFF
(Slit) (Sensor)
Upper indented
Hook
mounting portion
Protruding
portion
Lower mounting Sensor
dent portion
(1)
(2)
Side view Front view
(1)
(2)
Incident light level threshold
(not settable)
Not sufficient incident Slightly insufficient
light margin incident light
Unstable FAR
Very insufficient
Stable FAR incident light
FAR region VERY FAR region
(for FGS only)
A-61