Specifications are subject to change without notice (06.03.2006)
1
Photoelectrics
Type EF 1801
Fiber Optic Sensor
Product Description
Used in through-beam, retro-
reflective or diffuse-reflective
applications depending upon
how the additional fibers are
mounted. Easily adjustable
sensitivity with 270 potentio-
meter. LED indication for out-
put ON. Short M18 metal
housing for heavy duty appli-
cations. The fiber allows posi-
tioning and mounting in tight
spaces with the photoelectric
sensor itself mounted in a
more convenient location.
Type
Housing diameter
Range
Output type
Housing material
Connection type
Ordering Key
Range: Fiber dependent, typ. 100 mm
Adjustable sensitivity
Modulated, red light
Rated operational voltage: 10 to 40 VDC
Output: DC 200 mA NPN or PNP
Make and break switching function, LED indication
Heavy duty M18 metal housing, IP 67
Cable and plug versions
For 2.2 mm fiber cable with 1 mm core
MB 18 A for DIN-rail mounting (see Accessories)
Type Selection
Housing
Rated
Ordering no.
Ordering no.
Ordering no.
Ordering no.
diameter
operating
NPN/cable
NPN/plug
PNP/cable
PNP/plug
dist. (S
n
)
Make & break swit.
Make & break swit.
Make & break swit.
Make & break swit.
M18
Fiber depend.
EF 1801 NPAS
EF 1801 NPAS-1
EF 1801 PPAS
EF 1801 PPAS-1
Specifications
Rated operating dist. (S
n
)
Fiber dependent
Temperature drift
0.4%/K
Hysteresis (H)
(Differential travel)
3 to 20%
Rated operational volt. (U
B
)
10 to 40 VDC
(ripple included)
Ripple (U
rpp
)
10%
Output current
Continuous (I
e
)
200 mA
Short-time (I)
200 mA,
max. load capacity 100 nF
No load supply current (I
O
)
20 mA,
Min. load current (I
m
)
0.5 mA
OFF-state current (I
r
)
100 A
Voltage drop (U
d
)
2.5 V
Protection
Reverse polarity,
short circuit, transients
Transient voltage
Max. 1 kV/0.5 J
Sensitivity
Adjustable, 270 turn
potentiometer,
Light source
660 nm
Light type
Red,
modulated, synchronized
Operating frequency (f)
120 Hz, light/dark ratio 1:2
Response time
OFF-ON (t
ON
)
3.2 ms
ON-OFF (t
OFF
)
5 ms
Power ON delay (t
V
)
Typ. 100 ms
Indication
Output ON
LED, yellow
Environment
Overvoltage category
III (IEC 60664/664A; 60947-1)
Pollution degree
3 (IEC 60664/664A; 60947-1)
Degree of protection
IP 67 (IEC 60529; 60947-1)
Temperature
Operating
-20 to +60C (-4 to 140F)
Storage
-30 to + 70C (-22 to 158F)
Vibration
10 to 150 Hz, 0.5 mm/7.5 g
(IEC 60068-2-6)
Shock
2 x 1 m & 100 x 0.5 m
(IEC 60068-2-32)
Dielectric voltage
500 VAC (rms)
Housing material
Body
Nickel-plated brass
Front
TPE/POM, black
Cable end
Polyester, black
Nuts
Nickel-plated brass
EF 18 01 PPA S - 1
2
Specifications are subject to change without notice (06.03.2006)
Tv
Tv
Operation Diagram
Object present, light received
Output ON: Make switching (NO) BK (4)
Break switching (NC) WH(2)
Power supply
Truth Table
Make switching
Break switching
Object present
No
Yes
No
Yes
DC types
LED
OFF
ON
OFF
ON
Load
Non-active Active
Active Non-active
Output NPN
High
Low
Low
High
Output PNP
Low
High
High
Low
Wiring Diagrams
Accessories
Fiber optics - call for further information
Connector type CON.1A../CON.14NF.. series
Please refer to "Accessories"
Specifications (cont.)
EF 1801
Dimensions
EF 1801 .PAS
EF 1801 .PAS-1
3 BU
2 WH
4 BK
1 BN
PPAS
NPAS
1 BN
2 WH
4 BK
3 BU
Delivery Contents
Photoelectric switch: EF 1801....
2 nuts
M18 mounting bracket MB 18A for direct surface or
DIN-rail mounting
Screw driver
Fiber cutter
Packaging: cardboard box
Connection
Cable
Grey, 2 m, oilproof PVC,
4 x 0.35 mm
2
Note: Other cable lengths
on request
Plug (-1)
M12
Cables for plug (-1)
CONH1A-. serie
Weight
Cable version
115 g
Plug version
40 g
CE-marking
Yes
Specifications are subject to change without notice (06.03.2006)
3
Installation Hints
TRANSMITTER
OR RECEIVER
FIBER
FIBER
ENTRY
1
2
2
FIBER
FIBER
ENTRY
TRANSMITTER
OR RECEIVER
When you insert the fibers:
Push the spring-loaded
clamp (1) with the enclosed
screw driver towards the
fiber entries (2). The fiber
entries are now open for
putting in the fibers.
Put in the fibers. Be sure
that the fibers pass the
constriction near the bot-
tom of the hole. The con-
striction seals the junction
(between fiber and photo
element) against dust.
The sensing distance will
be reduced if there is an
air gap between the fiber
and the photo element.
Release the clamp to fix the
fibers.
EF 1801
Installation Hints
Relief of cable strain
Protection of the sensing face
Switch mounted on mobile carrier
To avoid interference from inductive voltage/
current peaks, separate the prox. switch pow-
er cables from any other power cables, e.g.
motor, contactor or solenoid cables
Incorrect
Correct
The cable should not be pulled
A proximity switch should not serve as
mechanical stop
Any repetitive flexing of the
cable should be avoided
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