Pepperl Fuchs ULB-18GM50-255-2E1 Data Sheet
Label sensor ULB-18GM50-255-2E1
Technical data
General specifications
Sensing range 20 ... 60 mm , optimal distance: 45 mm
Transducer frequency 255 kHz
Indicators/operating means
LED green Display: readiness
LED yellow indication: label detected
LED red Display: error
Electrical specifications
Model Number
ULB-18GM50-255-2E1
Features
• Ultrasonic system for detection of
labels and carrier materials.
• Short version
• Insensitive to printing, colors, and
shining surfaces
• Automatic compensation of the
operating point with slowly
changing ambient condition
• Very high processing speeds are
possible.
Diagrams
Mounting/Adjustment
Suggestions:
a = 5 mm ... 15 mm
b > 10 mm
d = 40 mm ... 45 mm
β = 20˚ ... 40˚
Operating voltage U
No-load supply current I
Time delay before availability t
Input
Input type Teach-In input
Pulse length ≥ 500 ms
Impedance ≥ 10 kΩ
Output
Output type 2 switch outputs NPN, NC
Rated operating current I
Voltage drop U
Switch-on delay t
Switch-off delay t
Ambient conditions
Ambient temperature 0 ... 60 °C (32 ... 140 °F)
Storage temperature -40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Connection type cable PVC , 2 m
Core cross-section 0.14 mm
Degree of protection IP67
Material
Housing nickel plated brass; plastic components: PBT
Transducer epoxy resin/hollow glass sphere mixture; polyurethane foam
Mass 150 g
Compliance with standards and
directives
Standard conformity
Standards EN 60947-5-2:2007+A1:2012
Approvals and certificates
UL approval C-UL listed: 57M3, IND CONT. EQ., "Powered by Class 2
CCC approval CCC approval / marking not required for products rated ≤36 V
B
0
v
e
d
on
off
Dimensions
18 ... 30 V DC , ripple 10 %
< 60 mA
< 500 ms
0-level: -U
1-level: +U
2 x 100 mA , short-circuit/overload protected
≤ 3 V
≤ 600 µs
≤ 600 µs
IEC 60947-5-2:2007 + A1:2012
Power Source"
... -UB + 1V
B
- 1 V ... +U
B
2
SS
B
Evaluation unit with
receiver unit
b
β
a
Release date: 2017-09-25 08:45 Date of issue: 2017-09-25 193010_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
d
wires 70 mm with
wire end ferrules
l = 2 m
l = 0.5 m
ø 15
70
LEDs
500
4
24
M18 x 1
30
50
53
Emitter unit
24
M18 x 1
22
1
Label sensor ULB-18GM50-255-2E1
Electrical Connection
Standard symbol/Connection:
Label monitor
(BN)
(PK)
(WH)
(BK)
U
(GY)
(BU)
+U
B
TEACH IN
Output label
Output base material / air
n.c.
-U
B
Accessories
MH-UDB01
Mounting bracket for double sheet monitor
Operation in applications with increased ESD requirements
Using the included metal screw caps, the sensor can be used in applications with increased
ESD requirements up to 30 kV (ESD = electrostatic discharge). The metal coupling nuts are
screwed on the front of the transmitter and receiver. The installation of the transmitter and receiver must ensure a large area electrical connection to the machine earth.
Additional Information
Angular misalignment
< +/- 1°
α
Sensor offset
s < +/- 1 mm
α
s
Description of sensor functions
The ultrasonic double sheet monitor for label detection can be used in all applications,
where an automatic detection of labels is required, to automatise labelling of goods. Even
transparent or metalised labels can be detected without problem. The double-sheet monitor is based on the ultrasonic through-beam principle. The following can be detected:
- No base material, i.e. air,
- Labels
A microprocessor system evaluates the signals. The appropriate switch outputs are set
as a result of the evaluation. Changes in ambient conditions such as temperature and
humidity are compensated for automatically. The interface electronics is integrated into
a compact M18 metal housing together with a sensor head.
Electrical connection
The sensor is equipped with 6 connecting wires. The functionality of the connections is
described in the following table. The teach input (PK) is used to teach the sensor.
Colour Switching on Comments
BN +U
B
WH Switch output for labels Pulse width corresponds to the event
BK Switch output for base mate-
Pulse width corresponds to the event
rial / air
GY not connected
PK -U
/ n.c. / +U
B
B
Normal operation / TEACH-IN
BU -UB
Normal mode
The sensor is working in normal mode if the function input (PK) is applied to -UB or not
connected.
Displays:
LED yellow: Detection of labels
LED green: Power on
LED red: Error
Switch outputs:
The switch outputs are only active in normal operation!
White: WH Label output
Black: BK Base material / air output
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
2
Release date: 2017-09-25 08:45 Date of issue: 2017-09-25 193010_eng.xml
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