Germany: +49 621 776 4411Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
USA: +1 330 486 0001 Singapore: +65 6779 9091
www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com fa-info@sg.pepperl-fuchs.com
fa-info@de.pepperl-fuchs.com
1
Retroreflective area sensor
RLG28-55/40a/115b/136
Release date: 2015-02-18 11:23 Date of issue: 2015-02-18 217956_eng.xml
Dimensions
Electrical connection
Pinout
Indicators/operating means
T
DL
10
5.2 -0.2
60
11 6
62
25.8
54.4
14.8
ø 5.2 -0.2
88
9.8
ø 6.5
8
12
10.5
905.5
14
Option:
2
1
3
4
+UB
Q1
0 V
Q2
= Light on
= Dark on
1
3
4
2
1 Operating display green
2 Signal display yellow
3 TEACH-IN button
4 Light/dark switch
5 Emitter
6 Receiver
1235
6
2
4
DL T
Model Number
RLG28-55/40a/115b/136
Retroreflective area sensor
with 300 mm fixed cable and 4-pin, M12 x 1
connector
Features
• Retro-reflective area sensor with 6
light beams in standard photoelectric-
sensor enclosure
• Connection compatibly replaces sing-
le beam photoelectric sensor
• Reliable detection of the front edge of
the object irrespective of its shape
and position
• Constant object detection from
12 mm within the entire detection area
• Reliable detection of all surfaces irres-
pective of the object texture
• Switches when contrast difference
10%
• Bright, highly visible transmitter be-
ams, guarantee convenient alignment
of the sensor
Product information
The RLG28 retro-reflective area sensor con-
tains several transmitters and receivers in one
housing and with a reflector positioned oppo-
site forms a 60 mm detection area over a sen-
sing range of 4 m.
When the light beams are interrupted by an
object, the switching function is triggered.
The smallest detectable object size is 12 mm.
The RLG28 switches at a 10% contrast diffe-
rence with a response time of 1 ms. An intelli-
gent gain control compensates for effects
such as dirt, misalignment, and temperature.
Germany: +49 621 776 4411Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
USA: +1 330 486 0001 Singapore: +65 6779 9091
www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com fa-info@sg.pepperl-fuchs.com
fa-info@de.pepperl-fuchs.com
Retroreflective area sensor
RLG28-55/40a/115b/136
2
Release date: 2015-02-18 11:23 Date of issue: 2015-02-18 217956_eng.xml
Mounting:
Ensure that the red light transmitted by the sensor fully illuminates the reflector.
To ensure optimal detection, the entire 60 mm detection field must appear on the reflector.
Technical data
General specifications
Effective detection range 0 ... 4 m
Reflector distance H60 reflector: 0.4 ... 4 m , H85-2 reflector: 0.2 ... 4 m , Foil reflec-
tor OFR-100/100: 0.4 ... 3 m
Threshold detection range 5.6 m
Sensing range typical 60 mm , Object has to cover the refelector completely in
one dimension
Reference target H60 reflector , H85-2 reflector , Foil reflector OFR-100/100
Light source LED
Light type modulated visible red light , 625 nm
Polarization filter yes
Number of beams 6
Diameter of the light spot approx. 220 mm at detection range 4 m
Angle of divergence +/- 2.5 °
Ambient light limit 5000 Lux
Resolution 12 mm
Functional safety related parameters
MTTFd 310 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 0 %
Indicators/operating means
Operation indicator LED green, statically lit Power on
Undervoltage indicator: Green LED, pulsing (approx. 0.8 Hz)
short-circuit : LED green flashing (approx. 4 Hz)
Function indicator 2 LEDs yellow, light up when light beam is free, flash when falling
short of the stability control, off when light beam is interrupted
Teach-In : LED yellow/green; equiphase flashing; 2,5 Hz
Changeover signal tracking: LED yellow, 1 Hz flashing / 2x flas-
hing
Control elements rotary switch for light/dark , Teach-In key
Electrical specifications
Operating voltage UB12 ... 30 V DC
Power from Class 2 Power Source
Ripple max. 10 %
No-load supply current I0max. 50 mA
Output
Switching type light/dark on, switchable
Signal output 2 push-pull (4 in 1) outputs, complementary, short-circuit proof,
reverse polarity protected
Switching voltage max. 30 V DC
Switching current max. 100 mA
Voltage drop Ud≤ 2.5 V DC
Switching frequency f 230 Hz
Response time 1 ms
Ambient conditions
Ambient temperature -30 ... 60 °C (-22 ... 140 °F)
-10 ... 40 °C (14 ... 104 °F) for inactive signal tracking
Storage temperature -40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Degree of protection IP67
Connection 300 mm fixed cable with M12 x 1, 4-pin connector
Material
Housing Plastic ABS
Optical face Plastic pane
Mass 100 g
Compliance with standards and directi-
ves
Directive conformity
EMC Directive 2004/108/EC EN 60947-5-2:2007
Approvals and certificates
Protection class II, rated voltage ≤ 250 V AC with pollution degree 1-2 accor-
ding to IEC 60664-1 , functional insulation acc. to DIN EN
50178
UL approval cULus Listed, Class 2 Power Source
CCC approval CCC approval / marking not required for products rated ≤36 V
Notes
Additional accessories can be found in the
Internet.
Accessories
OMH-05
Mounting aid for round steel ø 12 mm or
sheet 1.5 mm ... 3 mm
OMH-07
Mounting aid for round steel ø 12 mm or
sheet 1.5 mm ... 3 mm
OMH-21
Mounting bracket
OMH-RLK29-HW
Mounting bracket for rear wall mounting
OMH-K01
dove tail mounting clamp
REF-H60
Reflector, rectangular 40.5 mm x 60 mm,
mounting holes
REF-H85-2
Reflector, rectangular 84.5 mm x
84.5 mm, mounting holes
V1-G-2M-PVC
Female cordset, M12, 4-pin, PVC cable
V1-G-2M-PUR
Female cordset, M12, 4-pin, PUR cable
V1-W-2M-PUR
Female cordset, M12, 4-pin, PUR cable
Germany: +49 621 776 4411Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
USA: +1 330 486 0001 Singapore: +65 6779 9091
www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com fa-info@sg.pepperl-fuchs.com
fa-info@de.pepperl-fuchs.com
Retroreflective area sensor
RLG28-55/40a/115b/136
3
Release date: 2015-02-18 11:23 Date of issue: 2015-02-18 217956_eng.xml
To check this illumination, look at the reflector from over the top of the sensor housing.
Teach-in:
More stringent adjustment requirements: Ensure that the device is correctly aligned in the near range of 0.2 m ... 0.6 m.
Object detection after successful Teach-in
The target should be large enough so that the reflector is always completely covered in one dimension!
Signal tracking:
Active:
• At variable temperature
• Objects located in the light path that lie below the switching point. These objects result in a readjustment of the emitter. This allows these
objects to be taught in or taught out.
Inactive:
• Function not available
To alter the signal tracking, press the Teach-in button for >10 seconds. The current status is displayed. Briefly pressing the Teach-in button chan-
ges the mode.
correct incorrect
optimal not optimal
object = resolution object > resolution
Press the
Teach-In button > 2s
Teach-in process
Alignment mode
Previous teach
values and normal
operation adopted after
1 min without changes
Normal operation
faulty successful
LED green
2.5 Hz flashing - Alignment mode is active
Signal status (LED yellow):
Off - Strength of reflected light inadequate
flashes slowly - Strength of reflected light weak
flashes quickly - Strength of reflected light improving
lit permanently
(not flashing) - Strength of reflected light good
Press the
Teach-In button > 2s
Normal operation
yellow LED illuminates
Press the Teach-in
button > 10 seconds
Signal tracking switch mode
Reverts back to
normal mode after
5 seconds if
no changes are made
Press the Teach-in
button Mode is changed
Yellow LED 1 Hz
Flashes once Tracking on
Flashes twice Tracking off
