Pepperl+Fuchs SU18 Series User manual

Photoelectric Sensors
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Subject to modifications without notice Copyright Pepperl+Fuchs
Photoelectric SU18 Series Fiber Optic
SU18 Series
Fiber Optic Sensors
•Pushbuttonteachor
potentiometeradjustablemodels
•Threeselectabledetectionmodes
•Selectabletimerfunction
•Weaksignaloutputwithself-
diagnosticoperation
•Availableremoteteach
Fiber Optic Diffuse and
Thru-Beam Mode
See page 2
Features:
• Cross-talkprotectioninhighresolutionmode
• Lighton/darkonselectable
Sensing Range: Determined by fiber optic cable
Output: 4-in-1
See pages 2-6 for SU18 Series specifications, wiring and dimensions.
4outputoptionsfrom1sensor:
NPNnormallyopen,NPNnormallyclosed,
PNPnormallyopen,orPNPnormallyclosed

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Subject to modifications without notice Copyright Pepperl+Fuchs
Photoelectric SU18 Series Fiber Optic
Specifications
SENSING RANGE Determined by cable* Determined by cable* Determined by cable* Determined by cable*
SENSITIVITY ADJUSTMENT Yes (Potentiometer) Yes (Potentiometer) Yes (Pushbutton) Yes (Pushbutton)
MODEL NUMBER(S)
SU18-16/40a/110/115/126a SU18-16/40a/110/115a/126a SU18-40a/110/115/123 SU18-40a/110/115a/123
OUTPUT /110 4-in-1* 4-in-1* 4-in-1* 4-in-1*
LOAD CURRENT 100 mA max. 100 mA max. 100 mA max. 100 mA max.
VOLTAGE DROP ≤2.0 VDC ≤2.0 VDC ≤2.0 VDC ≤2.0 VDC
SHORT CIRCUIT AND
OVERLOAD PROTECTION Yes Yes Yes Yes
REVERSE POLARITY
PROTECTION Yes Yes Yes Yes
SUPPLY VOLTAGE 10-30 VDC 10-30 VDC 10-30 VDC 10-30 VDC
VOLTAGE RIPPLE 10% 10% 10% 10%
LED(s) Yes (2) Yes (2) Yes (2) Yes (2)
CURRENT CONSUMPTION ≤30 mA ≤30 mA ≤30 mA ≤30 mA
OPERATING MODE Light on/dark on Light on/dark on Light on/dark on Light on/dark on
RESPONSE TIME
(by Sensing Type)
High Resolution 2 ms 2 ms 2 ms 2 ms
Standard 160 µs 160 µs 160 µs 160 µs
High Speed 80 µs 80 µs 80 µs 80 µs
READINESS DELAY
≤300 ms ≤300 ms ≤300 ms ≤300 ms
TIMER FUNCTION
40 ms On/Off Delay 40 ms On/Off Delay 40 ms On/Off Delay 40 ms On/Off Delay
SWITCHING
FREQUENCY
(by Sensing Type)
High Resolution 500 Hz 500 Hz 500 Hz 500 Hz
Standard 3 kHz 3 kHz 3 kHz 3 kHz
High Speed 6 kHz 6 kHz 6 kHz 6 kHz
STANDARDS EN 60947-5-2 EN 60947-5-2 EN 60947-5-2 EN 60947-5-2
PROTECTION (IEC) IP50 IP50 IP50 IP50
LIGHT SOURCE Visible Red LED 660 nm Visible Red LED 660 nm Visible Red LED 660 nm Visible Red LED 660 nm
AMBIENT LIGHT RESISTANCE ≤10,000 lux (sunlight)
≤5,000 lux (incandescent)
≤10,000 lux (sunlight)
≤5,000 lux (incandescent)
≤10,000 lux (sunlight)
≤5,000 lux (incandescent)
≤10,000 lux (sunlight)
≤5,000 lux (incandescent)
TEMPERATURE
RANGE
WORKING +14 ºF to +131 ºF +14 ºF to +131 ºF +14 ºF to +131 ºF +14 ºF to +131 ºF
STORAGE -4 ºF to +158 ºF -4 ºF to +158 ºF -4 ºF to +158 ºF -4 ºF to +158 ºF
HOUSING MATERIAL PC PC PC PC
WEIGHT 1.6 oz 0.9 oz 1.6 oz 0.9 oz
APPROVALS
ELECTRICAL CONNECTION
2-meter cable,
PVC covered
4-conductor, #26 AWG
200 mm pigtail,
PVC covered, quick
disconnect type V31
2-meter cable,
PVC covered
4-conductor, #26 AWG
200 mm pigtail,
PVC covered, quick
disconnect type V31
ADDITIONAL DATA See pages 3-6
*NPN normally open, NPN normally closed, PNP normally open, or PNP normally closed
Fiber Optic Diffuse and Thru-Beam Mode
Stockeditem
Typicaldelivery4weeksorless
Consult factory for all other models
*See pages 761-796 for
fiber optic lengths and
specifications.

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Subject to modifications without notice Copyright Pepperl+Fuchs
Photoelectric SU18 Series Fiber Optic
Wiring Diagrams
DC
Cable Connection
Note: Wiringdiagramsshowquick 
disconnect pin numbers.
Quick Disconnect
V31Type
WeakSignalOuput:Output is offforweaksignal
Brown
White
Blue
(+)
( – )
Black
Load
/110/126a
LightOn/DarkOn
PNP Output
Weak
Signal
WeakSignalOuput:Outputisonforweaksignal
Brown
White
Blue
(+)
( – )
Black
/110/126a
LightOn/DarkOn
NPN Output
Weak
Signal Load
Brown
White Remote Teach
Blue
(+)
( – )
Black
Load
/110/123
LightOn/DarkOn
PNP Output
Brown
Blue
(+)
( – )
Black
/110/123
LightOn/DarkOn
NPN Output
White Remote Teach
Load
WeakSignalOuput:Output is offforweaksignal
1 Brown
2 White
3 Blue
(+)
( – )
4 Black
Load
/110/126a
LightOn/DarkOn
PNP Output
Weak
Signal
WeakSignalOuput:Outputisonforweaksignal
1 Brown
2 White
3 Blue
(+)
( – )
4 Black
/110/126a
LightOn/DarkOn
NPN Output
Weak
Signal
Male Receptacle End View
Load
1 Brown
2 White
3 Blue
(+)
( – )
4 Black
Load
/110/123
LightOn/DarkOn
PNP Output
Remote Teach
1 Brown
3 Blue
(+)
( – )
/110/123
LightOn/DarkOn
NPN Output
4 Black
2 White Remote Teach
Remote
Teach
Remote
Teach
Load
1
24
3
(+)
( – )
Blue
Black
Brown
White Load
Weak
Signal
1
24
3
(+)
( – )
Blue
Black
Brown
White
Load
1
24
3
(+)
( – )
Blue
Black
Brown
White
Load
Weak
Signal
1
24
3
(+)
( – )
Blue
Black
Brown
White
Load
Mounting Instructions
ToremovetheSU18fromtheDINmountingtrack,rmlypushtheamplierforwarduntilthelockingtabreleases.
1. 
Makingsurethelockingtabis
inthe"out"position,latchthe
amplifier unit onto DIN rail.
2. Hold the amplifier in
position and press
lockingtabtothe"in"
position as shown.
The35mmDINmountingtrackprovidesaneasymethodformounting
theSU18Series.Thetrackisavailablein1-metersections.

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Subject to modifications without notice Copyright Pepperl+Fuchs
Photoelectric SU18 Series Fiber Optic
TeachProcedure
(Forpush-buttonteachmodelsonly)
DynamicTeachinHighResolutionmode:
1. Place target in front of fiber
2. Press and hold the teach button for
> 2 seconds to enter Teach mode.
BothLEDswillblinksimultaneously
fastfollowedbybothLEDsblinking
simultaneously slow.
3. Remove the target or move the target further away from
the fiber.
4. Press and hold the Teach button for < 2 seconds to end
teachmode.BothLEDswillblinksimultaneouslyfast
andthenalternateblinkingtosignalendofteachmode.
DynamicTeachinNormalmode:
1. Press and hold the teach button for > 2 seconds to enter
Teachmode.BothLEDswillblinksimultaneouslyfast
followedbybothLEDsblinkingsimultaneouslyslow.
2. Pass a moving target in front of the fiber.
3. Press and hold the Teach button for < 2 seconds to end
teachmode.BothLEDswillalternateblinkingtosignal
end of teach mode.
MaximumTeach:
1. Remove target from in front of fiber
2. Press and hold the teach button for
> 2 seconds to enter Teach mode.
BothLEDswillblinksimultaneously
fastfollowedbybothLEDsblinking
simultaneously slow.
3. Press and hold the Teach button for > 2 seconds to end
teachmode.BothLEDswillblinksimultaneouslyfast
andthenalternateblinkingtosignalendofteachmode.
PositionTeach:
1. Place target in front of fiber
2. Press and hold the teach button for
> 2 seconds to enter Teach mode.
BothLEDswillblinksimultaneously
fastfollowedbybothLEDsblinking
simultaneously slow.
3. Press and hold the Teach button for > 2 seconds to end
teachmode.BothLEDswillblinksimultaneouslyfast
andthenalternateblinkingtosignalendofteachmode.
Programming
Attaching Fiber Optic Cables to SU18 Series
1.Unlocktheleveronthetopoftheamplier.Theleverwill
spring open.
2. Insert a standard 2.2 mm diameter fiber optic cable into
the housing until the cable goes no farther. For 1 mm
diametercables,insertberendsintotheadapterand
then slide the adapter into the sensor until it stops.
3.Turntheleversothatitlocks.Iftheleverisnotlocked,
the spring will push it open.
Lever
Fiber
StandardFiber (ø2.2 mm diameter)
SlimFiber (ø1 mm diameter)

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Subject to modifications without notice Copyright Pepperl+Fuchs
Photoelectric SU18 Series Fiber Optic
Self-Diagnostic definition and operation:
5 sec. rule for light-ON (LO) and dark-ON (DO) mode
Switching
threshold
Switching
threshold
Self diagnostic output
(same for LO and DO)
Normal output
(LO mode)
Normal output
(DO mode)
Self diagnostic output
(same for LO and DO)
Normal output
(LO mode)
Normal output
(DO mode)
8 cyc. rule for light-ON (LO) and dark-ON (DO) mode
8 consecutive unstable-dark transition
Stable light
Unstable light
Dark
Stable light
Unstable light
Dark
< 5 s
> 5 s
5 s
< 5 s
> 5 s
5 s
t
t
1 2 ... 8 9 x x 1
Programming
RemoteTeach
(Forpush-buttonteachmodelsonly)
RemoteTeachinNormalorHighSpeedmode:
1. Connect the remote teach wire (white) to V+ to activate
remoteteachmode.Onceinteachmode,bothLEDswill
blinksimultaneouslyfastfollowedbybothLEDsblinking
simultaneously slow.
2. Pass a moving target in front of the fiber.
3. Release or disconnect the remote teach wire (white) to
endteachmode.BothLEDsalternateblinkingtosignal
end of teach mode. Remote teach is complete.
RemoteTeachinHighResolutionmode:
1. Place a target in front of the fiber.
2. Connect the remote teach wire (white) to V+ to activate
remoteteachmode.Onceinteachmode,bothLEDswill
blinksimultaneouslyfastfollowedbybothLEDsblinking
simultaneously slow.
3. Remove the target or move the target further away from
the fiber.
4. Release or disconnect the remote teach wire (white) to
endteachmode.BothLEDsalternateblinkingtosignal
end of teach mode. Remote teach is complete.

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Subject to modifications without notice Copyright Pepperl+Fuchs
Photoelectric SU18 Series Fiber Optic
Dimensions(mm)
SU18 Series
Accessories
35mmDINMountingTrack
(sold in lengths of 1 m)
DINTrackEndBracketModelEW35
Seepages855-896
foradditional
accessories
Seepages761-796for
beropticlengthsand
specications.
55
35
9
8
Teach
H.Res
Norm
H.Spd
Off.D
T.Off
On.D
LO
DO
Tea c h
H.Res
Norm
H.Spd
Off.D
T.Off
On.D
LO
DO
Option 115
Option 115a