sc06_557-560_fe-mls2b-series_longrange

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Photoelectric Sensor

557Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087-2245 www.am.pepperl-fuchs.com

Telephone (330) 486-0001 FAX (330) 405-4710 E-Mail: [email protected]

PEPPERL+FUCHS

P

hotoelectric

FEM

LS2BSeriesLong

Range

FE-MLS2B SeriesLong-RangeThru-Beam Sensors

2500 feet (762 meter) scan range

Cast aluminum housing

10 amp DPDT relay

See page 559-560 for FE-MLS2B Series additional information and dimensions.

Thru-Beam

Mode

See page 558

Sensing Range: 762m

Output: Relay


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Photoelectric Sensors



PEPPERL+FUCHS

Photo

electric

FE-MLS2BSeriesLong-Range

Thru-Beam Mode

Sensing CharacteristicsSpecifications

SENSING RANGE

SENSITIVITY ADJUSTMENT

MODEL TransmitterNUMBER(S)

Receiver

OUTPUT

ELECTRICALCONTACT RATING

SUPPLY VOLTAGE

LED(s)

POWER TransmitterCONSUMPTION

Receiver

MECHANICAL LIFE OF RELAY

OEPRATING MODE

RESPONSE TIME

SWITCHING FREQUENCY

PROTECTION (IEC)

LIGHT SOURCE

TEMPERATURE RANGE

HOUSING MATERIAL

LENS

APPROVALSGeneral Purpose

LISTED

General PurposeCERTIFIED

ELECTRICAL CONNECTION

ADDITIONAL DATA

762m

Yes

FE-MLS2EB-LR

FE-MLS2RB-LR

DPDT relay

115V/10A

105-130VAC

No

2.6VA

3.4VA

1X106

Light on/dark on

60ms

16Hz

IP67

Infrared LED

-40F to +158F

Diecast aluminum

Glass

Yes

Yes

Terminalhousing

See pages 559-560

2000100 200 300 4 00 600 1000 1 50050

xDistance X [m]

200

100

80

60

40

20

10

8

6

4

2.5

2

1.5

1

400

600

800

1000

Exce

ssGain

Excess Gain vs. Sensing Range FE-MLS2

MLS2B Excess GainTA = 25 deg. C

(in clean air)

Max. RecommendedRange

(in clearn air)

Typ.

Min.

0

304.8

-304.8

609.6

-609.6

914.4

-914.4

0 500300 900

x

y

Distance X [m]

Max. Recommendedrange (clean air)

OffsetY[mm]

FE-MLS2Movement Characteristics


3/4

Photoelectric Sensor



PEPPERL+FUCHS

P

hotoelectric

FEM

LS2BSeriesLong

Range

Thru-Beam Mode

Transmitter

1. Remove the rear housing, and connect AC powerthrough the 3/4-inch conduit opening to the line

terminals. (Check the nameplate on top of thetransmitter for correct line voltage.)

2. Apply power. (The indicator at the side of thetransmitter will light when the invisible infrared beam isbeing emitted.) Replace rear housing.

Receiver

1. Remove the rear housing. The relay and logic card (ifused) should also be removed.

2. Place the receiver in its intended location opposite thetransmitter.

3. Connect the load to the proper terminals.

4. Connect AC power to the line terminals. (Check

the nameplate on top of the receiver for correct linevoltage.)

5. Plug the relay in.

6. Set the mode selector switch to the UP, light operate(L.O.) position.

7. Turn the sensitivity adjustment fully clockwise(maximum sensitivity).

8. Apply power.

Alignment can now be accomplished in several ways:

9. a. Watch the indicator on the side of the receiver. Itlights to indicate alignment. For best alignment, centerthe receiver in the beam. Determine the beam center

by watching the indicator as you move the receiver up,down, left and right.

b. Use the earphone alignment aid. Remove the pipeplug in the side of the receiver. Plug the earphoneinto the exposed jack. As you move the receiver intoalignment, static gives way to a definite tone at theedge of the effective beam. The tone weakens as youapproach optimum alignment, then gets louder as younear the opposite edge of the effective beam. Midway(both horizontally and vertically) between the twoloudest tones is where the beam is strongest (thoughthe relay will energize anywhere with the effectivebeam.)

c. Use the earphone cord with a volt meter forprecision alignment. Remove the earphone plug fromcontrol housing and insert the earphone. Position thetransmitter and receiver units until the loudest tone isheard.

If more precise alignment is required, remove the backcover from the controls housing. Connect AC voltmeterclip leads to the ear jack terminals inside the housing.Correct polarity is not required. Set the voltmeter to the 15volt scale. As the receiver is moved into alignment with theedges of the effective beam (see figure below), a highervoltage level will be noted on the voltmeter. Centering thereceiver both horizontally and vertically, midway betweenthe highest readings, gives the maximum strength signal atthe receiver.

Remove earphone jacks. Apply PST type or equivalent pipesealant to earphone plug. Install earphone plug and tightento 20 in/lb. torque. Reinstall rear housing cover.

10. Tighten the mounting bolts on both transmitter andreceiver.

11. Block the beam with the object to be detected. (Whenthe beam is blocked, the receiver indicator will beOFF.)

12. To energize the relay when the beam is blocked dark

operation (D.O.) set the selector switch to the DOWNposition.

If you are using a plug-in logic circuit card:

13. Be sure the selector switch is in the DOWN, darkoperate, position.

14. Insert logic card. The sensitivity adjustment on thecard MUST be fully clockwise.

15. Select light or dark operation with the selector switchon the card.

Dark to operate relay - OUT positionLight to operate relay - IN position

16. Set the time adjustments, if any, on the card. Turnthe adjustments clockwise to increase the time delayinterval, or pulse.

Replace the rear housing: tighten screws to maintainwatertight, dust-tight sealing.

Effective

Beam

Diameter

Loud Tone

or

High Voltage

Reading

Weak Signal

(or Narrow Beam)

Strong Signal

Effective

Beam

Diameter


4/4

Photoelectric Sensors



PEPPERL+FUCHS

Photo

electric

FE-MLS2BSeriesLong-Range

Dimensions (mm)

FE-MLS2

Thru-Beam Mode

Transformer

ChassisGroundScrew

TRANSMITTER RECIEVER

ChassisGroundScrew

RelaySocket

Alignment

EarphoneJack

Transformer

Logic CardConnector

OperatingMode

Selectorswitch

SensitivityAdjustment(factory pre-adjusted fornormal scanning 2500 ft.)

203.2

25.7

88.9

44.4101.6

9.7

91.9

112.3

15.7

(2)1/420 UNC

38.1

7.1

107.99.7

127.0

25.4

25.4

3/4-14 NPT

See pages 885-892for additionalaccessories

sc06_557-560_fe-mls2b-series_longrange

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