Safety Light CurtainSL-V series


Main Unit, General-purpose Type, 55 Optical Axes


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Detection capability

ø14 mm

Beam axis spacing/Lens diameter

10 mm/ø4 mm

Effective aperture angle

Max. ±2.5° (When operating distance is 3 m or more)

Working distance

0.1 m to 7.0 m

Response time (ms)





Light source

Infrared LED (850 nm)

Operation mode

Turns on when no interruptions are present in the detection zone (excluding when the muting function is used)

OSSD output


2 outputs each for PNP and NPN. Can be changed by using the connector cable.

Max. l oad current

500 mA*2

Residual vol tage (during ON)

Max. 2.5 V (with a cable length of 7 m )

Leakage current

Max. 100 μA*3

Max. capacitive load

2.2 μF (with a load resistance of 100 Ω)

Load wiring resistance

Max. 2.5 Ω*4

Non safety-rel atedoutput


Output with automatic PNP/NPN switching function, 50 mA max.

Interlock-reset-ready output

Alarm output

Clear/blocked output

State information output 1, 2

Muting lamp output

Incandescent lamp (24 VDC, 1 to 7 W) or LED lamp (load current: 10 to 300 mA)*5 can be connected


EDM input

Short-circuit current 10 mA

Wait input

Short-circuit current 2.5 mA

Reset input

Muting input 1, 2

Override input

Protection circuit

Reverse current protection, short-circuit protection for each output, surge protection for each output

Approved standards



IEC61496-1, EN61496-1, UL61496-1


EN55011 Class A, FCC Part15B Class A


IEC61496-1, EN61496-1, UL61496-1 (Type 4 ESPE)
IEC61496-2, UL61496-2, EN61496-2 (Type 4 AOPD)
IEC61508 (SIL3), EN61508 (SIL3), IEC62061 (SIL3), EN ISO13849-1: 2015 (Category 4, PLe)


Power voltage

24 VDC +10%, -20% (Ripple P-P 10% or less)

Current consumption (mA)

When the Centre indicator is ON





When the Centre indicator is OFF





Environmental resistance

Enclosure rating

IP65 (IEC60529)

Overvoltage category


Ambient temperature

-10 to +55°C (no freezing)

Ambient temperature for storage

-25 to +60℃ (No freezing)

Relative humidity

15 to 85% RH (No condensation)

Storage relative humidity

15 to 95% RH

Operating ambientluminance

Incandescent lamp: 5,000 lux max., Sunlight: 20,000 lux max.


10 to 55 Hz, 0.7 mm compound amplitude, 20 sweeps each in the X, Y and Z directions

Shock resistance

100 m/s2 (Approx. 10 G), 16 ms pulse in X, Y, Z directions, 1000 times each axis


Main unit case


Upper case/lower case

Zinc die-cast

Front cover

Polycarbonate, SUS304



450 g


465 g

*1 When connecting the SL-V units in series, the response time (ON to OFF) is the sum of theresponse times of al l the individual SL-V units, but the response time (OFF to ON) is the sameas that of a singl e SL-V unit.e.g. When connecting the SL-V32H (32 beam axes), SL-V24H (24 beam axes), andSL-V12L (12 beam axes) in series, the response time of each unit is 10.3 ms, 9.2 ms, and 7.6ms respectively, and the response time (ON to OFF) is 10.3 ms + 9.2 ms + 7.6 ms = 27.1 ms.
*2 When used under ambient temperature between 45 to 55°C (113.0 to 131.0°F) , the maximum should not exceed 300 mA.
*3 Applies to situations when power is either off or disconnected.
*4 The wiring resistance between the OSSD output and the connected equipment (excluding the resistance of the cabl e) must be 2.5 Ω or less to ensure operations. If using the NPN output with a cable
length of 15 m or longer, and the load current consumption is 200 mA or more, the wire resistance must be 1.0 Ω or less.
*5 When used under ambient temperature between 45 to 55°C (113.0 to 131.0°F) , use incandescent lamps (24 VDC, 1 to 3 W) or LED lamps (load current: 10 to 100 mA).
*6 The current consumption of the transmitter increases by 10 mA and decreases on the receiver by10 mA when the AUX output (red wire of the transmitter) and the EDM input (red wire of thereceiver) are short circuited if the fol lowing additional condition is met. (The total consumption ofboth transmitter and receiver is fixed.)• In the case where the PNP output type cabl e is used, the condition is that OSSD stays in the OFF state.• In the case where the NPN output type cable is used, the condition is that OSSD stays in the ON state.

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