Slim type 24 beam axes GL-S24SH

GL-S24SH - Slim type 24 beam axes

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)


CAD Data

360°view (3D PDF)

  • CE Marking
  • UL Listing(c/us)





Slim type

Detection capability

ø25 mm ø0.98"

Total length

499.5 mm 19.67"

No. of beam


Detection height

460mm 18.11"

Protection height

506mm 19.92"

Beam axis spacing

20 mm 0.79"

Operating distance

0.1 to 2 m 0.3' to 6.6'

Effective aperture angle

Max. ±3.75° (when the operating distance is 2 m 6.6')

Light source

Infrared LED (870 nm)

Response time(ms)

Wire synchronization, one-line, or optical synchronization system (channel 0)


7.0 *1


49.3 *1 *2

All blocked→ON

64.9 *1 *3

Optical synchronization system (channel A or B)


9.5 *1


53.0 *1 *2

All blocked→ON

74.7 *1 *3

OSSD operation

Turns on when no interruptions are present in the detection zone

Synchronization between the transmitter and receiver

Optical synchronization or wire synchronization
(determined by the wiring)

Light interference prevention function

Optical synchronization: prevented by Channel A and B with setting switch
Wire synchronization: prevented automatically

Control output (OSSD output)

Output type

2 transistor outputs
(PNP or NPN output is determined by the cable type.)

Max. load current

Max. 300 mA

Residual voltage (when ON)

Max. 2.5 V (with a cable length of 5 m 16.4')

OFF state voltage

Max. 2.0 V (with a cable length of 5 m 16.4')

Leakage current

Max. 200 µA

Max. load capacitance

2.2 µF

Load wiring resistance

Max. 2.5 Ω

Inputs 1 and 2

Short-circuit current: approx. 1 mA

Power supply

Current consumption(mA)

When the center indicator is ON





When the center indicator is OFF





Power voltage

24 VDC ±20%, ripple (P-P) 10% or less, Class 2

Protection circuit

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

Approved standards



IEC61496-1, EN61496-1, UL61496-1


EN55011 ClassA, FCC Part15B ClassA, ICES-003 ClassA


IEC61496-1, EN61496-1, UL61496-1 (Type 4 ESPE)
IEC61496-2, EN61496-2, UL61496-2 (Type 4 AOPD)
IEC61508, EN61508 (SIL3), IEC62061, EN62061 (SIL CL3)
EN ISO13849-1: 2015 (Category 4, PLe)
UL508, UL1998

Environmental resistance

Enclosure rating

IP65/IP67 (IEC60529)

Overvoltage category


Ambient light

Incandescent lamp: 3,000 lux or less, Sunlight: 20,000 lux or less

Operating ambient temperature

-10 to +50 °C 14 to 122 °F (No freezing)

Storage temperature

-25 to +60 °C -13 to 140 °F (No freezing)

Operating relative humidity

15 to 85 % RH (no condensation)

Storage relative humidity

15 to 95 % RH

Vibration resistance

10 to 55 Hz, Double amplitude 0.7 mm 0.03", 20 sweeps in each of the X, Y, and Z directions

Shock resistance

100 m/s2 (Approx. 10 G), 16 ms pulse, 1,000 times in each of the X, Y, and Z directions


Main unit case




185 g


190 g

*1 If the response time (ON to OFF) exceeds 18 ms, this unit cannot be used as a certified product based on the Chinese standard GB/T4584 “压力机用光电保护装置技术条件”.
In the case of series connection, if the total number of beam axes exceeds 100, the response time must be limited to 30 ms or less.
When the GL-S units are connected in series, the response time is calculated according to the following steps;
1. Sum up the response time of all unit.
2. Subtract the following time from the result of previous step.
(ON → OFF)
One sub unit connected: 2 ms
Two sub units connected: 4.2 ms
(When using Optical synchronization system and Channel A or B)
One sub unit connected: 2.7 ms
Two sub units connected: 5.7 ms
(OFF → ON)
One sub unit connected: 42 ms
Two sub units connected: 84 ms
*2 If the interruption is present in the detection zone for less than 80 ms, the response time (OFF to ON) will be 80 ms or more to ensure that the OSSD maintains the OFF state for more than 80 ms.
*3 “All blocked” means the situation where the GL-S operates in optical synchronization system and the transmitter and receiver is not synchronized (top and bottom beam axes are both blocked).
In this situation, the response time is longer because the GL-S synchronizes the transmitter and receiver first and then determines the clear or blocked.
*4 The control output (OSSD) current is not included. When inputs are turned ON, the current consumption increases by 1 mA per input.

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