WECO-987 Series EN81-20 Elevator Light Curtain

WECO light curtain EN81-20 WECO-957

1.Performance Parameter

NO. Items Performance Parameter
1 Model

WECO-987A5, WECO-987B5,

WECO-987C5, WECO-987E5,

WECO-987K5, WECO-987L5,

WECO-987Q5, WECO-987T5

WECO-987A8, WECO-987B8,

WECO-987C8, WECO-987E8,

WECO-987K8, WECO-987L8,

WECO-987Q8, WECO-987T8

2 Infra red dioeds range 47.5mm
3 Minimum detecting objection ≤50mm (meet EN81-20 standard)
4 Number of Infra red diode 36 Pair Diodes 40 Pair Diodes
5 Scanning beams 106-174beams 118-194beams
6 The highest detecting range 1665mm  (meet EN81-20 standard) 1855mm  (meet EN81-20 standard)
7 The lowest detecting range 20mm   (meet EN81-20 standard)
8 Detecting range 0~4000mm
9 Response time ≤65ms ≤69ms
10 Recovery time ≤1.5s
11 Vertical tolerance ±15mm/7°
12 Horizontal tolerance ±3mm/5°
13 Output mode 1NO+1NC capacity 120VAC 1A
Malfunction: 1NC capacity 120VAC 1A
14 Protection level IP54
15 Light immunity >100,000LUX
16 EMC EN12015, EN12016

2.Beams Designing And Connection System
WECO elevator door detector

36Pairs: TX & RX distance less than 400 mm: 106beams; TX & RX distance more than 400 mm: 174beams.

40Pairs: TX & RX distance less than 400 mm: 118beams;TX & RX distance more than 400 mm: 194beams.

WECO-987 SERIES elevator door detector light curtains completely conform to EN 81-20 European standard.The details are:
1)The protective device shall cover the opening over the distance between at least 25mm and 1600mm above the car door sill;
2)The protective device shall be capable of detecting obstacles minimum of 50mm diameter;
3)The protective device may be rendered inoperative in the last 20mm of door closing;
4) In case of failure, or deactivation of the protective device, the kinetic energy of the doors shall be limited to 4J

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Principles and applications of the safety light curtain(2/2)

Beam density determines how much how much volume was only part of the body is detected by the light curtain. Ergonomically data should be less than the diameter of an adult's finger 14mm, palm thickness not less than 30mm, wrist diameter less than 40mm, for example: if the distance between the optical axis of the light curtain is using 40mm, axis diameter 20mm, its resolution is 40 + 20 = 60mm, then the hand value, palms, wrists and arms are likely through the light curtain will not be found. So, if you want to get higher security, they need to use higher resolution screens, security screens Albert curtain products applicable to the pipeline, elevators, paper machinery, leather machinery, woodworking machinery, mechanical presses, safety testing of hydraulic presses, Asian film machines, cutting machines, bending machines, injection molding machines, industrial robots, packaging equipment, parking, industrial automation equipment, restricted and dangerous areas, etc., can be reliably protected object security.

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