Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 5)

Introduction
Features
• An optoelectronic safeguarding device
• Creates a screen of synchronized, modulated infrared sensing beams. Choose from 10
sizes, in 150 mm (6") increments: defined areas from 150 mm to 1.8 m (6" to 71")
• Compact package for smaller production machines
• Models available with Trip or Latch output operation (automatic or manual start/restart)
• 30 mm (1.18") resolution
• Remote Test input terminals for simulating a "blocked" condition
• Operating range up to 15 m (50')
• Type 2 per IEC 61496-1/-2; Category 2 PLd per EN ISO 13849-1
• FMEA tested according to IEC 61496-1, Type 2 requirements
• Receiver LEDs provide system status and emitter/receiver alignment indications
• Highly immune to EMI, RFI, ambient light, weld flash, and strobe light
• Two-piece design
• Vibration-tolerant, factory burned-in emitter and receiver circuitry for toughness and de-
pendability
System Description
NOTE: A “System” as referred to in this manual may be defined as an emitter and its receiver, plus their ca-
bling.
Banner EZ-SCREEN Type 2 emitters and receivers provide a redundant, microprocessor-controlled, opposed-mode optoelectronic "cur-
tain of light," or "light screen." EZ-SCREEN Type 2 typically is used for point-of-operation safeguarding, and is suited to safeguard a
variety of lower-risk machinery.
The EZ-SCREEN Type 2 is a two-piece (“two-box”) system – comprising an emitter and a receiver, but no external controller. The exter-
nal device monitoring (EDM) function ensures the fault detection capability required by EN ISO 13849-1 Category 2.
The EZ-SCREEN Type 2 emitters have a row of synchronized modulated infrared (invisible) light-emitting diodes (LEDs) in a compact
metal housing. Receivers have a corresponding row of synchronized photodetectors. The light screen created by the emitter and receiver
is called the “defined area”; its width and height are determined by the length of the sensor pair and the distance between them. The low-
profile housing provides maximum sensing within minimum space; its defined area (sensing area) is equivalent to the height of the hous-
ing. The maximum range is 15 m (50'), which decreases if corner mirrors are used. Resolution is 30 mm (1.18")..
Both emitter and receiver feature LEDs to provide continuous indication of the System’s operating status, alignment and error conditions.
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