EZ-SCREEN Systems—ESD-Safe

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Guarding in ESD-Sensitive Environment

Overview

  • Available in 14 mm resolution for finger, hand and ankle protection or 30 mm resolution for hand and ankle protection
  • Made from nickel-plated static-dissipating materials
  • Operates in ranges from 0.1 m to 6 m (14 mm models) and 0.1 m to 18 m (30 mm models)
  • Offers optional reduced resolution (former fixed blanking) to ignore tooling or constant inflow of materials
  • Displays operating status, configuration and error codes
  • Includes blocked beam zone indicators
  • Features user configurable trip or latch outputs and Scan Code 1 or 2
  • Resists impact, twisting and abusive environments with a durable aluminum housing and metal end caps
  • Offers optional cascading to create a multi-light-screen-system that responds to a single stop command

Product Specifications

Supply Voltage at the Device24V dc ±15% (SELV), ±10% max. ripple

(The external voltage supply must be capable of buffering brief mains interruptions of 20 milliseconds, as specified in IEC/EN 60204-1).
Supply CurrentEmitter:100 mA max.
Receiver:275 mA max., exclusive of OSSD1 and OSSD2 loads (up to an additional 0.5 A each)
Resolution† and Operating Range (†No blanking enabled)14 mm resolution models:0.1 to 6 m
30 mm resolution models:0.1 to 18 m
Range decreases with use of mirrors and/or lens shields:
Lens shields:approximatel 10% of range per shield
Glass surface mirrors:approximately 8% less range per mirror
Response TimeDependent on number of sensing beams 10 beams:9 milliseconds
20 beams:11 milliseconds
30 beams:13 milliseconds
40 beams:15 milliseconds
50 beams:17 milliseconds
60 beams:19 milliseconds
70 beams:21 milliseconds
80 beams:23 milliseconds
90 beams:25 milliseconds
100 beams:27 milliseconds
110 beams:30 milliseconds
120 beams:32 milliseconds
140 beams:36 milliseconds
160 beams:40 milliseconds
180 beams:43 milliseconds
200 beams:48 milliseconds
220 beams:52 milliseconds
240 beams:56 milliseconds
CSSI Response Time (SLSC.. cascade models only)Response time for a cascade receiver due to opening contacts at the cascade interface (CSSI) is 40 milliseconds max. (contacts must open for 60 milliseconds min.).
Remote Test Input (Optional - available only SLSE..-..Q5 emitters)Test Mode is activated either by applying a low signal (less than 3V dc) to emitter TEST #1 terminal for a minimum of 50 milliseconds, or by opening a switch connected between TEST #1 and TEST #2 for a minimum of 50 milliseconds. Beam scanning stops to simulate a blocked condition. A high signal at TEST #1 deactivates Test Mode. (See p/n 112852 for more information.)
High signal:10 to 30V dc
Low signal:0 to 3V dc
Input current:35 mA inrush, 10 mA max.
Wavelength of Emitter ElementsInfrared LEDs, 950 nm at peak emission
EDM Input+24V dc signals from external device contacts can be monitored (one-channel, two-channel or no monitoring) using EDM1 and EDM2 terminals in the receiver. Monitored devices must respond within 200 milliseconds of an output change.
High signal:10 to 30V dc @ 30 mA typical
Low signal:0 to 3V dc
Dropout time:200 milliseconds max.
Reset InputThe Reset input must be high for 0.25 to 2 seconds and then low to reset the receiver.
High signal:10 to 30V dc @ 30 mA typical
Low signal:0 to 3V dc
Closed switch time:0 .25 to 2 seconds
Safety OutputsTwo redundant solid-state 24V dc, 0.5 A max. sourcing OSSD (Output Signal Switching Device) safety outputs.

(Use optional interface modules for ac or larger dc loads.)

Capable of the Banner “Safety Handshake”.
ON-state voltage:greater than or equal to Vin-1.5V dc
OFF-state voltage:1.2V dc max. (0-1.2V dc)
Max. load capacitance:1.0 µF
Max. load inductance:10 H
Leakage current:0.50 mA max.
Cable resistance:10 ohms max.
OSSD test pulse width:100 to 300 microseconds
OSSD test pulse period:5 to 27 milliseconds (varies with number of beams)
Switching current:0-0.5 A
Controls and AdjustmentsEmitter:
Scan Code selection:2-position switch (code 1 or 2). Factory default position is code 1.
Receiver:
Scan Code selection:2-position switch (code 1 or 2). Factory default position is code 1.
Trip/Latch Output selection:Redundant switches. Factory default position is T (Trip)
EDM/MPCE Monitor selection:2-position switch selects between 1- or 2-channel monitoring. Factory default position is 2.
Reduced Resolution (2-beam Floating Blanking):Redundant switches to enable. Factory default is OFF.
Short Circuit ProtectionAll inputs and outputs are protected from short circuits to +24V dc or dc common
Electrical Safety Class (IEC 61140: 1997)III
Safety RatingType 4 per IEC 61496-1, -2; Category 4 per ISO 13849-1 (EN 954-1)
Ambient Light ImmunityGreater than 10,000 lux @ 5° angle of incidence
Effective Aperture Angle (EAA)Meets Type 4 requirements per IEC 61496-2, ±2.5° @ 3 m
EnclosureMaterial:Extruded aluminum housing with yellow polyester powder finish standard and well-sealed, rugged die-cast zinc end caps, acrylic lens cover, copolyester access cover. End caps on silver models are also nickel-plated. ESD-safe models have static-dissipative acrylic lens cover.
Environmental RatingIEC IP65
Status IndicatorsEmitter:
One bicolor (Red/Green) status indicator:indicates operating mode, lockout or power OFF condition
7-segment Diagnostic indicator:indicates proper operation, scan code or error code
Receiver:
Yellow Reset indicator:indicates whether system is ready for operation or requires a reset
Bicolor (Red/Green) Status indicator:indicates general system and output status
Bicolor (Red/Green) Zone Status indicators:indicates condition (clear or blocked beam) of a defined group of beams
7-segment Diagnostic indicator:indicates proper operation, scan code or error code, total number of blocked beams
Mounting HardwareEmitter and receiver each are supplied with a pair of swivel end-mounting brackets. Models longer than 900 mm also include a swivel center-mount bracket. Mounting brackets are 8-gauge cold-rolled steel, black zinc finish.
Shock and VibrationEZ-SCREEN components have passed vibration and shock tests according to IEC 61496-1. This includes vibration (10 cycles) of 10-55 Hz at 0.35 mm single amplitude (0.70 mm peak-to-peak) and shock of 10 g for 16 milliseconds (6,000 cycles).
Operating ConditionsTemperature:0° to +55° C
Relative humidity:95% (non-condensing)

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