QDE-825D BANNER ENGINEERING, QDE-825D Datasheet - Page 28

• Manufacturer Part Number: QDE-825D
• Description: Safety Light Curtain
• Manufacturer: BANNER ENGINEERING

Specifications of QDE-825D

• Light Curtain Type: Safety
• Accessory Type: Machine Interface Cable
• For Use With: EZ-Screen Safety Light Screen

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Whenever two or more EZ-SCREEN emitter and receiver pairs
are adjacent to one another, optical crosstalk may potentially
take place between systems. To minimize optical crosstalk,
alternate the positions of emitters and receivers, (see Figure
3-8a), or alternate Scan Codes.
When three or more sensor pairs are installed in the same plane
(as shown for two pairs in Figure 3-8), optical crosstalk may
occur between sensor pairs whose emitter and receiver lenses
are oriented in the same direction. In this situation, eliminate
optical crosstalk by mounting these sensor pairs exactly in line
with each other within one plane, or by adding a mechanical
barrier between the pairs.
To further aid in avoiding crosstalk, the sensors feature two
selectable Scan Codes. A receiver set to one Scan Code will not
“see” an emitter set to another code (see Section 4.2).
3.1.8 Installation of Multiple Systems
In situations where multiple systems are mounted closely
together, or where a secondary emitter is in view (within ±5°),
within range of an adjacent receiver; the adjacent systems must be
configured for different Scan Codes (i.e., one system set for Scan
Code 1 and the other for Scan Code 2).
If not, a receiver may synchronize to the signal from the wrong
emitter, reducing the safety function of the light screen.
This situation will be discovered by performing the trip test
(see Section 3.4.3).
Do not connect multiple pairs of sensors to one Interface
Module (e.g., IM-T-9A/-11A) or otherwise parallel OSSD outputs.
Connection of multiple OSSD safety outputs to a single device
can result in serious bodily injury or death, and is prohibited.
P/N 133487
P/N 112852 rev. F
Installation and Alignment
Overview
WARNING . . .
WARNING . . .
Scan Code
Multiple Pairs of Sensors
Figure 3-8. Installation of multiple pairs; alternate emitters and
Receiver 3
b. Two or three pairs stacked
Receiver 1
Emitter 3
Receiver 2
Receiver
Receiver
Emitter
(or alternate receiver/emitter positions)
Scan Code 2
Scan Code 1
Scan Code 2
Scan Code 2
receivers to avoid optical crosstalk.
Scan Code 1
Scan Code 2
Scan Code 2
Emitter 3
Emitter
Emitter 2
Receiver 3
Emitter 1
Scan Code 1
Receiver
Emitter
Emitter
Opaque
Shield
Banner Engineering Corp.
Banner Engineering Corp.
www.bannerengineering.com • Tel: [phone]
www.bannerengineering.com • Tel: [phone]
Receiver
Emitter 2
Receiver
c. Two pairs at right angles
Emitter
Scan Code 2
Receiver 2
a. Two pairs
d. Multiple pairs
in a horizontal plane
Horizontal
Emitter
in a horizontal plane
Scan Code 1
Scan Code 1
Receiver 1
Instruction Manual
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Receiver
Minneapolis, U.S.A.
Minneapolis, U.S.A.
Emitter
EZ-SCREEN
Scan Code 1
Scan Code 2
Emitter 1
Horizontal
Receiver