System installation, 7 avoiding electrical and optical noise, 8 multiple-system applications – Banner EZ-SCREEN Safety Light Curtain Systems User Manual
Page 26
24
P/N 68413 rev. A
Banner Engineering Corp.
•
Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN Point
Instruction Manual
System Installation
3.3.7 Avoiding Electrical and Optical Noise
The EZ-SCREEN System is designed and manufactured to be
highly resistant to electrical and optical noise and to operate
reliably in industrial settings. However, extreme electrical and/or
optical noise may cause a random trip or latch condition . In
very extreme electrical noise cases, a lockout is possible. Care
should be taken to avoid sources of interference when planning
the mounting location .
When planning the installation, the following should be
considered:
• Provide a good connection between each sensor and earth
ground;
• Avoid routing sensor input or output wires close to “noisy”
wiring; and
• Avoid optical interference from adjacent EZ-SCREEN Systems
or other photoelectrics .
See Section 5 .2 for additional information .
3.3.8 Multiple-System Applications
Whenever EZ-SCREEN Point Systems operate in close
proximity with other photoelectric devices (EZ-SCREEN
Systems, safety light screens, or other photoelectric sensors),
optical crosstalk may potentially take place between systems.
Because EZ-SCREEN sensors operate at long ranges, it is
especially important to carefully consider the placement of
multiple sensor pairs prior to installation .
To minimize crosstalk, alternate the emitters and receivers, as
shown in Figure 3-11.
To further aid in avoiding crosstalk, the sensors feature a two-
position selectable scan code. A receiver set to one scan code
will not “see” an emitter set to another code. See Section 4.1 for
more information .
Figure 3-11. Mounting multiple EZ-SCREEN emitters and
receivers to mechanically prevent optical
crosstalk
Orient two systems so that their receivers
face in different directions. (This applies
not only to multiple EZ-SCREEN Systems,
but also to EZ-SCREEN Systems
used with other photoelectric
systems.)
1
1
ON
2
3
4
SCAN
CO
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2
1
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1
2
T
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1
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2
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2
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S
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EZ-GUA
RD Gr
id
BANN
ER E
NGINE
ERING
CO
RP., U
SA
888.3
73.67
67
1
1
ON
2
3
4
SCAN
CO
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2
1
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L
1
2
T
L
1
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2
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BANN
ER E
NGINE
ERING
CO
RP., U
SA
888.3
73.676
7
Emitter
Emitter
Receiver
Scan
Code 1
Scan
Code 2
Scan
Code 2
Scan
Code 1
Receiver
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
E
D
M
E
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2
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A
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Grid
BANN
ER E
NG
INEERIN
G CO
RP.
, US
A
888.3
73.67
67
1
1
ON
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SCAN
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1
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1
2
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BANN
ER ENG
INEERI
NG C
ORP.,
USA
888.3
73.676
7
Receiver
Receiver
Emitter
Emitter
Scan
Code 1
Receiver
Mirror #1
Mirror #2
Mirror #1
Mirror #2
Mirror #3
Mirror #4
Mirror #3
Mirror #4
Emitter
1
1
ON
2
3
4
SCAN
COD
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2
1
T
L
1
2
T
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1
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D
M
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2
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EZ-GU
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id
BANN
ER E
NGIN
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NG C
ORP.
, USA
888.37
3.67
67
Emitter
Scan
Code 1
Scan
Code 2
Receiver
1
1
ON
2
3
4
SCAN
COD
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2
1
T
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1
2
T
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1
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Grid
BAN
NER E
NGINE
ERIN
G CO
RP., US
A
888.37
3.67
67
Receiver
Emitter
1
1
O
N
2
3
4
SC
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CO
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2
1
T
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1
2
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1
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US
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88
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Horizontal
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Emitter
Horizontal
Light Screen
Receiver
Opaque Shield
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
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2
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A
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BEA
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1
2
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BANN
ER E
NG
INEE
RING
CORP
., USA
888.373.6767
Receiver
Scan
Code 1
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
E
D
M
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2
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Grid
BANN
ER EN
GINE
ERI
NG
CO
RP., USA
888.
373.67
67
Emitter
Opaque Shield
Scan
Code 2
Receiver
Emitter
Scan
Code 2
Receiver
Emitter
1
1
ON
2
3
4
SCAN
CO
DE
2
1
T
L
1
2
T
L
1
E
D
M
E
D
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2
S
T
A
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BEAM
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1
2
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S
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A
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EZ-GUA
RD Gr
id
BANN
ER E
NGINE
ERING
CO
RP., U
SA
888.3
73.67
67
1
1
ON
2
3
4
SCAN
CO
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2
1
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1
2
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1
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BANN
ER E
NGINE
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CO
RP., U
SA
888.3
73.676
7
Emitter
Emitter
Receiver
Scan
Code 1
Scan
Code 2
Scan
Code 2
Scan
Code 1
Receiver
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
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2
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1
2
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S
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A
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EZ-G
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Grid
BANN
ER E
NG
INEERIN
G CO
RP.
, US
A
888.3
73.67
67
1
1
ON
2
3
4
SCAN
CODE
2
1
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1
2
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1
2
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S
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A
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EZ-G
UAR
D Grid
BANN
ER ENG
INEERI
NG C
ORP.,
USA
888.3
73.676
7
Receiver
Receiver
Emitter
Emitter
Scan
Code 1
Receiver
Mirror #1
Mirror #2
Mirror #1
Mirror #2
Mirror #3
Mirror #4
Mirror #3
Mirror #4
Emitter
1
1
ON
2
3
4
SCAN
COD
E
2
1
T
L
1
2
T
L
1
E
D
M
E
D
M
2
S
T
A
T
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BEAM
S
1
2
R
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S
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S
T
A
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S
EZ-GU
ARD Gr
id
BANN
ER E
NGIN
EERI
NG C
ORP.
, USA
888.37
3.67
67
Emitter
Scan
Code 1
Scan
Code 2
Receiver
1
1
ON
2
3
4
SCAN
COD
E
2
1
T
L
1
2
T
L
1
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D
M
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2
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A
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BEAM
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1
2
R
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T
S
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EZ-GUARD
Grid
BAN
NER E
NGINE
ERIN
G CO
RP., US
A
888.37
3.67
67
Receiver
Emitter
1
1
O
N
2
3
4
SC
AN
CO
DE
2
1
T
L
1
2
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1
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BA
NN
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NG
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NG
CO
RP
.,
US
A
88
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37
3.
67
67
Horizontal
Light Screen
Emitter
Horizontal
Light Screen
Receiver
Opaque Shield
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
E
D
M
E
D
M
2
S
T
A
T
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BEA
MS
1
2
R
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S
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T
S
T
A
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U
S
EZ-GUARD Grid
BANN
ER E
NG
INEE
RING
CORP
., USA
888.373.6767
Receiver
Scan
Code 1
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
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2
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1
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Grid
BANN
ER EN
GINE
ERI
NG
CO
RP., USA
888.
373.67
67
Emitter
Opaque Shield
Scan
Code 2
Receiver
Emitter
Scan
Code 2
Receiver
Emitter
1
1
ON
2
3
4
SCA
N
CODE
2
1
T
L
1
2
T
L
1
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2
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BEAMS
1
2
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Grid
BANN
ER E
NG
INEE
RING
COR
P., US
A
888
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1
1
ON
2
3
4
SCAN
CODE
2
1
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1
2
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2
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1
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RD Grid
BAN
NER E
NGINE
ERING COR
P., USA
888
.373
.6767
Emitter
Emitter
Receiver
Scan
Code 1
Scan
Code 2
Scan
Code 2
Scan
Code 1
Receiver
1
1
ON
2
3
4
SCA
N
CODE
2
1
T
L
1
2
T
L
1
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D
M
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2
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1
2
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S
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EZ-GUARD Grid
BAN
NER E
NGINEE
RING CO
RP.,
USA
888.3
73.6767
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
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1
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BEAMS
1
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RD Grid
BANN
ER E
NGINE
ERING C
ORP.
, US
A
888
.373
.6767
Receiver
Receiver
Emitter
Emitter
Scan
Code 1
Receiver
Mirror #1
Mirror #2
Mirror #1
Mirror #2
Mirror #3
Mirror #4
Mirror #3
Mirror #4
Emitter
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
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D
M
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D
M
2
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T
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1
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A
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RD Grid
BANN
ER E
NGINEERING
CO
RP., USA
888.3
73.67
67
Emitter
Scan
Code 1
Scan
Code 2
Receiver
1
1
ON
2
3
4
SCAN
CODE
2
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1
2
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BANN
ER E
NGINEERING
CO
RP., USA
888.3
73.67
67
Receiver
Emitter
1
1
O
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2
3
4
SCA
N
CO
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2
1
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1
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BA
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Horizontal
Light Screen
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Horizontal
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Receiver
Opaque Shield
1
1
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2
3
4
SCAN
CODE
2
1
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1
2
T
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1
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BANNE
R ENGIN
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ING CORP.
, USA
888.373.6767
Receiver
Scan
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1
1
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2
3
4
SCAN
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1
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BANNER ENGINEERING CORP., USA
888.3
73.6767
Emitter
Opaque Shield
Scan
Code 2
Receiver
Emitter
Scan
Code 2
Receiver
Emitter
1
1
ON
2
3
4
SCA
N
CODE
2
1
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1
2
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1
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BAN
NER E
NGINEE
RING CO
RP.,
USA
888.3
73.6767
1
1
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2
3
4
SCAN
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2
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1
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BANN
ER E
NGINE
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CO
RP., U
SA
888.3
73.676
7
Emitter
Emitter
Receiver
Scan
Code 1
Scan
Code 2
Scan
Code 2
Scan
Code 1
Receiver
1
1
ON
2
3
4
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2
1
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1
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T
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1
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S
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A
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BAN
NER E
NGINEE
RING CO
RP.,
USA
888.3
73.6767
1
1
ON
2
3
4
SCAN
CODE
2
1
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1
2
T
L
1
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1
2
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S
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D Grid
BANN
ER ENG
INEERI
NG C
ORP.,
USA
888.3
73.676
7
Receiver
Receiver
Emitter
Emitter
Scan
Code 1
Receiver
Mirror #1
Mirror #2
Mirror #1
Mirror #2
Mirror #3
Mirror #4
Mirror #3
Mirror #4
Emitter
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
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D
M
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2
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1
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EZ-GU
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id
BANN
ER EN
GIN
EERI
NG C
ORP
., USA
888.373
.6767
Emitter
Scan
Code 1
Scan
Code 2
Receiver
1
1
ON
2
3
4
SCAN
CODE
2
1
T
L
1
2
T
L
1
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2
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1
2
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S
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A
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RD Grid
BANN
ER E
NGINEERING
CO
RP., USA
888.3
73.67
67
Receiver
Emitter
1
1
O
N
2
3
4
SC
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CO
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2
1
T
L
1
2
T
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1
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BA
NN
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NG
INE
ERI
NG
CO
RP
.,
US
A
88
8.
37
3.
67
67
Horizontal
Light Screen
Emitter
Horizontal
Light Screen
Receiver
Opaque Shield
1
1
ON
2
3
4
SCAN
CO
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2
1
T
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1
2
T
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1
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BANNE
R ENGIN
EERIN
G CO
RP., US
A
888.373.6767
Receiver
Scan
Code 1
1
1
ON
2
3
4
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2
1
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1
2
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BANN
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GINE
ERING CORP., USA
888.3
73.676
7
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Code 2
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Scan
Code 2
Receiver
Emitter