Table 5: Cable length options for three cascaded light screens
Recommended cable pairing per side of cascaded system
Machine Interface Cable (L1)
QDE-..D
1 ft
3 ft
15 ft
25 ft
L2 (ft)
L3 (ft)
L2 (ft)
L3 (ft)
L2 (ft)
L3 (ft)
L2 (ft)
L3 (ft)
Max. L2 (ft)
115
1
110
1
80
1
60
1
Max. L3 (ft)
1
200
1
200
1
155
1
110
Sensor
Interconne
ct Cable
Lengths
(L2, L3)
Individual
DEE2R-..D
cables 14
100
15
100
15
75
75
75
50
75
15
50
100
50
100
50
50
50
15
25
100
25
100
25
100
25
50
15
100
15
100
15
100
15
75
3
100
3
100
3
100
3
100
1
100
1
100
1
100
1
100
Example 1:
Machine Interface Cable (L1): 3 ft
Sensor Interconnect Cable (L2): 75 ft
Sensor Interconnect Cable (L3): 50 ft
Example 2:
Machine Interface Cable (L1): 15 ft
Sensor Interconnect Cable (L2): 75 ft
Sensor Interconnect Cable (L3): 15 ft
Emitters
Machine
Control
Receivers
L2
L1
EZ-SCREEN
Position #2
L3
EZ-SCREEN
Position #3
EZ-SCREEN
Position #3
Because of the number of possible combinations, the following table includes only applications in which L2 = L4. A
common installation example is one that protects two areas of a machine (for example, the front and back of a power press)
and uses four EZ-SCREEN pairs to create two “L”-shaped sensing fields.
Table 6: Cable length options for four cascaded light screens
Recommended cable pairing per side of cascaded system
Machine Interface
Cable (L1) QDE-..D
1 ft
3 ft
15 ft
25 ft
L2
L3
L4
L2
L3
L4
L2
L3
L4
L2
L3
L4
Max. L3
1 ft
110 ft
1 ft
1 ft
105 ft
1 ft
1 ft
75 ft
1 ft
1 ft
45 ft
1 ft
Sensor
Intercon
nect
Cables
(L2, L3
and L4
Individua
l
DEE2R-.
.D
cables15
50
15
50
50
15
50
25
50
25
25
50
25
25
25
25
15
75
15
15
75
15
15
25
15
15
15
15
3
100
3
3
100
3
3
50
3
3
25
3
1
100
1
1
100
1
1
75
1
1
25
1
14 Multiple DEE2R-..D cables may be required.
15 Multiple DEE2R-..D cables may be required
EZ-SCREEN
®
14/30 mm Safety Light Screen
66
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