Banner SLLCE14-1050, Instruction Manual

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Cordset example for two cascaded light screens
Machine Interface Cordset (L1): 15.3 m (50.2 ft) QDE-850D
cordset
Sensor Interconnect Cordset (L2): 15.3 m (50.2 ft) DELS-1150E
cordset or shorter
Cordset example for three cascaded light screens at 0.5 A OSSD
load current
Machine Interface Cordset (L1): 15.3 m (50.2 ft) QDE-850D
cordset
Sensor Interconnect Cordset (L2): 15.3 m (50.2 ft) DELS-1150E
cordset or shorter
Sensor Interconnect Cordset (L3): 8 m (26.2 ft) DELS-1125E
cordset or shorter
Cordset example for four cascaded light screens at 0.5 A OSSD load
current
Machine Interface Cordset (L1): 15.3 m (50.2 ft) QDE-850D
cordset
Sensor Interconnect Cordset (L2): 0.3 m (1 ft) DELS-111E cordset
Sensor Interconnect Cordset (L3): 8 m (26.2 ft) DELS-1125E
cordset or shorter
Sensor Interconnect Cordset (L4): 0.3 m (1 ft) DELS-111E cordset
Emitters Receivers
EZ-SCREEN LS
Position #1
Machine
Control
EZ-SCREEN LS
Position #2
EZ-SCREEN LS
Position #3
EZ-SCREEN LS
Position #4
L4
L3
L2
L1
11.3 Response Time for Cascaded Light Screens
Response time is an important factor in determining a light screen’s safety distance (minimum distance). For cascaded EZ-
SCREEN LS systems, that response time is dependent on the number of light screens, the number of beams in the light
screens, and their positions in the cascade. It can be calculated easily, in two ways:
• Based on the worst-case time for the entire cascade (where all light screens in the cascade have the same safety
distance)
• Individually for each light screen in the cascade (safety distance is calculated for each light screen in the cascade)
WARNING: Improper Installation
Failure to follow the installation guidelines and procedures could result in the ineffective or non-operation
of the Banner device that could create an unsafe condition resulting in serious injury or death.
11.3.1 Determining System Response Time
If the safety distance does not need to be optimized (at a minimum), simply add 6 ms to the response time of the receiver
with the longest response time Tr
(max)
(greatest number of beams), and use that number as the overall cascade system
response time.
Ds = K(Ts + Tr) + Dpf
where
Tr = Tr
(max)
+ 6 ms
The 6 ms adder increases safety distance (Ds) a total of 10 mm (0.4 in) when using 1600 mm/s for the hand speed constant
K (see
Calculating the Safety Distance (Minimum Distance)
on page 28).
EZ-SCREEN
®
LS Safety Light Screen
www.bannerengineering.com - Tel: +1.763.544.3164 73