1139300
Shadow 8 User Manual
1-6
Introduction
Shadow 8 Operation
The Shadow 8 light curtain is an optoelectronic presence-sensing device. Shadow 8 uses light
and electric current to detect any object penetrating its field, and when an object is detected,
the light curtain reacts by signaling the press, or other equipment, to stop.
Shadow 8’s transmitter and receiver are mounted on either side of the hazardous area. LEDs
(light emitting diodes) in the transmitter emit harmless, invisible, infrared light pulses when
electric current passes through them. These conical beams of light are aimed at
phototransistors in the receiver (see Figure 1-4), which produce an electrical signal whenever
a light pulse strikes them. An invisible light barrier is formed by these infrared light beams
passing between the transmitter and receiver. If one of the phototransistors in the receiver
does not “receive” its designated light pulse, as when the operator’s hand or another
obstruction penetrates the light field, Shadow 8 sends a stop command to the press.
UNPROTECTED EQUIPMENT MAY CONTINUE TO OPERATE AFTER GUARDED PRESS
STOPS
Ensure that all operators know which device(s) are protected by your Shadow safety light curtains
and which are not. Though a protected press will stop when the Shadow light curtain is
interrupted, associated feeds and conveyors not protected by Shadow will continue to operate
after the press stops.
Failure to comply with these instructions could result in death or serious injury.
Figure 1-4. Shadow 8 Light Beams
WARNING
!
Transmitter
Receiver
Light beams
Summary of Contents for Shadow 8
Page 95: ...1139300 Shadow 8 User Manual 3 10 Operation ...
Page 107: ...1139300 Shadow 8 User Manual 4 12 Troubleshooting ...
Page 111: ...1139300 Shadow 8 User Manual B 2 Checkout Procedure Log ...
Page 113: ...1139300 Shadow 8 User Manual C 2 Test Procedure Log ...
Page 135: ...1139300 Shadow 8 User Manual D 22 Extracts from OSHA and ANSI ...
Page 136: ...Shadow 8 User Manual 1139300 Extracts from OSHA and ANSI D 23 ...
Page 137: ...1139300 Shadow 8 User Manual D 24 Extracts from OSHA and ANSI ...
Page 143: ...1139300 Shadow 8 User Manual I 4 Index ...
Page 146: ......
Page 147: ......
Page 148: ......
Page 149: ......
Page 150: ......
Page 151: ......
Page 152: ......
Page 153: ......
Page 154: ......
Page 155: ......
Page 156: ......
Page 157: ......
Page 158: ......
Page 159: ......