Columbus McKinnon MAGNETEK LaserGuard Mini, Техническое руководство, Страница: 10 / 36

LaserGuard Mini Technical Manual
July 2021
Page 10 of 36
1.3 System Description
Magnetek's LaserGuard Mini Collision Avoidance System measures the distance between the laser
sensor's lens and its companion retro-reflective target by means of pulse-ranging technology. This allows
for very accurate measurements and energy efficiency. The laser used in the LaserGuard Mini system
measures distances from 8 in. to 164 ft (0.2-50 m). The laser has a visible red light beam, which makes
system alignment very easy. Two LEDs (balloon 1 and balloon 2) on the front and top of the laser indicate
power and alignment. A steady green light indicates power to the laser. In the event of a laser short circuit,
the green LED will flash at 4Hz. A yellow light indicates the target is acquired and reading a signal.
Figure 1-1: Laser Optical Unit
The system includes an adjustable mounting bracket and a reflective target. The reflective target is
mounted on the wall or other crane that is going to be protected by the collision avoidance system.
The two laser distance set points are adjustable to trip the relays from approximately 8 in. to 164 ft
(0.2-50 m). The first distance set point (typically a Slowdown point) signals for the crane to start
decelerating. The second distance set point (typically a Stop point) will signal the crane to apply its brakes.
The relationship between these points are as follows:
164 ft (50 m)

Slowdown > Stop

8 in. (0.2 m)