9
EXTENSION SENSOR CODE : ACT
EXTENSION SENSOR CODE : ACT
The boom and angle sensor is formed by a cable reel having pulley on
which a cable is wounded; the other side is attached to the boom head
(or to the first telescopic element in case of proportional extension).
Extending the boom, the cable unwinds (max. 12 mt.) measuring the
extension length signal through 10-turns servo potentiometer.
While using the machine, it is always necessary to carefully survey the
unwinding cable along the boom, because it can be subject to
accidental break if collided.
The replacement of this element has to be done by Qualified Personnel
only.
The angle sensor (inside the cable reel) detects the absolute angle of
the boom.
Analog signals from above potentiometers are used by the LMI to
compute the boom geometrical data.
