Configuration Setup
© 2009 Hirschmann Automation and Control GmbH · Branch Office Ettlingen · eMail: info.ecs@hirschmann.de · www.hirschmann.com 4
24 183 69 1012e (Generic) / 2009-02-26 / Rev. 01 / rk.
Components:
CPU/Console: The iVISOR mentor QVGA load moment indicator comprises a central
microprocessor unit with an integrated display and operating console together with various
sensors to record measured values. The system components are connected via CAN bus.
The iVISOR mentor QVGA displays all geometrical information such as length and angle
of main boom, working radius and tip height of the boom. It also displays the actual load
and the maximum load permitted by load chart. Furthermore, it has an acoustical alarm, a
warning light for overload, and a pre-warning light.
The graphic display allows for a simple interactive configuration setup, as well as sensor
calibration (zero adjustment), and troubleshooting sensor output screen. The console has
a warning light for anti-two-block conditions and an override switch for overload or anti-
block condition.
Length-Angle Transducer: The length-angle sensor gSENS LWG, often referred to as
the “cable reel”, is a combination of two transducers in one box, installed on the base
section of the boom. It measures the length and the angle of the boom. A reeling drum
drives a potentiometer, which is the length transducer. Part of the length transducer circuit
is the length cable on the drum, which is a multi-conductor cable. It is connected to the
anti-two-block switch at the boom head and to a slip ring body in the LWG. The angle
transducer is a potentiometer driven by a weighted pendulum that is oil damped. Both
length and angle transducer are connected to a CAN bus controller board, which is
connected to the bus system.
Pressure Transducer(s): A pressure transducer pSENS DAVS converts hydraulic
pressure into a CAN signal. One (or two) pressure transducer is (are) connected to the
piston side of the lift cylinder and one to the rod side.
Slew Angle Sensor: The gSENS DWG sensor converts the circular motion of the upper
structure of the crane into a CAN signal.