Liebherr LR 1130 - Manual (Page 14)

Liebherr LR cranes 14
Control system
For many years, the heart of the hydraulic crawler cranes has been the
Liebherr Litronic control system, which has been developed and manufac-
tured in-house. It includes all control and monitoring functions. The system
is designed to withstand extreme environmental conditions and heavy duty
construction tasks and has proved itself in these situations.
Due to the integration of the load moment limitation in the control system
some additional components, which otherwise would have been necessary,
are no longer required. The boom configuration can be pre-selected quickly
and easily on the touchscreen in the operator’s cab. The system allows eve-
ry equipment configuration to be operated without changing the software.
Moreover, the excellent computing power provides quick supervision of the
crane‘s monitoring functions. For movements performed simultaneously the
operator does not notice the power-output distribution and can operate the
crane easily and without any restrictions. At the same time the lifting capac-
ity is calculated and monitored during operation in case of changing boom
angles.
All information necessary for the on-going op-
eration of the machine is clearly displayed on the
monitor in the operator’s cab. Warning signals and
irregularities, for example filter clogging, are im-
mediately displayed as they occur. The storage
of such incidents allows problems to be identified
and taken care of at an early stage in order to pre-
vent further damage.