Siemens SIMOCRANE User Manual
SIMOCRANE Sway
Control for STS
High productivity and
maximized safety
siemens.com/cranes
Quick and precise positioning,
safe and stable operations
Innovative technology enhancing productivity and safety
Prevent Load Collision in Manual Mode
Crane operators must be focused when performing their
work assignments in order to operate safely and quickly.
The Siemens Cranes “Soft Approach” function assists crane
operators minimizing risks of collision in manual operation.
The system supports Hoist to perform soft-landing as well
as for trolley to achieve smart- slow-down. Depending on
fixed or variable obstacle, crane will either stop in front of a
mechanical structure or move softly to a next adjacent
container.
Fig 2 Hydraulic system combined with electric system
Fig 1 Soft-landing and smart-slow-down
Sway Controlled and damped in positioning
SIMOCRANE Sway Control System damps and controls the
sway of the load using a complete and approved
mathematic model. The system can adapt its behavior
according to different required scenarios. For example, to
tolerate some sway for quickly speed-up and to remove
sway without overshooting at target position. A stable and
repeatable movement ensure high productivity and safety.
Skew damping and Trim-List-Skew positioning
During the crane movement, the container has often uncontrolled skew oscillation and unexpected trim/list/skew
angle because of wind or unsymmetrical distributed load in
container. This phenomenon becomes visible especially
before landing into the ship cells or over the lash platform.
This undesirable skew oscillation is uncontrolable for operators. As solution, Siemens provides you the skew-damping
function which can be executed either by a hydraulic system or by an electric system. In addition, the TLS-positioning can help you to move the spreader automatically to the
same TLS-position as last time in waterside or landside.
‘Blocked region’ increases safety and flexibility
A blocked region is defined by an area with physical or virtual
obstacle plus a predefined safety margin. No movement is
allowed inside this region except of ‘Soft Approach’ in Manual
Mode. It is important to consider all obstacles in calculation of
the 2D-trajectory. Siemens Sway Control System provides four
different ways to build up and update the blocked regions:
• By defining fixed obstacles during commissioning.
• By learning and moving if no additional bay scanner
exists.
• By connecting with point laser as bay scanner.
• By receiving a complete 2D ship profile from higher level
controller.
A safety margin is defined to cover sensors uncertaint and
inaccuracy. In addition, various monitoring and reactions
required are implemented to make crane movement safe
and efficient.
Fig 3 Definition of a blocked region
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