SIEMENS
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Siemens CR 1 · 2015
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SIMOCRANE application examples
SIMOCRANE ECO Technology
Rubber tired gantry (RTG) crane
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Application
This application example describes an ECO configuration for a
rubber tired gantry (RTG) crane.
Application example
The objective is to reduce the fuel consumption by operating
the diesel engine/electrically driven RTG crane at speeds
dependent on the load using standard industrial products
and SIMOCRANE products from Siemens.
Savings generated by an ECO configuration depend on a
number of crane-specific factors. Only a few of these factors
can be influenced by ECO Technology. Concrete statements
cannot therefore be made about the achievable savings for
specific configurations. It can be assumed, however, that
when SIMOCRANE ECO Technology is used in comparison
to cranes with constant speed or 2 speeds, a noticeable saving
is achieved.
Comparison tests have demonstrated a savings potential of bet-
ween 40 and 50 %. Test cycles were conducted under identical
conditions at a constant speed of 1800 rpm and at speeds con-
trolled by ECO Technology for the purposes of comparison.
Siemens offers support with specification of the possible crane
construction and use. The final average consumption of the
crane will be determined by the actual design and use of the
crane.
To achieve savings, the following factors should be taken into
account:
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Selection of combustion engine; every combustion engine has
typical dynamic behavior and typical consumption.
•
Design of the crane (total weight, components, gears, tires,
spreaders, etc.)
•
Speed, acceleration times, and design of the hoisting gear,
trolley, or crane travelling gear
•
Design of the auxiliary power supply (lighting, heating, coo-
ling, etc.); the basic load of the auxiliary power supply should
be as low as possible.
•
Use of the crane
All cranes differ with regard to their specifications and the rele-
vant design, so it is extremely difficult to quantify the possible
savings of one crane over another. Specification of the required
maximum fuel consumption per hour is the better approach. The
overall design of the hardware (crane and installation) and soft-
ware can then be developed and optimized on the basis of this
specific ECO requirement.
Solution
In this example of an upgrade to SIMOCRANE ECO Technology,
a configuration with SIMOCRANE Basic Technology was selec-
ted. SIMOCRANE Basic Technology is equipped with tested
crane functionality. The Basic Technology package comprises
SIMOTION D with a CompactFlash card. The ready-to-use ap-
plication with integrated ECO Basic Technology interface can
be used with minimum configuration and commissioning outlay.
Use of SIMOCRANE Basic Technology is not mandatory for ope-
ration of SIMOCRANE ECO Technology. For realization of the
ECO example, the following SIMOCRANE products have to be
selected:
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1 × SIMOCRANE ECO Technology V1.0 license
Article No.
6GA7230-0AA00-0AA0
•
1 × SIMOCRANE Basic Technology V3.0
Article No.
6AU1660-4AA20-0AA0
•
1 × SIMOCRANE CMS V4.3 Lean
Article No.
6GA7214-0AA00-0AA0
•
1 × SINAMICS S120 Motor Module in chassis format as infeed
•
1 × SINAMICS S120 Motor Module in booksize or chassis for-
mat with sinewave filter as an auxiliary drive
© Siemens AG 2015