SIEMENS
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Siemens D 21.4 · 2017
SINAMICS S120 drive system
System overview
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Overview
(continued)
Booksize format
Booksize format units are optimized for multi-axis applications
and are mounted adjacent to one another. The connection for the
common DC link is an integral feature. The units are cooled by
an internal air cooling circuit.
Booksize compact format
Derived from the booksize format we developed the booksize
compact format for machines with particularly high requirements
for the compactness of their drives. The booksize compact
format offers most features of the booksize format, but with a
reduced overall height. The units are cooled by an internal air
cooling circuit.
Blocksize format
Blocksize format units are optimized for single-axis applications
and are available only as Power Modules.
The CU310-2 can be directly snap-mounted. The units are
cooled by an internal air cooling circuit.
With the push-through versions, the Power Module cooling fins
extend through the rear panel of the control cabinet, thus facili-
tating cooling. Push-through versions should be used in applica-
tions where the amount of power loss generated inside the
control cabinet itself must be minimized.
Chassis format
Higher-output units (approximately 100 kW and above) are con-
structed in chassis format. These are available as Line Modules,
Power Modules and Motor Modules. Chassis format units are
cooled by an internal air cooling circuit. Liquid-cooled devices
can be ordered for special applications such as extrusion pro-
cesses or marine engineering. The CU310-2 Control Unit can be
integrated in the Power Modules.
Additional information on liquid-cooled converters is provided in
Catalog D 21.3.
© Siemens AG 2017