SIEMENS
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Siemens NC 62 · 2016
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SINAMICS S120 drive system
Introduction
Control Units
CU310-2 PN, CU310-2 DP, CU320-2 PN
CU320-2 DP, NCU 730.3B PN, Numeric Control Extension NX15.3
Control Units for drive control in SINUMERIK,
the Numeric Control Extensions NX and the CU320-2
SINAMICS S120 Control Unit CU320-2
These central Control Units can be used to create links between
individual drives and implement simple technology functions.
The CU320-2 Control Unit has been designed to control multiple
drives. With the SINUMERIK, up to 6 drives can be operated in
servo control mode on one Control Unit.
The Control Units in the SINUMERIK CNCs are available in
various rating classes for implementing coordinated motion
control in a multi-axis interpolation grouping on machine tools:
SINUMERIK 840D sl
•
NCU 710.3B PN/NCU 720.3B PN/730.3B PN with integral
drive control. Up to three NCU 730 units interlinked by NCU-
Link represent the highest possible performance level. They
are capable of controlling up to 93 axes in up to 10 machining
channels.
•
Numeric Control Extensions NX10.3/NX15.3 for extended
control of up to 3/6 axes
Commissioning and diagnostics of the various Control Units in
combination with the power components is performed in combi-
nation with the SINUMERIK using the drive wizard of the
SinuCom NC commissioning tool. Alternatively, the drive can be
commissioned using the STARTER commissioning tool.
For further information about STARTER, see engineering
software.
Motor Modules
The Motor Modules are the final controlling element for the motor
and feature a DC link that is fed from a DC voltage and, as an
output, an inverter for feeding the motor.
Line Module and two Motor Modules in booksize format
Motor Modules are designed for multi-axis drives and are con-
trolled by a SINUMERIK NCU or a CU320 Control Unit. The Motor
Modules are interconnected through a common DC bus. Since
the Motor Modules share the same DC link, they can exchange
energy with one another, i.e. if one Motor Module operating in
generator mode produces energy, the energy can be used by
another Motor Module operating in motor mode. The DC link is
supplied with line supply voltage by a Line Module.
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G_D211_XX_00043
Motor
Module
Line
Module
Control
Unit
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M
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M
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DRIVE-CLiQ
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Overview
(continued)
© Siemens AG 2016