SIEMENS
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Siemens NC 62 · 2016
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SINAMICS S120 drive system
SINAMICS S120 Combi
Power Modules
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Overview
SINAMICS S120 Combi Power Module
SINAMICS S120 Combi is a very compact and rugged drive
concept tailored for compact turning and milling machines.
SINAMICS S120 Combi integrates a line infeed with regenerative
feedback capability, power units for spindle and feed motors
as well as a TTL encoder interface into a single Power Module.
The SINAMICS S120 Combi Power Modules are optimized as
a drive for machine tools with 3 to 6 axes. The Power Modules
are available with external air cooling. SINAMICS Motor Modules
in booksize compact format are used as expansion axes.
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Benefits
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Compact multi-axis module with line infeed with regenerative
feedback capability and power units for 3 or 4 axes
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Customized drive system for compact standard turning and
milling machines
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Requires very little mounting space in control cabinet incl.
fan unit, shield terminals and ventilation clearances
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Optimized for weak supply networks with frequent under-
voltage, network imbalances and large frequency fluctuations
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Optimized for harsh operating conditions with increased
cabinet temperature and increased humidity
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Rugged Power Modules resistant to short circuits, overvoltage
and ground faults
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Rugged and easy-to-fit screw-type terminals with
integrated shield connection for the power cables
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Perfectly designed for expansion using additional Motor
Modules in booksize compact format
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Low energy consumption thanks to state-of-the-art 400-V
technology
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Excellent dynamic response and machining precision thanks
to Dynamic Servo Control (DSC)
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Simple cabling due to intelligent DRIVE-CLiQ interface
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Very simple commissioning thanks to predefined topologies
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Function
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Power Module with 3 or 4 integrated power units
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Integrated line infeed with regenerative feedback capability
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Integrated TTL encoder interface
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Integrated motor brake control for one axis
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Integrated fan power supply
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Line supply voltage 380 to 480 V 3 AC
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Supply types TT, TN and IT
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Integrated shield terminals
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Heat dissipation concept with an external heatsink for
extremely low power losses in the control cabinet
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Easy-to-mount fan module optimized for harsh environments
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Increased availability thanks to fan monitoring
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Derating only from 45 °C (113 °F) cabinet temperature
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Power cables are connected by means of screw-type
terminals
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Integration
The following components can be connected to the
SINAMICS S120 Combi drive system:
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SINUMERIK 828D BASIC
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SINUMERIK 828D
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3 or 4 spindle/feed motors
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3 or 4 motor encoders
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3 or 4 direct encoders via DMC20
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Direct spindle encoder directly to TTL or sin/cos via SMC20
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External fan module
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Up to two additional SINAMICS S120 Motor Modules in
booksize compact format via DC link connection and
24 V DC busbars
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Braking Module with braking resistor via DC link connection
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Control Supply Module via DC link connection and
24 V DC busbars
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One safe motor brake control
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5 or 6 DRIVE-CLiQ sockets
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24 V electronic power supply via connector
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1 safe standstill input for the infeed (Enable Pulses)
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1 safe standstill input for the spindle and feeds
(Enable Pulses)
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1 temperature sensor input for the spindle
(KTY84-130/PT1000 or PTC)
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PE connections
The scope of supply of the SINAMICS S120 Combi Power
Modules includes:
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SINAMICS S120 Combi Power Module
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Accessories pack consisting of:
- 4 DRIVE-CLiQ dust-proof blanking plugs
- Connector X224 for the electronics power supply
- Connector X11 for motor brake control
- Connector X21 Enable Pulses infeed
- Connector X22 Enable Pulses drives/temp.
- 5 shield terminals for power cables
- Shield terminal for signal cable
© Siemens AG 2016