Siemens · SINAMICS G120 · CU240S PN
Siemens 6SL3244-0BA20-1FA0 SINAMICS G120 CU240S PN Control Unit
The Siemens 6SL3244-0BA20-1FA0 is a CU240S PN Control Unit
for the modular SINAMICS G120 converter platform. It combines drive-control
functions with configurable I/O, encoder feedback, motor-temperature monitoring
and PROFINET communication for integration into industrial automation systems.
SINAMICS G120 CU240S PN PROFINET Encoder Interface MMC Interface
PROFINET Drive Control
Product Profile
The Siemens 6SL3244-0BA20-1FA0 is the PROFINET variant
of the original CU240S Control Unit family. It provides the control and
monitoring functions for a compatible SINAMICS G120 Power Module while also
serving as the interface between the drive and a PROFINET-based automation network.
This Control Unit supports general-purpose machine-control signals,
analog process values, motor feedback and drive parameterization.
Its modular architecture allows the drive control electronics and power stage
to be selected independently according to the application.
Siemens Official Interface Data
Technical Data
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Manufacturer
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Siemens
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Article Number
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6SL3244-0BA20-1FA0
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Product Family
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SINAMICS G120
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Control Unit Type
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CU240S PN
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Digital Inputs
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9
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Digital Outputs
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3
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Analog Inputs
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2
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Analog Outputs
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2
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Fail-Safe Digital Inputs
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Not provided on CU240S PN
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Motor Temperature Interface
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PTC / KTY84
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Encoder Interface
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1, TTL or HTL
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External 24 V Supply
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Supported
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Memory Interface
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MMC interface / MMC slot
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Option Port
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STARTER or BOP interface
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Bus Interface
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PROFINET
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Network Connector
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RJ45
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Power Module Interface
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PM-IF
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Status LEDs
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7
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Drive Control & Automation Interface
System Role
Drive Control
Executes the closed-loop control functions required by the connected Power Module and motor.
PROFINET Integration
Provides direct communication between the G120 drive and a PROFINET automation network.
Machine I/O
Processes discrete and analog machine signals without requiring all field signals to be routed through an external controller.
Encoder Feedback
Supports feedback-based drive functions through the dedicated encoder interface.
Parameter Storage
The MMC interface supports drive parameter handling and commissioning workflows.
Motor Monitoring
Supports temperature feedback from compatible motor sensors through the dedicated PTC/KTY interface.
SINAMICS G120 Integration
Compatibility
The 6SL3244-0BA20-1FA0 was developed for the earlier
modular SINAMICS G120 architecture and connects to a compatible G120 Power Module
through the dedicated PM-IF interface.
Replacement Check
When replacing the Control Unit, confirm the Power Module generation,
PROFINET configuration, firmware level, encoder use, I/O assignment,
parameter backup and commissioning data before installation.
Generation Difference
Later SINAMICS G120 Control Unit families use different article numbers,
hardware interfaces and firmware concepts. A newer PN Control Unit should
therefore not be treated as a direct plug-in replacement without system verification.
Networked Machine Drives
Applications
The CU240S PN is intended for SINAMICS G120 installations where the drive
is integrated into a PROFINET-based automation architecture while also handling
local machine signals and motor-control functions.
Conveyor Systems
Networked variable-speed motor control in material-handling systems.
Production Machines
Drive integration within automated manufacturing cells and machine lines.
Process Equipment
Motor-control tasks requiring configurable local I/O and network communication.
Product Questions
Frequently Asked Questions
1. What is 6SL3244-0BA20-1FA0?
It is a SINAMICS G120 CU240S PN Control Unit with PROFINET communication.
2. Is 6SL3244-0BA20-1FA0 the same as 6SL3244-0BA20-1BA0?
No. The 1FA0 version is CU240S PN with PROFINET, while the 1BA0 version is the standard CU240S with USS on RS485.
3. Does this Control Unit include encoder support?
Yes. Siemens specifies one TTL or HTL encoder interface for CU240S PN.
4. Does it include fail-safe digital inputs?
No. Fail-safe digital inputs belong to the PN-F variant, not the standard CU240S PN.
5. Can a newer PROFINET Control Unit replace 6SL3244-0BA20-1FA0 directly?
Not automatically. Hardware generation, firmware, Power Module compatibility and commissioning data must be verified first.
Support for Legacy Automation Systems
About IndustryParts
IndustryParts supplies industrial automation components used in
maintenance, modernization and long-life production systems.
We work with drive technology, PLC and DCS modules, communication
hardware, control electronics and industrial I/O.
For older equipment, correct article-number identification is essential.
Our team assists customers with model verification, sourcing,
quotation preparation and worldwide order support.
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