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Siemens 6SL3040-1LA00-0AA0 Control Unit

Siemens 6SL3040-1LA00-0AA0 Control Unit

Item NO.: 6SL3040-1LA00-0AA0
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Warranty: 1 year 


Condition : brand new in factory sealed box


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Detail

  • Product NameSiemens 6SL3040-1LA00-0AA0 Control Unit
  • Item NO.6SL3040-1LA00-0AA0
  • Weight0.5000 kg = 1.1023 lb = 17.6370 oz
  • CategoryPLC
  • BrandSiemens
  • Creation Time2025-09-30
  • Siemens Control Unit
西门子 6SL3040-1LA00-0AA0 | SINAMICS S120 CU310-2 DP 控制单元
6SL3040-1LA00-0AA0
Siemens · SINAMICS S120 CU310-2 DP Control Unit
Active Product

Product Profile

The Siemens 6SL3040-1LA00-0AA0 is a SINAMICS S120 CU310-2 DP Control Unit featuring a PROFIBUS DP communication interface. It is designed for single-axis drive control applications and offers a compact, powerful solution for integration into existing PROFIBUS networks. This unit is supplied without a CompactFlash card, which must be ordered separately.

Product Status: Active (PM300)

Communication: PROFIBUS DP

Power Supply: 24 V DC (20.4–28.8 V DC)

Digital Inputs: 11

Digital I/O (bidirectional): 8

Analog Inputs: 1

Encoder Interface: TTL/HTL or SSI (up to 300 kHz)

Technical Data

ManufacturerSiemens
Product FamilySINAMICS S120
Type DesignationCU310-2 DP
Part Number6SL3040-1LA00-0AA0
Communication InterfacePROFIBUS DP
Electronics Power SupplyDC 24 V (20.4 – 28.8 V)
Max. Current Consumption0.8 A @ 24 V DC
Max. Power Loss20 W
Digital Inputs11 (electrically isolated)
Digital I/O (bidirectional)8 (not potential-free)
Analog Inputs1 (voltage: ±10 V, current: ±20 mA)
Encoder Frequency, max.300 kHz
Encoder Supply5 V / 24 V, max. 350 mA
Operating Temperature0 ... 55 °C
Protection ClassIP20
Memory CardRequires CompactFlash card (not included)

System Role

  • Single-Axis Control: The CU310-2 DP is a dedicated single-axis control unit for the SINAMICS S120 drive system. It directly connects to a single Power Module (e.g., PM240-2) without the need for an adapter, making it ideal for straightforward single-drive applications.
  • PROFIBUS DP Communication: Integrates seamlessly into PROFIBUS networks for high-level communication with PLCs and other automation devices.
  • On-Board I/O and Encoder Interface: Provides 11 digital inputs, 8 bidirectional digital I/O points, 1 analog input, and a flexible encoder interface (TTL/HTL/SSI), reducing the need for additional I/O modules.
  • Compact and Standalone: Its compact design and built-in functionality make it suitable for space-constrained control cabinets and decentralized automation architectures.

Compatibility

Compatible Power Modules: Directly compatible with SINAMICS S120 Power Modules, such as the PM240-2 series. Connection is made via the DRIVE-CLiQ interface.

Communication: PROFIBUS DP (RS-485).

Memory Card Requirement: Requires a Siemens CompactFlash card with appropriate firmware and licensing. This card is not included with the control unit and must be ordered separately.

Comparison with CU320-2: While the CU310-2 is a single-axis controller with rich on-board I/O, the CU320-2 is a multi-axis controller (up to 6 axes) with fewer on-board I/O, suitable for more complex, multi-drive systems. For applications requiring multiple axes, the CU320-2 in combination with CUA3x adapters is recommended.

Applications

  • Single-Axis Motion Control: Ideal for applications requiring precise control of a single motor, such as conveyors, feeders, winding machines, and simple positioning tasks.
  • Retrofit and Upgrade: Suitable for modernizing existing machinery by replacing older drives with a PROFIBUS-connected S120 system.
  • Distributed Automation: Can be used as a standalone drive controller in decentralized automation architectures.
  • OEM Machinery: A cost-effective solution for machine builders needing a compact, communication-ready drive controller for standardized single-axis modules.

Frequently Asked Questions (FAQ)

Q1: What is the difference between 6SL3040-1LA00-0AA0 (CU310-2 DP) and 6SL3040-1MA01-0AA0 (CU320-2 PN)?
A: The CU310-2 DP (6SL3040-1LA00-0AA0) is a single-axis control unit with PROFIBUS DP and built-in I/O, ideal for simple applications. The CU320-2 PN is a multi-axis controller (up to 6 axes) using PROFINET, with fewer on-board I/O, designed for complex, multi-drive systems.
Q2: Does the 6SL3040-1LA00-0AA0 come with a CompactFlash card?
A: No, this control unit is supplied without a CompactFlash card. The card must be ordered separately and contains the firmware and necessary licenses for operation.
Q3: Can the CU310-2 DP connect directly to a PM240-2 Power Module?
A: Yes, the CU310-2 DP can connect directly to a PM240-2 via DRIVE-CLiQ without any additional adapter. This is a key difference from the CU320-2, which requires a CUA3x adapter for PM240-2 connections.
Q4: What kind of encoders are supported by the onboard encoder interface?
A: The onboard encoder interface supports incremental encoders (TTL/HTL) and SSI absolute encoders (without incremental signals), with a maximum frequency of 300 kHz.
Q5: Where can I find engineering documentation for this control unit?
A: The primary reference is the Siemens SINAMICS S120 Control Unit CU310-2 DP Manual. Technical data and detailed connection diagrams are also available in the official datasheets and the SINAMICS S120 Engineering Manual.

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