Siemens 6SL3040-1LA01-0AA0 SINAMICS S120 CU310-2 PN Control Unit
Single-axis SINAMICS S120 Control Unit with PROFINET, EtherNet/IP and an integrated encoder interface.
01Overview
Siemens 6SL3040-1LA01-0AA0 is the SINAMICS S120 CU310-2 PN Control Unit for single-axis drive applications. It integrates PROFINET and EtherNet/IP communication, an onboard encoder interface for supported TTL, HTL or SSI feedback, configurable I/O and one DRIVE-CLiQ connection. The article is supplied without a CompactFlash card, so the correct SINAMICS firmware and license card must be selected separately for the intended drive configuration.
02Specs
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SL3040-1LA01-0AA0 |
| Product Designation | SINAMICS S120 CU310-2 PN |
| Control Scope | Single-axis drive control |
| Communication | PROFINET and EtherNet/IP |
| DRIVE-CLiQ Connections | 1 |
| PROFINET Ports | 2 |
| Ethernet Interface | 1 |
| Digital Inputs | 11 |
| Bidirectional Digital I/O | 8 parameterizable DI/DO |
| Encoder Interface | TTL / HTL incremental or SSI absolute encoder |
| Electronics Supply | 24 V DC; permissible range 20.4 to 28.8 V |
| Maximum Current Consumption | 0.8 A |
| Maximum Power Loss | 20 W |
| CompactFlash Slot | 1; card not included |
| Operating Temperature | 0 to 55 °C |
| Protection / Approvals | IP20; CE, KC, cULus, EAC and RCM |
03Features
Key Functions
- Controls one SINAMICS S120 drive axis through the CU310-2 architecture.
- Provides two PROFINET ports and supports EtherNet/IP communication.
- Includes an onboard encoder interface for supported TTL, HTL and SSI feedback devices.
- Offers eleven digital inputs and eight parameterizable bidirectional digital I/O channels.
- Provides a dedicated temperature-sensor connection and measuring sockets for commissioning.
- Uses a separate CompactFlash card for the required SINAMICS firmware and licensing.
Product Identity
- Manufacturer: Siemens
- Model: 6SL3040-1LA01-0AA0
- Product Type: SINAMICS S120 CU310-2 PN single-axis Control Unit
- Status: Active product
04Applications
- Single-axis positioning tasks coordinated by a PLC over PROFINET.
- Servo or vector drive applications requiring local encoder evaluation.
- SINUMERIK ONE configurations that use a CU310-2 PN for PLC-controlled positioning.
- Machine modules requiring a compact networked S120 control unit.
- Maintenance replacement of an installed CU310-2 PN with the same firmware and option concept.
05Lifecycle
- Siemens lists 6SL3040-1LA01-0AA0 as an active product.
- The Control Unit is ordered without a CompactFlash card; select the official firmware and license card separately.
- Preserve parameters, firmware version, topology, IP settings and encoder data before exchange.
- Confirm the Power Module or Motor Module, option board, I/O and Safety Integrated configuration.
- After replacement, restore the approved project and validate communication, feedback, motor direction and machine functions.
06FAQ
What drive scope is assigned to 6SL3040-1LA01-0AA0?
It is the SINAMICS S120 CU310-2 PN Control Unit intended for single-axis drive control.
Which industrial Ethernet protocols are built into this CU310-2?
The official datasheet lists PROFINET and EtherNet/IP communication.
Can the CU310-2 PN evaluate a directly connected encoder?
Yes. The integrated interface supports documented TTL, HTL and SSI encoder variants.
Is a CompactFlash card included with the article?
No. Siemens identifies this article as the Control Unit without a CompactFlash card.
How many DRIVE-CLiQ connections are provided?
The CU310-2 PN provides one DRIVE-CLiQ connection.
What must be checked before a service exchange?
Check the firmware card, license, drive topology, PROFINET settings, encoder type, I/O, option board and saved parameter project.
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