Siemens Sinamics S120 Control unit w/ profibus interface, w/o compact flush card Part number 6SL3040-1LA00-0AA0

Product Overview

The Siemens SINAMICS S120 Control Unit CU310-2 DP (SKU: 6SL3040-1LA00-0AA0) is a high-performance module for single-axis drive applications within the SINAMICS S120 system. It provides precise control, fast signal processing, and integrated PROFIBUS DP communication, enabling seamless integration in automation and motion-control environments. This control unit is ideal for applications requiring accurate speed, torque, or position control in industrial systems.

Key Features

• Integrated PROFIBUS DP communication interface
• 11 digital inputs and 8 configurable digital I/O channels
• 1 analog input supporting ±10 V or ±20 mA signals
• Optional encoder evaluation for TTL/HTL or SSI encoders
• Encoder frequency up to 300 kHz, SSI baud rate 100–1,000 kBaud
• CompactFlash slot for parameter and firmware storage
• High electromagnetic compatibility and robust design for industrial environments

Technical Specifications

• Product Type: SINAMICS S120 Control Unit CU310-2 DP
• Article Number: 6SL3040-1LA00-0AA0
• Communication: PROFIBUS DP
• Digital Inputs: 11 inputs, –3…30 V; Low = –3…5 V, High = 15…30 V; 3.5 mA @ 24 V DC
• Bidirectional Digital I/O: 8 channels (24 V DC, 0.5 A max per output)
• Analog Input: 1 channel (±10 V / ±20 mA, 12/11 bit resolution)
• Encoder Interface: TTL/HTL incremental or SSI absolute (up to 30 bit resolution)
• Encoder Supply: 5 V / 24 V DC, 0.35 A max each
• Electronics Power Supply: 24 V DC (20.4 – 28.8 V)
• Max. Power Consumption: 0.8 A / 20 W
• Protection Rating: 20 A fuse recommended
• Environmental Temperature (operation): 0 – 55 °C
• Storage Temperature: –25 – 55 °C; Transport –40 – 70 °C
• Relative Humidity (transport): ≤ 95 % at 40 °C
• Installation Altitude: up to 2 000 m (6 561 ft)
• Connections: 1 × PROFIBUS, 1 × Ethernet, 1 × DRIVE-CLiQ, 1 × 24 V, 1 × PE (M5)
• Flash Card Slot: 1 (CompactFlash)
• Dimensions (W × H × D): 73 × 191 × 75 mm
• Net Weight (approx.): 0.95 kg
• Certifications: CE, KC, cULus, EAC, C-Tick (RCM)

Compliance & Certifications

• Complies with CE, KC, cULus, EAC and C-Tick (RCM) standards
• RoHS compliant (Germany)

Applications

Ideal for use in SINAMICS S120 drive systems across industrial automation, machine tools, material handling, and motion-control applications. Provides precise speed, torque, and position control, robust communication via PROFIBUS DP, and flexible I/O for integration into complex automation networks.