Siemens 6SL3040-1LA00-0AA0 SINAMICS S120 CU310-2 DP PROFIBUS 11 DI 1 AI Drive Control Unit

The Siemens SINAMICS S120 CU310-2 DP (6SL3040-1LA00-0AA0) is a Control Unit for the SINAMICS S120 drive system, communicating over PROFIBUS DP and supplied at 24 V DC (20.4-28.8 V). It provides 11 digital inputs, 1 analog input configurable for -10...10 V or -20...20 mA, and an encoder interface supporting SSI (100...1,000 kBaud, 30-bit absolute resolution) and TTL encoders over cable runs up to 100 m.

Technical Specifications

Selection Notes

Choose the DP variant of the CU310-2 over a PROFINET-based control unit when the plant's fieldbus backbone is already PROFIBUS - it communicates directly over the same 9-pin RS485 network used by other PROFIBUS DP devices without a protocol converter. The SSI encoder interface with 30-bit absolute resolution and 100...1,000 kBaud baud rate suits absolute encoder feedback for positioning tasks, while the separate TTL encoder input, rated for cable runs up to 100 m, supports incremental encoder feedback on the same axis.

Applications

Provides motion control and closed-loop feedback for a SINAMICS S120 motor module in general-purpose and positioning drive applications integrated into a PROFIBUS DP automation network, using the digital and analog I/O for local sensor and actuator wiring at the drive.