Quick answer: The Siemens SINAMICS G120 CU240B-2 (order code 6SL3244-0BB12-1BA1) is a Basic control unit for the modular G120 drive system. Entry-level CU. Basic V/Hz and sensorless vector control.
| Model | CU240B-2 |
| Order Code | 6SL3244-0BB12-1BA1 |
| Description | Basic control unit |
| Communication | USS/Modbus RTU |
| Safety Functions | STO — SIL 2 / PLd (basic) |
| Compatible Power Modules | G120 PM240-2, PM230, PM250, PM260, PM330 |
| Programming | STARTER software, SCOUT NX, or TIA Portal Drive Library |