Control unit for building and process drives
The Siemens 6SL3243-6BB30-1HA3 is a SINAMICS G120P BT control unit, type CU230P-2 BT, designed for pump, fan, and compressor drives in building automation and process applications. The unit provides 6 digital inputs, 3 digital outputs, 4 analog inputs, and 2 analog outputs, plus a dedicated motor temperature sensor input and two power supply outputs (10 V DC and 24 V DC).
Cabinet integration and wiring
The USB and MMC interfaces on the front panel allow direct commissioning and data backup without opening the cabinet door. The 24 V DC power supply input (PSU-IN) must be sourced from the cabinet's control transformer or a dedicated SELV supply; the two auxiliary outputs (10 V DC and 24 V DC) can power external sensors or encoders, simplifying wiring in the panel.