Siemens CU240E-2 SINAMICS G120 standard inverter

Siemens CU240E-2 is a control unit in the SINAMICS G120 standard inverter. The following is its introduction:

Overview: CU240E-2 is one of the core components of the SINAMICS G120 series inverter, with the order number 6SL3244 - 0BB12 - 1BA1. It needs to be used with a compatible power module to form a complete inverter drive. It is suitable for a wide range of applications such as conventional machinery manufacturing, such as conveyors, mixers, and blenders.

Appearance size and weight: The size is 73mm wide×199mm high×39mm deep, and the weight is about 0.49kg.

Interface and function

Analog input and output: It provides 2 analog input and 2 analog output interfaces, which can be used to connect external sensors or actuators to achieve precise control and monitoring of the inverter.

Digital input and output: There are 6 digital inputs (1 of which is a pulse input), 1 digital output and 2 relay outputs, which can easily interact with other devices for digital signals and realize various control logics.

Safety function: It has the "safe torque off" (STO) function, complies with the SIL 2 (EN 61508) standard, and safety-related control can be achieved through digital input.

Communication interface: It integrates the RS485 interface and supports USS and Modbus RTU communication protocols, which is convenient for communication and networking with other devices. In addition, it is also equipped with a USB interface (Mini-B type) and a memory card slot (supports MMC or SD card) for local debugging, data storage and transmission.

Speed control range: The speed control range is 0-650Hz, which can meet the requirements of motor speed control in various application scenarios.

Control mode: It adopts V/f control, sensorless vector control and other methods. The appropriate control mode can be selected according to different application requirements to achieve efficient and precise control of the motor.