SIEMENS 6SL3244-0BB20-1PA0 Product Description

Overview

SIEMENS 6SL3244-0BB20-1PA0 is presented as a Siemens SINAMICS G120 control unit belonging to the CU240E-2 control unit family. The order number format follows the Siemens 6SL3244 CU240E-2 range used to pair with SINAMICS G120 power modules for variable-speed drive control and Safety Integrated functions. Public Siemens catalog records did not return a direct datasheet for the exact suffix 0BB20-1PA0; the description below conservively uses the confirmed CU240E-2 platform family and marks exact interface, I/O and firmware details as requiring verification against the control unit nameplate or Siemens order record.

Features

The CU240E-2 family provides extended I/O structure and integrated safety technology for SINAMICS G120 converters. Confirmed CU240E-2 platform references list 6 standard digital inputs, fail-safe digital inputs formed from standard inputs by parameterization, and 3 digital outputs. CU240E-2 versions can include PROFIBUS DP or RS485 USS Modbus RTU communication, while fail-safe DP versions support PROFIsafe on the PROFIBUS interface.

Standard CU240E-2 and CU240E-2 DP units include the Safe Torque Off safety function. Fail-safe CU240E-2 F and CU240E-2 DP-F versions add functions such as Safe Stop 1, Safely Limited Speed, Safe Direction and Safe Speed Monitoring, where applicable to the ordered version. The control unit operates with compatible SINAMICS G120 power modules such as PM240, PM250 or PM260, depending on the installed drive configuration.

Because the exact order number 6SL3244-0BB20-1PA0 was not confirmed in the public Siemens catalog located, the exact control unit designation, communication protocol, number and type of fail-safe inputs, analog input and output count, supply current, firmware version, hardware version and compatible power module list should be verified from the unit label, Siemens Industry Mall record or SINAMICS G120 operating manual.

Specs

Brand: SIEMENSDrive family: SINAMICS G120Product type: Control unit Order number: 6SL3244-0BB20-1PA0Platform family: CU240E-2Confirmed family I/O: 6 standard digital inputs; fail-safe inputs parameterized from paired standard inputs; 3 digital outputs on CU240E-2 family references Possible communication: PROFIBUS DP with PROFIsafe on fail-safe DP versions, or RS485 USS Modbus RTU, depending on exact ordered suffix Safety functions: Family includes Safe Torque Off; fail-safe versions may include SS1, SLS, SDI and SSM, subject to exact unit version Compatible power modules: PM240, PM250, PM260 per CU240E-2 platform documentation Control panel connection: Separate operator panel such as BOP-2 or IOP, if fitted; panel not included in control-unit order Exact hardware version: Unconfirmed Exact firmware version: Unconfirmed Exact supply voltage and current: Unconfirmed for this suffix; verify Siemens datasheet Enclosure protection: Family commonly listed IP20; verify exact unit label Product status: Legacy or spare SINAMICS G120 control unit for existing drive replacement

Principle

The SINAMICS G120 control unit commands the converter and stores the drive parameters for the connected power module. It receives operator or PLC commands through its fieldbus, digital or analog terminals, processes the speed, torque, positioning or safety-control requirements, and sends control signals to the power module that drives the connected motor. Status, fault and alarm information are returned through the terminals, communication interface or operator panel.

The CU240E-2 safety functions monitor drive state according to the configured safety application. STO removes torque from the motor to prevent active drive movement; extended fail-safe functions monitor braking ramp, speed limit, direction or speed message where the unit version supports them. Replacement should verify the exact control unit order number, communication protocol, fail-safe input configuration, installed power module, motor data, parameter backup, firmware compatibility, safety parameters and commissioning record before putting the drive into service.

Applications

SIEMENS 6SL3244-0BB20-1PA0 is intended as a replacement SINAMICS G120 control unit for existing Siemens variable-speed drive installations, such as conveyor systems, mixers, extruders, pumps, fans, compressors, packaging machinery, material handling, machine tools, production lines, process equipment, HVAC and general industrial machinery. It controls the connected G120 power module and motor, and supports local or PLC-based drive operation with the safety functions required by the original machine configuration. In existing CU240E-2 drive systems, the unit serves as a direct replacement control spare when the order suffix, communication connection, parameters and safety configuration match the original drive.