SIEMENS CU240E-2 PN 6SL3244-0BB12-1FA0 Product Description

Overview

SIEMENS CU240E-2 PN 6SL3244-0BB12-1FA0 is a SINAMICS G120 control unit, type CU240E-2 PN, used as the drive controller for Siemens SINAMICS G120 modular frequency converters. The control unit connects to a compatible G120 power module, processes command and feedback signals, runs motor control algorithms, and communicates with the upper-level automation system. The PN version supports PROFINET and EtherNet/IP communication for PLC-based drive control, monitoring and diagnostics. It is mounted on the power module or control cabinet arrangement and used as a replacement control spare in existing SINAMICS G120 drive installations.

Features

SIEMENS CU240E-2 PN operates from DC 24 V supplied through the power module, or from an external DC 20 to 29 V supply. Maximum power consumption is 0.50 A, and power loss is 5.50 W. Communication interfaces are PROFINET and EtherNet/IP, enabling connection to Siemens or compatible PLC networks, HMI or drive supervision systems.

The unit provides 6 standard digital inputs, with switching level 0 to 1 at 11 V and 1 to 0 at 5 V. It includes 1 fail-safe digital input, which uses two standard digital inputs in the fail-safe configuration. Digital outputs comprise 2 relay changeover contacts. The analog or digital inputs are 2 differential inputs, and analog outputs are 2 non-isolated outputs. Signal cable conductor cross-section is 0.05 to 1.50 mm², corresponding to AWG 28 to AWG 16.

Supported closed-loop control techniques include V/f linear, square-law or parameterizable control, V/f with flux current control, V/f ECO linear or square-law, sensorless vector control, and encoderless torque control. Encoder vector control and encoder torque control are not supported on this CU240E-2 PN unit. Operating ambient temperature is -10 to 55 degrees Celsius, storage temperature -40 to 70 degrees Celsius, and maximum operating relative humidity 95 percent. Protection rating is IP20 / UL open type. Net weight is 0.49 kg, and dimensions are 73.0 mm wide, 199.0 mm high and 46.0 mm deep. Compliance standards listed are CE, UL, cUL, RCM and SEMI F47.

Specs

Brand: SIEMENSProduct family: SINAMICS G120Model: CU240E-2 PNOrder number: 6SL3244-0BB12-1FA0Product type: G120 converter control unit Operating voltage: DC 24 V via power module External supply range: DC 20 to 29 VMaximum power consumption: 0.50 APower loss: 5.50 WCommunication: PROFINET, EtherNet/IPStandard digital inputs: 6Digital input switching level 0 to 1: 11 VDigital input switching level 1 to 0: 5 VFail-safe digital inputs: 1, using two standard digital inputs Digital outputs: 2 relay changeover contactsAnalog or digital inputs: 2 differential inputsAnalog outputs: 2 non-isolated outputsSignal conductor cross-section: 0.05 to 1.50 mm², AWG 28 to AWG 16Control modes: V/f linear, square-law, parameterizable; V/f with FCC; V/f ECO; sensorless vector; encoderless torque control Encoder control: Not supported for vector control or torque control Operating temperature: -10 to 55 degrees CelsiusStorage temperature: -40 to 70 degrees CelsiusMaximum operating humidity: 95 percentProtection rating: IP20 / UL open typeNet weight: 0.49 kg, 1.08 lbDimensions: Width 73.0 mm, height 199.0 mm, depth 46.0 mmCompliance: CE, UL, cUL, RCM, SEMI F47CE marking: Low-voltage directive 2014/35/ECProduct status: Siemens SINAMICS G120 replacement control unit for existing drive installations

Principle

SIEMENS CU240E-2 PN is the control and communication layer of the modular G120 drive. It receives startup, speed reference, direction, reset and other command signals from the PLC or operator panel through digital inputs, analog inputs or fieldbus communication. The control unit executes the selected V/f, sensorless vector or encoderless torque control algorithm, calculates the required motor output command, and exchanges this information with the G120 power module. The power module then supplies the controlled voltage and frequency to the connected motor.

The PROFINET or EtherNet/IP interface exchanges process data, setpoints, actual values, status words, fault messages and diagnostics with the upper-level controller. Relay outputs can signal drive status, fault or running state to external contactors, indicators or panel circuits. Analog outputs can reproduce selected drive or motor actual values for external metering or monitoring. The control unit must be matched to the compatible G120 power module, motor rating, firmware version, communication configuration, terminal wiring and safety input configuration; firmware and parameter settings should be restored or checked during replacement to preserve the original drive behavior.

Applications

SIEMENS CU240E-2 PN 6SL3244-0BB12-1FA0 is used with SINAMICS G120 drives in industrial machinery, production lines, pumps and fans, compressors, conveyors, material handling, packaging machines, machine tools, textile machinery, food and beverage equipment, process equipment, water and wastewater, utilities, HVAC, agitators, mixers, mills and general speed-controlled motor applications. It supports PLC-controlled motor speed regulation, process control, drive monitoring and diagnostic communication through PROFINET or EtherNet/IP. In existing G120 installations originally equipped with this control unit, it serves as a direct replacement drive controller spare matched to the original power module, wiring, communication network and parameter configuration.