Siemens 6SL3244-0BB12-1PA1 SINAMICS G120 CU240E-2 DP Control Unit

Overview

SIEMENS SINAMICS G120

6SL3244-0BB12-1PA1 SINAMICS G120 CU240E-2 DP Control Unit

Provide PROFIBUS DP control, configurable terminal I/O and Safe Torque Off for a modular SINAMICS G120 drive.

At a Glance

Brand	Siemens
Model	6SL3244-0BB12-1PA1
Product Type	Drive control unit
Core Function	Control motor speed and torque
Application	Modular G120 inverter systems

PROFIBUS integration

The DP interface connects the drive to the automation controller.

Flexible terminal signals

Digital and analog inputs and outputs link local commands, feedback and actuators.

STO safety function

The control unit provides Safe Torque Off using a configurable fail-safe input.

Product Overview

6SL3244-0BB12-1PA1 is the CU240E-2 DP control unit for a SINAMICS G120 inverter assembled with a compatible power module. It processes motor control, PROFIBUS commands and local terminal signals in a separate control assembly.

Sensorless vector control and multiple V/f methods support motor applications without encoder feedback, while USB and a memory-card interface provide commissioning and parameter-handling access.

Ordering focus: Select the compatible power module separately and match the PROFIBUS project, terminal allocation and STO circuit to the drive installation.

Key Functions

Coordinate the drive over PROFIBUS DP

The fieldbus connection exchanges commands and operating data with the plant controller.

Configure local control signals

Six digital inputs, three digital outputs, two differential analog inputs and two non-isolated analog outputs support terminal-based control and feedback.

Apply sensorless motor regulation

V/f characteristics, flux current control, sensorless vector control and encoderless torque control cover the supported regulation methods.

Official Specifications

Power-Module Supply	24 V DC
External Supply Range	20 to 29 V DC
Maximum Supply Current	0.50 A
Power Dissipation	5.50 W
Network Interface	PROFIBUS DP
Standard Digital Inputs	6; switching levels 11 V rising and 5 V falling
Fail-Safe Input Allocation	1 F-DI formed from 2 standard digital inputs
Digital Output Arrangement	3 digital outputs, including 2 relay changeover outputs
Analog Inputs	2 differential inputs
Analog Outputs	2 non-isolated outputs
Motor Temperature Sensor Interface	PTC and KTY
Commissioning and Storage Interfaces	USB and SD/MMC card interface
Safety Function	Safe Torque Off (STO)
Control Techniques	V/f, V/f with FCC, V/f ECO, sensorless vector and encoderless torque control
Signal Conductor Cross-Section	0.05 to 1.50 mm², AWG 28 to AWG 16
Protection Class	IP20; UL open type
Dimensions	73 × 199 × 46 mm (W × H × D)
Unit Weight	0.49 kg

Official source:Siemens product manual and technical specifications

Frequently Asked Questions

Can I connect 6SL3244-0BB12-1PA1 directly to a PROFIBUS DP controller?

Yes, the control unit includes a PROFIBUS DP communication interface.

Does 6SL3244-0BB12-1PA1 support Flexible terminal signals for mobile equipment?

No, the control unit must be combined with a compatible SINAMICS G120 power module.

Can 6SL3244-0BB12-1PA1 regulate motor speed without an encoder?

Yes, sensorless vector control and several V/f methods are available.

Which safety function can I implement with 6SL3244-0BB12-1PA1?

The control unit provides Safe Torque Off through its configurable fail-safe input.

How many standard inputs remain when I use the fail-safe input of 6SL3244-0BB12-1PA1?

The fail-safe input uses two of the six standard digital inputs, leaving four for standard input functions.

Can I connect a motor temperature sensor to 6SL3244-0BB12-1PA1?

The terminal interface accepts PTC and KTY motor temperature sensors.

Which commissioning connections are available on 6SL3244-0BB12-1PA1?

USB and an SD/MMC card interface provide access for commissioning and parameter handling.

Compatibility & Ordering Notes

Before ordering 6SL3244-0BB12-1PA1: Match the DP communication variant, compatible power module and STO wiring to the existing drive, and select the operator panel separately where required.

Compatibility Checklist for 6SL3244-0BB12-1PA1

• Check the PROFIBUS address and controller drive configuration.
• Reserve two standard input terminals when assigning the fail-safe input.
• Select the supported motor-temperature sensor type in the drive parameters.
• Provide an enclosure suitable for the IP20 control unit and the selected power module.

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