Siemens 6SL3244-0BB12-1PA1 SINAMICS CU240E-2 DP Control Unit
01Product Identification
Siemens 6SL3244-0BB12-1PA1 is a SINAMICS G120 CU240E-2 DP E-type Control Unit. It integrates PROFIBUS DP, Safe Torque Off, standard and analog I/O, one fail-safe input function, motor-temperature monitoring, USB and SD/MMC interfaces. The Control Unit is supplied without a Power Module or operator panel.
02Engineering Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SL3244-0BB12-1PA1 |
| Product Type | SINAMICS G120 CU240E-2 DP E-type Control Unit |
| Communication | PROFIBUS DP |
| Safety Function | Safe Torque Off integrated |
| Standard Digital Inputs | 6 |
| Digital Outputs | 3 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Fail-Safe Input | Maximum 1, using two standard digital inputs |
| Motor Temperature Interface | PTC/KTY |
| Service Interfaces | USB and SD/MMC |
| Operating Voltage | 24 V DC via Power Module or 20-29 V DC external supply |
| Maximum Power Consumption | 0.50 A |
| Power Loss | 5.50 W |
| Operating Temperature | -10 to +55 degrees C |
| Degree of Protection | IP20 / UL open type |
| Power Module | Not included |
| Operator Panel | Not included |
03Functions
Operational Functions
- Provides control, communication, I/O and parameter management for a compatible SINAMICS G120 Power Module.
- PROFIBUS DP integrates the drive into a PLC network.
- Safe Torque Off is built into the E-type Control Unit.
- Six digital inputs, three digital outputs, two analog inputs and two analog outputs support local machine signals.
- PTC/KTY input supports motor-temperature monitoring.
- USB and SD/MMC interfaces support commissioning, parameter handling and service workflows.
Product Identity
- Manufacturer: Siemens
- Model: 6SL3244-0BB12-1PA1
- Product Type: SINAMICS G120 CU240E-2 DP Control Unit
04System Integration
- Select a Siemens-approved Power Module for the required supply voltage, motor power, overload duty and frame size.
- Confirm Control Unit firmware, commissioning software, PROFIBUS telegram, PLC hardware configuration and safety settings.
- Match motor data, temperature sensor, braking configuration, I/O voltage levels and terminal assignments.
- An operator panel is not included and must be selected separately if required.
- Do not substitute a PROFINET or another CU240E-2 communication variant without updating the network and project configuration.
05Applications
Typical Uses
- PROFIBUS-connected SINAMICS G120 variable-speed drives.
- Machine axes requiring integrated STO and local I/O.
- Pump, fan, conveyor, mixer and process-skid drives using a compatible Power Module.
- Replacement of an installed CU240E-2 DP with the same system configuration.
Selection Boundary
- Match the DP communication variant and required I/O.
- Confirm Power Module, firmware, motor and operator-panel compatibility.
- Preserve and validate STO wiring and safety parameters.
06Lifecycle
- The current Siemens product record lists this Control Unit as active. Reconfirm the status and firmware support when ordering.
- Back up the complete parameter set and record the firmware, Power Module, motor data, I/O assignments, PROFIBUS address and telegram.
- Save safety parameters and document the STO wiring before removal.
- A Control Unit change can affect firmware, communication, safety acceptance and Power Module compatibility.
- After installation, verify parameter download, motor identification, I/O, PROFIBUS, STO, temperature monitoring, alarms and drive direction.
FAQFrequently Asked Questions
What is Siemens 6SL3244-0BB12-1PA1?
It is a SINAMICS G120 CU240E-2 DP Control Unit with PROFIBUS DP, integrated STO and onboard I/O.
Is a Power Module included?
No. Siemens specifies this article without a Power Module and without an operator panel.
What I/O is integrated?
The unit provides six digital inputs, three digital outputs, two analog inputs and two analog outputs, with a maximum of one fail-safe input function.
Which motor-temperature sensors are supported by the interface?
The product description identifies a PTC/KTY motor-temperature interface.
Can a different CU240E-2 communication version be substituted directly?
Not without reviewing the network, telegram, PLC project, firmware, safety configuration, I/O and Power Module compatibility.
What should be tested after replacement?
Verify parameter download, motor data, I/O, PROFIBUS communication, STO, temperature monitoring, alarms, direction and the complete drive sequence.
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