SINAMICS G120D CU240D-2 DP-F Control Unit
| Sales | Phone/Whatsapp | |
| Jim Pei | [email protected] | +86 18020776782 |
| Model Number | 6SL3544-0FB21-1PA0 |
| Control supply voltage | 24 V DC nominal; 20.4-28.8 V DC |
| Unswitched 1L+ supply current | 1.2 A maximum |
| Switched 2L+ supply current | 1 A maximum |
| X01 connector current limit | 8 A, including daisy-chained loads |
| Setpoint resolution | 0.01 Hz, digital and serial |
| Fieldbus | PROFIBUS DP |
| Safety communication | PROFIsafe |
| Standard digital inputs | 6, programmable, non-isolated |
| Fail-safe digital inputs | 3, optionally parameterizable as safe inputs |
| Digital-input voltage limit | 30 V maximum |
| Digital-input low level | Less than 7.4 V |
| Digital-input high level | Greater than 15 V |
| Input current at 24 V | 3.5-6.3 mA |
| Minimum high-state input current | 1.6-3.0 mA |
| Pulse input channels | DI 1 (X07.2) and DI 3 (X08.2) |
| Pulse-input frequency | 32 kHz maximum |
| Digital outputs | 2, programmable, isolated |
| Digital-output supply | Switched 24 V DC |
| Digital-output load current | 0-0.5 A resistive; 0.5 A maximum total |
| Digital-output update time | 2 ms |
| Analog inputs | 2, programmable |
| Analog-input range | 0-10 V |
| Analog-input resolution | 12 bit |
| Analog-input current | 10 mA maximum |
| Encoder signal type | HTL bipolar |
| Encoder pulse count | 2048 pulses maximum |
| Encoder current | 100 mA maximum |
| Encoder cable length | 30 m maximum, shielded |
| I/O interface | M12 plug |
| Operating temperature | 0-55 °C |
| Storage temperature | -40 to +70 °C |
| Relative humidity | 95% maximum at 40 °C, noncondensing |
| Degree of protection | IP65 / UL Type 3 |
| Product standards | UL 508C; cUL, CE, RCM |
| Minimum Order Quantity | 1 Piece |
| Price | Contact for Jim |
| Packaging Details | Original new Factory Sealed |
| Delivery Time | 3–7 Days |
| Payment Terms | T/T |
| Shipping Method | DHL / FedEx / UPS / TNT |
| Supply Ability | Brand new, In stock |
Siemens 6SL3544-0FB21-1PA0 is the SINAMICS G120D CU240D-2 DP-F control unit for decentralized drive installations. It uses an external 24 V DC control supply and communicates over PROFIBUS DP. PROFIsafe supports the safety-related communication path. The interface includes standard and fail-safe digital inputs together with switched digital outputs. M12 plug connections suit the decentralized unit construction.
The 6SL3544-0FB21-1PA0 provides the drive-control interface between a compatible power module, field devices and the automation network. Its control modes include V/f techniques and sensorless vector operation. The required mode is selected to match the motor and machine duty. Safety integration must follow the configured drive system and validation procedure. This control unit belongs in a matched SINAMICS G120D assembly rather than being treated as a complete standalone inverter.
Coordinate a compatible G120D drive close to the machine, using plug-connected field signals and the selected motor-control mode.
Exchange drive commands and status with the automation system over the PROFIBUS DP network.
Include the DP-F control unit in the configured PROFIsafe safety system, with commissioning and validation appropriate to the drive application.
No. It is a control unit and must be paired with the compatible SINAMICS G120D power module and associated system components.
The stated configuration does not provide positioning functionality. Evaluate a control arrangement intended for positioning if that function is required.
No. This DP-F configuration uses PROFIBUS DP. Confirm the fieldbus variant before selecting a replacement.
No. The safety functions, communication configuration and machine-level validation must be completed for the entire application.
Select a supported V/f or sensorless vector method to suit the motor and load, then commission the matched drive assembly.
The unswitched 1L+ circuit supplies the control unit, encoder and fan, while switched 2L+ supplies the digital outputs. Keep these roles distinct when planning control-power switching.
Company was founded in Xiamen, Fujian, China, in 2005 with a team of only four people. At that time, we mainly served selected European and North American markets, supplying commonly requested industrial automation products from Siemens, Allen-Bradley and Bently Nevada. Although the business was still developing and we completed relatively few orders, this period helped us build essential product knowledge and international trade experience.
By 2017, our team had grown to approximately 30 people, and we had established a warehouse for in-stock automation components. Our business expanded across Europe, North America and Southeast Asia, while our product range grew from popular models to scarce and discontinued industrial automation parts. As our product knowledge and service experience increased, we completed nearly 20 orders per month on average.
Today, Company serves customers worldwide with a professional team of approximately 60 people. Our warehouse holds a broad selection of industrial automation components, including popular products, hard-to-find parts and discontinued models. We now complete more than 30 orders per month, with an average monthly transaction value of approximately USD 3 million. We have established long-term partnerships with nearly 30 customers from different countries and welcomed almost 40 international customers to visit our company.
Since our company was founded, we have served every customer with sincerity and professionalism. Our prices may not always be the lowest, but we earn long-term trust through quality products, dependable after-sales support, honest condition reporting, timely communication and responsible delivery. Our goal is to build lasting partnerships rather than pursue one-off transactions.
Our team members have an average of more than 10 years of industry experience. We have worked with customers worldwide, including those from India, Germany, Sweden, Italy, Russia, Venezuela, Israel, and many other countries. Throughout our careers, we have collectively completed over 3,000 orders and established long-term business relationships with customers across nearly 30 countries.
We can often identify a product’s manufacturer, series, configuration, and function from its model number or nameplate photo. We also understand how revisions, firmware, and specifications affect compatibility and whether an alternative model can be used safely.
An Indian customer urgently needed a discontinued control module after several suppliers reported no stock. We identified its exact revision and function from the nameplate, checked compatible alternatives, and contacted factory and warehouse channels to locate matching inventory. After installation, the customer confirmed that the module operated correctly and later asked us to source additional spare parts.
Our team treats every inquiry sincerely and answers every question patiently. Even for complex requests, we verify and respond to each detail instead of providing a rushed or uncertain answer.
A German customer sent a mixed list of automation products and asked repeated questions about revisions, condition, photos, and delivery. Our team organized the requirements, checked every item, and replied point by point. The customer said our detailed communication made the purchasing decision easier and continued sending us new inquiries.
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