Bosch Rexroth EFC 5610 Frequency Converter

## 💡 Product Introduction (Product Brief)

The **Rexroth EFC 5610** is the **high-end standard variable frequency drive (VFD)** series from Bosch Rexroth, serving as the successor and upgrade to the EFC 3610. While still maintaining a focus on cost-effectiveness, the EFC 5610 features significantly improved performance, incorporating **Sensorless Vector Control (SVC)** capabilities, which the EFC 3610 lacks.

This drive provides better low-speed torque and dynamic response than pure V/f drives, making it a reliable solution for slightly more demanding applications in the general machinery sector. It supports a wider power range than the EFC 3610, extending into higher power levels.

* **Manufacturer:** Bosch Rexroth

* **Target Applications:** General industrial applications requiring better performance than entry-level drives, such as material handling, HVAC systems, pumping/fan systems with energy saving requirements, and machinery demanding higher starting torque.

* **Key Design Feature:** Supports both **V/f Control** and **Sensorless Vector Control (SVC)**. Features an improved design for enhanced reliability and easier maintenance, including optional LCD operator panels.

## 📋 Product Parameters (Specifications)

The EFC 5610 series covers the low-to-high power range with three-phase input:

| Parameter Category | 3-Phase 200 VAC Input Models | 3-Phase 400 VAC Input Models |

| :--- | :--- | :--- |

| **Rated Output Power (Heavy-Duty)** | 0.4 kW to 18.5 kW | 0.75 kW to 90 kW |

| **Mains Voltage Range** | 200–240 V $\pm 10\%$ | 380–480 V (+10% / -15%) |

| **Control Technology** | SVC and V/f Control | SVC and V/f Control |

| **Speed Regulation Accuracy (SVC)** | $\pm 0.5\%$ of maximum speed | $\pm 0.5\%$ of maximum speed |

| **Start-up Torque (SVC)** | 150% at 0.5 Hz | 150% at 0.5 Hz |

| **Output Frequency Range** | 0 to 400 Hz | 0 to 400 Hz |

| **Overload Capacity** | 150% for 60 seconds (Heavy-Duty) | 150% for 60 seconds (Heavy-Duty) |

| **Protection Category** | IP20 | IP20 |

## ⚙️ Functions (Features)

The EFC 5610 offers a comprehensive set of features, bridging the gap between basic V/f control and full vector control drives:

* **Control Modes:** Provides the option for **SVC** for improved low-speed torque and better dynamic response compared to V/f modes.

* **Integrated Braking:** Built-in braking chopper is standard on 400 V models (4 kW and above), allowing connection of an external braking resistor for fast deceleration.

* **PID Control:** Enhanced **PID control** function for process regulation (e.g., flow, pressure) with multi-mode settings.

* **Communication:** Standard integrated **Modbus RTU** protocol via RS-485. Optional communication expansion cards may be available for common fieldbuses.

* **Fire Mode (Smoke Extraction):** Dedicated function for fire safety applications, allowing the drive to operate until failure in emergency situations.

* **Energy Optimization:** Features include motor auto-tuning, optimized flux control, and sleep/wake functions for pump/fan applications.

* **Operation:** Supports both fixed 5-digit LED display or optional removable LCD operator panel (keypad) for convenient programming and monitoring.

## 📏 Dimensions and Weight

Dimensions and weights vary based on the power rating (W x H x D in millimeters):

| Model Example (Partial P/N) | Rated Power (Heavy Duty) | Net Weight (Approx.) | Dimensions W x H x D (mm) |

| :--- | :--- | :--- | :--- |

| **EFC5610-2K20-3P4** | 2.2 kW (3-Ph) | 1.9 kg | 100 x 180 x 140 |

| **EFC5610-11K0-3P4** | 11.0 kW (3-Ph) | 7.3 kg | 160 x 300 x 205 |

| **EFC5610-37K0-3P4** | 37.0 kW (3-Ph) | 22.0 kg | 250 x 550 x 270 |

| **EFC5610-90K0-3P4** | 90.0 kW (3-Ph) | ~49 kg | 300 x 600 x 250 |

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