1. Part Number Decoding

• DKC: Drive Controller（ECODRIVE03 series）

• 02: Series 02

• 3: Design Version 3

• 040: Rated Current 40 A

• 7: DC‑bus Nominal Voltage 700 VDC

• FW: Standard Firmware（factory‑installed）

2. Technical Specifications

Electrical Ratings

• Rated Input Voltage: 200–230 VAC ±10%, 3‑phase

• Control Voltage: 24 VAC

• Input Frequency: 50 / 60 Hz

• DC‑bus Nominal Voltage: 700 VDC

• Rated Output Current: 40 A（continuous）

• Peak Current: 40 A（1‑s）; 16 A @ 4 kHz; 12.5 A @ 8 kHz

• Max Output Frequency: 333.3 Hz

• Power Dissipation: 180 W（nominal）

• Max Energy Dissipation: 5.0 kWs

• DC‑bus Capacitance: 0.27 mF

• Peak Bleeder Power: 10 kW @ 850 VDC

Mechanical & Environmental

• Protection Class: IP20

• Dimensions (H×W×D): 360 × 65 × 261 mm

• Weight: Approx. 6.8 kg

• Ambient Temp (Operating): 0 °C to +45 °C（full load）; +55 °C（derated）

• Storage Temp: −20 °C to +80 °C

• Altitude: ≤1000 m（derated above）

• Cooling: Internal blower

Interfaces

• Communication: SERCOS（fiber optic）, RS232/485, Analog I/O

• Option Slot: For SERCOS, Profibus, or DeviceNet cards

3. Key Features

• ✅ High‑Performance Control: 40 A continuous current, 700 VDC bus for heavy‑duty servo applications

• ✅ Multi‑Motor Support: Controls synchronous/asynchronous motors, single/multi‑axis systems

• ✅ Industrial Reliability: IP20 enclosure, built‑in overload/short‑circuit protection

• ✅ Standard Firmware: FW = factory‑installed standard firmware（replaceable）

• ✅ ECODRIVE03 Compatibility: Fully compatible with Rexroth’s ECODRIVE03 drive package

4. Applications

• CNC machine tools, milling/turning centers

• Industrial robotics, material handling

• Packaging & printing machinery

• Textile equipment, plastic injection molding

• General automation: high‑speed, high‑precision motion control

5. Related Part Numbers

• DKC02.3-040-7-FM: Firmware modified

• DKC02.3-040-7-FU: Firmware updated

• DKC02.3-040-0-FW: 40 A, 400 VDC bus

• DKC02.3-100-7-FW: 100 A, 700 VDC bus