DKC02.3-040-7-FW | Rexroth Indramat ECODRIVE03 High Power High Voltage Bare Drive Original part number: R911279427
June 04, 2026

DKC02.3-040-7-FW | Rexroth Indramat ECODRIVE03 High Power High Voltage Bare Drive Original part number: R911279427

Product Introduction The Bosch Rexroth Indramat ECODRIVE03 series FW power base (without main control board and pre-installed firmware), three-phase AC380~480V high-voltage servo power unit, rated output 40Ams, suitable for 7.5~15kW MAC/MSM synchronous servo motors; it is necessary to install the MGP/SGP control card and write the VRS firmware before the entire machine can be powered on and operated; it is mostly used for spare parts replacement and maintenance of machine tools, packaging, and printing equipment.

Description

Model Explanation

DKC02.3: ECODRIVE03 Second Generation SERCOS Fiber Drive Hardware Platform

040: Rated Continuous Output Current 40Amps

7: High-voltage model, three-phase AC 380~480V input, DC bus rated 700VDC

FW: Bare Power Base, does not include the main control circuit board and driver firmware. Control functions are achieved through optional control cards. Technical Specifications

Main power supply: Three-phase AC380~480V ± 10%, 50/60Hz; Independent DC24V control power supply

DC bus: Rated DC700V, Overvoltage protection threshold 850VDC

Output specifications: Continuous rated 40Arms, Short-time peak 96A (240% overload 400ms), Output frequency 0~1000Hz

Built-in braking: Peak discharge power 10kW, High-frequency startup conditions require external braking resistor

Dimensions: W70×H270×D205mm, Total machine net weight 4.4kg

Environmental grade: IP20 cabinet installation, 0~45℃ full-load operation, >45℃ reduced-load use, Installation altitude ≤1000m

Compatible motors: MAC09, MAC11 series servo motors, Power 7.5kW~15kW

Interface and communication configuration

Power terminals: L1/L2/L3 three-phase incoming line, U/V/W motor power connection, Special connection terminals for external braking resistors

Encoder interface: Integrated aviation plug, Compatible with rotary transformers + TTL ABZ incremental dual-channel feedback

Slot positions: Top-mounted main control slot on the body, After installing MGP/SGP cards, DI/DO, ±10V analog quantities, pulse direction terminals are led out

Communication ports

1. RS232 debugging port (activated by mounting the card): IndraWorks parameter debugging, firmware burning

2. Standard dual-channel SERCOS optical interface, multi-axis optical ring network synchronous control

3. Slot can be optionally equipped with Profibus-DP, CANopen expansion communication subcards Core function

The bare base unit has no control program. The overall control logic is determined by the optional board card.

SGP card: Pure SERCOS optical fiber bus positioning control, multi-axis bus linkage dedicated.

MGP card: ±10V analog speed regulation + pulse position + SERCOS bus integrated, including integrated electronic gear, origin search, brake sequence control; standard configuration includes full protection for hardware faults such as overcurrent, overvoltage, undervoltage, overheating, encoder break, and phase loss. Applicable scenarios

Numerical control milling machine, printing machine spindle, automated packaging line, injection molding auxiliary machine, small and medium-sized robotic arms servo drive

Usage and maintenance

1.7 models with suffix "high voltage" strictly prohibit single-phase 220V power supply, and can only be connected to three-phase 380V industrial power supply

2. The bare base of FW cannot be debugged independently, it must be assembled with MGP/SGP main control card + corresponding version VRS firmware

3. For DKC02.3 full power range (020/030/040/100/200) MGP/SGP control card hardware is universal, when replacing spare parts, it is necessary to first check the original machine's firmware version

4. For equipment with frequent forward and reverse rotations and large energy feedback, it is necessary to connect external braking resistors to avoid overheating and damage of the built-in braking circuit


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