DKC03.3-100-7-FW | Rexroth Indramat ECODRIVE03 100A High Voltage Power Base
June 04, 2026

DKC03.3-100-7-FW | Rexroth Indramat ECODRIVE03 100A High Voltage Power Base

Product Introduction Leistritz ECODRIVE03 - The third-generation PROFIBUS-DP bus high-power bare power base, with FW definition featuring no master control board and no pre-installed firmware. Three-phase 380~480V high-voltage model, rated continuous output of 100Ams. Compatible with 22~30kW MAC/MKD/MHD series heavy-duty servo motors. Built-in cooling fan and pre-installed 0.5kW soft start resistor. Widely used for spindle replacement in machine tools, heavy-duty extrusion, and large multi-axis winding equipment.

Description

Model Explanation

DKC: ECODRIVE03 Full Series of AC Servo Drives

03.3: 03 = Native PROFIBUS-DP communication hardware platform, .3 = Third-generation optimized power version

100: Continuous rated output current 100Ams

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

FW: Empty power base, does not include MGP main control card, driver firmware needs to be separately selected and burned in Technical Specifications

Main power supply: Three-phase AC380~480V ±10%, 50/60Hz; Control circuit independently powered by DC24V (power consumption 26W)

DC bus: Nominal 700VDC, Overvoltage protection threshold 850VDC

Output capacity: Continuous 100Arms, Peak 240% overload short-time output, Maximum output frequency 1000Hz, Maximum output voltage 800V

Braking configuration: Built-in braking circuit with maximum output DC2A/40V. For heavy-load conditions, a large-power braking resistor must be externally connected; Built-in 24Ω/0.5kW soft-start resistor, Bus pre-charging 12~28A

Dimensions: Width 105mm × Height 360mm × Depth 261mm. Net weight of the entire machine 9.7kg. IP20 cabinet installation. Standard built-in cooling fan

Environmental conditions: Full-load operation at 0~45℃, Altitude ≤1000m, Pollution grade 2 industrial environment

Compatible motors: MKD09/10, MAC10/12, MHD09 high-power synchronous servo, Power range 22~30kW

Interface and communication configuration

Power terminals: L1/L2/L3 three-phase incoming lines, U/V/W motor power connection, External braking resistor terminals

Encoder aviation socket: Compatible with rotary transformers, TTL incremental ABZ encoder feedback

Top card slot: Install MGP-7 high-voltage main control card, Card body outputs DI/DO switch quantities, ±10V analog quantities, pulse direction instructions

Communication interfaces

1. RS232 debugging serial port (enable MGP card): IndraWorks parameter debugging, firmware download and burning

2. The body integrates PROFIBUS-DP bus interface, 03.3 version type native DP communication, does not support SERCOS

3. Card slot can be selected to expand CANopen sub-card Core function

The base only has inverter power hardware, and all motion control logic is implemented through the MGP-7 control card.

Control mode: ±10V analog speed regulation + pulse positioning + PROFIBUS bus three-axis control, supporting electronic gear synchronization, origin return to zero, and motor brake timing control.

Full hardware protection: overcurrent, overvoltage, undervoltage, power module overheating, encoder break, and inter-phase short circuit faults of output locking and stopping. Applicable scenarios

Large CNC lathe spindle drive, plastic and rubber extrusion main unit, heavy-duty printing unit, multi-axis cable winding production line, automated heavy-load handling equipment.

Operation and Maintenance

1. -7 High-voltage models must not be connected to three-phase 220V power supply. Only AC380~480V industrial power supply is allowed.

2. The FW base cannot be powered on and operated independently. It must be equipped with the corresponding MGP-7 main control card and the matching model firmware.

3. Frequent start-stop and large inertia loads must be externally connected with high-power external braking resistors to avoid overload and burnout of the built-in braking circuit.

4. Replacement of spare parts cannot be directly substituted with the 40A base. The hardware specifications of the power circuit are not universal.


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