Bosch Rexroth DKC02.3-200-7-FW – ECODRIVE 03 Servo Drive for 400–480 V Motion Systems

The Bosch Rexroth DKC02.3-200-7-FW is part of the ECODRIVE 03 family, a workhorse servo drive you’ll typically find in packaging, printing, handling systems, and light machine tools. It’s designed for fast, repeatable positioning and speed control on 3-phase 400–480 V mains, and it pairs well with classic Indramat motors like MKD/MHD/MDD. One thing I appreciate is the modularity: the firmware module is replaceable and the command interface is plug-in, so you can match the drive to your control architecture without overhauling the whole cabinet.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 400–480 V AC mains (3-phase) – The “-7-” voltage code indicates suitability for industrial 50/60 Hz grids, common in EU/US factories.
• Modular command interface – Supports various control options via plug-in cards (e.g., SERCOS, analog ±10 V, fieldbus variants), making retrofits simpler.
• Replaceable firmware module (-FW) – Firmware is carried on a removable card for easier updates or matching across multiple drives.
• DC bus sharing – Drives can share regenerative energy via L+/L- for improved system efficiency in multi-axis lines.
• Integrated diagnostics – Clear drive status and fault readout help maintenance teams shorten troubleshooting time.
• Compact booksize format – Cabinet-friendly footprint with forced-air cooling; typically installs side-by-side for multi-axis machines.
• Motor compatibility – Works with common Indramat servo motors (e.g., MKD/MHD/MDD series) with corresponding feedback options.

Technical Specifications

Application Fields

From my experience, DKC02.3 units are a safe drop-in when you need predictable motion on legacy or mixed-generation lines. You might notice that OEMs keep them in packaging and converting equipment because of their reliability and the abundant spare parts base.

• Automated packaging (form-fill-seal, labeling, cartoners)
• Printing and converting (web handling, tension control with analog command)
• Material handling and robotics (pick-and-place, gantries)
• Light machine tools and assembly systems (indexing tables, feeders)

Advantages & Value

• Reliability – ECODRIVE 03 hardware is known to run for years with minimal drift; spare units are easy to commission thanks to the firmware card.
• Compatibility – Keeps older lines productive; supports typical field wiring and standard Indramat motor families.
• Cost control – Reuse your command interface and cables where possible; in many cases you avoid a full control upgrade.
• Supportability – Clear diagnostics and a large installed base reduce downtime and service learning curves.

Installation & Maintenance

• Cabinet and ventilation – Mount vertically on a conductive backplate in an IP54 (or better) enclosure; ensure clean airflow and space above/below for the fan exhaust.
• Wiring – Use shielded motor/feedback cables with proper grounding on both ends; keep power and signal routes separated to limit EMI.
• DC bus and braking – If sharing energy across axes, connect L+/L- per Rexroth guidelines; size external braking resistors for peak decel duty.
• Safety – Lock out/tag out mains before service; verify discharge of the DC bus (wait the specified time) and check with a meter.
• Routine care – Clean filters/fans periodically; inspect terminals for torque; back up parameters/firmware versions; update firmware only to validated revisions.
• Commissioning tip – Match the command module type and firmware to your PLC/NC. A quick parameter clone from a known-good unit typically shortens startup.

Quality & Certifications

• CE marked for EMC and Low Voltage compliance
• UL/cUL recognition for North American installations
• Manufactured to Bosch Rexroth quality standards; standard 12-month warranty