Bosch Rexroth DKC1.03-008-3-MGP-01VRS Servo Drive Controller | Replacement, Equivalent & Selection Guide
The Bosch Rexroth DKC1.03-008-3-MGP-01VRS is a compact, high-performance AC servo drive from the EcoDrive 03 (DKC) series, designed for precision motion control in industrial automation systems. This unit delivers reliable torque and speed regulation for servo motor axes in demanding manufacturing environments. Whether you are sourcing an original unit, seeking a compatible replacement, or evaluating equivalent alternatives, this guide provides the complete technical and selection reference.
Technical Specifications
- Manufacturer: Bosch Rexroth
- Series: EcoDrive 03 / DKC1.03
- Part Number: DKC1.03-008-3-MGP-01VRS
- Continuous Output Current: 8 A
- Input Voltage: 3-phase AC 200–480 V, 50/60 Hz
- Communication Interface: PROFIBUS-DP (MGP firmware)
- Firmware Version: VRS (standard motion firmware)
- Cooling: Forced air (integrated fan)
- Protection Class: IP20
- Weight: Approx. 4 kg
- Mounting: DIN rail / panel mount
- Compatible Motor Series: Rexroth MKD, MHD, MSK servo motors
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the DKC1.03-008-3-MGP-01VRS. Always verify electrical and firmware compatibility before substitution:
- DKC1.3-008-3-MGP-01VRS — Revised part number format; functionally identical
- DKC2.3-008-3-MGP-01VRS — EcoDrive 03 second generation; enhanced diagnostics, same current rating
- DKC3.3-008-3-MGP-01VRS — Third-generation EcoDrive; improved EMC performance
- DKC11.3-008-3-MGP-01VRS — Extended temperature range variant
- HCS02.1E-W0028-A-03-NNNN — IndraDrive Cs series; next-generation platform, requires firmware migration
- Siemens SINAMICS S120 (6SL3120-series) — Cross-brand alternative; requires full re-engineering of motor feedback and bus configuration
Note: Cross-brand replacements require engineering review of motor feedback type, bus protocol, and parameter migration. Contact our technical team for a compatibility assessment.
Why Choose the Original Model
- Drop-in compatibility: No re-parameterization required when replacing like-for-like within the DKC1.03 family
- Proven reliability: Widely deployed in automotive, packaging, and machine tool industries
- Rexroth ecosystem: Native integration with IndraWorks, IndraControl, and PROFIBUS networks
- Spare parts availability: Capacitors, control boards, and firmware cards are still serviceable
- Certified performance: CE, UL, and cUL listed for global deployment
Typical Applications
- CNC machine tool axis drives (X/Y/Z/spindle)
- Injection molding machine servo axes
- Packaging line pick-and-place systems
- Printing press register control
- Robotic welding and assembly cells
- Conveyor and indexing table drives
System Compatibility
- PLC / Controller: Rexroth IndraControl, Siemens S7 (via PROFIBUS), Beckhoff TwinCAT (via PROFIBUS master)
- Bus Protocol: PROFIBUS-DP (MGP firmware); baud rate up to 12 Mbit/s
- Motor Feedback: Resolver, EnDat 2.1, Hiperface (motor-dependent)
- Power Supply: Rexroth HVR/HVE regenerative power supply units
- Software: IndraWorks DS / IndraWorks MLD for commissioning and diagnostics
Selection Guide
Use the following parameters to confirm the correct DKC model for your application:
- Current rating: Match to motor continuous stall current × 1.2 safety factor. This unit: 8 A continuous.
- Firmware (MGP): Required for PROFIBUS-DP fieldbus control. If using SERCOS, select MGS firmware variant.
- Generation (DKC1 vs DKC2 vs DKC3): DKC1 is first-generation; DKC2/3 offer improved diagnostics. All share the same parameter structure.
- Power supply compatibility: Confirm HVR/HVE bus voltage matches your cabinet design.
- Motor series: Verify feedback type (resolver vs. encoder) matches motor nameplate data.
Quality Assurance & Sourcing
- All units at Konmask.com are sourced from verified industrial suppliers and authorized distributors
- Each unit undergoes visual inspection and functional verification prior to dispatch
- Original Rexroth units ship with factory serial number and traceable documentation
- Refurbished units (where applicable) are clearly labeled and include a 90-day warranty
- We do not supply counterfeit or unmarked components
How to Order
- Confirm the exact part number from your machine’s electrical documentation or drive nameplate
- Add the unit to cart or contact us for bulk / project pricing
- Provide your shipping address and preferred freight method at checkout
- For urgent requirements, contact us directly for expedited sourcing
Lead time: In-stock units ship within 1–3 business days. Special-order units: 5–15 business days depending on availability.
Replacement & Compatibility FAQ
Q: Can I replace DKC1.03-008-3-MGP-01VRS with a DKC2.3-008-3-MGP-01VRS?
A: Yes, in most cases. The DKC2.3 is backward-compatible with DKC1.03 motor and bus wiring. Parameter backup and restore via IndraWorks is recommended.
Q: Is the MGP firmware the same as PROFIBUS?
A: Yes. MGP designates the PROFIBUS-DP communication firmware variant in the EcoDrive 03 series.
Q: Can this drive run without a Rexroth power supply?
A: No. The DKC1.03 requires a Rexroth HVR or HVE DC bus power supply unit. It cannot be powered from a generic DC bus.
Q: What is the difference between VRS and VRS-01?
A: VRS denotes the standard motion firmware version. Suffix variations (e.g., -01) indicate minor revision levels and are generally interchangeable.
Q: Do you offer repair services for faulty DKC1.03 units?
A: We can refer you to certified Rexroth repair centers. Contact us with your fault code and serial number for guidance.
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