Description
Product Introduction & Engineering Value
The DKC02.3-012-3-MGP-01VRS is an ECODRIVE Cs digital drive controller designed for servo applications requiring a 12 A drive stage and 300 V-class DC bus. The DKC02.3 family uses SERCOS communication and was intended for multi-axis machine-control applications.
This particular MGP version matters because the DKC02.3 family contains several current ratings. Rexroth documentation identifies 4 A, 8 A, 12 A, and 18 A MGP versions, so replacing a 12 A unit with another DKC02.3 without checking the complete type code is not acceptable engineering practice.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bosch Rexroth / Indramat |
| Product Family | ECODRIVE Cs |
| Drive Series | DKC02.3 |
| Full Reference | DKC02.3-012-3-MGP-01VRS |
| Drive Type | Digital servo drive controller |
| Rated Current | 12 A |
| DC-Bus Nominal Voltage | 300 V DC |
| AC Input | 380–480 V AC |
| Control Voltage | 24 V DC |
| Connected Load | 1.4 kVA |
| Continuous DC-Bus Power | 457 W |
| Peak DC-Bus Power | 1,469 W |
| Internal Bleeder Resistance | 100 Ω |
| Firmware | Multi Interface General Purpose |
| Firmware Version | 01 |
| Mounting | Vertical |
| Maximum Ambient Temperature | 45°C before applicable derating |
| Protection | IP20 |
| Altitude for Rated Data | 1,000 m |
The published product data lists 1.4 kVA connected load, 457 W continuous DC-bus power, 1,469 W peak DC-bus power, and 100 Ω internal bleeder resistance for this 12 A variant.
The DKC02.3 MGP family is specifically documented in Rexroth VisualMotion documentation, which lists the DKC02.3-012 alongside the 004, 008, and 018 versions as supported MGP drive controllers.
Field Application & the “Trench” Experience
A legacy packaging machine has three servo axes. One axis begins faulting during acceleration, and the maintenance team identifies the drive as a .3-012-3-MGP-01VRS.
The spare room contains a DKC02.3-018. Same family. Same general cabinet footprint. Wrong current rating.
The engineer checks the original rating plate, motor data, SERCOS configuration, firmware, and stored drive parameters before sourcing the exact 12 A unit. The correct replacement is installed, parameters are restored, and the axis is tested through controlled acceleration and deceleration.
That is the important distinction with legacy servo drives: family compatibility is not drive-rating compatibility.
Relevant applications include:
- Packaging-machine servo axes
- Assembly-machine positioning
- Material-handling servo systems
- Multi-axis machine control using SERCOS
- Legacy VisualMotion-based machinery
- ECODRIVE Cs applications using MGP firmware
Rexroth documentation explicitly identifies DKC02.3-004, -008, -012, and -018 MGP drives as supported EcoDrive Cs controllers in VisualMotion environments.
DKC02.3-012-3-MGP-010RS
Transparency SOP: QA & Testing
For New Surplus or Refurbished DKC02.3-012 units, the test procedure should be tied to the complete drive code.
Incoming inspection
- Verify the complete rating-plate designation.
- Confirm the 012 current rating.
- Check firmware identification.
- Inspect power terminals and SERCOS connectors.
- Check cooling surfaces and mounting hardware.
- Inspect for corrosion, contamination, or previous overheating.
Electrical and functional testing
- Apply the specified 380–480 V AC input through controlled test equipment.
- Verify the 24 V DC control supply.
- Confirm initialization and diagnostic status.
- Establish SERCOS communication using a compatible controller.
- Connect an appropriate servo motor.
- Verify enable and feedback operation.
- Test commanded motion at controlled speed.
- Check acceleration and deceleration response.
- Exercise fault and reset functions.
- Record diagnostic codes and measured operating values.
A supplier should state whether the unit was bench powered, communication tested, motor tested, or operated under representative load. Those are materially different levels of verification.
The Veteran’s Tech Trap Guide
⚠️ Check the final suffix character by character.
Your supplied designation is DKC023-012-3-MGP-010RS, while commonly documented references use .3-012-3-MGP-01VRS. The Rexroth type-code structure identifies 01 as the firmware version, V as standard firmware, and RS as the release-status field. Verify the physical nameplate before publishing or purchasing the exact part number.
PRO TIP: For an RFQ, provide a photograph of the complete rating plate. Do not manually normalize the type code unless the original label confirms the normalized version.
⚠️ Do not substitute the 18 A version.
DKC02.3 MGP drives are available in 4 A, 8 A, 12 A, and 18 A versions. The current rating is encoded directly into the type designation.
⚠️ SERCOS configuration matters.
The DKC02.3 is a SERCOS drive family. A replacement needs to fit the existing motion-control architecture, including controller, SERCOS configuration, motor, feedback, and drive parameters.
⚠️ Treat the DC bus as hazardous voltage.
A 300 V nominal DC bus is not a low-voltage circuit. Lockout/tagout, discharge verification, and the manufacturer’s service procedure should be followed before working inside the drive cabinet.
Dynamic FAQ
Q1. What is the DKC02.3-012-3-MGP-01VRS?
It is a Bosch Rexroth Indramat ECODRIVE Cs digital servo drive controller rated at 12 A with a 300 V nominal DC bus. It belongs to the DKC02.3 MGP family.
Q2. What does “012-3-MGP” mean?
In the Rexroth type code:
- 012 = 12 A rated current
- 3 = 300 V nominal DC bus
- MGP = Multi Interface General Purpose firmware
The following 01VRS portion identifies firmware version 01, standard firmware, and release status.
Q3. What input voltage does this drive use?
The documented DKC02.3-012-3-MGP-01VRS is specified for 380–480 V AC input with a 24 V DC control supply.
Q4. What motors can be used with the DKC02.3?
ECODRIVE Cs systems can operate with compatible Rexroth/Indramat servo motor families, with the exact motor-drive combination determined by the drive and motor data. Rexroth documentation lists motor families including MHD and MKD, among others, for EcoDrive 03 systems.
Q5. Is DKC02.3-012 interchangeable with DKC02.3-018?
No, not automatically. Both are MGP DKC02.3 variants, but they have different rated-current capacities. The 012 and 018 designations must be matched against the motor and application requirements.
Q6. Is the supplied “DKC023-012-3-MGP-010RS” the same as DKC02.3-012-3-MGP-01VRS?
The available documentation strongly indicates the latter is the standardized type-code format, but the physical nameplate should be treated as authoritative. The documented code separates 01 + V + RS after MGP.
Q7. How should New Surplus stock be authenticated?
Request photographs of the actual drive showing the complete rating plate, type code, serial number, firmware designation, connectors, and packaging. A New Surplus unit should be clearly distinguished from repaired or refurbished inventory.
Q8. What warranty should I request?
For refurbished stock, request written coverage for power-up, diagnostics, SERCOS communication, motor operation, and the specific load/function testing performed. A simple power-on warranty does not establish servo performance.
Start Chat
