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Need to source or support the legacy Rexroth Indramat DKC01.1-040-7-FW Ecodrive controller? Get exact specs, critical diagnostics, and obsolescence sparing strategies.
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When an aging production line grinds to a halt due to a flashing fault code on a legacy servo drive, relying on standard OEM field service is no longer a viable strategy. The Bosch Rexroth Indramat DKC01.1-040-7-FW (part number R911265406) belongs to the vintage ECODRIVE01 series. This integrated unit combines both control electronics and the power supply section into a single, compact chassis designed to run MKD digital AC servo motors. Because this hardware is long obsolete, maintaining an active, verified sparing strategy is your only protection against extended line downtime.
Technical Specification Snapshot
Before acquiring a replacement unit from surplus stock, verify these critical electrical and physical parameters against your control cabinet design:
| Parameter | Value |
| Model Code | DKC01.1-040-7-FW |
| Rexroth Part Number | R911265406 |
| Series Type | ECODRIVE Series 01, Design 1 |
| Rated Output Current | 40 A |
| DC Bus Nominal Voltage | 700 V DC |
| Mains Input Voltage | 3-phase, 380 to 480 V AC, 50/60 Hz |
| Interface Option | 01 (Analog/Inverted Command Interface) |
| Firmware Type | Standard factory-loaded firmware (FWA-ECODRV-ASE) |
| Protection Rating | IP20 |
| Cooling Clearance | 80 mm minimum top/bottom |
| Weight / Dimensions | 4.4 kg / 360 mm x 210 mm x 65 mm |
Operational Reality & Sparing Strategy
Using an ABC analysis, the DKC01.1-040-7-FW is classified as a Class A critical asset. These drives operate with a fixed, non-reconfigurable firmware structure on physical EPROMs. When a drive fails on an active axis, you cannot simply flash a new program in the field—physical hardware replacement is required.
For manufacturing facilities utilizing these legacy drives, vendor consolidation provides no safety net. To mitigate high lead time variability associated with obsolete electronic components, maintain a 1:5 sparing ratio (one spare drive on-site for every five active units of the same model).
Not Recommended For:
Do not install this IP20-rated drive in washdown environments, food processing areas, or cabinets containing conductive dust. Without a secondary outer enclosure to maintain clean, dry airflow, high-voltage tracking across the 700 V DC bus terminals will cause immediate component failure
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