Description
Core Product Summary
The Bosch Rexroth Indramat DKC01.3-040-7-FW is a digital drive controller from the DKC series, belonging to the ECODRIVE03 compact servo drive system. It supplies controlled three-phase power to compatible servo motors, primarily the MKD series.
The unit is rated for 40 A continuous current with a DC-bus nominal voltage of 700 V. It operates from a three-phase AC supply in the 380–480 V range at 50/60 Hz and requires a 24 V DC control supply. The “FW” designation indicates that firmware is required for operation. The controller is designed for IP20 cabinet installation.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Digital drive controller (EcoDrive) |
| Manufacturer | Bosch Rexroth Indramat |
| Model | DKC01.3-040-7-FW |
| Material Number | R911279426 |
| Series | DKC / ECODRIVE03 |
| Rated Current | 40 A |
| DC-Bus Nominal Voltage | 700 V |
| Input Voltage | 380–480 V AC, 50/60 Hz (three-phase) |
| Control Voltage | 24 V DC |
| Max. Output Frequency | 1000 Hz |
| Protection Class | IP20 |
| Compatible Motors | MKD series servo motors |
| Firmware | Required (supported types include SMT, SGP, FGP) |
| Approx. Weight | 5.1 kg |
| Approx. Dimensions | 410 × 80 × 250 mm |
Engineering Selection Highlights
- 40 A continuous current rating suitable for medium-power servo axes.
- 700 V DC-bus design matched to 380–480 V AC supply systems.
- Part of the ECODRIVE03 compact servo drive platform.
- Intended for use with Indramat/Rexroth MKD synchronous servo motors.
- Firmware-dependent functionality (FW designation).
- Compact IP20 construction for control-cabinet mounting.
- Legacy product; typically supplied as repaired, refurbished or surplus units.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Servo Motors | MKD series | Primary motor family for ECODRIVE03 |
| Supply Voltage | 380–480 V AC, 50/60 Hz, three-phase | Confirm mains voltage matches unit rating |
| Control Supply | 24 V DC | Separate control power required |
| Firmware | Must be loaded (SMT, SGP, FGP or equivalent) | Firmware determines operating modes and interfaces |
| Interface | Parallel / analog style (01 version) | Specific command interface depends on firmware and hardware option |
| Cooling & Installation | IP20 cabinet, adequate ventilation | Observe clearance and ambient temperature limits |
| System Platform | ECODRIVE03 | Part of the compact Indramat EcoDrive system |
DKC01.3-040-7-FW
DKC01.3-040-7-FW
Detailed Product Overview
The Bosch Rexroth Indramat DKC01.3-040-7-FW is a digital AC servo drive controller belonging to the DKC series and the ECODRIVE03 platform. The type designation breaks down as follows:
- DKC = Drive controller family
- 01 = Series / interface line
- .3 = Design version 3
- 040 = 40 A rated current
- 7 = 700 V DC-bus class
- FW = Firmware required
The controller accepts a three-phase AC input in the 380–480 V range at 50 or 60 Hz and generates a regulated three-phase output for permanent-magnet synchronous motors of the MKD series. The internal DC bus is rated at a nominal 700 V. Continuous output current is 40 A. A separate 24 V DC supply powers the control electronics (approximately 21 W).
Functionality is determined by the loaded firmware. Common supported firmware families include SMT, SGP and FGP. The “01” interface version typically provides parallel and analog command interfaces; other DKC variants exist with SERCOS, Profibus or multi-protocol options.
The unit is designed for installation in control cabinets (IP20). Approximate mechanical data are 410 × 80 × 250 mm and 5.1 kg. Continuous power dissipation is in the region of 180 W, so adequate ventilation and clearance are required. Maximum ambient temperature for nominal operation is 45 °C (reduced rating possible up to 55 °C).
As a legacy Indramat product, the DKC01.3-040-7-FW is no longer manufactured as a new series device. Units available on the market are generally repaired, refurbished or surplus. Correct firmware matching and parameterisation are essential for proper operation with the connected motor and higher-level control system.
Dimensions, Mounting & Connection Notes
The DKC01.3-040-7-FW is a compact drive controller intended for vertical mounting in control cabinets. Approximate dimensions are 410 mm width × 80 mm depth × 250 mm height, with a weight of about 5.1 kg. Power connections, motor output, control voltage and interface terminals follow the standard DKC01.3 layout. Adequate top and bottom clearance for cooling must be observed. The unit carries IP20 protection and is not suitable for unprotected environments.
Applications & System Role
The DKC01.3-040-7-FW functions as the power and control stage for one servo axis in an ECODRIVE03 system. It converts the AC supply into a controlled three-phase output for the connected MKD motor, executing speed, torque or position commands received from a higher-level motion controller or CNC. Typical applications include packaging machinery, printing equipment, assembly systems and material handling.
FAQ
What is the Rexroth DKC01.3-040-7-FW?
It is a Bosch Rexroth Indramat digital drive controller from the DKC / ECODRIVE03 series, rated 40 A with 700 V DC bus.
What is the rated current?
40 A continuous.
What supply voltage does it require?
Three-phase 380–480 V AC, 50/60 Hz, plus 24 V DC control supply.
Which motors is it designed for?
Primarily Indramat/Rexroth MKD series servo motors.
What does the “FW” in the type code mean?
Firmware is required; the drive’s operating characteristics are determined by the loaded firmware.
Is this drive still in production?
No. It is a legacy product; available units are typically repaired, refurbished or surplus.
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