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Home > Electrical & Electronics > Electrical Control System > INDRAMAT DKC02.1-040-7-FW DKC Drive Controller

INDRAMAT DKC02.1-040-7-FW DKC Drive Controller

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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guizhou

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Operating Temperature -20℃~+55℃

Relative Humidity 5%~95% (non-condensing)

Storage Temperature -40℃~+70℃

Dimensions 180mm × 150mm × 250mm

I. Overview

INDRAMAT DKC02.1-040-7-FW is a compact digital servo drive belonging to the DKC series of servo drive products, with its core positioning as "a core drive unit in the field of industrial automation that provides high-precision speed, position, and torque control for small and medium-power servo motors".

As a drive device specially designed for precision motion control, this product is widely used in scenarios with extremely high requirements for "control accuracy, response speed, and operational stability", including high-end CNC machine tools (e.g., axis control of vertical machining centers, feed drive of CNC lathes), automated production lines (e.g., robot joint drive, positioning of precision conveying equipment), electronic manufacturing equipment (e.g., semiconductor packaging machines, PCB drilling machines), and special machinery (e.g., tension control of printing machines, precision transmission of medical equipment). It undertakes the full-process core tasks of "receiving instructions from upper-level controllers (such as PLCs and motion controllers) - real-time adjustment of motor current/voltage/frequency - driving servo motors to accurately execute motion trajectories - collecting motor feedback signals (such as encoder data) - realizing closed-loop control and abnormal protection".

With the core advantages of "high-precision closed-loop control + compact structural design + industrial-grade high reliability + flexible adaptation capability", the DKC02.1-040-7-FW can not only solve the four major pain points of traditional drive devices: "insufficient control accuracy (e.g., large positioning errors)", "response lag (e.g., instability under dynamic loads)", "poor environmental adaptability (e.g., frequent failures under high temperature/strong interference)", and "weak compatibility (e.g., difficulty in adapting to multi-brand motors)", but also be compatible with mainstream industrial buses such as CANopen and PROFIBUS-DP, building an integrated motion control solution of "upper-level control + precision drive + servo execution". Through vector control algorithms, high-performance current loop adjustment, and full-link anti-interference design, the device achieves a position control accuracy of ≤±0.001mm (when matched with a 17-bit encoder), a speed fluctuation of ≤0.1% (at rated speed), and a Mean Time Between Failures (MTBF) of ≥50,000 hours. This ensures the continuous and stable operation of precision manufacturing equipment and reduces production interruption losses caused by drive failures (the loss from a single shutdown of a high-end machine tool can reach tens of thousands of yuan per hour).

II. Technical Parameters

(I) Basic Electrical Parameters

Category	Specific Parameters
Rated Output Power	4kW (suitable for small and medium-power servo motors, meeting the power requirements of most precision transmission scenarios)
Rated Output Current	Continuous current: 12A; Peak current: 36A (strong short-term overload capacity, suitable for scenarios with dynamic load fluctuations)
Input Power Supply	Three-phase AC 380-480V (±10% fluctuation), 50/60Hz (wide voltage and frequency design, compatible with global industrial power grids)
Control Power Supply	DC 24V (±15% fluctuation), used for power supply of the drive's logic circuit and external control signals
Power Factor	≥0.95 (under rated load, high power utilization efficiency, reducing power grid losses)
Efficiency	≥94% (maintains high efficiency even at high-power output, reducing self-heating)

(II) Control Performance Parameters

Category	Specific Parameters
Control Modes	Position control, speed control, torque control (the three modes can be switched via parameters, adapting to different application scenarios)
Position Control Accuracy	≤±0.001mm (when matched with a 17-bit absolute encoder, meeting precision positioning requirements, such as electronic component assembly)
Speed Control Range	0-3000rpm (suitable for motors with different speed requirements, compatible with low-speed stable operation and high-speed response scenarios)
Speed Fluctuation	≤0.1% (at rated speed, high operational stability, reducing machining errors, such as ensuring the cutting accuracy of machine tools)
Response Time	Current loop response time ≤100μs; Speed loop response time ≤1ms (fast dynamic response, suitable for sudden load changes)
Encoder Interface	Supports incremental encoders (e.g., 1024-line) and absolute encoders (e.g., EnDat 2.2 protocol)

(III) Physical and Environmental Parameters

Category	Specific Parameters
Overall Dimensions	Approximately 180mm (length) × 150mm (width) × 250mm (height) (compact design, suitable for dense installation in control cabinets)
Weight	≤5kg (lightweight, easy to install and maintain)
Operating Temperature	0℃~40℃ (normal working conditions); Wide-temperature model optional: -20℃~+55℃ (suitable for extreme environments, such as outdoor equipment)
Storage Temperature	-40℃~+70℃ (meeting the requirements for transportation and long-term idle storage)
Relative Humidity	5%~95% RH (non-condensing, compliant with IEC 60068-2-3 standard, suitable for humid workshop environments)
Protection Level	IP20 (board-level protection, must be installed in a closed control cabinet for dust prevention and anti-misoperation)
Electromagnetic Immunity	Compliant with EN 55022 Class A and EN 61000-6-2 standards (resisting interference from frequency converters and motors in industrial sites)

III. Functional Features

(I) High-Precision Closed-Loop Control, Adapting to Precision Motion Scenarios

Optimization of Vector Control Algorithm

It adopts the Field-Oriented Control (FOC) vector control technology, which can accurately decompose the motor stator current into excitation current and torque current, realizing independent and precise control of motor torque, speed, and position. For example, in the feed axis control of CNC machine tools, even if the load (such as cutting resistance) changes dynamically, the drive can ensure stable motor speed by adjusting the torque current in real time, reducing the dimensional error of processed parts.

Multi-Loop Control Coordination

It has a built-in three-loop nested control structure consisting of a current loop, a speed loop, and a position loop. The current loop (innermost loop) is responsible for quickly suppressing current fluctuations, the speed loop (middle loop) ensures stable rotation speed, and the position loop (outer loop) achieves high-precision positioning. The response times of the three loops are optimized layer by layer, adapting to the full-scenario motion requirements from "high-speed start-stop" to "micro-displacement adjustment".

Encoder Adaptive Adaptation

It supports the access of various encoder signals such as incremental and absolute encoders. The encoder type and resolution (e.g., 17-bit absolute encoder) can be automatically identified through parameter configuration, without the need for additional hardware modifications, simplifying the adaptation process with servo motors of different brands.

(II) Compact Design and Flexible Integration, Saving Installation Space

High-Density Integrated Architecture

The power module, control module, and interface circuit are integrated into a compact housing. Its volume is reduced by approximately 30% compared with traditional drives of the same power, enabling multi-axis drive in a narrow control cabinet (e.g., installing 4-6 drives simultaneously to control multiple axes of a machine tool), thus saving equipment floor space.

Rich Communication Interfaces

It is equipped with CANopen and PROFIBUS-DP industrial bus interfaces, supporting seamless communication with mainstream PLCs (such as Siemens S7-1200/1500 and Mitsubishi Q series) and motion controllers. This realizes parameter configuration, status monitoring, and instruction issuance of the drive by the upper-level computer. At the same time, it provides analog interfaces (0-10V speed reference, 4-20mA torque reference) and digital I/O (16-channel input / 8-channel output), adapting to traditional relay control and analog control scenarios.

Modular Expansion Capability

It supports external expansion modules such as brake units (adapting to the energy consumption of motor emergency stop) and filters (enhancing anti-interference capability). Users can flexibly select and configure modules according to actual needs, avoiding cost waste caused by functional redundancy.

(III) Industrial-Grade High Reliability, Adapting to Complex Working Conditions

Full-Link Fault Protection

It has built-in multiple protection functions such as overcurrent, overvoltage, undervoltage, overload, overheating, motor stalling, and encoder failure protection. For example, when the motor load exceeds 150% of the rated value, the drive will cut off the output and alarm within 10ms to prevent the motor and drive from being burned; when the ambient temperature exceeds 40℃, it will automatically operate with derated capacity (power reduced by 10%/℃), ensuring stable operation of the equipment in high-temperature workshops (such as the rolling mill control room of an iron and steel plant).

Enhanced Anti-Interference Design

The power supply terminal is equipped with a two-stage EMI filter to suppress power grid spike pulses (±2kV) and harmonic interference; the control circuit adopts optocoupler isolation technology (isolation voltage ≥2kV DC) to avoid misoperation of control instructions caused by external signal interference; the grounding design complies with EN 61000-6-3 standard, further reducing the impact of electromagnetic radiation on surrounding equipment.

Selection of Long-Life Components

The power module adopts IGBT chips (switching frequency 8kHz, strong temperature resistance); the capacitors are industrial-grade long-life electrolytic capacitors (service life ≥10,000 hours / 40℃); the key connectors use gold-plating technology (contact resistance ≤10mΩ), reducing the risk of failures caused by component aging.

(IV) Convenient Operation, Maintenance and Parameter Configuration, Reducing Usage Costs

Visual Status Monitoring

The panel is equipped with a 7-segment digital display and 8 LED indicators, which display the drive's operating status in real time (e.g., "00" indicates standby, "r01" indicates operation) and fault codes (e.g., "F02" indicates overcurrent, "F05" indicates overheating). Maintenance personnel can quickly judge the equipment's working condition and conduct preliminary troubleshooting without connecting to a computer.

Software Configuration Tool

It supports parameter configuration, fault diagnosis, and firmware upgrade through Bosch Rexroth's "IndraWorks" software. The software has built-in parameter templates (such as "CNC machine tool feed axis" and "robot joint"), and users can directly call the templates to quickly complete parameter settings, shortening the commissioning cycle (improving efficiency by 60% compared with traditional manual commissioning). At the same time, it supports offline simulation to verify the control logic when the equipment is not in operation, avoiding equipment damage caused by commissioning errors.

Fault Log Storage

It can automatically record the latest 50 fault information (including fault codes, occurrence time, and current/voltage/speed data at the time of the fault). After maintenance personnel read the logs through the software, they can trace the root cause of the fault (e.g., whether frequent overload is caused by incorrect load calculation), realizing targeted maintenance.

IV. Common Faults and Solutions

(I) Startup Faults: Drive No Response / Failure to Start

Fault Phenomenon	Possible Causes	Solutions
No display on the panel, power indicator not on	1. Input power not connected; 2. Power fuse burned out; 3. Control power failure	1. Check whether the three-phase AC 380V power wiring (L1/L2/L3) is loose, and use a multimeter to measure whether the voltage is normal; 2. Open the drive housing, check the power module fuse (model 5A/250V), and replace it if burned out; 3. Measure the voltage of the DC 24V control power supply; if abnormal, check the external power adapter or the drive's internal power board.
Panel displays "rdy" (standby) but cannot receive startup instructions	1. Communication interface not connected or incorrectly configured; 2. Digital startup signal not triggered; 3. Drive in fault lock state	1. Check the CANopen/PROFIBUS-DP bus cables (e.g., whether the terminal resistor matches 120Ω), and test the communication connection through IndraWorks software; 2. Use a multimeter to measure the voltage of the digital input terminal (e.g., DI1 startup signal) to confirm whether the external PLC outputs a 24V signal; 3. Press and hold the panel "Reset" button for 3 seconds to release the fault lock; if it still does not work, check for unresolved fault codes.

(II) Operation Faults: Motor Vibration / Unstable Speed / Large Positioning Error

Fault Phenomenon	Possible Causes	Solutions
Motor vibrates during operation with abnormal noise	1. Encoder signal interference or loose wiring; 2. Mismatched speed loop parameters; 3. Eccentric connection between motor and load	1. Check whether the encoder cable is laid in parallel with the power cable (they should be routed separately with a spacing of ≥10cm), reinsert the encoder plug (ensure good pin contact), and use an oscilloscope to detect whether the encoder signal waveform is stable; 2. Optimize the speed loop proportional gain (P200) and integral time (I201) through IndraWorks software, and gradually increase the P value until the vibration disappears; 3. Check the coaxiality of the motor shaft and the load shaft (error ≤0.1mm), and adjust the installation position of the coupling.
Speed fluctuation exceeds 0.5% (at rated speed)	1. Excessive load fluctuation; 2. Unoptimized current loop parameters; 3. Unstable power supply voltage	1. Check whether the load is jammed (e.g., insufficient lubrication of machine tool guide rails), clean up foreign objects and add grease; 2. Enable the "load adaptation" function (parameter P150=1) in IndraWorks software, and the drive will automatically optimize the current loop parameters; 3. Measure whether the input power supply voltage fluctuation exceeds ±10%; if so, install a voltage stabilizer or UPS.
Positioning error exceeds ±0.01mm (large deviation between target position and actual position)	1. Insufficient position loop parameters; 2. Insufficient encoder resolution; 3. No backlash compensation	1. Increase the position loop proportional gain (P210), test after increasing by 10% each time, and avoid oscillation caused by excessively high gain; 2. If a 1024-line incremental encoder is used, upgrade to a 17-bit absolute encoder (e.g., EnDat 2.2 protocol); 3. Set the backlash compensation value (parameter P220) through IndraWorks software, measure the forward and reverse positioning error of the motor, and input the compensation value (e.g., if the error is 0.005mm, set the compensation value to 0.005).

(III) Protection Faults: Drive Alarms and Shuts Down (Displays Fault Code)

Fault Code	Fault Type	Possible Causes	Solutions
F02	Overcurrent Protection	1. Motor winding short circuit; 2. Power module damage; 3. Current detection circuit fault	1. Disconnect the motor wiring, use a multimeter to measure the three-phase winding resistance of the motor (they should be equal normally, with a deviation ≤5%); if there is a short circuit, repair or replace the motor; 2. Turn off the power, open the drive housing, check whether the power module (IGBT) is burned (blackened or cracked appearance), and contact professionals for replacement if damaged; 3. Check the wiring of the current sensor (Hall element), and reinsert and fix it if loose.
F05	Overheating Protection	1. Ambient temperature exceeds 40℃; 2. Cooling fan failure; 3. Poor drive ventilation	1. Measure the temperature inside the control cabinet; if it exceeds 40℃, install an axial fan (air speed ≥2m/s) or air conditioner; 2. Check whether the cooling fan on the top of the drive is rotating; if not, replace the fan (model 12V/0.5A); 3. Clean the dust on the drive's heat sink (blow with compressed air), and ensure that a ventilation space of ≥5cm is reserved around the drive.
F08	Encoder Fault	1. Encoder cable breakage; 2. Mismatched communication protocol between encoder and drive; 3. Internal encoder damage	1. Check whether the encoder cable (e.g., EnDat cable) is broken, replace the cable and rewire; 2. Confirm the encoder protocol setting (parameter P300, e.g., "1" corresponds to EnDat 2.2) in IndraWorks software, and keep it consistent with the motor encoder protocol; 3. Disconnect the encoder, use an oscilloscope to detect the output signal; if there is no waveform, replace the encoder.