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Home > Electrical & Electronics > Electrical Control System > INDRAMAT MKD041B-144-KG1-KN MKD Synchronous Motors

INDRAMAT MKD041B-144-KG1-KN MKD Synchronous Motors

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℃ ~ 80℃

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

Storage Temperature -40℃ ~ 100℃

I. Overview

The INDRAMAT MKD041B-144-KG1-KN is a high-performance digital AC synchronous servo motor belonging to the MKD series. It is specifically designed for scenarios in the industrial automation field that have stringent requirements for "high-precision motion control, high-reliability operation, and strong environmental adaptability". Its core positioning is "a core drive component that provides stable power output and precise motion execution for various precision mechanical equipment".

With its excellent dynamic performance, precise control capability, and reliable structural design, this motor is widely used in fields such as electronic manufacturing (e.g., chip mounting equipment, PCB drilling machines), food packaging (e.g., fully automatic packaging machines, metering and filling equipment), printing and packaging (e.g., high-speed printing machines, film slitting machines), textile and leather (e.g., precision spinning machines, leather cutting machines), high-end machine tools (e.g., multi-axis linkage machining centers), and pharmaceutical machinery (e.g., pharmaceutical granulators, automatic tablet presses). In practical applications, it undertakes the key task of "receiving instructions from the servo driver, efficiently converting electrical energy into mechanical energy, and driving mechanical structures to complete precise position movement, speed adjustment, and torque output". At the same time, it transmits real-time operating status data back through the built-in feedback device and cooperates with the driver to realize closed-loop control, ensuring the precision and stability of equipment operation.

Compared with traditional asynchronous motors, the MKD041B-144-KG1-KN has core advantages such as "low torque ripple, high dynamic response, wide speed range, and strong environmental tolerance". It can effectively solve pain points in industrial production such as "large vibration during equipment operation, insufficient positioning accuracy, and high failure rate under complex working conditions", helping enterprises improve production efficiency and product quality, and reduce equipment maintenance costs.

II. Technical Parameters

(I) Dynamic Performance Parameters

Parameter Category	Specific Value	Description
Rated Continuous Torque	2.7 Nm	Torque that can be output for a long time in a static or stable operation state, meeting the regular load requirements of the equipment
Brake Holding Torque	2.2 Nm	The brake takes effect when power is off, providing stable braking force to prevent mechanical structures from sliding due to inertia
Rated Speed	3000 rpm	The maximum stable speed during normal operation, which can be flexibly adjusted within the range of 0-3000 rpm according to requirements
Torque Ripple	≤±0.5%	The fluctuation range of torque output during operation is extremely small, effectively reducing mechanical vibration and wear
Acceleration Performance		Fast dynamic response, capable of quickly completing start-stop and speed switching, improving equipment operation efficiency
Rated Power	9kW	Output power during long-term stable operation, meeting the power requirements of most precision equipment
Instantaneous Peak Power	15kW	Maximum power that can be output in a short time (usually within a few seconds), coping with instantaneous high-load conditions such as equipment startup and heavy loads

(II) Electrical Parameters

Parameter Category	Specific Value	Description
Rated Voltage	220V (AC)	Compatible with conventional industrial single-phase or three-phase power supply systems (requires matching with corresponding servo drivers)
Rated Current	20A	Operating current under rated power, ensuring stable operation of the motor with reasonable energy consumption
Winding Code	58	Special winding design optimizes the electromagnetic performance of the motor, improving efficiency and torque output stability
Feedback Device	Resolver	Real-time detection of motor rotor position and speed, with high precision and strong anti-interference ability, providing data support for closed-loop control

(III) Structural and Environmental Parameters

Parameter Category	Specific Value	Description
Flange Size	144mm	Compliant with DIN 42948 standard, facilitating standardized installation and connection with various mechanical equipment
Protection Class	IP65	Fully dust-proof and capable of withstanding low-pressure water spraying (e.g., water spraying for workshop cleaning), adapting to harsh working conditions such as dusty and humid environments
Operating Temperature Range	-20℃ ~ 80℃	Can operate stably in different environments such as cold outdoor areas and high-temperature workshops, with strong environmental adaptability
Storage Temperature Range	-40℃ ~ 100℃	Meeting the storage requirements for equipment transportation and long-term idleness, preventing damage to components due to sudden temperature changes
Insulation Class	Class F	The motor has excellent insulation performance, with a maximum allowable operating temperature of 155℃, reducing the risk of leakage and short circuit

III. Functional Features

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

Low Torque Ripple Design

With a torque ripple of ≤±0.5%, which is far superior to traditional motors (usually more than ±5%), the motor outputs extremely stable torque during operation. In vibration-sensitive scenarios such as optical lens grinding and semiconductor chip inspection, it can effectively avoid machining errors caused by torque ripple, improving product surface precision and inspection accuracy.

High Dynamic Response Capability

It only takes

Precise Feedback and Closed-Loop Control

A resolver is built in as the feedback device. Compared with ordinary encoders, it has stronger anti-electromagnetic interference ability and can still accurately detect the rotor position (with precision up to arc-minute level) and speed in high-interference environments such as machine tool processing and motor driving. Cooperating with the servo driver, it can realize triple closed-loop control of position, speed, and torque. For example, in multi-axis linkage machining centers, it can ensure the coordinated and consistent movement of each axis, improving the machining precision of complex parts.

(II) High-Reliability Structure, Adapting to Complex Industrial Environments

IP65 High Protection Class

The housing adopts a sealed design, which completely blocks dust intrusion and can withstand low-pressure water spraying (e.g., spray cleaning for regular workshop maintenance). In scenarios such as packaging equipment in flour mills and cleaning lines in food processing plants, the motor can still operate stably for a long time even in dusty and humid environments, reducing failures caused by dust and water vapor intrusion.

Built-In Overheat Protection

It integrates a thermistor protection device to monitor the motor winding temperature in real time. When the temperature exceeds the set threshold (usually close to 155℃ of Class F insulation level), it will immediately send a signal to the driver, triggering protective actions such as speed reduction and shutdown to prevent the motor from being burned due to overheating. In scenarios that require long-term continuous operation such as injection molding machines and drying equipment, it can effectively extend the service life of the motor.

Standardized Flange and Installation

The 144mm flange complies with the international DIN 42948 standard and is compatible with the installation interfaces of most mechanical equipment on the market. Whether for new equipment integration or motor replacement in old equipment, there is no need for major modifications to the mechanical structure, which reduces installation costs and time costs and improves equipment upgrading efficiency.

(III) Practical Additional Functions, Enhancing Operation and Maintenance Convenience

Power-Off Brake Function

Equipped with an electromagnetic brake that takes effect automatically when power is off, providing a braking torque of 2.2 Nm. In scenarios such as vertical lifting equipment (e.g., cargo lifting mechanisms in automated warehouses) and inclined conveyor lines, it can prevent heavy objects from sliding due to power failure, ensuring the safety of personnel and equipment; in precision positioning equipment, it can keep the mechanical structure stably at the target position, avoiding machining or inspection precision errors caused by inertial deviation.

Wide Temperature Adaptability

The operating temperature covers -20℃ ~ 80℃. Through special component selection (e.g., low-temperature resistant bearings, high-temperature resistant and aging-resistant cables) and structural design, it can operate normally in outdoor construction machinery in cold northern regions and production equipment in high-temperature workshops in southern regions, without the need for additional heating or heat dissipation devices, reducing equipment supporting costs.

IV. Common Faults and Solutions

(I) Startup Faults: Motor Fails to Start or Shuts Down Immediately After Startup

Fault Phenomenon	Possible Causes	Solutions
Motor has no response and no movement	1. Power supply not connected or abnormal voltage; 2. Servo driver failure; 3. Loose connection between motor and driver	1. Check the power supply lines (e.g., air switch, contactor), and use a multimeter to measure whether the voltage is within the normal range of 220V; 2. Check the driver fault code; if it shows "overvoltage", "undervoltage", "overload", etc., troubleshoot according to the driver manual; 3. Check the power line and signal line connectors between the motor and the driver, reinsert and fasten them to ensure good contact.
Motor shuts down immediately after startup, and the brake does not release	1. Brake power supply not connected; 2. Brake coil burned out; 3. Abnormal brake control signal from the driver	1. Check the dedicated brake power supply line (usually DC 24V) to confirm that the output of the power module is normal; 2. Disconnect the brake coil wiring, use a multimeter to measure the coil resistance (normally about several tens of ohms); if the resistance is infinite, it indicates that the coil is burned out and the brake needs to be replaced; 3. Check the brake control signal status through the driver software; if no signal is output, check the driver parameter settings (e.g., brake enable parameter) or contact technicians to repair the driver.

(II) Operation Faults: Unstable Motor Operation, Excessive Vibration, or Abnormal Noise

Fault Phenomenon	Possible Causes	Solutions
Severe vibration during operation with abnormal noise	1. Excessive torque ripple (exceeding ±0.5%); 2. Excessive coaxiality deviation between motor and load; 3. Bearing wear or insufficient lubrication	1. Check the servo driver parameters (e.g., torque compensation parameter); contact the manufacturer for calibration if necessary; 2. Stop the machine, remove the coupling, use a dial indicator to measure the coaxiality between the motor shaft and the load shaft (should be ≤0.1mm), adjust the equipment installation position, and recalibrate the coaxiality; 3. Disassemble the motor end cover, check whether the bearing is worn or stuck; replace the bearing if it is severely worn; add special motor grease (e.g., lithium-based grease) to ensure good bearing lubrication.
Unstable speed (fluctuates fast and slow)	1. Improper parameter setting of the driver speed loop; 2. Signal interference or failure of the feedback device (resolver); 3. Excessive load fluctuation	1. Optimize the speed loop proportional gain (P) and integral time (I) through the driver software, and adjust gradually until the speed is stable (operation by professionals required); 2. Check whether the resolver signal line is laid in parallel with the power line (they should be routed separately with a spacing of ≥10cm), add a shielding layer and ground it at one end; use an oscilloscope to detect the feedback signal waveform; replace the resolver if the waveform is disordered; 3. Check whether the equipment load is jammed or uneven (e.g., material accumulation), clean up obstacles to ensure stable load.

(III) Protection Faults: Motor Overheating, Overload Alarm

Fault Phenomenon	Possible Causes	Solutions
Motor housing temperature is too high (exceeding 80℃), and the driver reports "overheating"	1. Ambient temperature exceeding 80℃; 2. Poor motor heat dissipation; 3. Long-term overload operation	1. Check the equipment operating environment; if the temperature is too high, install cooling equipment such as axial fans and air conditioners to ensure the ambient temperature is ≤80℃; 2. Clean the dust and oil on the motor surface, ensure the heat sink is unobstructed and well-ventilated; 3. Check the load rate displayed by the driver (should be ≤100%); if it exceeds the rated load for a long time, re-evaluate the equipment load; replace with a motor of higher power or optimize the process to reduce the load if necessary.
Driver reports "overload" and the motor stops running	1. Instantaneous load exceeding peak power (15kW); 2. Motor winding short circuit or grounding; 3. Overload protection parameter of the driver set too low	1. Analyze the equipment operating conditions; avoid frequent startup, emergency stop, or heavy load impact; optimize the control logic to extend the acceleration time if necessary; 2. Disconnect the motor wiring, use a multimeter to measure the inter-phase resistance of the windings (should be equal) and the insulation resistance to ground (should be ≥50MΩ); if the resistance is abnormal, it indicates a winding fault and the motor needs to be sent for repair; 3. Check the driver's overload protection parameters (e.g., overload current threshold); ensure the parameter settings match the motor's rated current (20A) to avoid false triggering of protection due to excessively low parameter settings.

(IV) Feedback Faults: Deterioration of Position or Speed Control Precision

Fault Phenomenon	Possible Causes	Solutions
Increased positioning accuracy deviation, exceeding the allowable range	1. Resolver signal deviation; 2. Excessive mechanical transmission backlash; 3. Improper parameter setting of the driver position loop	1. Perform zero calibration on the resolver through the driver software (operation in accordance with the calibration procedure) to re-establish the position reference; 2. Check the transmission components such as couplings, gears, and lead screws; replace worn components or adjust the backlash (e.g., add gaskets) if there is excessive wear or backlash; 3. Optimize the position loop proportional gain and feedforward parameters of the driver to improve position tracking precision (debugging by professionals required).
Unstable speed feedback, large fluctuation in speed display	1. Loose or poor contact of resolver wiring; 2. Feedback signal subject to strong electromagnetic interference; 3. Internal fault of the resolver	1. Check the resolver terminals, reinsert and fasten them to ensure good pin contact; 2. Replace the feedback signal line with a shielded cable, ground the shield layer at one end (connected to the control cabinet ground bar), and route it separately from the power line (with a spacing of ≥20cm) to reduce electromagnetic interference; 3. Detect the resolver output signal with special equipment; if the signal is distorted and irregular, it indicates an internal fault and the resolver needs to be replaced.