Abstract: Correct operation and maintenance of motion control systems not only guarantee and extend the life cycle of the equipment itself, but also safeguard the economic benefits of the manufacturing system. This article takes Delta brand servo systems and CNC systems as examples to discuss the operation and maintenance guidelines of motion control systems, aiming to provide important core equipment management technologies for front-line production enterprises. Keywords: Servo, CNC, Motion control, Equipment maintenance 1 Introduction To do a good job, one must first have the right tools. The motion control system is the heart of mechatronics equipment. The precision electromechanical architecture of the system determines the importance of operation and maintenance. To help end users maximize their investment returns, correct operation and maintenance not only guarantee and extend the life cycle of the equipment itself, but also safeguard the economic benefits of the manufacturing system. 2 Delta Servo System Operation and Maintenance Delta servo systems include servo drivers and servo motors. The drivers utilize precise feedback combined with high-speed digital signal processors (DSPs) to control IGBTs to generate precise current outputs, which drive three-phase permanent magnet synchronous AC servo motors to achieve precise speed regulation, positioning, and other functions. Compared to ordinary motors, AC servo drives offer greater reliability and require less maintenance due to their numerous internal protection functions and the absence of brushes and commutators. To extend the servo system's lifespan, the following points should be considered during use: For the system's operating environment, five factors must be taken into account: temperature, humidity, dust, vibration, and input voltage. Strictly adhere to the requirements in the installation manual. The servo drive must be installed in a sheltered control box with good ventilation and heat dissipation, ensuring the air is free of moisture, flammable, and corrosive gases. Keep the control box clean, free of conductive materials such as copper wire and iron filings to prevent short circuits in the drive's circuit boards. Since there are no rotating electrical contacts like slip rings or rectifiers, servo motor maintenance primarily involves external cleaning and bearing replacement. Regular external cleaning is necessary to remove contaminants that affect heat dissipation. The cleaning cycle depends on specific environmental conditions and the degree of contaminant buildup. If the motor or housing is air-cooled, the fan should also be checked and cleaned regularly. Bearing life is generally 10,000 to 20,000 hours; operating the motor below its rated speed, thrust, and radial bearing load limits will extend bearing life. Every 2500 hours, the bearings should be checked for any obvious or abnormal noise. If such noise is heard, the motor should be immediately taken to a Delta Electronics service center for bearing replacement. Delta servo drives are equipped with many alarm signals to protect the drive and motor from damage in unexpected situations. Common fault signals and solutions are listed below. ALM11 Encoder wiring error or encoder failure: Carefully check the encoder connection cable and check if the motor shielding cable is connected to the drive. ALM06 Overload, incorrect motor power line wiring: Check if the motor shaft is misaligned. ALM09 Poor power line wiring or motor encoder failure: Check the power line. ALM03 Main circuit input voltage too low: Check if the input power supply meets the requirements. ALM22 Main circuit power supply phase loss: Check if the power line connection is loose. 3 Delta CNC System Operation and Maintenance 3.1 General Operating Rules Strictly follow the operating procedures; prevent the CNC device from overheating; frequently monitor the mains voltage of the CNC system; prevent dust from entering the CNC device; regularly check and replace the memory battery. CNC system programmers, operators and maintenance personnel must undergo specialized technical training, be familiar with the mechanical, CNC system, power equipment, hydraulic, air source and other parts of the CNC machine tool used, as well as the operating environment and processing conditions; and be able to use it correctly and reasonably according to the requirements of the machine tool and system instruction manual. Faults caused by improper operation should be avoided as much as possible. 3.2 Maintenance rules (1) Prevent CNC device from overheating. Clean the heat dissipation and ventilation system of the CNC device regularly. Check the operation of each cooling fan on the CNC device regularly. Check and clean it every six months or quarter, depending on the workshop environment. If the temperature inside the CNC device exceeds 55℃～60℃ due to the high ambient temperature, an air conditioning device should be installed in time. (2) Monitor the mains voltage of the CNC system regularly. Usually, the allowable mains voltage range of the CNC system is +10% to -15% of the rated value. If it exceeds this range, it will cause the CNC system to be unstable, or even damage important electronic components. Therefore, the fluctuation of the mains voltage should be paid attention to regularly. For areas with poor power grid quality, a dedicated AC voltage stabilizer for CNC systems should be installed in a timely manner, which will significantly reduce the failure rate. (3) Prevent dust from entering the CNC device. Except for maintenance, electrical cabinet doors should be opened as little as possible. Dust and metal powder floating in the workshop air may fall on printed circuit boards and electrical connectors, which can easily cause a decrease in the insulation resistance between components, resulting in failures or even damage to components. (4) Connector cleaning agent spraying. Some circuit boards and connectors that have been contaminated by external dust and oil mist can be cleaned with a dedicated electronic cleaner. When cleaning connectors, spray enough liquid mist into the socket, insert the original plug or pin, and then pull it out to remove the dirt. This can be repeated until the inside is clean. After the connector is plugged in, the excess spray will drip out naturally, and you can wipe it dry. After a period of time, the naturally dried spray will form an insulating layer on the non-contact surface, making it well insulated. When cleaning contaminated circuit boards, you can spray the circuit boards with cleaning agent. After spraying, stand the circuit boards upright so that the dust and dirt can flow out with the excess liquid. After drying, they can be used. (5) Regularly check and replace the memory battery. Usually, the contents stored in some memory in the CNC system are maintained by the battery when the power is off. When the battery voltage drops to a certain value, the parameters will be lost. Therefore, the battery voltage should be checked regularly. When the voltage drops to the limit or the battery voltage alarm occurs, the battery should be replaced in time. If the controller is not turned on for more than a month, the data in the internal memory may be lost. Once the parameters are lost, they can be re-entered after replacing the battery. (6) Maintenance of the CNC system when it is not used for a long time. When the CNC machine tool is idle for a long time, the CNC system should also be maintained regularly. First, the CNC system should be powered on frequently. When the machine tool is locked and not moving, let it run without load. In the plum rain season when the air humidity is high, it should be powered on every day to drive away the moisture in the CNC cabinet by the heat of the electrical components themselves, so as to ensure the stable and reliable performance of the electronic components. Practice has shown that machine tools that are frequently idle are prone to various malfunctions when turned on after the rainy season. 4. Conclusion Due to limitations in the working conditions of end-users of motion control systems and the technical support capabilities of frontline engineering departments, electromechanical systems often fail to receive proper equipment management. This can range from shortening the lifespan of mechatronic equipment to causing economic losses due to reduced productivity caused by equipment failures. The core equipment technical management guidelines derived from the discussion of operation and maintenance issues based on Delta motion control systems are fully applicable to other motion control systems.