Product Description
Product Description
- Motor Features
- Five pairs of poles, smaller volume (80% of the volume of the original 4 pairs of poles ST series motor)
- Equipped with high resolution encoder (23-bit absolute encoder)
- Maximum torque 300%, stronger overload capacity
- The protection level is increased to IP67
- The vibration level is raised to A level
- Motor heating is reduced by 20%
- 380V motor, rated speed improved
Model Explanation
Wiring
Power Socket
4-core: applicable for 80 series
| Winding | U | V | W | PE |
| Core No. | 1 | 2 | 3 | 4 |
23/25-bit Absolute Encoder Socket
9-core: applicable for KA60/KA80 /KA90 series
| Signal | 5V | 0V | SD+ | SD- | E+ | E- | FG |
| Core No. | 8 | 6 | 5 | 4 | 3 | 2 | 1 |
17-bit Absolute Encoder Socket
9-core:applicable for KA60/KA80 series
| Signal | 5V | GND | 485+ | 485- | Battery + |
Battery GND |
FG |
| Core No. | 8 | 6 | 5 | 4 | 3 | 2 | 1 |
Power off Brake Socket
2-core: applicable for 80 series
| Signal | DC24V(Non-polar) | |
| Core No. | 1 | 2 |
Parameters of Motor Equipped with Power-off Brake
| Frame NO. | Rated torque | Rated voltage | Rated current | Rated power | Increased weight |
| 80 Series | 3.3 Nm | DC24V | 0.48A±10% | 11.5W | 0.8Kg |
Specification & Dimension
| Model | KA80 | KA80 | |
| M57130 | M5710 | ||
| Rated power (kW) | 0.75 | 1.0 | |
| Rated torque (N.m) | 2.5 | 3.5 | |
| Maximum instantaneous torque (N.m) | 7.5 | 10.5 | |
| Rated speed (rpm) | 3000 | 3000 | |
| Maximum speed (rpm) | 6000 | 6000 | |
| Rated current (A) | 4.8 | 6.0 | |
| Maximum instantaneous current (A) | 14.4 | 18.0 | |
| Rotor inertia (kg*cm^2) | 1.88 | 2.44 | |
| Weight(Kg)(Without brake) | 2.8 | 3.3 | |
| Pole pairs | 5 | ||
| Adapted driver work voltage (VAC) | 220 | ||
| Insulation class | F | ||
| Protection level | IP67 | ||
| Installation type | Flange mounting | ||
| Environment | Temperature | -15~40ºC (no freezing) ,Storage temperature: -15~70ºC (no freezing) | |
| Humidity | 80%RH below (no condensation) ,Storage humidity: 90%RH below (no condensation) | ||
| Air | Indoor (no direct sunlight), no corrosive and flammable gas, no oil mist and dust | ||
| LL | Vibration | Vibration speed below 0.5mm/s | |
| Without brake | 139 | 154 | |
| With brake | 179 | 194 | |
*Note: We can manufacture products according to customer’s requirements.
Motor characteristic curve
A:Continuous work area;B:Short-term work area
Company Profile
ZheJiang KND Automation Technology CO.,Ltd
ABOUT US
ZheJiang KND CNC Technique Co.LTD(KND) was established in 1993.It is a joint-stock private enterprise that is the earliest 1 focusing on the research,production,sales and service of CNC system in China.It has the qualification of national high-tech enterprise,and it is 1 of the largest CNC system brand in China.
KND has the core technology of self-research and possesses independent intellectual property rights. After 30 years’ development, it has a number of series products: CNC system, robot controller, automation controller, feed driver and motor, spindle driver and motor, industrial Internet.These products can meet the application requirements of CNC lathes, CNC milling machines, machining centers,grinding machines and other industrial equipments.It can also be used in industrial robots, truss robots, workshop networking,data collection and analysis,and other automation fields.So,KND provided a full range of choices for different kinds of clients.
PRODUCT DISTRIBUTION
CNC system Robot controller Universal automation controller
Servo drives Servo motors KWS Industrial Interconnection
MOTOR OVERVIEW
K series synchronous servo motor is a high-performance five-pole motor developed by KND;its power ranges from 0.2kW to 7.5kW and its frame includes 60, 80, 90, 110,130, 180 series. The kind of products have the characteristics of small size, high power, high speed, better encoder configuration, and strong overload capacity.If it is used with the SD510 series driver of KND, it can make the position control come true quickly and accurately.This combination can be applied in a variety of occasions which have a higher requirements for precision control.
ZJY (-K) series AC spindle servo motor used for CNC machine tools has the characteristics of compact structure,long service life,small moment of inertia and higher control accuracy. Combined with ZD210 series of new spindle servo driver, can make its performance get better display.It can be widely used in various CNC machine tools and it can also be the spindle,feed and other parts of the CNC mechanical products.
ZJY (-K) series spindle servo motor’s parameters showed below, rated power: range from 3.7kW to 37kW, rated voltage: 380V, rated frequency: 25, 33.3, 50, 66.67, 83.33Hz, rated speed: 750, 1000, 1500,2000, 2500r/ min.The maximum speed can reach 12000r/ min. The working system of the motor is S1, the protection level is IP54, and the insulation level is F. There are thermal element in the interior of motors., this kind of moter lose heat by a independent fan.You can choose a motor with a photoelectric encoder or a rotary transformer,that depends on your needs.
FAQ
Payments
1) We can accept EXW, FOB
2) Payment must be made before shipment.
3) Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.
Shipping
1) We only ship to your confirmed address. Please make sure your shipping address is correct before purchase.
2) Most orders will be shipped out within 3-7 working days CHINAMFG payment confirmation.
3) Shipping normally takes 7-25 working days. Most of the items will delivery in 2 weeks, while there will be a delay for something we cannot control (such as the bad weather). If it happens, just contact us, we will help you check and resolve any problem.
3) Please check the package CHINAMFG receipt, if there are some damages, please contact us immediately.
Feedback & Refund
1) Feedback is important to us, if you have any problem with our products, please contact us, our technician will give you useful advises.
2) When you have the parcel and not satisfied with the goods or it is other problem, please tell us immediately, and provide us a photo showing the detail.
3) Any reason requiring for all refund. Items must be in original condition and no physical damage. Buyer responsible for all shipping cost.
If you need more information, please contact with us. We will attach great importance to your any problems.
Hope we could establish a long-term effective cooperation.
| Application: | Universal, Industrial |
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| Operating Speed: | Constant Speed |
| Operation Mode: | Electric Motor |
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How are servo motors used in CNC machines and other precision machining equipment?
Servo motors play a crucial role in CNC (Computer Numerical Control) machines and other precision machining equipment. They provide precise and dynamic control over the movement of various axes, enabling high-accuracy positioning, rapid speed changes, and smooth motion profiles. Here’s a detailed explanation of how servo motors are used in CNC machines and precision machining equipment:
1. Axis Control:
CNC machines typically have multiple axes, such as X, Y, and Z for linear movements, as well as rotary axes for rotational movements. Servo motors are employed to drive each axis, converting electrical signals from the CNC controller into mechanical motion. The position, velocity, and acceleration of the servo motors are precisely controlled to achieve accurate and repeatable positioning of the machine’s tool or workpiece.
2. Feedback and Closed-Loop Control:
Servo motors in CNC machines are equipped with feedback devices, such as encoders or resolvers, to provide real-time information about the motor’s actual position. This feedback is used in a closed-loop control system, where the CNC controller continuously compares the desired position with the actual position and adjusts the motor’s control signals accordingly. This closed-loop control ensures accurate positioning and compensates for any errors, such as mechanical backlash or load variations.
3. Rapid and Precise Speed Changes:
Servo motors offer excellent dynamic response, allowing CNC machines to achieve rapid and precise speed changes during machining operations. By adjusting the control signals to the servo motors, the CNC controller can smoothly accelerate or decelerate the machine’s axes, resulting in efficient machining processes and reduced cycle times.
4. Contouring and Path Tracing:
CNC machines often perform complex machining tasks, such as contouring or following intricate paths. Servo motors enable precise path tracing by accurately controlling the position and velocity of the machine’s tool along the programmed path. This capability is crucial for producing intricate shapes, smooth curves, and intricate details with high precision.
5. Spindle Control:
In addition to axis control, servo motors are also used to control the spindle in CNC machines. The spindle motor, typically a servo motor, rotates the cutting tool or workpiece at the desired speed. Servo control ensures precise speed and torque control, allowing for optimal cutting conditions and surface finish quality.
6. Tool Changers and Automatic Tool Compensation:
CNC machines often feature automatic tool changers to switch between different cutting tools during machining operations. Servo motors are utilized to precisely position the tool changer mechanism, enabling quick and accurate tool changes. Additionally, servo motors can be used for automatic tool compensation, adjusting the tool’s position or orientation to compensate for wear, tool length variations, or tool offsets.
7. Synchronized Motion and Multi-Axis Coordination:
Servo motors enable synchronized motion and coordination between multiple axes in CNC machines. By precisely controlling the servo motors on different axes, complex machining operations involving simultaneous movements can be achieved. This capability is vital for tasks such as 3D contouring, thread cutting, and multi-axis machining.
In summary, servo motors are integral components of CNC machines and precision machining equipment. They provide accurate and dynamic control over the machine’s axes, enabling high-precision positioning, rapid speed changes, contouring, spindle control, tool changers, and multi-axis coordination. The combination of servo motor technology and CNC control systems allows for precise, efficient, and versatile machining operations in various industries.
How does the accuracy of a servo motor impact the precision of a system it operates in?
The accuracy of a servo motor has a significant impact on the precision of the system in which it operates. Here’s how the accuracy of a servo motor influences the precision of the system:
1. Positioning Control:
The accuracy of a servo motor directly affects the precision of positioning control in a system. A servo motor with high accuracy can accurately and consistently reach and maintain the desired position. This precision in positioning control is crucial in applications where precise movements, such as in robotics or manufacturing processes, are required. If the servo motor lacks accuracy, it may introduce position errors, leading to reduced precision in the system’s overall operation.
2. Repeatability:
Repeatability refers to the ability of a system to consistently achieve the same position or motion repeatedly. The accuracy of a servo motor plays a vital role in achieving high repeatability. A servo motor with high accuracy will consistently return to the same position when commanded to do so. This level of repeatability is essential in applications where consistent and precise movements are necessary, such as in assembly lines or pick-and-place operations. A lack of accuracy in the servo motor can result in variations in position from one cycle to another, reducing the overall precision of the system.
3. Error Compensation:
The accuracy of a servo motor is crucial for error compensation in a system. In many applications, external factors, such as variations in load or environmental conditions, can introduce errors in the system’s operation. An accurate servo motor can help compensate for these errors by precisely adjusting its position or motion based on feedback from sensors. This error compensation capability contributes to maintaining the precision of the system, as the servo motor can continuously adjust to minimize any deviations from the desired position or trajectory.
4. System Stability:
The accuracy of the servo motor also impacts the stability of the system. A servo motor with high accuracy can achieve stable movements and maintain control over the system’s dynamics. It can respond accurately to control signals, preventing overshoot, oscillations, or erratic behaviors that can degrade system precision. On the other hand, a servo motor with lower accuracy may introduce instability or erratic movements, compromising the overall precision of the system.
5. System Calibration and Calibration:
An accurate servo motor simplifies the calibration and fine-tuning process of a system. When a system requires calibration, an accurate servo motor provides a reliable reference point for adjustments. The precise and consistent movements of the servo motor make it easier to calibrate other components or subsystems in the system, ensuring that the entire system operates with the desired precision. If the servo motor lacks accuracy, it can be challenging to calibrate the system effectively, resulting in reduced precision in the system’s operation.
In summary, the accuracy of a servo motor has a direct impact on the precision of the system it operates in. An accurate servo motor enables precise positioning control, high repeatability, effective error compensation, system stability, and simplified calibration processes. These factors collectively contribute to achieving the desired precision in the system’s operation. Therefore, selecting a servo motor with the appropriate level of accuracy is crucial for ensuring the overall precision and performance of the system.
How does feedback control work in a servo motor system?
In a servo motor system, feedback control plays a crucial role in achieving precise control over the motor’s position, speed, and acceleration. The feedback control loop consists of several components that work together to continuously monitor and adjust the motor’s behavior based on the desired and actual position information. Here’s an overview of how feedback control works in a servo motor system:
1. Position Reference:
The servo motor system starts with a position reference or a desired position. This can be specified by a user or a control system, depending on the application requirements. The position reference represents the target position that the servo motor needs to reach and maintain.
2. Feedback Sensor:
A feedback sensor, such as an encoder or resolver, is attached to the servo motor’s shaft. The purpose of the feedback sensor is to continuously measure the motor’s actual position and provide feedback to the control system. The sensor generates signals that indicate the motor’s current position, allowing the control system to compare it with the desired position.
3. Control System:
The control system receives the position reference and the feedback signals from the sensor. It processes this information to determine the motor’s current position error, which is the difference between the desired position and the actual position. The control system calculates the required adjustments to minimize this position error and bring the motor closer to the desired position.
4. Controller:
The controller is a key component of the feedback control loop. It receives the position error from the control system and generates control signals that govern the motor’s behavior. The controller adjusts the motor’s inputs, such as voltage or current, based on the position error and control algorithm. The control algorithm can be implemented using various techniques, such as proportional-integral-derivative (PID) control, which adjusts the motor’s inputs based on the current error, the integral of past errors, and the rate of change of errors.
5. Motor Drive:
The control signals generated by the controller are sent to the motor drive unit, which amplifies and converts these signals into appropriate voltage or current levels. The motor drive unit provides the necessary power and control signals to the servo motor to initiate the desired motion. The drive unit adjusts the motor’s inputs based on the control signals to achieve the desired position, speed, and acceleration specified by the control system.
6. Motor Response:
As the motor receives the adjusted inputs from the motor drive, it starts to rotate and move towards the desired position. The motor’s response is continually monitored by the feedback sensor, which measures the actual position in real-time.
7. Feedback Comparison:
The feedback sensor compares the actual position with the desired position. If there is any deviation, the sensor generates feedback signals reflecting the discrepancy between the desired and actual positions. These signals are fed back to the control system, allowing it to recalculate the position error and generate updated control signals to further adjust the motor’s behavior.
This feedback loop continues to operate in a continuous cycle, with the control system adjusting the motor’s inputs based on the feedback information. As a result, the servo motor can accurately track and maintain the desired position, compensating for any disturbances or variations that may occur during operation.
In summary, feedback control in a servo motor system involves continuously comparing the desired position with the actual position using a feedback sensor. The control system processes this position error and generates control signals, which are converted and amplified by the motor drive unit to drive the motor. The motor’s response is monitored by the feedback sensor, and any discrepancies are fed back to the control system, enabling it to make further adjustments. This closed-loop control mechanism ensures precise positioning and accurate control of the servo motor.
editor by CX 2023-10-20