Place of Origin: | Jiangsu, China (Mainland) |
Brand Name: | Jkongmotor |
Certification: | CE, ROHS,ISO9001 |
Model Number: | JK57BLS |
Minimum Order Quantity: | 3-10pcs |
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Price: | US $199-319 / Pieces | 3 Piece/Pieces (Min. Order) |
Packaging Details: | with export carton . big quantity with pallet |
Delivery Time: | For samples , 7-15 days / For batch , 15-25days |
Payment Terms: | T/T , paypal , Western Union, L/C |
Supply Ability: | 30000PCS/MONTH |
Model: | Nema 34 Colsed Loop Stepper Motor Kits | Item: | JK86HSN |
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Holding Torque: | 4.5N.m~13N.m | Current: | 6A |
Length: | 78-155mm | Weight: | 2.8-5.9 |
High Light: | brushless dc electric motor,micro brushless dc motor,4axis 86mm Closed Loop Stepper Motor |
What is closed loop stepper motor?
The control methods of stepper motors are generally divided into two control methods: open-loop control and closed-loop control. Among them, the simplest control method for open-loop control of stepper motors is the ring control system. Under this control method, the stepper motor controls pulses. The input of the motor does not depend on the position of the rotor, but sends out its control pulses according to a fixed rule. The stepper motor only works by relying on this series of predetermined pulses. This control method is more suitable for the uniqueness of the stepper motor. for controlling stepper motors.
What is a closed-loop stepper motor
Closed-loop control is a basic concept of cybernetics. Refers to a control relationship in which the controlled output returns to the control input in a certain way, and exerts a control influence on the input. The closed-loop control of the stepper motor uses position feedback and (or) speed feedback to determine the phase transition that is adapted to the rotor position, which can greatly improve the performance of the stepper motor.
In the closed-loop control stepper motor system, the working speed range can be expanded when tracking and feedback with a given accuracy, or the tracking and positioning accuracy can be improved at a given speed, or the limit speed index and limit can be obtained. Accuracy metrics.
The control method of closed-loop stepper motor
The closed-loop control methods of stepper motors are roughly divided into two types:
1. Keep the phase relationship between the excitation magnetic flux and the current consistent, so that it can generate an electromagnetic torque that can drive the load torque. This way of controlling the motor current is the same as that of the brushless DC motor, which is called the brushless drive mode or Current closed-loop control method.
2. The method of controlling the phase angle of the excitation magnetic flux and the current when the motor current is kept constant is called the power angle closed-loop control method. The power angle is the phase angle formed by the mutual attraction between the rotor magnetic pole and the stator excitation phase (or the axis of the stator rotating magnetic field considered as a synchronous motor). This power angle is smaller at low speed or light load, and larger at high speed or high load. Referring to the following figure in the principle part of the open-loop control above, the "bar A" phase attracts the rotor magnetic pole, and the angle of the "bar B" phase excitation is π/2, and the rotor magnetic pole is located at the leading edge of the "bar A" phase ( When the S pole of the rotor in the figure is located on the left side of the A phase), the magnetic pole "bar B" phase starts to be excited.
Contact Person: Miss. Annie
Tel: +8615995098661
Fax: 86-519-88713769
Address: Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162
Factory Address:Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162