Motovario motor Germany Motovario model Motovario price

Motovario motors are permanent magnet motors controlled by electronic circuit commutation or current control. Permanent magnet brushless motors come in two types: sine wave drive and square wave drive; those with rectangular wave drive current are commonly referred to as permanent magnet brushless DC motors, while those with sine wave drive current are commonly referred to as permanent magnet AC servo motors. Based on sensor type, they can be classified into sensor-equipped motors and sensorless motors.

Motovario motor operating principle

The motor's DC disc brake is installed on the end cap at the non-shaft extension end of the motor. When the brake motor is connected to the power supply, the brake motor operates simultaneously. Due to electromagnetic attraction, the electromagnet attracts the armature and compresses the spring, causing the brake disc to disengage from the armature end cap, allowing the brake motor to start running. When the power is cut off, the brake motor's electromagnet loses its magnetic attraction, and the spring pushes the armature to press against the brake disc. Under the action of frictional torque, the brake motor stops immediately. We also produce corresponding YDEJ dual-speed (multi-speed, high pole ratio) motors. The brake motor power is supplied by the rectifier inside the motor junction box. For 3 kW and below, it is AC220V-DC99V; for 4 kW and above, it is AC380V-DC170V (special designs such as DC24V can also be made according to factory requirements). The YEJ series electromagnetic brake motors enable rapid braking after power loss. The quick braking time for YEJ2-63-90 motors is less than 0.15 seconds, and for YEJ-100-160 motors is less than 0.20 seconds. Brake motors can achieve slow braking by changing the wiring in the junction box according to user requirements. This series of motors features low noise and reliable braking performance. Its working principle is: when the brake motor is energized, it receives 198V DC power through 220V AC rectification. At this time, the armature is electromagnetically attracted, placing the brake disc in a rotatable state and allowing the brake motor to rotate freely. When the brake motor loses power, the electromagnet loses power, and the armature is immediately held by the spring, pressing the brake disc against the motor's rear end cap to stop rotation.

Motovario motor fault analysis

For an engine to start normally, three elements are required: compression, spark, and air-fuel mixture. If any of these elements malfunction, it will cause the engine to fail to start or experience difficulty starting. There are many factors leading to starting faults in electronic fuel injection engines. The faults analyzed below occur under conditions where the battery voltage and starting system are functioning normally, the engine has good compression and spark, and the exhaust purification device is working properly. Starting faults generally manifest as failure to start or difficulty starting. Difficulty starting is further divided into cold start difficulty and hot start difficulty.

Motovario motor classification

The excitation method of a motor refers to how the field winding is powered to generate magnetomotive force and establish the main magnetic field. Depending on the excitation method, DC motors can be classified into the following types: 1. Separately excited DC motor: The field winding has no connection with the armature winding and is powered by another DC power source. Permanent magnet DC motors can also be considered separately excited DC motors. 2. Shunt-excited DC motor: The field winding is connected in parallel with the armature winding. As a shunt generator, the terminal voltage generated by the motor itself powers the field winding; as a shunt motor, the field winding and armature share the same power source, making its performance similar to that of a separately excited DC motor. 3. Series-excited DC motor: The field winding is connected in series with the armature winding and then connected to the DC power source. In this type of DC motor, the field current is the same as the armature current. 4. Compound-excited DC motor: This motor has both shunt and series field windings. If the magnetomotive force produced by the series winding is in the same direction as that produced by the shunt winding, it is called cumulative compound excitation. If the two magnetomotive forces are in opposite directions, it is called differential compound excitation. DC motors with different excitation methods have different characteristics. Generally, the main excitation methods for DC motors are shunt, series, and compound excitation, while the main excitation methods for DC generators are separate, shunt, and compound excitation.

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