Is the torque characteristic characteristic of the step motor? Does the servo motor have a moment characteristic curve?
The moment frequency characteristic is not unique to the step motor. All motors have a relationship between the input frequency and the output torque. This is the relationship between the value of the output torque at different input frequencies. For stepping motors, however, the output torque decreases rapidly as input increases frequently. In engineering, the design and application of this characteristic of the motor is brought to the attention of design and application. The project is to ensure that the torque must meet the requirements at any speed. Both: stepper motor input frequency, the output torque of the punctuation, must fall on the rotational speed of shaft torque frequency graph, the frequency axis, characteristic curve, within the scope of the surrounding to work properly. Other motors (e.g., servo motors), because in a very large speed range, the output torque varies little, which is what we call constant torque output. This is the main difference between stepping motor and other motors in design and usage. It is also one of the main disadvantages of stepping motor in performance.
The word "moment frequency" is not very accurate, so it's better to turn the torque, which means the torque changes as the speed changes Usually under rated speed servo motor, can output the continuous rated torque (note can be, how much actual output associated with working state), above the rated speed, can according to the constant power output (can be, the actual output power associated with state, such as your load bearing is small, the natural power is small)
The moment frequency characteristic curve is the reference indicator diagram of the step motor running process, the servo motor is the constant torque output at the rated speed. overloading
