How much static torque a motor can have when it is cut off
The stepping motor has a torque in the absence of electricity, called the brake torque. The braking moment is much smaller than the moment that holds the torque (the torque generated by the non-rotation when the current is energized). 57 stepper motor braking torque according to the motor size, the amount of each a magnet and magnet magnetic density, the clearance between rotor and stator is related, manufacturers usually don't put the parameters as indicators of management to control. The 57-series 57 motor is 77.5 mm long and the brake torque is about 88mNm, so you can have a concept of braking torque size.
The moment of the power failure is the torque of the motor itself, which is the force of the rotor without the electricity
Upstairs said yes, static moment refers to the instant, step motor electricity generated by the total moment for static moment, as your deceleration, torsion will have corresponding change; Power cuts, you say that is the resistance of the motor itself, even if you don't live, you have the same phase of two wires together, you will produce resistance to twist the motor shaft, if connected to enable signal, no...
The static torque is 2.5 newtons. The step motor is an open loop controlling element which converts the electrical pulse signal into angular displacement or line displacement. In the case of the overload, motor speed, stop position depends only on the pulse signal frequency and pulse number, and not affected by load change, when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed point of view, called "step Angle", its rotation is based on the Angle of the fixed step by step. It can control the amount of angular displacement by controlling the number of pulses, so as to achieve accurate positioning. At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency to achieve the goal of speed adjustment. Stepper motor is a kind of induction motor, its working principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step motor to work properly, is time-sharing power supply for step motor drive, multiphase timing controller.
