The pulse frequency should speed up the process

 With the advent of fully digital AC servo system, AC servo motor is also increasingly used in digital control systems.
Order to adapt to the trend of development of digital control, motion control systems, most of the stepper motor, or all-digital AC servo motor as the implementation of the motor. Although both are similar in the control mode (pulse string and direction signal), but there are large differences in performance and applications. Now on both the use of performance for comparison. A control accuracy of different 45The two-phase hybrid stepping motor step angle is generally 3.6 °, 1.8 °, the five-phase hybrid stepper motor step angle of 0.72 °, 0.36 °.   the increase of the phase current decreases, resulting in decreased torque. 4. Normal operation of the stepper motor low speed, but higher than a certain speed can not be started, accompanied by howling. The stepper motor has a technical parameter: load starting frequency, stepper motor with no load to start the normal pulse frequency, pulse frequency is higher than this value, the motor does not start, you may lose steps or stall. Load case, the starting frequency should be lower. If you want the motor to achieve high-speed rotation, the pulse frequency should speed up the process,
 so completely normal appearance of stepper motor temperature is 80-90 degrees Celsius. Why torque stepper motor with the speed increases down? When the stepper motor rotates, the inductance of the motor windings of each phase will form a reverse electromotive force; the higher the frequency the greater the back EMF. In its role, the motor with the frequency (or speed),  Therefore, a receiver of a portable  cell phone jammer  can not be subjected to the control of different transmitters. the increase of the phase current decreases, resulting in decreased torque. 428 stepper motor at low speeds normal operation, but higher than a certain speed will not be able to start, accompanied by howling?
If the motor speed is higher or faster response to the request, then the voltage values are high, but note that the ripple voltage can not exceed the maximum input voltage of the drive, otherwise it may damage the drive. B. current power supply current is generally determined according to the drive output current I Linear power supply current is generally preferable to I 1.1 to 1.3 times; if the switching power supply, supply current is generally preferable to I 1.5 to 2.0 times. 13 hybrid stepper motor drive signals off-line.
There are some high-performance stepper motor step angle is smaller. EDM machine tools such as Stone produced a stepper motor, its step angle of 0.09 °; Germany one hundred Glasgow (BERGER LAHR) production of three-phase hybrid stepping motor of its step angle by The DIP switch is set to 1.8 °, 0.9 °, 0.72 °, 0.36 °, 0.18 °, 0.09 °, 0.072 °, 0.036 °, compatible with a two-phase and five-phase hybrid stepper motor step angle.