Stepper motor (1)Even the same devoted into the motor, when using different driving scheme, the torque-speed characteristics also vary widely. （2)Stepper motor in the job, take turns to the pulse signal in a certain order (on each phase windingDrive within the circular allocator control winding through the way of power)。 （3)Stepper motor is different from other motor, and additional current is only the nominal additional voltage reference; For step motor is a pulse power supply, power supply voltage is the highest voltage, rather than the average voltage, so the step motor can be beyond the scope of its rating. But when the choice should not violate rating too far. （4)Stepper motor no piled up error: general precision of the stepper motor step into practice from the Angle of three percent to five, and do not accumulate. （5)Stepper motor torque will vary with the increase of rotational speed down: when the stepper motor rolling, the motor of each phase winding inductance will form a reverse electromotive force; The higher the frequency, the greater the back emf. Under the effect of it, the motor with frequency (Or speed)The phase current decreases, and then led to the decrease of the moment. （6)Stepper motor to the surface of the maximum temperature: stepper motor temperature first can make motor demagnetization of magnetic materials, and then led to the decrease of the moment and even out of step, so the motor to the surface of the highest temperature should depend on different points of demagnetization magnetic material; Demagnetization of magnetic materials, in general, some are above 130 degrees Celsius, some even as high as 200 degrees Celsius above, so the stepper motor surface temperature of 80 - the temperature of 0 degrees Celsius90 degree completely normal. （7)When FREE for off-line signal low electricity at ordinary times, drive the output to the motor current is blocked, the motor rotor is in FREE state (Offline status)。 In some automation equipment, if be in, drive continuous electric power requirement direct rolling motor shaft (Manual way)And FREE signal will be low, the machine offline, for manual operation or recuperation. After done manually, then FREE signal is high, with continuous automatic control. （8)Hybrid stepping motor drive power supply voltage is generally a broad scale (The voltage of power supply for example IM483 is 12 ~ 48 VDC)In general, the power supply voltage according to the operating speed of the motor and echo request to choose from. If the motor operation speed is higher or echo request faster, so the voltage value is high, but pay attention to the power supply voltage ripple cannot exceed the maximum input voltage of the drive, or you may damage the driver. （9)The output of the power supply current is generally based on the drive current I decide that. If choose the linear power supply, power supply current generally desirable I 1. 1 ~ 1. 3 times; If choose switching power supply, power supply current generally desirable I 1. 5 ~ 2. 0 times. （10)Stepper motor can work normally when low speed, but higher than the frequency must be won't be able to launch, accompanied by squeaking noise. Stepper motor with a technical parameters: the light frequency, the stepper motor under the condition of light can be called the normal pulse frequency, if the pulse frequency is higher than the value, the motor can't normal start, may be lost or blocked. In a load case, start frequency should be lower. If want to make the motor to reach high speed rolling, pulse frequency should speed up the process, starting with low frequency, and then press must speed up the degree of high frequency (up to the desiredMotor speed from low speed to high speed)。 （11)In A simple way to adjust two phase stepper motor rolling direction after the power supply, just put the motor and drive A + and A - wiring（May B + and B -）Switch. （12)Generally consists of two phase four phase hybrid stepping motor stepper driver to drive, therefore, cohesion can use series connection or and the connecting method will connect two phase using four phase motor. In series connection is in commonly applied at a lower motor speed, at the moment demand drive the output current of motor phase current zero. 7 times, so the motor heating small; And the connecting method generally used in motor speed higher occasions (Also known as the high speed connection), the drive output current for the motor phase current demand of 1. 4 times, so the stepper motor heating is bigger.
