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Address: No.28,Shunyuan Road,Xinbei Dist,Changzhou,Jiangsu,China(Mainland)
Contact name:Kangtai Lee
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This PM45 FH stepper motor driver is specifically designed for manually controlling bipolar steppe motors.
There are two different types of connectors it can fit in, 1.25mm pitch and 2.0mm connectors.
When the driver is connected with 3~12 V DC power supply(VDD connected to positive of power supply, and GND is connected to negative.), it’s able to driver a regular stepper motor.
There are four buttons on the driver panel, and user can click different button combinations, to control a stepper motor with demanded order.
Four buttons:
(R: run; S: stop; A: Acceleration; D: Deceleration )
Button combination:
| Number | Button combination | Function description |
| 1 | A = ON | When the motor is at a standstill, press the accelerator key, and the motor will start to run forward manually; |
| 2 | A+R= ON | When the motor is at a standstill, press the acceleration + run key, and the motor will start to manually accelerate forward; |
| 3 | A+S = ON | When the motor is at a standstill, press the acceleration + stop button, and the motor will start manual forward deceleration operation; |
| 4 | D = ON | When the motor is at a standstill, the deceleration key is pressed and the motor starts to run in reverse manually; |
| 5 | D+R= ON | When the motor is at a standstill, press the deceleration + run key, and the motor will start manual reverse acceleration operation; |
| 6 | D+S = ON | When the motor is at a standstill, press the deceleration + stop button, and the motor will start manual reverse deceleration operation; |
| 7 | R = ON | When the motor is at a standstill, press the run button and the motor will start to run automatically; |
| 8 | A = ON | When the motor is running automatically, press the accelerator key and the motor will start to accelerate; |
| 9 | D = ON | When the motor is running automatically, when the deceleration key is pressed, the motor starts to decelerate; |
| 10 | R+A= ON | When the motor is running automatically, press the run+accelerator key, and the motor will start to run automatically in the forward direction; |
| 11 | R+D= ON | When the motor is running automatically, press the run + slow down key, and the motor will start to run automatically in the reverse direction; |
| 12 | S+A(S+D) = ON | When the motor is stationary, press the stop+acceleration (or stop+decelerate) key, and the motor starts to manually set the distance of automatic cycle running; |
| 13 | S+R= ON | When the motor is at a standstill, press the stop + run key, and the motor will automatically reciprocate according to the manually set distance; |
| 14 | A= ON | When the motor is running in a reciprocating cycle, press the accelerator key, and the motor will accelerate in a reciprocating cycle; |
| 15 | D= ON | When the motor is running in a reciprocating cycle, press the deceleration key, and the motor will decelerate in a reciprocating cycle; |
| 16 | R+A= ON | When the motor is running in a reciprocating cycle, press the run+accelerator key, and the motor will reciprocate in a forward direction; |
| 17 | R+D= ON | When the motor is running in a reciprocating cycle, press the run + deceleration key, and the motor will reciprocate and run in the reverse direction; |
| 18 | S = ON | When the motor is running, press the stop button to stop the motor. |
| Remark | Combination keys, press in the order given, then it can reach its function. | |
Typical Applications
Manually control bipolar stepper motors
(1) What is a stepper motor and a stepper drive?
Stepper motor is a special motor specially designed for precise control of speed and position. Its rotation is operated step by step at a fixed angle (called "step angle"), so it is called stepper motor. Its characteristic is that there is no accumulated error, every pulse signal sent from the controller is received, and the motor runs at a fixed angle under the drive of the driver, so it is widely used in various open-loop control.
The stepping driver is a power amplifier that can operate the
stepping motor. It can convert the pulse signal sent by the
controller into the power signal of the stepping motor. The speed
of the motor is proportional to the pulse frequency, so the control
pulse frequency can be precisely adjusted. Speed, the number of
control pulses can be accurately positioned.
(2) What is the breakdown of the drive?
The stepper motor is determined by its own unique structure, and the “inherent step angle of the motor” (such as 1.2°/0.6°) is indicated at the factory. However, in many precision control and occasions, the angle of the whole step is too large, affecting the control precision, and the
vibration is too large. Therefore, it is required to complete the inherent step angle of a motor in many steps. This is called a subdivision drive and can realize this function. The electronic device is called a subdivision driver.
Because the step angle that has passed each step is reduced, the step uniformity is improved, so the control accuracy can be improved.
The vibration of the motor can be greatly reduced. The low-frequency oscillation is an inherent characteristic of the stepper motor. Subdivision is the best way to eliminate it.
It can effectively reduce torque ripple and increase output torque.
These advantages are generally recognized by users and bring them benefits, so it is recommended that you use subdivision drivers.
(4) Why does my motor only work in one direction?
The pulse mode does not match, the signal is pulse/direction, the driver must be set to this mode; if the signal is CW/CCW (double pulse mode), the driver must also be in this mode, otherwise the motor will only run in one direction.
