2phase NEMA34 hybrid stepper motor driver DSP DC20V-80V 4A MC856 replace DM856

MC856 digital low voltagestepper motor driver, using the latest 32 bit DSP technology, suitable fordriving the 57 and 86 series motors, with excellent medium and low speedperformance. It can set any subdivision within 256 and any current value inrated current, which can meet the needs of most small equipment. With thebuilt-in micro technology, even under low subdivision conditions, it canachieve the effect of high subdivision. The medium and low speed operation isvery smooth, and the noise is very small.

 

function description 

The output current of the driver is set by the three dial switches of SW1-SW3, and the output current has 8 levels. For specific output current settings, refer to the drive panel instructions.

the auto semi current function of the drive through the SW4. The OFF indicates that the quiescent current is set at half of the dynamic current, and the ON represents the same static current as the dynamic current. For general use, the SW4 shall be set to OFF to reduce heating and improve reliability of the motor and actuator. After the pulse string stops, about 0.4seconds or so, the current automatically reduces by 50% (actual value 65%), the calorific value theoretically reduces 35%.

By the SW5-SW8 four dial switch set microstep subdivide, the total of 15 stalls microstep. When the user sets the subdivision, the drive should be stopped. The micro set, please check the drive panel.

The drive has red and green lights. The green light is the power indicator lamp. When the drive is powered on, the green light is always on; the red light is the fault indicating lamp, and when the overvoltage and overcurrent faults occur, the trouble lamp is always on. After the fault is clear, the red light goes out. When the drive fails, only the power on and re enable to clear the fault.

PUL+ and PUL- are the positive and negative ends of the control pulse signals; the DIR+ and DIR- are the positive and negative ends of the directional signal; ENA+ and ENA- are the positive and negative ends of the enabling signals.

The A+ and A- are connected with the positive and negative ends of the A phase winding of the stepping motor; B+ and B- are connected with the positive and negative ends of the B phase winding of the stepping motor. When the A and B two phase windings are switched, the motor direction is reversed.

power supply, the input voltage range: 24~80VDC, power supply is greater than 200W. Recommend 48VDC

Drive dimensions are: 117 * 78 * 34mm, the mounting hole distance is 111mm. It can be installed horizontally or vertically (vertical installation is recommended). When installed, it should be attached to the metal cabinet to facilitate heat dissipation.

 

Application:

Suitablefor all kinds of motion control automation equipment and instruments, such aselectronic processing and testing, semiconductor packaging, laser cutting andwelding, laser printing, packaging machinery, engraving machine, markingmachine, cutting machine, apparel plotter, CNC machine tools, automaticassembly equipment etc.. It is the first choice for users with low noise, highspeed performance and competitive cost performance.