High Torque Phase Digital Stepping Cnc Stepper Motor Driver DM856
DM556 2 phase digital stepper motor driver.
DM856 is a low noise digital stepper motor driver. With the latest 32-bit DSP technology, users can set arbitrary subdivision within 512 and arbitrary current value within rated current, which can meet the application needs of most occasions. Because of the use of built-in micro-subdivision technology, even under the condition of low subdivision, it can achieve the effect of high subdivision. It runs smoothly at low, medium and high speeds, and has super-low noise. The driver integrates the function of parameter auto-tuning, which can automatically generate optimal operation parameters for different motors and maximize the performance of the motor.
Description of drive functions | |
Function | Description of operations |
Setting of micro-stepping level number | SW5-SW8, the four DIP switches, are used to select the 16 micro-stepping levels in total. Please select correct micro-stepping level according to the drive panel and ensure that the drive does not act during the setting. |
Output current setting | SW1-SW3, the three DIP switches, is used to select the 8 output current levels in total. Please refer to the description of drive panel for specific output current setting. |
Auto semi-current | The function of auto semi-current of drive can be set via SW4. “off” represents that the idle current is set as the half of operating current, while “on” means that the idle current is equal to the operating current. For general purpose, SW4 shall be set as off for lower heating and higher reliability of motor and drive. The current reduces by half automatically about 0.4s after the pulse train stops. The actual value of 60%, calorific value theoretically reduced to 36%. |
Signal interface | PUL+ and PUL- are the positive and negative terminals of control pulse signal respectively; DIR+ and DIR- the positive and negative terminals of direction signal; and ENA+ and ENA- the positive and negative terminals of enable signal. |
Motor interface | A+ and A- are the positive and genitive terminals of phase-A winding of stepper motor; and B+ and B- the positive and genitive terminals of phase-B winding of stepper motor. The motor can run in the reverse direction when phase A and B windings are exchanged. |
Power interface | DC power supply is adopted. The working voltage range of DM856 is recommended to be 20-70VDC, and the power supply is more than 80W. |
Indicator | The drive has two indicators: the green one, a power indicator and twinkle upon the power up of drive; the red one, a fault indicator and twinkle in case of overvoltage and over current. The red indicator goes off only when the fault is removed. The fault of drive can only be removed when the drive is powered on and enabled again. |
Installation instructions | The size of the driver is 118X75.5X33mm and the distance between mounting holes is 112mm. It can be installed horizontally and vertically. Vertical installation is recommended. When installed, it should be tightly attached to the metal cabinet to facilitate heat dissipation. |
DM856 driver uses 8-bit dial switch to set subdivision accuracy, dynamic current and half-current/full-current.
Detailed description is as follows:
Working current setting :
Output peak current | Output Reference Current | SW1 | SW2 | SW3 |
Default | Off | off | off | |
2.1A | 1.5A | on | off | off |
2.7A | 1.9A | off | on | off |
3.2A | 2.3A | on | on | off |
3.8A | 2.7A | off | off | on |
4.3A | 3.1A | on | off | on |
4.9A | 3.5A | off | on | on |
5.6A | 4.0A | on | on | on |
Micro-step subdivision setting:
Step / Revolutions | SW5 | SW6 | SW7 | SW8 |
Default | on | on | on | on |
400 | off | on | on | on |
800 | on | off | on | on |
1600 | off | off | on | on |
3200 | on | on | off | on |
6400 | off | on | off | on |
12800 | on | off | off | on |
25600 | off | off | off | on |
1000 | on | on | on | off |
2000 | off | on | on | off |
4000 | on | off | on | off |
5000 | off | off | on | off |
8000 | on | on | off | off |
10000 | off | on | off | off |
20000 | on | off | off | off |
25000 | off | off | off | off |
Installation dimensions:
Front view of installation Side view of installation
Note: Suggest using side mounting, the heat effect is better !
A high performance digital stepper motor driver based on DSP with advanced control algorithm.
Low-noise, low-vibration and low temperature rising !
Automatic Half current, self-test, over voltage, under voltage, over current protection.
Smooth Operation.
Used in various large and medium-sized automation equipment, such as: engraving machine, cutting machine, packaging machinery, electronic processing equipment, automatic assembly equipment, etc. Users expect the application of low noise and high speed equipment to be more effective.
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