Our 3DM860 is a high-performance digital stepper driver based on DSP with advanced control algorithm. The stepper motors driven by 3DM860 can run with much smaller noise and much less vibration than other drivers in the market. The 3DM860 possess the feature of lower noise, lower vibration, and lower heating. Its voltage is DC 24V-80V or AC 20V-60V. It is suitable for all the 3-phase hybrid stepper motor whose current is less than 6.0A. There are 16 kinds of microstep of 3DM860. The maximum step number of 3DM860 is 40000 steps/rev. Its current range is 2.4A-7.2A, and its output current has 8 stalls. 3DM860 has automatic semi-flow, over-voltage, under voltage and over-current protection function
1.Features
● 3-phase digital stepper driver, adoption of 32-bit DSP technology
● Low-noise, low-vibration and low temperature rising
● Voltage 24~80VDC or 20~60VAC
● With 8 stalls output current setting, peak current 7.2A
● With 16 stalls microstep subdivision setting
● Automatic half current, self-test, over voltage, under voltage, over current protection
● Internal optical isolation, highest frequency response 200KHZ.
● Suitable for current range 2.4~7.2A 3-phase nema 23 stepper motor, nema 34 stepper motor
2.Microstep Resolution Selection
Pulse/REV |
SW5 |
SW6 |
SW7 |
SW8 |
Default |
ON |
ON |
ON |
ON |
800 |
OFF |
ON |
ON |
ON |
1600 |
ON |
OFF |
ON |
ON |
3200 |
OFF |
OFF |
ON |
ON |
6400 |
ON |
ON |
OFF |
ON |
12800 |
OFF |
ON |
OFF |
ON |
25600 |
ON |
OFF |
OFF |
ON |
51200 |
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 |
40000 |
OFF |
OFF |
OFF |
OFF |
Default: The pulse can be customized according to customers’ requirements.
3.Current Setting
REF |
Peak |
SW1 |
SW2 |
SW3 |
2.00A |
2.40A |
ON |
ON |
ON |
2.57A |
3.08A |
OFF |
ON |
ON |
3.14A |
3.77A |
ON |
OFF |
ON |
3.71A |
4.45A |
OFF |
OFF |
ON |
4.28A |
5.14A |
ON |
ON |
OFF |
4.86A |
5.83A |
OFF |
ON |
OFF |
5.43A |
6.52A |
ON |
OFF |
OFF |
6.00A |
7.20A |
OFF |
OFF |
OFF |
Users can set the driver half flow function by SW4. "OFF" indicates the quiescent current is set to half of the dynamic current. "ON" indicates the quiescent current and the dynamic current are the same. User can set SW4 to "OFF", in order to reduce motor and driver heating and improve reliability.
4.Interface description
Signal |
Function |
Operating Instructions |
ALARM/PWR |
Indicator Lights |
There are two indicator lights. Power indicator is green. When the stepper driver power on, the green light will always be lit. Fault indicator is red, when there is over-voltage or over-current fault, the red light will always be lit; after the driver fault is cleared, if re-power the red light will be off. |
DIR-/DIR+ |
Signal Interfaces |
PUL+ and PUL- are the positive and negative side of control pulse signal; DIR+ and DIR- are the positive and negative side of direction signal; ENA+ and ENA- are the positive and negative side of enable signal. |
PUL-/PUL+ | ||
ENA-/ENA+ | ||
U |
Motor Interfaces |
U, V, W are connected to winding of motor. If you need to backward, any 2 wires can be reversed. |
V | ||
W | ||
+Vdc |
Power Interfaces |
The stepper driver uses DC power supply. Recommended operating voltage is 24VDC-80VDC or 20VAC-60VAC, and power consumption should be greater than 350W. |
GND |
5.Overall Dimensions
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