Regular price $70.00
The DMA860H is a digital stepper drive with simple design and easy setup. By implementing Leadshine advanced stepper control technology, this stepper drive is able to power 2-phase and 4 phase stepper motors smoothly with optimal torque and low motor heating & noise. Its operating voltage is 18-80VAC or 24-110VDC and it can output up to 7.2A current. All the micro step and output current are done via DIP switches. Therefore, the DMA860H are ideal choices for applications requiring simple step & direction control of NEMA 23, 24, 34, and 42 stepper motors.
Anti-Resonance for optimal torque, smooth motion, low motor heating and noise
Motor auto-identification and parameter auto-configuration for optimal torque from wide-range motors
Step & direction (PUL/DIR) and CW/CCW (via internal jumper set) control. Step & direction by default Multi-Stepping for smooth motor movement
Opto Isolation for input control signals
Input voltage 18-80VAC or 24-110VDC
16 selectable micro-step resolutions of 400-51,200 via DIP switches
8 selectable output current settings of 2.4 – 7.2A via DIP switches
Soft-start with no “jump” when powered on
Pulse input frequency up to 200 KHz. TTL compatible and optically isolated inputs
Automatic idle-current reduction
Protections for over-voltage and over-current
|
Parameters |
DMA860H |
|||
|
Min |
Typical |
Max |
Unit |
|
|
Output current |
2.4 |
- |
7.2 |
A |
|
Supply voltage |
18 24 |
36 - 70 50 - 90 |
80 110 |
VAC VDC |
|
Logic signal current |
7 |
10 |
16 |
mA |
|
Pulse input frequency |
0 |
- |
200 |
kHz |
|
Minimal Pulse Width |
2.5 |
- |
- |
μS |
|
Minimal Direction Setup |
5.0 |
- |
- |
μS |
|
Isolation resistance |
500 |
- |
|
Mohm |
|
Pin Function |
Details |
|
PUL |
Pulse signal: Pulse active at rising edge; 4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. Minimal pulse width of 2.5μs. Add a resistor for current-limiting at +12V or +24V input logic voltage (1K for +12V, 2k for +24V). The same as DIR and ENA signals. |
|
DIR |
DIR signal: This signal has low/high voltage levels to represent two directions of motor rotation. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. Minimal direction setup time of 5μs. Swapping the connection of two wires of a coil (e.g. A+ and A-) to the drive will reverse motor direction. |
|
ENA |
Enable signal: This signal is used for enabling/disabling the drive. High level +5V (NPN control signal) for enabling the drive and low level for disabling the drive. PNP and Differential control signals are on the contrary, namely Low level for enabling. By default it is left UNCONNECTED (ENABLED).. |
Connector P2 Configurations
|
Pin Function |
Details |
|
A+, A- |
Motor Phase A connections. Connect motor A+ wire to A+ Pin; motor A- wire to A |
|
B+, B- |
Motor Phase B connections. Connect motor B+ wire to B+ Pin; motor B- wire to B |
|
AC |
Power supply input 18~80VAC or 24-110 VDC; No polarity |
|
AC |
|
Microstep |
Steps/rev.(for 1.8o motor) |
SW5 |
SW6 |
SW5 |
SW6 |
|
2 |
400 |
ON |
ON |
ON |
ON |
|
4 |
800 |
OFF |
ON |
ON |
ON |
|
8 |
1600 |
ON |
OFF |
ON |
ON |
|
16 |
3200 |
OFF |
OFF |
ON |
ON |
|
32 |
6400 |
ON |
ON |
OFF |
ON |
|
64 |
12800 |
OFF |
ON |
OFF |
ON |
|
128 |
25600 |
ON |
OFF |
OFF |
ON |
|
256 |
51200 |
OFF |
OFF |
OFF |
OFF |
|
5 |
1000 |
ON |
ON |
ON |
OFF |
|
10 |
2000 |
OFF |
ON |
ON |
OFF |
|
20 |
4000 |
ON |
OFF |
ON |
OFF |
|
25 |
5000 |
OFF |
OFF |
ON |
OFF |
|
40 |
8000 |
ON |
ON |
OFF |
OFF |
|
50 |
10000 |
OFF |
ON |
OFF |
OFF |
|
100 |
20000 |
ON |
OFF |
OFF |
OFF |
|
200 |
40000 |
OFF |
OFF |
OFF |
OFF |
|
|
|
|
|
|
|
Current Settings
For a given motor, higher drive current will make the motor to output more torque, but at the same time causes more heating in the motor and drive. Therefore, output current is generally set to be such that the motor will not overheat for long time operation. Since parallel and serial connections of motor coils will significantly change resulting inductance and resistance, it is therefore important to set drive output current depending on motor phase current, motor leads and connection methods. Phase current rating supplied by motor manufacturer is important in selecting drive current, however the selection also depends on leads and connections. The first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor’s required current.
|
|
RMS Current |
SW1 |
SW2 |
SW3 |
|
2.40A |
1.70A |
ON |
ON |
ON |
|
3.08A |
2.18A |
OFF |
ON |
ON |
|
3.77A |
2.67A |
ON |
OFF |
ON |
|
4.45A |
3.15A |
OFF |
OFF |
ON |
|
5.14A |
3.64A |
ON |
ON |
OFF |
|
5.83A |
4.12A |
OFF |
ON |
OFF |
|
6.52A |
4.61A |
ON |
OFF |
OFF |
|
7.20A |
5.09A |
OFF |
OFF |
OFF |
Notes: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting, particularly under high speed condition.