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Welcome to wantaimotor store 
This item includes:
4 PCS Stepper Driver with 7.8A replacing MD882,
1PC Breakout Board for free offering 
The Breakout Board is offered to you for free to buy this item above, so that you can set this kit up, and work in better condition.
1, Introduction
The DQ860MA is an economical microstepping driver based on patented technology of Wantai Motor .It is suitable for driving 2-phase 4-phase hybrid stepping motors .By using the advanced bipolar constant-current shopping technique ,it can output more speed and torque from the same motor,compared with traditional drivers ,such as L/R drivers .Its 3-state current control technology allows coil currents to be well controlled and with relatively small current ripple,therefore less motor heating is achieved.
Features
Low cost and good high-speed torque | 14 selectable resolutions |
Supply voltage up to +80VD | Suitable for-2-phase and 4-phase motors |
Output current up to 7.8A,5.86A rated current, 256Microstep | Dip switch current setting 8different values |
Optically isolated input signals | Pulse frequency up to 200KHz |
Automatic idle-current reductiOn | Small size (107*97*48),Weight:0.3KGS |
Pin FunctiOn | Details |
PUL+,PUL- | Pulse signal:In single pulse (pulse/direction)mode,this input represents pulse signal,effective for each rising or falling edge;4-5V when PUL-HIGH,0-0.5V when PUL-LOW.For reliable response ,pulse width should be longer than 5µs.Series connect resistors for current limiting when +12V or +24V used.
|
DIR+,DIR- | DIR signal:In pulse mode,this signal has low/high voltage levels,representing two directions of motor rotation;For reliable motion response,DIR signal should be ahead of PUL signal by 5µs at least.4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. |
ENA+
| Enable signal:This signal is used for enabling/disabling the driver.High level for enabling the driver and low level for disabling the driver. |
ENA- | Usually left unconnected (enabled) |
Connector P2 Configurations
Pin FunctiOn | Details |
Gnd | DC power ground |
+V | DC power supply,20-80VDC,Including voltage fluctuation and EMF voltage |
A+,A- | Motor Phase A |
B+ B-, | Motor Phase B |



2, Breakout Board DB25

Description:
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