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Stepper Motor Driver
The SD-2H086MB is an economical microstepping driver .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 5.86A | 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:1KG |
2. Pin Assignment and Description The SD-2H086MB has two connectors ,P1for control signals connections,and connector P2 for power and motor connections .The following tables are brief descriptions of the two connectors of the SD-2H086MB.More Detailed descriptions of the pins and related issues are presented in section 7,8,9. Connector P1 Configurations
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 5s.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 5s 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 |
Electrical Specifications
| Paraneters | SD-2H086MB | |||
| Min | Typical | Max | Unit | |
| Output current | 1.29 | - | 5.86(rms) | A |
| Supply voltage((DC) | 20 | 68 | 80 | VDC |
| Logic signal current | 6 | 10 | 30 | mA |
| Pulse input freauency | 0 | - | 200 | KHz |
| Isolation resistance | 500 | M | ||
Don't hesitate to contact with me if any mroe questions.
2 phase and 4 phase stepper motor driver and controller