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  Drivers And Encoders Home > Products > Drivers And Encoders  
SD-2H086MB 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

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