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Interface and its definition
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Fig 2
25-pin parallel port control is defined as follows:
| DB25 control pin (PIN) | The pin of the drive board | Comment |
| EN | All axes enable | |
| STEPX | X(First axis) pulse signal | |
| DIRX | X(First axis) direction of the signal | |
| STEPY | Y(Second axis)pulse signal | |
| DIRY | Y(Second axis)direction of the signal | |
| STEPZ | Z(Third axis) pulse signal | |
| DIRZ | Z（ The third axis) direction of the signal | |
| LIMIT-1 | Limit input interface 1 | |
| LIMIT-2 | Limit input interface 2 | |
| LIMIT-3 | Limit input interface 3 | |
| LIMIT-4 | Limit input interface 4 | |
| Relay | ||
| Blank | ||
| STEPB- | B(4th axis) pulse signal | |
| DIRB- | B(4th axis) direction of the signal | |
| 18-25 | GND |
6. The 4th aixs expansion port connection:
Fig 3
7. The limit switch port connection:
Fig 4
The setting of current, microstepping and current-decay mode adjustable
