The password of the dispensing machine should be changed through the teaching box, enter the original password, and enter the operation interface to modify.
If you forget the original password and can't get in, find the manufacturer to crack it. Generally, there is a maximum permission password, which can be obtained by finding the manufacturer.
The teaching box is attached to the motion control card. Pay attention to the matching voltage, the general voltage is 5V, if the voltage is too low it may not be displayed. The voltage can be adjusted higher as appropriate.
If the above is not enough, it may be that the teaching box is broken, then replace it with a new one, and the general teaching box is not expensive. The above is a summary of Xinhua glue filling machine based on experience, I hope to help you!