① The internal contact of electronic ruler is poor, which may be due to loose internal contact or barbed contact.
② There is something wrong with the proportional valve.
(3) The current adjustment of the amplifier board is too large.
Solution to the problem that the mold opening data of injection molding machine exceeds the set position;
① Check the contacts in the electronic scale.
② Replace the electronic ruler.
(3) The quick die opening position is advanced, the quick and slow die pressing speeds are reduced, and the pressure and speed are reduced by 20mm before the die opening.