In the drawing machine run time, the reasons for the acceleration button function failure, unable to speed up the phenomenon?

When such problems arise, we must first rule out hardware failure, that is, speed up the button action to ensure the corresponding PLC input when the indicator light, and then examine the situation described below and resolved:


. Through human-machine interface, HMI (such as touch screen, OP panel) to check whether the facilities in a "broken lift," "protective shield to lift" effective state run, if in this state, for security requirements and guarantee the control software program has been on the maximum operating speed limit can not be arbitrary speed operation;


. Because of the design reasons, the drum machine the most high-speed and pace of work is relatively fixed, in the normal run time, if the speed of a reel has reached its most high-speed, in order to ensure the safe operation of equipment, then the control program will automatically limit acceleration;


. Equipment in the before and after the linkage mode of operation, its maximum operating speed by the control procedures restrictions, can not be added, deceleration operation;


. When the equipment, heavy machine load or reach full capacity operation, the device speed will be automatically restricted;