Molten level control apparatus for continuous casting machine, method for controlling level of molten level of continuous casting machine and computer program

摘要

PROBLEM TO BE SOLVED: To suppress an excessive correction of an opening command difference as much as possible when pulses are saturated in controlling, with a pulse motor, an opening of an actuator that adjusts an injection rate of a molten metal to be injected from a tundish into a casting mold.SOLUTION: When an integer value N calculated by a divider 105 does not within a range of the lower limit-NMAX to the upper limit NMAX to saturate pulses, a remainder MVA of a value representing a correction value MVB of an opening command difference divided by manipulated variable N of a stopper 13 is not added to the opening command difference MV during a next control period of a level controller 100.