| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress generation of faults caused by stopping at a one-phase excitation state when a stepping motor for driving accessories is driven by half step drive.SOLUTION: In a game machine, a CPU of a lamp control substrate rotates a stepping motor for driving accessories by specified steps in a CW direction (S2105: YES), and then, when making a transition to stop excitation (S2107: YES), determines whether or not an excitation pattern at the time when the rotation in the CW direction is stopped is in a one-phase excitation state (S2108). In addition, when the rotation is stopped in the one-phase excitation state, the rotation is advanced by one step in the CW direction to be in a two-phase excitation state (S2109-S2110), and stop excitation is performed in the two-phase excitation state. In a case where the excitation pattern at the stopping is in the two-phase excitation state, the stop excitation is performed as it is.</p> |
