| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in which, although an origin detecting operation performed at normal use is done so by supplying the minimum required number of pulses from a motor position because the motor position before the origin detecting operation is known, a more reliable origin detection is required because the motor position is unclear in cases such as after replacement of a control board.SOLUTION: Even though a motor actuation position is positioned anywhere in a fire power adjusting range at extinction of a gas burner if a complete origin detecting instruction is made to a control part, a complete origin detecting operation is performed by sending to a motor drive pulses having a pulse number or more capable of contacting and stepping out of a stopper from the position.SELECTED DRAWING: Figure 5 |
