摘要 |
In a method of and an apparatus for controlling a fluid bearing, a state in which the power source of a control system is switched off (an open state) or a state in which a predetermined pressure different from the OFF condition is provided (a stopped state) is established when an abnormal condition in which the pressure reaches a predetermined value exceeding a servo-controlled upper or lower limit occurs, whereby the pressure of the fluid bearing is held within a safe pressure range. |