| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary machine device which continues operation without trouble for a demanding user even if a trouble occurs on an inverter control board. <P>SOLUTION: A water supply device 1 as a rotary machine device includes a plurality of pumps 3, a plurality of inverters 5 which variably control a rotation frequency of a corresponding pump and a controller 6 controlling the plurality of inverters 5. The controller 6 includes a plurality of control boards 60a and 60b, each of which independently controls the plurality of inverters 5, and if a trouble occurs on either the control board 60a or the control board 60b during operation, the other standby control board 60b or control board 60a backups to control the plurality of inverters 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
