| 摘要 |
PURPOSE:To continue operation in any case by connecting a controller for linkage operation and an inverter to each other when a switch to an AC power system is closed and, on the other hand, connecting a controller for independent operation and the inverter to each other when the switch is opened. CONSTITUTION:An opening or closing signal for connecting to or disconnecting from an AC power system is inputted to a control changeover device 11 via a switch 5 for connecting to or disconnecting from an AC power system, respectively. When the switch 5 is closed, the control changeover device 11 connects a controller 10b for linkage operation and an inverter 2 to each other. On the other hand, when the switch 5 is opened, the control changeover device 11 connects a controller 10a for independent operation and the inverter 2 to each other. Therefore, the operation can be continued regardless of the opening or closing condition of the switch 5. |
