| 摘要 |
PURPOSE:To prevent a demand system from overdemand precisely by automatically stopping a previously set auxiliary machine simultaneously with system-down. CONSTITUTION:A central controller 5 collectively decides information sent from terminal control devices 4a-4d or that inputted through a keyboard to determine the auxiliary machines 2a-2d for the freezers/air conditioners to be interrupted and sends an interruption signal to the terminal control devices 4a-4d. If a demand controller 1 is failed, the controller 5 discriminates the failure and sends a forced stop signal to the terminal control devices 4a-4d for the auxiliary machines 2a-2d to be stopped at the trouble of the demand controller 1 set in the controller 5 through the keyboard. |
