OPEN SHOWCASE, AND CENTRALIZED CONTROLLING SYSTEM

摘要

PROBLEM TO BE SOLVED: To perform a proper rotation velocity control in response to the change in the external environment in the rotation velocity control for a circulation fan which is provided in an open showcase.;SOLUTION: This open showcase is equipped with a controller 100. The controller 100 is equipped with a control section 101 which performs the operation control of one or a plurality of fan motors, a communication port 102 which is connected to a centralized managing device through a communication wire, a sensor inputting section 103 which is connected to a temperature sensor or the like, a plurality of controlling signal outputting sections 104, an operation section 105 and a displaying section 106. The control section 101 is equipped with a schedule managing means 108 and an external environment judging means 109 as a fan motor controlling means 107 which performs the schedule setting and the operation control of the fan motors in response to the external environment. Then, the rotation velocity control for respective fan motors which are connected to the controlling signal outputting section 104 is performed in response to a schedule which is set in advance by a manager or the like, and the measurement information or the like of the outside air temperature sensor.;COPYRIGHT: (C)2005,JPO&NCIPI