PURPOSE: To provide a failure diagnosing device of a grain dryer which can rapidly identify a fault and can provide an instruction of its appropriate corrective action.
CONSTITUTION: The detecting signal indicating the condition of each part of a combustion system output from a protect relay P/R for controlling each part thereof is input into a control substrate 1 through a power substrate 3. In the event of a failure, the control substrate 1 displays on an input/output device 2 an instruction of the corrective action to the user or request for the user's decision as to the failure based on the conditions of the detecting signal. After taking a corrective action or making a decision according to the display, the user inputs its result into the input/output device 2. Based on the input signal and the detection signal from the control substrate 1 and the input/output device 2, the fault is identified and an instruction of a corrective action on the fault is displayed on the input/output device 2.
ISHII SHIGEKI
SHINGYOJI NOBUYOSHI
MORIO SHUJI
YAMATAKE HONEYWELL CO LTD