FAILURE DETECTING DEVICE FOR ELEVATOR MONITOR PANEL

PURPOSE: To quickly and accurately discover a burnt-out lamp with small electric power by simultaneously lighting multiple indicator lamps, then transiently lighting all indicator lamps in sequence, and lighting an indicator lamp adjacent to a burnt-out indicator lamp. CONSTITUTION: A lamp test button 1 is connected to a lighting control circuit 2, thyristors n1 -nn are connected to signal output ports N1 -Nn provided on the lighting control circuit 2, and lamps 3-1 through 3-n installed in indicator lamps 3 are connected. When a signal is outputted from the lighting control circuit 2 to the signal output port N1 , for example, the connected thyristor n1 is turned on, and the lamp 6-1 is turned on. Multiple indicator lamps 3 are concurrently lighted in sequence. An indicator lamp adjacent to a burnt-out indicator lamp can be kept on, and the position of the burnt-out lamp can be accurately found in a short time.