| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a connection detecting device capable of simultaneously detecting connection state of a plurality of connectors with one voltage of signals for connection detecting. <P>SOLUTION: A plurality of connectors 3-7 are mounted on a control substrate 1. The control substrate 1 and each load are connected with each other by a plurality of bundled lines. A connector 26 for wires being jointed to the connector 3 is set on one end part of the bundled lines 25 and a connector 27 for wires being jointed to the connector 23 which is mounted on the connector 3 is set on another end part. Signal lines 25a for connection detecting are involved in the bundled lines 25, and signal lines 12 in the control substrate 1 which connects to each signal line for connection detecting are connected to a power source 18 through a resistor r for pullups. The detection voltage Vdet of the signal line 12 is input to an A/D port 19 and converted to a digital value. A CPU 17 determines connector connection state based on the digital value of the detection voltage Vdet. <P>COPYRIGHT: (C)2009,JPO&INPIT |
