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Title:
CONNECTION CIRCUIT OF CONNECTION DEVICE
Document Type and Number:
Japanese Patent JP2018143029
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a connection circuit of a connection device that can detect miswiring of the connection device that can protect against overcurrent promptly while preventing the melting of a fuse in the occurrence of miswiring etc.SOLUTION: A connection circuit of a connection device comprises: at least one interface 150a-150n for connecting the connection device; at least one power source unit 110 for supplying power source to the interface through a power supply line 220; at least one fuse 120 that is provided between the power source unit and the interface; at least one ground line 250 for grounding the interface; and a power source control unit 100 for controlling the output for the power source unit. The power source control unit: performs a previous wiring check operation when receiving a power source ON signal 200; detects whether or not the gap between a power supply line and a ground line is short-circuited; and outputs an operation command from the power source control unit to the power source unit when the gap between the power supply line and ground line is not short-circuited.SELECTED DRAWING: Figure 1

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Inventors:
FUJIMOTO YASUO
Application Number:
JP2017034830A
Publication Date:
September 13, 2018
Filing Date:
February 27, 2017
Export Citation:
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Assignee:
FANUC LTD
International Classes:
H02H11/00; G01R31/02
Domestic Patent References:
JP2000105616A2000-04-11
JPH10124154A1998-05-15
JP2002170444A2002-06-14
JPS53157839U1978-12-11
JP2013032946A2013-02-14
JP2006054833A2006-02-23
Attorney, Agent or Firm:
Aiwa Patent Business Corporation