Title:
LOAD CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP3884029
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a load control system that can effectively suppress the deterioration and the breakage of a circuit element in a control device after the generation of an abnormality caused by the damage or the like of a load.
SOLUTION: A microcomputer 11 generates an operation stop state by writing an abnormal state generation memory into an EEPROM 16 when a protection circuit 14 is operated by the information (fan motor current) of the drive state of a fan motor 20 supplied by a drive state monitoring means 13, writes a release switch operation memory by erasing the abnormal state generation memory when a stop state releasing switch 23 is operated during the operation stop state, applies an inspection voltage to the fan motor 20 if the release switch operation memory exists when operating the fan motor 20, performs normal operation by erasing the release switch operation memory when the load drive state is determined to be normal, writes the abnormal state generation memory by erasing the release switch operation memory when the load drive state is determined to be abnormal, and holds the operation stop state.
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| JPS52145717 | MOTOR OPERATION CONTROL UNIT |
Inventors:
Inside force Yoshifumi
Application Number:
JP2004155972A
Publication Date:
February 21, 2007
Filing Date:
May 26, 2004
Export Citation:
Assignee:
Hanshin Electric Co., Ltd.
International Classes:
H02P1/16; H02P3/06; G05F1/10; H02P29/00; (IPC1-7): H02P3/06; G05F1/10; H02P1/16; H02P5/00
Domestic Patent References:
| JP2003153570A | ||||
| JP2003153567A | ||||
| JP61161924A |
Attorney, Agent or Firm:
Kenzo Fukuda
Shinichi Fukuda
Takemichi Fukuda
Shinichi Fukuda
Takemichi Fukuda
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