Title:
RESET SYSTEM FOR POWER FAILURE OR THE LIKE OF NUMERICAL CONTROLLER
Document Type and Number:
Japanese Patent JPS5557907
Kind Code:
A
Abstract:
PURPOSE:To meke it possible to manufacture a power failure reset system easily at low cost by finding the command block sequence number of a command tape interrupted by utilizing a numerical controller itself. CONSTITUTION:In case that operation is interrupted due to a power failure, command tape 6 is rewound adequately and power failure reset switch 9 is operated to drive tape reader 5. As a result, collation part 11 collates a command block sequence number in process of execution at the time of the power failure stored in command block sequence number memory part 10 with a read command block sequence number on tape 6 and tape 6 stops where the both agree, so that tape 6 will be set again. Then, driving controlled machine 4 continues the operation by restarting the execution from the unexecuted part of an interrupted instruction since data when the power is cut off are all retained.
Inventors:
IIDA HIDEMASA
KOIKE HIROMICHI
TANAKA HITOSHI
KOIKE HIROMICHI
TANAKA HITOSHI
Application Number:
JP13198578A
Publication Date:
April 30, 1980
Filing Date:
October 26, 1978
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G05B9/02; G05B19/18; (IPC1-7): G05B19/18