CONTROL SYSTEM FOR CARTRIDGE LIBRARY DEVICE

摘要

PURPOSE:To prevent a cartridge and a mechanism part from being damaged when an earthquake occurs by stopping the operation of an accessor robot transiently when the scale of the earthquake indicates a value less than a regulated value, operation the robot again after the earthquake is over, and informing device abnormality to a host device when it indicates the value exceeding the regulated value. CONSTITUTION:The output of an earthquake detecting sensor 9 is checked when the accessor robot 4 makes access the cartridge, and when the earthquake with the value less than the regulated value is detected, a library controller 6 issues a stoppage instruc tion to the operation of the robot. The robot 4 receiving the stoppage instruction returns a hand extending to a housing rack 2 side to make access the cartridge from the housing rack 2 keeping the cartridge if it holds the cartridge and at a state as it is if not holding the cartridge. After that, the library control 6 monitors the output of the earthquake sensor 9, and restarts the opertion of the robot after the earthquake is over. Also, when the earthquake with the value exce eding the regulated value, the device abnormality is informed to the host device. In such a way, it is possible to prevent the cartridge and the mechanism part damaged even when the earthquake occurs.