Abstract: A shuttle control for a storage and retrieval machine has a supervisory control mounted on the base of the storage and retrieval machine and a shuttle control mounted on the carriage of the storage and retrieval machine. The supervisory control receives shuttle operating commands and information signals and provides operating instruction signals for the shuttle to the shuttle control. The shuttle control receives the operating instruction signals from the supervisory control, produces operating information signals to the supervisory control, and controls the operation of a shuttle motor drive. A circuit having sliding contactors moving with the carriage on vertical slide bars mounted on the mast transmits operating instruction signals and information signals between the supervisory control and the shuttle control at a maximum transmission rate limited by the problems of transmitting the signals through the sliding contactors.

Abstract: A control system for a storage and retrieval machine is disclosed in which a supervisory control is responsive to operating commands from a remote source to provide operating instructions for the control of the base, carriage and shuttle of the storage and retrieval machine. Separate controls for the base, the carriage and the shuttle respectively contain base, carriage and shuttle operating parameters. The base, carriage and shuttle controls are responsive to operating instructions from the supervisory control to respectively control movement of the base, carriage and shuttle in accord with the associated base, carriage and shuttle operating instructions and parameters. A base drive, carriage drive and a shuttle drive are also provided and each include a drive control which produces drive control instructions.

Abstract: A control system for a storage and retrieval machine is disclosed in which a supervisory control is responsive to operating commands from a remote source to provide operating instructions for the control of the base, carriage and shuttle of the storage and retrieval machine. Control for the base contains base operating parameters and is responsive to base operating instructions from the supervisory control to control movement of the base in accord with the base operating instructions and the base parameters. Control for the carriage, which is movably mounted on a vertical mast of the storage and retrieval machine, contains carriage operating parameters and is responsive to the operating instructions to control movement of the carriage in accord with carriage operating instructions and the carriage operating parameters.