Abstract: Techniques for diagnosing failures in a digital solenoid I/P converter are provided herein. A controller of the I/P converter may apply a fixed voltage to an I/P coil of the I/P converter, causing an armature to move from an off-position to an on-position in a properly-functioning I/P converter. The controller may receive an indication of whether a digital logic line trip has occurred, indicating that a current for the I/P coil has reached a desired maximum current level. The controller may remove the fixed voltage applied to the I/P coil when the maximum current level is reached or when a threshold period of time has elapsed from the application of the fixed voltage to the I/P coil. The controller may diagnose, based on whether the digital logic line trip occurred prior to removing the fixed voltage, a failure in the I/P converter.

Abstract: Techniques for diagnosing failures in a digital solenoid I/P converter are provided herein. A controller of the I/P converter may apply a fixed voltage to the I/P converter, causing an armature to move from an off-position to an on-position in a properly-functioning I/P converter. The controller may receive an indication of whether a digital logic line trip has occurred, indicating that a current for the I/P coil has reached a desired maximum current level, and an elapsed time from the application of the fixed voltage. The controller may compare the amount of time elapsed from the application of the fixed voltage to an expected amount of elapsed time from the application of the fixed voltage to the I/P coil after which a digital logic line trip will occur for a properly functioning I/P coil and diagnose, based on the comparison, a failure in the I/P converter.

Abstract: Techniques for diagnosing failures in a digital solenoid I/P converter are provided herein. A controller of the I/P converter may apply a fixed voltage to the I/P converter, causing an armature to move from an off-position to an on-position in a properly-functioning I/P converter. The controller may receive an indication of whether a digital logic line trip has occurred, indicating that a current for the I/P coil has reached a desired maximum current level, and an elapsed time from the application of the fixed voltage. The controller may compare the amount of time elapsed from the application of the fixed voltage to an expected amount of elapsed time from the application of the fixed voltage to the I/P coil after which a digital logic line trip will occur for a properly functioning I/P coil and diagnose, based on the comparison, a failure in the I/P converter.

Abstract: Techniques for diagnosing failures in a digital solenoid I/P converter are provided herein. A controller of the I/P converter may apply a fixed voltage to an I/P coil of the I/P converter, causing an armature to move from an off-position to an on-position in a properly-functioning I/P converter. The controller may receive an indication of whether a digital logic line trip has occurred, indicating that a current for the I/P coil has reached a desired maximum current level. The controller may remove the fixed voltage applied to the I/P coil when the maximum current level is reached or when a threshold period of time has elapsed from the application of the fixed voltage to the I/P coil. The controller may diagnose, based on whether the digital logic line trip occurred prior to removing the fixed voltage, a failure in the I/P converter.

Abstract: A material handling system has an automated storage and retrieval system (AS/RS) with vertically spaced levels storing articles. Each level has at least one pickup and deposit (P/D) station serviced by a shuttle and that is horizontally positioned to define a ramped orientation with a wave conveyor to move products selectively in at least one flow direction to each of the P/D stations. An article transfer mechanism at each P/D station respectively moves an article in a selected at least one direction between the wave conveyor and the respective P/D station. A controller selectively moves the selected articles onto the wave conveyor by respective article transfer mechanisms in coordination with movement of the wave conveyor to create a sequenced flow of selected articles. An order preparation system can receive the sequenced flow.

Abstract: A material handling system has an automated storage and retrieval system (AS/RS) with vertically spaced levels storing articles. Each level has at least one pickup and deposit (P/D) station serviced by a shuttle and that is horizontally positioned to define a ramped orientation with a wave conveyor to move products selectively in at least one flow direction to each of the P/D stations. An article transfer mechanism at each P/D station respectively moves an article in a selected at least one direction between the wave conveyor and the respective P/D station. A controller selectively moves the selected articles onto the wave conveyor by respective article transfer mechanisms in coordination with movement of the wave conveyor to create a sequenced flow of selected articles. An order preparation system can receive the sequenced flow.