ROCKWELL AUTOMATION TECHNOLOGIES, INC.
|ROCKWELL AUTOMATION TECHNOLOGIES, INC. Patent applications|
|Patent application number||Title||Published|
|20150253381||SYSTEMS AND METHODS FOR TESTING MOTOR DRIVES - Systems and methods for testing a motor drive are disclosed. The techniques enhance motor drive testing by not using a dyne-unit, thereby reducing the initial installation costs, maintenance costs, and size of the setup. The setup may include a rectifier and an inverter configured to operate in an active-reactive power control mode during testing under a simulated load by generating the corresponding active (P) and reactive (Q) power (e.g., torque and flux, respectively). The active-reactive power control mode may receive a desired P and Q and determine one or more gate drive signals to provide to switches in the rectifier and/or the inverter based on the desired P and Q, where the gate drive signals are configured to operate the rectifier and/or the inverter under a simulated load. The gate drive signals may be transmitted to the rectifier and/or the inverter accordingly.||09-10-2015|
|20150248115||CONFIGURATION-ENABLED MOTOR DRIVE SAFETY - A safety-rated industrial device, such as a motor drive, is provided with a safety subsystem that is initially bypassed as a factory default mode. While the safety subsystem is disabled, the device operates as a standard non-safety device, allowing users to perform operations with the device (e.g., turning a motor in the case of motor drives) without requiring safety input devices or a safety controller to be connected to the device. The device continues to operate as a standard non-safety device until a proper safety configuration is applied to the device, whereby the device's safety subsystem is retentatively enabled and the device begins operating as a safety-rated device. While the safety subsystem is enabled, certain device operations that were permitted during standard mode independently of an attached safety controller or safety input devices are made contingent on the monitored status of an associated safety system.||09-03-2015|
|20150244107||INPUT/OUTPUT MODULE - An input/output (I/O) device for an automation control system may include a terminal base configured to physically and communicatively connect with an I/O module. The I/O module may include I/O communication circuitry and a latching mechanism that may allow the securing or releasing of the I/O module from the terminal base. The latching mechanism may include a release lever urged to a biased latched position by integral springs and a latch element with latching extensions configured to interact with the terminal base.||08-27-2015|
|20150241503||FILTER CAPACITOR DEGRADATION IDENTIFICATION USING COMPUTED CURRENT - Methods and apparatus are presented for detecting filter capacitor degradation in a power converter in which filter circuit branch currents and voltages are concurrently measured, nominal current values are automatically computed according to the measured voltages, the operating frequency and nominal capacitance values, and current change values are calculated based on the difference between the measured currents and the calculated nominal currents, and the change values are evaluated to selectively identify filter capacitor degradation conditions in the filter circuit.||08-27-2015|
Patent applications by ROCKWELL AUTOMATION TECHNOLOGIES, INC.