Abstract: A motor drive including an inverter and control logic and a method implemented by the control logic to protect an inverter. The method includes determining a temperature value of a temperature associated with the inverter; preventing restarting of the inverter if the temperature value exceeds a first temperature threshold; and preventing restarting of the inverter if the temperature value exceeds a second temperature threshold that is smaller than the first temperature threshold and the inverter was shut down due to a high load condition.

Abstract: A method implemented by a motor drive to drive a pump of a liquid pumping system. The method includes receiving a wetness signal from a wetness sensor; determining based on a wetness signal if moisture has been detected by the wetness sensor; discontinuing pumping by the pump responsive to determining that moisture has been detected; after discontinuing pumping, determining if moisture has been detected during a predetermined delay; and restarting pumping if moisture has not been detected during the predetermined delay.

Abstract: A system and a method for driving an electrical motor with a drive unit including a wireless transceiver. A user may wirelessly couple a user input device with the transceiver, and use a drive application to, optionally, update configuration information including drive control parameters, update application logic residing in the drive unit, and/or upload performance parameters.

Abstract: A system and a method for driving an electrical motor with a drive unit including a wireless transceiver. A user may wirelessly couple a user input device with the transceiver, and use a drive application to, optionally, update configuration information including drive control parameters, update application logic residing in the drive unit, and/or upload performance parameters.

Abstract: Apparatus comprising a flow carrier connectable in a liquid flow system including an electric motor-pump unit and a conduit for conveying a pumped liquid to a liquid utilization apparatus. The flow carrier is connectable in the conduit and includes an opening which exposes the liquid flowing through the carrier. A heat sink or cold plate is located on the carrier over the opening, the heat sink covering the opening and having a wet side exposed to the liquid. The heat sink further includes a dry side, and heat generating electrical control components are secured to the dry side. A sensor is also mounted on the heat sink and responds to a characteristic, such as the pressure, of the liquid. A heat insulating layer extends around the control components and the sensor and covers the dry side of the heat sink, the layer preventing condensation. The sensor and the control components are operable to control the motor-pump unit.

Abstract: An electronically controlled ingredient dispensing system in hot or cold vending machines uses a voltage ramp generator and a volume controller for correlating a quantity of dispensed ingredients with the voltage ramp output. Circuit elements are provided to latch-in circuits corresponding to each ingredient after a coin triggered relay switch and beverage selection switches are actuated. A voltage comparator circuit functions to compare a timing circuit voltage of increasing magnitude with a manually variable reference voltage (indicative of ingredient quantity) and activates an ingredient dispensing mechanism when the compared voltage reaches a preselected value and deactivates the dispensing mechanism when the voltage reaches a preselected higher value. Further circuit elements are provided to increase the quantity of dispensed ingredients upon activation of an extra ingredient selection switch.