Abstract:
A method for operating a winch comprising a winch drum (20) for spooling a spoolable medium (10) for mooring a vessel, comprising:monitoring a tension of the spoolable medium (10) and when tension of the spoolable medium (10) is higher than a first upper tension threshold (T1 u) or lower than a first lower tension threshold (T11), initiating driving of the winch drum (20), wherein during the driving of the winch drum (20), at least when the monitored tension of the spoolable medium (10) is between a second upper tension threshold (T2u), which has a value equal to or lower than the first upper tension threshold (T1 u) but higher than the predetermined tension set point (Sp), and a second lower tension threshold (T21), which has a value equal to or higher than the first lower tension threshold (T11) but lower than the predetermined tension set point (Sp), an absolute value of the driving speed of the winch drum is proportional to a difference between the monitored tension and the predetermined tension set point (Sp); and in response to the monitored tension being, during the driving of the winch drum (20), between the second upper tension threshold (T2u) and the second lower tension threshold (T21) for a second predetermined delay, stopping the driving of the winch drum.
Abstract:
The invention relates to a cooling apparatus, comprising a first evaporator section (6) with first channels, and a first condenser section (8) with second channels. In order to provide adequate cooling for electric components the cooling apparatus further comprises a second evaporator section (10) with third channels, and a base plate (11) with a first surface (12) for receiving a heat load from electric components (13). The first condenser section (8) is in fluid communication with the second evaporator section (10) for receiving fluid from the second evaporator section, for passing heat from the fluid to surroundings and for returning fluid to the second evaporator section.
Abstract:
A method comprises a network apparatus (105, 109) requesting (202, 203) and receiving (205, 206), from an industrial automation device (101) via a communications network, identification information on the industrial automation device (101) regarding at least one characteristic of the industrial automation device (101). Based on the receiving, an interaction specification is retrieved (207) regarding the industrial automation device (101) from a database, the interaction specification indicating at least one protocol for interaction between the network apparatus (105, 109) and the industrial automation device (101). The at least one protocol is utilized (208, 209, 211, 212) for interacting between the network apparatus (105, 109) and the industrial automation device (101) via the communications network, to read and write (210) information supported by at least one of the industrial automation device (101) and a memory device connected to it.
Abstract:
A gate driver circuit and a method of operating a gate driver circuit. The gate driver circuit comprising a high auxiliary voltage rail 1 and a low auxiliary voltage rail 2 for receiving high auxiliary voltage and low auxiliary voltage, output stage connected to the auxiliary voltage rails and comprising a control input 3 and an output terminal for providing an output voltage of the gate driver, plurality of series connections of controllable switches S1-S8 and resistive components R1-R8, wherein a first part of the plurality of series connections is connected between the high auxiliary voltage rail and control input of the output stage, and a second part of the plurality of series connections is connected between the low auxiliary voltage rail and control input of the output stage, and a control circuit for controlling the controllable switches for providing a control voltage and a control current to the control input of the output stage.
Abstract:
A gate drive circuit adapted to control a power semiconductor component, the gate drive circuit comprising a gate driver connectable to a positive auxiliary voltage (V+) and to a negative auxiliary voltage (V-), the gate drive circuit comprising a feedback circuit having an inductive coupling element for providing a feedback signal, wherein one end of the feedback circuit having the inductive coupling element is connected to a known reference potential and the other end of the feedback circuit is connected to the gate driver, and the inductive coupling element is inductively coupled to the main current path of the power semiconductor component for providing feedback signal to the gate driver based on the change rate of the current of the power semiconductor component for limiting the change rate of the current of the power semiconductor component.
Abstract:
To provide as data rate independent user experience as possible for remote service, function descriptions are associated with identifiers, and a function plan transmitted between a service center and a user apparatus comprises the identifiers but the function plan outputted in the user apparatus comprises the function descriptions.
Abstract:
The present disclosure describes a method and an apparatus implementing the method for estimating an operating state of a positive displacement compressor. The method comprises an identification phase and an estimation phase. The identification phase comprises performing a plurality of identification runs to pressurize the pressure system. For each identification run, a characteristics curve is determined. The estimation phase comprises determining the operating state of the compressor on the basis of the determined characteristics curves.
Abstract:
A frequency converter comprises energy transfer means capable of wireless inductive power transfer to a wireless terminal device placed to an inductive charging position of the frequency converter. In response to recognising that the terminal device is placed to the charging position, an identification procedure is carried out between the frequency converter and the terminal device via a wireless connection established between the frequency converter and the terminal device. If based on the identification procedure it is determined that the terminal device is an authorized terminal device, the method comprises displaying, on a display of the frequency converter, a user interface of the frequency converter, such that the frequency converter is controllable by a user by means of interactive elements displayed on the user interface.
Abstract:
A method comprises receiving, in a local terminal device of a communication system, a set of instructions related to a frequency converter, the set of instructions having been transmitted from a remote terminal device via at least one network node. The local terminal device displays information on the received set of instructions. The local terminal device may detect a predetermined user input, and in response to the detecting, the local terminal device causes transmission of control data to the frequency converter via a communications link established between the local terminal device and the frequency converter, if the user input indicates that the user of the local terminal device approves the execution of the set of instructions in the frequency converter, the control data commanding the frequency converter to execute the set of instructions in the frequency converter.