- Отрасли: Automation
- Number of terms: 8432
- Number of blossaries: 0
- Company Profile:
Rockwell Automation, Inc. provides industrial automation power, control, and information solutions.
Pertaining to a control that energises its output when the light intensity on the photo detector reaches a sufficiently low level.
Industry:Automation
1) A data terminal that has some internal processing capability (a Microprocessor) for manipulating data. 2) Contrasted with dumb terminal
Industry:Automation
A method of reversing motor rotation by use of two separate contactors, one of which produces rotation in one direction and the other produces rotation in the opposite direction. The contactors are electrically (and mechanically) interlocked so that both cannot be energised at the same time.
Industry:Automation
An output circuit with dual output switching devices such that when one is on the other is off.
Industry:Automation
The signal on one circuit emerging on an adjacent circuit as interference.
Industry:Automation
1) The length of time for a cyclical operation to complete one full cycle. For example, the length of time from one point in a cyclical wave form to the same point in the next cycle of the wave form. 2) Compare duration and interval
Industry:Automation
A semiconductor device consisting of an array of photo-sensors that generate an electrical charge proportional to the amount of light striking them.
Industry:Automation
Pertaining to a control that energises its output when the light intensity on the photodetector reaches a sufficiently high level.
Industry:Automation
1) A device for changing ac to dc. This is accomplished through use of a diode rectifier or thyristor rectifier circuit. 2) A device for changing ac to dc to ac (e.g., adjustable frequency drive). A “frequency converter,” such as that found in an adjustable-frequency drive, consists of a rectifier, a dc intermediate circuit, an inverter, and a control unit.
Industry:Automation
A method of serial transmission where characters may be transmitted at unequal time intervals. It requires that each character contain start/stop timing elements (extra bits) so the receiver can properly detect the start and end of each character. 2) Contrasted with synchronous transmission
Industry:Automation
