- Industry: Automation
- Number of terms: 8432
- Number of blossaries: 0
- Company Profile:
Rockwell Automation, Inc. provides industrial automation power, control, and information solutions.
A machine with ventilating openings that permit passage of external cooling air over and around the windings of the machine (NEMA Standard).
Industry:Automation
An instruction required on the last rung of a transition file of a sequential function chart.
Industry:Automation
The process of reducing the shunt field excitation on a dc motor to a level lower than its rated hot field current value. This is typically done dynamically while the motor is running under regulator control to allow motor speeds higher than the motor’s base speed. The motor’s torque capability decreases as the field is weakened, which allows constant horsepower to be delivered to the load at a given armature current level.
Industry:Automation
1) In a motor, the arrangement of laminations on a rotor or armature to provide a slight angular pattern of their slots with respect to the shaft axis. This pattern helps reduce low-speed cogging in an armature and minimise induced vibration in a rotor, as well as reduce associated noise. 2) In a split axis configuration, the difference between the positions of the two ball nuts of the split axis.
Industry:Automation
A quantity that denotes both magnitude and direction in relation to a given frame of reference. Examples of quantities that are vectors are displacement, velocity, force, and magnetic intensity.
Industry:Automation
Kilo. A prefix used with units of measurement to designate a multiple of 1000.
Industry:Automation
Usually something that provides a logical function. 1) Relays and motor starters controlled by outputs (control elements). 2) Switches and sensors connected to inputs (feedback elements). 3) The matrix items of a ladder logic rung, reflecting the results of executing programme instructions (ladder logic elements). 4) In a general sense, anything that can be identified as a part of a larger entity — as with a data element being any addressable unit of data as long as it can be identified as a sub-unit of a larger unit of data (a bit as a data element of a word, structure or file; a word as a data element of a structure or file; a structure as a data element of a file).
Industry:Automation
A mandatory hard-wired relay that can be de-energized by any series-connected emergency stop switch. Whenever the master control relay is de-energized, its contacts open to remove the power source from all I/O circuits, sensors and actuators.
Industry:Automation
