21 Terms
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Industrial automation
Industry: Automation
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Industrial automation
Four-quadrant operation
Automation; Industrial automation
In reference to a regenerative drive, the four combinations of forward and reverse rotation and forward and reverse torque.
Monitoring controller
Automation; Industrial automation
Used in an application where the process is continually checked to alert the operator of possible application malfunctions.
Bus topology
Automation; Industrial automation
A link topology in which all stations are connected in parallel to a medium. These stations are capable of concurrently receiving a signal transmitted by any other station connected to the medium.
Ac output module
Automation; Industrial automation
An I/O module that contains circuits that provide switching of ac power to machine/process load devices, based on backplane logic level dc signals. By implication, they are direct digital outputs.
Scaling
Automation; Industrial automation
The process of changing a quantity from one notation to another.
Regeneration
Automation; Industrial automation
1) For dc drives — the characteristic of a motor to act as a generator when the cemf is larger than the drive’s applied voltage. 2) For ac drives — when the rotor synchronous frequency is greater ...
Leading-edge triggering
Automation; Industrial automation
A programming technique of triggering some step by means of an off-to-on transition of an input signal. The off-to-on transition is considered the leading edge of the input pulse.
