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Control Concepts Inc.
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Zero-Cross
The term zero-cross or synchronous operation of SCR's is derived from the fact that the SCR's are turned on only when the instantaneous value of the sinusoidal waveform is zero.
In zero-cross operation power is applied for a number of continuous half-cycles and then removed for a number of half-cycles to achieve the desired load power in the same manner as power would be controlled with a mechanical switching device.
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Episodes
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Control Panel: Quick Setup
Mar 13, 202000:03:38Tap to summarizeTutorial of the Quick Setup for a microFUSION SCR power controller using the Control Concepts Control Panel Software. Three Phase DC 3 Phase, Phase Angle: In phase-angle control, each SCR of the back-to-back pair is turned on for a variable portion of the half-cycle that it conducts. Power is regulated by advancing or delaying the point at which the SCR is turned on within each half cycle. Light dimmers are an example of Phase-Angle control.
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Basic Setup Part 1: FUSION SCR Power Controller Tutorial 07
Feb 18, 202000:05:41Tap to summarizeAn overview of basic setup and operation of a FUSION or Compact FUSION controller from Control Concepts, Inc. Topics covered include: 1. Mounting and grounding 2. Wiring ----- Connecting line power, control power, and load connections ----- P1 Overview ----- Wiring for Analog control ----- Wiring for Digital control 3. Controller Operation ----- Indicator LEDs ----- Analog control ----- Digital control
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Control Concepts Inc.
Jan 17, 202000:01:33Tap to summarizeZero-Cross The term zero-cross or synchronous operation of SCR's is derived from the fact that the SCR's are turned on only when the instantaneous value of the sinusoidal waveform is zero. In zero-cross operation power is applied for a number of continuous half-cycles and then removed for a number of half-cycles to achieve the desired load power in the same manner as power would be controlled with a mechanical switching device.
Transcribe →
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