Dart Controls Inc. 253G-200C board
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The Dart Controls 253G‑200C is a dual‑voltage (120/240 VAC) variable‑speed DC controller that uses an SCR bridge to deliver 0–90 VDC output for up to 2 HP loads. Common failure modes in this class include burnt or tripped SCRs, degraded gate driver circuits, and insulation breakdown between the input transformer and the SCR bridge. Check the power supply first: verify correct line voltage, no phase loss, and that the transformer secondary is within spec; then inspect the SCR bridge for visible damage or overheating. Finally review any fault codes displayed on the controller’s indicator LEDs and perform a continuity test of the gate driver traces to confirm proper operation.[oss-gpt-20b] |
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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
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Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
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