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GE IS230TDBTH6A
Product Name: Mark VIe TDBT Discrete I/O Terminal Board
Product Description: A high-density discrete signal termination and conditioning board that links field dry-contact devices (limit switches, pushbuttons, pressure switches) to PDIO I/O packs in Mark VIe turbine and balance-of-plant control.
Detailed content
Technical Specifications:
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Inputs: 24 isolated discrete inputs, wetting 24/48/125 V DC
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Outputs: 12 Form-C relay contacts
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Filtering: 4 ms hardware debounce, surge suppression
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Response: ≤ 25 ms
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Mounting: DIN rail or panel bolt
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Temperature: -30 °C to +65 °CFunctional Features: TMR support with 3 PDIO packs, high EMI immunity, Ethernet I/O via PDIO, silver-cadmium-oxide contacts, MOV suppression.Structural Characteristics: 178 × 330 mm PCB, screw terminals, DIN clip, panel drill pattern, relay banks with LED.Working Principle: Field contact closes → wetting voltage sensed → optically isolated input latched → PDIO scans → controller logic; controller command → relay energizes → field device.Installation Requirements: Separate 125 V DC input power from 28 V DC logic, route control and load wires in separated trays.Usage Notes: Verify wetting voltage selection before wiring; do not land 125 V DC on 24 V DC input bank.
