IS200VAICH1DAA | GE OEM Turbine VAIC Analog Module

Description

Product Introduction (Anti-Template)

The ‘DAA’ suffix on this versatile analog input board combines the enhanced isolation of the ‘D’ revision with premium component selection—delivering the best performance in the ‘D’ platform. The IS200VAICH1DAA is a VAIC series board with enhanced isolated inputs, improved signal conditioning, and the ‘AA’ premium component selection. This board handles voltage, current, thermocouple, and RTD inputs with the best components GE offers in this revision.

What does ‘DAA’ mean in practice? The ‘AA’ portion typically indicates premium component selection—higher-grade isolation components, tighter-tolerance precision resistors, and enhanced connector contacts. The board retains all functional characteristics of the standard VAICH1D (enhanced isolation, improved signal conditioning) but with components that offer better long-term stability and tighter specifications. If you’re replacing an existing ‘DAA’ board, match the suffix. If you’re substituting a standard ‘D’ for a ‘DAA’, verify the component differences with GE documentation or your OEM.

Key Technical Specifications

Compatible Replacement Models

✅ Drop-in Replacement: IS200VAICH1D — The standard ‘D’ revision. Identical pinout, mounting, and software interface. The ‘DAA’ uses premium component selections. Most applications won’t see a difference.

✅ Drop-in Replacement: IS200VAICH1C — The ‘C’ revision. Direct hardware match. The ‘D’ revision (including ‘DAA’) has enhanced isolation and improved conditioning.

⚠️ Software Compatible: IS200TBCI1A — General-purpose analog I/O. No isolation. Requires external isolation and software reconfiguration.

⚠️ Software Compatible: IS200TBTCH1A — Thermocouple-specific board. No isolation. Requires software reconfiguration.

⚠️ Software Compatible: IS200TRTDH1D — Isolated RTD board. RTDs only. Requires software reconfiguration.

❌ Hardware Incompatible: IS200TBQGH1A — Excitation termination board. Different pinout and application.

Frequently Asked Questions (FAQ)

Q: What does the ‘DAA’ suffix mean on this VAIC board?

A: The ‘DAA’ suffix indicates a premium component variant within the ‘D’ revision family. It’s not a standard upgrade path—typically, ‘DAA’ means GE used higher-grade components (isolation devices, precision resistors, or connectors) for better performance and long-term stability.

Q: Can I replace a ‘DAA’ board with a standard ‘D’ revision?

A: Usually yes—the boards are pin-for-pin compatible. However, some ‘DAA’ variants have tighter specifications. If those differences matter to your critical measurements, match the suffix.

Q: How do I know if I need the ‘DAA’ variant?

A: Check your original bill of materials or the board’s placement in your system. If the board you’re replacing has a ‘DAA’ suffix, replace it with the same suffix.

Q: Is the VAICH1DAA hot-swappable?

A: We advise against hot-swapping analog input boards. Power down the cabinet segment before swapping.

Q: What bench testing should I do before installing a VAICH1DAA?

A: Standard isolated analog input protocol with component verification. First, visual inspection. Second, verify jumper settings. Third, apply known signals and verify accuracy—may differ from standard ‘D’.

Q: How do I verify I’m getting a genuine VAICH1DAA?

A: Check component markings against GE’s documented parts list. Weigh the board; should be about 367 grams. Look for the GE holographic security label.

Q: Where do I find the official wiring diagram for the VAICH1DAA?

A: GE document GEK-130560 covers the VAIC series. The ‘DAA’ suffix typically does not change the wiring diagram. Always cross-reference against your cabinet’s as-built drawings. Verify every channel before terminating.

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