IS200TRTDH1D | General Electric Mark VIe RTD Input Terminal Board

GE IS200TRTDH1D Mark VI RTD Input Terminal Board — 16-Channel, 3-Wire, Simplex

The IS200TRTDH1D is an RTD Input Terminal Board (TRTD) for GE's Mark VI turbine control platform. It accepts 16 three-wire RTD inputs via two barrier-type terminal blocks, with built-in noise suppression and surge protection circuitry on each channel. The board connects to PRTD I/O packs via two DC-type 37-pin connectors, converting analog temperature signals into digital values for the controller. This is a simplex-only board — TMR applications require TRTDH1B with VRTD boards.

Key Specifications

• Manufacturer: General Electric / GE Energy
• Series: Mark VI Speedtronic
• Type: RTD Input Terminal Board
• Channels: 16 three-wire RTD inputs
• Terminal Blocks: 2 barrier-type strips, 24 screw terminals each (48 total)
• Wire Gauge: Up to #12 AWG
• Connectors: 2 female 37-pin DC-type connectors (JA1 and JB1) for PRTD I/O pack connection
• Shield Terminals: Dedicated shield terminal strip connected to chassis ground per block
• Protection: Noise suppression circuitry (high-frequency noise and surge protection) on all inputs
• Software Features: System limit checking; hardware limit checking
• Hardware Configuration: No jumpers or configurable hardware
• Mounting: Two oval cutouts for screw mounting; notches along one edge and at two corners
• Compatibility: PRTD I/O pack; simplex applications only
• Status: Active / In production

Architecture & Redundancy

• Simplex Only: IS200TRTDH1D supports simplex PRTD I/O pack connections only
• TMR Variant: IS200TRTDH1B fans inputs to three VRTD boards in R, S, and T racks for TMR Mark VI systems
• Signal Path: RTD inputs → TRTD terminal board → PRTD I/O pack → digital temperature values → Mark VI controller
• Environmental Compliance: Meets same environmental, resolution, suppression, and function requirements as TRTDH1C

Installation Guide

1. Mount the IS200TRTDH1D using the two oval cutouts for screw mounting.
2. Connect 16 three-wire RTD sensor wires to the two barrier-type terminal blocks (24 terminals each).
3. Use double-shielded wire for all RTD connections.
4. Terminate all shields at the dedicated shield terminal strip on each block — end shields at the end device.
5. Connect JA1 and JB1 37-pin cables to the PRTD I/O pack.
6. Verify no jumpers are required — the board has no configurable hardware.
7. Power on and verify temperature readings via Mark VI CIMPLICITY HMI.

FAQ

Q: Is IS200TRTDH1D for Mark VI or Mark VIe?
A: Mark VI. The IS200 prefix indicates Mark VI series. Some sources incorrectly list it as Mark VIe — IS400 series is the Mark VIe RoHS equivalent.

Q: What is the difference between TRTDH1D and TRTDH1B?
A: TRTDH1D is a simplex board with two DC connectors for PRTD. TRTDH1B is a TMR board that fans inputs to three VRTD boards in R, S, and T racks.

Q: What does the H1D suffix mean?
A: "H1" indicates the hardware revision / functional variant. "D" is the D-rated functional revision identifying this as the simplex version.

Q: Does it support 2-wire or 4-wire RTDs?
A: Three-wire RTDs only. The terminal blocks are wired for 3-wire configuration. For 2-wire or 4-wire RTDs, use appropriate terminal boards or interposing devices.

Q: What RTD types are supported?
A: Common RTD types (Pt100, Pt200, Cu10, etc.) are supported via PRTD I/O pack configuration. Verify specific type compatibility with your PRTD firmware version.

Q: Can I use this board without a PRTD I/O pack?
A: No. The TRTDH1D requires a PRTD I/O pack to convert analog RTD signals to digital temperature values for the controller.

Selection Tips

• Mark VI, 16 RTD inputs, simplex: IS200TRTDH1D + PRTD I/O pack
• Mark VI, 16 RTD inputs, TMR: IS200TRTDH1B + 3× VRTD boards
• Mark VIe, RTD inputs: IS400TRTDH1D (RoHS equivalent)
• Always verify: Simplex vs. TMR requirement, RTD type (3-wire), and PRTD I/O pack availability
• Use double-shielded cable and proper shield termination for noise immunity