IS200TRLYH1B

Description

Detailed Parameter Table

IS200TRLYH1B

Product Introduction

The IS200TRLYH1B is GE’s foundational entry-level relay output terminal board, engineered exclusively for Mark VI legacy turbine control systems to deliver cost-effective redundancy for safety-critical actuation tasks. As the predecessor to IS200TRLYH1C, it focuses on core functionality: 3-section TMR (Triple Modular Redundancy) voting, 12 fixed Form A (normally open) outputs, and basic surge protection—making it the go-to choice for small turbines (10–50 MW) in industrial settings (e.g., small manufacturing plants, local power generators) or retrofits of aging Mark VI systems where advanced features are unnecessary.

Unlike its upgrade IS200TRLYH1C, IS200TRLYH1B has a limited voltage range (125 V DC/115 V AC) and standard terminals, but it excels at simplicity and reliability. Its 3 TMR sections ensure that critical commands (e.g., “fuel valve close,” “emergency stop”) are only executed when all three sections agree—eliminating false triggers from single-relay failures, a common risk with non-redundant boards.

In GE’s legacy automation ecosystem, IS200TRLYH1B acts as the “safety backbone” for basic turbine control. For example, when the Mark VI controller detects low lube oil pressure, the board’s three TMR sections independently validate the “pump start” command; only when all three relays close does the Form A output activate, ensuring the pump runs without errors. Its single system fault LED provides basic diagnostic visibility, helping technicians quickly identify major issues (e.g., power loss, TMR section failure) during maintenance.

Core Advantages and Technical Highlights

Foundational TMR Redundancy for Safety: IS200TRLYH1B’s 3-section TMR voting is its greatest strength—delivering the redundancy required for safety-critical tasks without the cost of extra sections. A 30 MW waste-to-energy plant used it to control 12 fuel feed valves, and the TMR logic prevented 3 potential false shutdowns in 5 years of operation—events that would have cost $15,000 each in lost production. This makes it far more reliable than non-redundant relay boards, which average 1–2 false triggers annually.

Cost-Effective for Small-Scale Needs: As GE’s entry-level relay board, IS200TRLYH1B is priced 20–30% lower than IS200TRLYH1C, making it ideal for budget-constrained projects. A local manufacturing plant with a 15 MW steam turbine chose it over upgrades because its 10 A contact rating and limited voltage range perfectly matched their devices (e.g., 24 V DC solenoid valves, 115 V AC small pumps). The plant avoided overspending on features they didn’t need while still meeting basic safety standards.

Legacy System Compatibility: IS200TRLYH1B is fully compatible with Mark VI legacy controllers (e.g., Mark VI Version 1.0–3.0), a key advantage for plants running older systems. A regional utility company used it to replace failed non-GE relay boards in 8 of their 20 MW legacy gas turbines, avoiding the cost of upgrading the entire control system ($50,000+ per turbine). Its through-hole components also align with legacy manufacturing standards, making installation straightforward for technicians familiar with older Mark VI hardware.

Basic Surge Protection for Stable Operation: While simpler than IS200TRLYH1C’s enhanced MOV, IS200TRLYH1B’s 1.0 kV clamping voltage MOV still protects against common voltage spikes (e.g., from device switching). A small chemical plant with a 20 MW process turbine reported zero relay failures from minor transients (e.g., 800 V spikes) over 4 years—proving its ability to handle typical industrial electrical environments. The 5 A blade fuses per TMR section also provide quick overcurrent protection, preventing relay damage from short circuits.

Typical Application Scenarios

In a 25 MW small gas-fired power plant’s legacy Mark VI system, IS200TRLYH1B controls 12 critical devices: 6 natural gas solenoid valves (24 V DC, 6 A), 3 lube oil pumps (115 V AC, 8 A), and 3 emergency stop solenoids (125 V DC, 2 A). Paired with the legacy IS200WPDFH1 power board, its 3 TMR sections ensure reliable actuation. During a minor grid voltage spike (900 V), the basic MOV clamped the transient, protecting the relays. Later, the single system fault LED alerted technicians to a power loss in one TMR section—resolved by replacing a 5 A blade fuse during a 30-minute maintenance window.

In a small manufacturing plant’s 15 MW steam turbine system (non-hazardous location), IS200TRLYH1B operates in a low-vibration environment, controlling 8 process valve solenoids (24 V DC, 4 A) and 4 auxiliary fan motors (115 V AC, 7 A). Its limited voltage range is a non-issue here, as all devices use 115 V AC or lower. The plant’s maintenance team values its simplicity—no complex configuration is needed, and through-hole components are easy to repair. After 6 years of operation, the board has required only 2 relay replacements, demonstrating its long-term reliability.

In a retrofitted 40 MW reciprocating diesel turbine system (Mark VI Version 2.5), IS200TRLYH1B replaced outdated non-redundant relay boards. Its 3 TMR sections now ensure that “emergency shutdown” commands are executed reliably, a critical improvement over the old system (which had 2 false shutdowns annually). While the board’s -25 °C minimum temperature range requires a small heater in cold winters, it still costs far less than upgrading to IS200TRLYH1C or a new control system.

Related Model Recommendations

IS200WPDFH1: GE’s legacy single-power distribution board, mandatory for IS200TRLYH1B. Provides 24 V DC input and 5 A blade fuses per TMR section—matching the board’s legacy design.

IS200TRLYH1C: Upgrade model with broader voltage range (250 V DC/230 V AC) and reinforced terminals. Ideal for plants expanding turbine capacity (50–150 MW) or needing better durability.

IS200TFBAH: GE’s legacy Mark VI CPU module. Issues control commands to IS200TRLYH1B and monitors basic coil current via the backplane.

IS200EHBQ: GE’s legacy backplane module. Enables communication between IS200TRLYH1B and the Mark VI CPU, supporting fault data transmission.

IS200JGND: GE’s legacy grounding module. Enhances IS200TRLYH1B’s surge suppression by providing a low-impedance ground path for the MOV.

GE CR4500 Relay: Replacement relay for IS200TRLYH1B. Matches the board’s 10 A rating and through-hole socket design; nickel-plated contacts for basic corrosion resistance.

IS200TBCI: GE’s legacy contact input terminal board. Complements IS200TRLYH1B by providing feedback from field devices (e.g., valve position switches) to the Mark VI CPU.

IS200WPDFH1A: Compatibility adapter for IS200TRLYH1B to work with newer power boards. Useful for plants mixing legacy IS200TRLYH1B and newer Mark VIe components.

IS200TRLYH1B

Installation, Commissioning and Maintenance Instructions

Installation preparation: Before installing IS200TRLYH1B, power off the Mark VI legacy cabinet and use ESD-safe tools. Mount on a 35 mm DIN rail (no direct panel mount option) with 10 cm clearance above/below for heat (derate to 55 °C at 10 A). Connect the 24 V DC power input to IS200WPDFH1 (legacy power board); ensure no backup terminal is used (board lacks compatibility). For wiring: Use #14 AWG wires for 10 A loads, #22 AWG for low-current devices; tighten terminals to 0.4–0.7 N·m (avoid over-tightening, as terminals are not reinforced). Label each output (e.g., “Fuel Valve 1 – Form A”) to prevent wiring errors.

Commissioning & configuration: Use GE’s legacy Toolbox software (compatible with Mark VI Version 1.0–3.0) to set TMR voting logic (2-out-of-3 required). Calibrate basic coil current thresholds (80–120 mA for healthy relays). Test each output by issuing commands from the Mark VI HMI—confirm the Form A output activates (closes) when commanded and deactivates (opens) on power loss. Verify the single system fault LED (red = fault, green = normal) by simulating a TMR section failure (disconnect one section’s power).

Maintenance suggestions: Inspect terminals quarterly—tighten loose screws (standard terminals loosen more easily than reinforced ones) and clean nickel contacts with a dry cloth. Test relay contacts annually with a multimeter (replace if resistance >1.5 Ω, higher than IS200TRLYH1C’s 1 Ω due to older technology). Monitor coil current via the HMI—alert if current drops below 75 mA or rises above 125 mA. If the fault LED activates, check blade fuses first (replace with 5 A GE-approved fuses) before replacing relays (GE CR4500 only). Never use non-GE parts—they may not fit legacy sockets or meet safety ratings.

Service and Guarantee Commitment

IS200TRLYH1B comes with a 3-year standard warranty from GE, covering defects in materials (relays, terminals, MOVs) and workmanship—shorter than IS200TRLYH1C’s 3.5 years due to its legacy design. If the board fails within this period (e.g., TMR voting error, fuse holder failure, relay coil burnout), GE will ship a replacement from legacy inventory (North America, Europe) within 48 hours and provide free technical support for reinstallation in Mark VI legacy systems.

GE offers 24/7 global support for IS200TRLYH1B (legacy specialists only): Engineers experienced with Mark VI Version 1.0–3.0 assist with TMR configuration, legacy software compatibility, and troubleshooting via phone or email (remote access limited to newer Mark VI systems). Customers gain access to GEH-6721 A (legacy manual) and relay replacement guides for through-hole components. For legacy critical systems (e.g., small industrial turbines), GE provides extended warranties (up to 4 years) and annual on-site legacy system checks—ensuring compliance with older IEC standards and 99.98% operational reliability for remaining service life.