IS200BICLH1BAA GE Mark VI Bridge Interface Board In Stock

Product Overview

The General Electric IS200BICLH1BAA serves as an IGBT Drive/Source Bridge Interface Board within the Mark VI Speedtronic Control System. Abbreviated as BICL, this board links the main control processor to secondary drive boards including BPIA, BPIB, and SCNV units. It monitors bridge thermal states and ambient panel temperatures while routing system fault strings. Control logic executes via an onboard Electronically Programmable Logic Device (EPLD), with two backplane connectors (P1 and P2) providing direct integration into VME card racks across gas, steam, and wind turbine drive assemblies.

Technical Specifications

• Manufacturer: General Electric (GE)
• Part Number: IS200BICLH1BAA
• Functional Acronym: BICL
• Product Series: Mark VI Speedtronic Control
• Board Type: IGBT Drive/Source Bridge Interface Board
• Backplane Interface: Dual VME Connectors (P1 and P2)
• Onboard Logic: EPLD (Electronically Programmable Logic Device)
• Memory Architecture: Onboard Serial 1024-Bit EEPROM ID Device
• Relay Outlets: 4 x Electromechanical Relays with Top Surface Circuit Diagrams
• Thermal Sensing: Dual Bridge Temperature & Ambient Panel Thermal Monitoring
• Fan Speed Control: Open/Isolated Collector Transistor PWM Output
• Hardware Adjustments: Zero Fuses, Test Points, or Potentiometers
• Backwards Compatibility: Compatible with First Two Major Revision Generations

Functional Architecture

Bridge Communications & Thermal Diagnostics

• Transmits control signals directly between VME main controllers and secondary BPIA, BPIB, or SCNV bridge boards.
• Processes ambient temperature feedback and IGBT heatsink thermal telemetry continuously.
• Interlocks panel and system fault string signals to trigger rapid protection trips when limit thresholds breach.

EPLD Logic & Auxiliary Fan Drive

• Executes fast bridge gating logic internally via the EPLD chip to reduce main CPU overhead.
• Drives an open-collector transistor PWM line to dynamically adjust cabinet cooling fan speeds.
• Varying the PWM duty cycle increases or decreases fan rotation speed directly based on bridge thermal load.

System Compatibility & Machinery Applications

The IS200BICLH1BAA board mounts inside 13-slot or 21-slot VME card racks within GE Mark VI control enclosures. Instrumentation specialists deploy this bridge interface across heavy industrial power setups:

• Heavy-duty industrial gas turbine static exciter drive cabinets.
• Combined-cycle steam turbine generator field control systems.
• Utility-scale wind turbine converter drive assemblies.
• High-power variable frequency drive (VFD) industrial motor controls.

Diagnostic Capabilities & Field Testing

• Onboard ID Chip Retrieval: The 1024-bit serial memory chip stores board identification data, allowing the main CPU to verify board placement automatically during VME initialization.
• Relay Diagram Verification: Printed contact schematics on top of each of the four relays allow field technicians to trace switching states directly during maintenance stops.
• Thermal String Fault Isolation: Transmits precise temperature fault data to system alarms, isolating thermal runaway on IGBT bridges before structural damage occurs.

Global PLC Spare HUB's Insight

In high-power VME control racks, bridge interface issues often trace back to thermal management rather than component failure. During a site audit at a wind power station, operators reported recurring bridge over-temperature alarms linked to an IS200BICLH1BAA card. Inspection revealed that while the EPLD issued correct PWM fan drive signals, an external series resistor on the collector line had burnt out due to a seized cooling fan motor. The driver transistor remained intact, but fan speed dropped to zero. Always verify that external cooling fan assemblies rotate freely and that series resistors are intact when troubleshooting thermal fault trips on BICL boards.

Purchasing Guide

• Verify Backplane Version: Confirm that your VME card cage slot accepts dual P1/P2 connector arrangements without obstruction.
• Check Revision Backward Compatibility: Ensure your existing system software supports the H1BAA functional revision level.
• Enforce ESD Handling Rules: Store and handle replacement boards using grounded wrist straps and anti-static bags, as specified in GE publication GEI-100264.

Package Contents & Logistics

• 1 x General Electric IS200BICLH1BAA Bridge Interface Board.
• Anti-static protective packaging enclosure.
• Standard 12-Month Replacement Warranty.
• Express Global Dispatch: Ships worldwide within 24 to 48 hours via FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

Q: How does the IS200BICLH1BAA control cabinet cooling fan speed?

A: The EPLD drives an open-collector transistor via a PWM line. Adjusting the duty cycle of this signal increases or decreases the cooling fan speed according to bridge thermal demands.

Q: Does the IS200BICLH1BAA board require manual pot adjustments or jumper settings?

A: No. The board features zero potentiometers, fuses, or adjustable hardware jumpers. All logic and calibration parameters are handled electronically via the EPLD and main CPU.

Q: What boards interface directly with the IS200BICLH1BAA inside the Mark VI system?

A: It connects the main VME controller to secondary bridge driver boards including the BPIA, BPIB, and SCNV power converter modules.

Q: Can this board be hot-swapped while the VME backplane is energized?

A: No. Power to the VME card rack must be completely de-energized prior to removing or inserting the module to prevent electrical damage to the P1/P2 backplane pins.

Q: How quickly can replacement boards be shipped for urgent power plant downtime?

A: Orders are processed and dispatched within 24 to 48 hours using global express carriers including FedEx, UPS, and DHL.

Tags