IS200BPDIH1A

The IS200BPIAG1A is a Bridge Personality Interface Board designed and developed by General Electric. It is part of the Drive Control series and serves as an IGBT Drive Bridge Personality Interface Board, enabling communication between the control and power electronics of an IGBT three-phase drive. The board facilitates connections between the IGBT three-phase AC drive's control and power electronics and includes six isolated IGBT gate driver circuits, three isolated shunt voltage-controlled oscillator (VCO) feedback circuits, and isolated VCO feedback circuits to monitor the DC link, VAB, and VBC output voltages. The board also features hardware phase overcurrent and IGBT desaturation fault protection. It is installed in a VME rack via its P1 connector, with six plug connectors connecting to phase A, B, and C IGBTs, and five stab-on connectors for various sensing signals.

Power Supplies

• There are nine isolated power supplies derived from the secondary windings of three transformers, one for each phase. The P1 connector provides a 17.7 V AC square wave input to the transformer primaries.
• Two of each transformer's three secondaries are half-wave rectified and filtered to supply isolated +15 V (VCC) and 7.5 V (VEE) to the IGBT gate driver circuits.
• The third secondary is full-wave rectified and filtered to supply the isolated 12 V needed for the shunt current and phase voltage feedback VCOs, as well as the fault detection circuitry. A 5 V linear regulator on the +12 V supply generates a light 5 V logic supply, with the control logic referenced by +5 V.

Features

• The board features a faceplate that includes the board ID, the manufacturer logo, and a statement to install in slot 6 only. Installing the board in an incorrect slot may cause damage.
• Includes six additional male vertical pin connectors for connecting to phase A, B, and C IGBTs.
• No adjustable hardware, fuses, or test points are included. The board contains three transformers, nine resistor network arrays, six transistors, various capacitors and resistors, and a 1024-bit memory chip with pre-programmed revision information and board identification.

Characteristics

• An IGBT Drive Bridge Personality Interface Board provides an interface between the IGBT drive electronics and the control system in a power conversion system. It delivers necessary input/output (I/O) signals and control functions required for operating the IGBTs.
• Main functions include receiving control signals from the control system and translating them into drive signals to control the IGBTs' operation, along with providing protection and monitoring functions to ensure safe and reliable operation.
• Typically includes input connectors for control signals, output connectors for IGBT drive signals, and various components like op-amps, comparators, and protection circuits. It may also feature digital and analog interfaces for communication with the control system.

Board Installation

1. Place the board in the appropriate rack slot.
2. Begin seating the board by firmly pressing the top and bottom of the board with your thumbs at the same time.
3. Finish seating the board in the slot by tightening the screws at the board's top and bottom. To ensure the board is seated squarely, tighten the screws evenly.
4. Reconnect all cables to the BPIA board as directed, making sure they are properly seated on both ends.
5. Replace the protective cover on the right side of the board rack by following these steps:
   1. Slide the protective cover over the four side screws and towards the back of the rack (in the four slots).
   2. Tighten the screws at the top and bottom of the front of the cover (the screws are held in place by the front of the cover).
   3. Tighten the four screws on the cover's side.
6. Snap the drive cabinet door shut.

Mean Time Between Failure

• Average Time Between Failures (MTBF) measures system reliability as the average failure-free operating time over a specific period under specified conditions. It helps determine how long equipment can be expected to operate without failure.
• MTBF data is used to schedule maintenance or replacement prior to failure, or to implement redundant applications to prevent system issues. It also helps identify weak links in the system, allowing for contingency options to improve reliability.