GE IS200TVBAH2A IS200TVBAH2AAA Mark VI

The GE IS200TVBAH2A board generates PWM signals for hydraulic servo valve control. This modulator module also carries the revision code IS200TVBAH2AAA . It converts analog demand signals into precise pulse width outputs. The board serves critical fuel and steam valve positioning functions.

Technical Specifications of GE IS200TVBAH2A IS200TVBAH2AAA

Parameter	Specification
Manufacturer	General Electric (GE)
Series	Mark VI Speedtronic
Full Model	GE IS200TVBAH2A (IS200TVBAH2AAA)
Board Dimensions	26.04 cm x 2.54 cm x 18.73 cm
Weight	Approximately 0.35 kg
Supply Voltage	24 V DC (Nominal)
PWM Frequency Range	100 Hz to 2 kHz
Output Current	50 mA per channel (Max)
Power Dissipation	15 W (Typical)

Component Count and Board Construction

This GE IS200TVBAH2A board contains over 150 discrete components on its surface. You will find multiple power transistors for output switching. Furthermore, the board includes precision timing circuits for accurate pulse generation. The assembly also features optical isolation between logic and output stages.

Interfaces, Energy Storage, and Signal Processing

The IS200TVBAH2AAA revision provides terminal block connectors for field wiring. Moreover, the board uses capacitors for output filter networks. These capacitors store minimal energy but reduce switching noise effectively. Each output channel includes a dedicated driver transistor for reliability.

Functional Logic and Application Context

This Mark VI board receives digital demand values from the main controller. It then converts these values into variable duty cycle pulses. The GE IS200TVBAH2A drives servo valves directly without external amplifiers. Additionally, it monitors output current for short circuit conditions. Consequently, the board provides built-in protection for field wiring faults.

Output Channels and Valve Control

The modulator board supports multiple independent output channels simultaneously. Each channel operates with software-configurable frequency and polarity settings. Furthermore, the IS200TVBAH2AAA includes dither injection for improved valve response. This dither signal prevents stiction in hydraulic servo mechanisms. The board also features adjustable deadband compensation for precise positioning.

Installation and Environmental Limits

You must power down the VME rack before removing this modulator board. The operating temperature range spans 0°C to 60°C . Furthermore, the board withstands 5 g vibration without output instability. Always verify the IS200TVBAH2AAA configuration against your valve specifications.