GE IS200STAOH2AAA | Simplex Analog Output Terminal Board | 0-20 mA

Product Overview

The GE IS200STAOH2AAA is a Simplex Analog Output Terminal Board designed for integration with the GE Mark VIe control system. It facilitates high-precision analog control of devices such as actuators and positioners, delivering 0-20 mA current signals across 8 output channels. This terminal board is ideal for systems requiring a single control point without the need for redundancy, offering a cost-effective solution for distributed I/O configurations. Unlike Triple Modular Redundant (TMR) boards, the IS200STAOH2AAA is intended for use in simpler applications or where redundancy is not necessary.

Key Technical Specifications

1. Output Channels & Performance
   The IS200STAOH2AAA features 8 simplex analog output channels, suitable for controlling field devices:

• Signal Range: 0-20 mA output, commonly configured for 4–20 mA control.

• Maximum Load Resistance: Supports a maximum load of 900 Ω, making it compatible with a wide range of actuators and valves.

• Resolution: Equipped with a 16-bit Digital-to-Analog Converter (DAC), allowing for precise, fine-grained control.

• Accuracy: Calibrated to ±0.5% of the full-scale range, ensuring consistent and reliable performance over time.

2. Electrical & Wiring
   The board is designed for efficient wiring and integration:

• Field Wiring: Equipped with two 24-point barrier-type or box-type terminal blocks for simple and secure connections.

• Wire Size Compatibility: Accepts AWG #18 to #14 (0.8 to 2.0 mm²) wires, ensuring flexibility in wiring options.

• Interface: The IS200STAOH2AAA connects to the IS220PAOC I/O pack via a 37-pin D-type connector, allowing easy and reliable integration with the control system.

3. Protection & Diagnostics
   The board includes advanced protection and diagnostic features:

• Surge Protection: Each output channel includes Metal Oxide Varistors (MOVs) and noise filtering to guard against electrical transients and high-voltage spikes.

• Suicide Relay: A "suicide" relay is included for each channel, which can disconnect the output if the I/O pack detects a hardware malfunction or failure, ensuring system safety.

• Loop Feedback: The board supports real-time loop feedback to verify the actual current flowing in the loop, providing the I/O pack with continuous verification (read-back) of output accuracy.

System Configuration Comparison

Environmental Specifications

The IS200STAOH2AAA is built to operate in a variety of harsh industrial conditions:

• Operating Temperature: -30°C to +65°C (—22°F to +149°F), ensuring stable operation in a wide range of environmental temperatures.

• Storage Temperature: -40°C to +85°C, suitable for extreme storage conditions.

• Humidity: The board operates in 5% to 95% non-condensing humidity, ensuring functionality in different environmental conditions.

• Conformal Coating: Revision H2AAA features a conformal coating, providing extra protection against moisture, dust, and chemical contaminants.

• Pollution Degree: Rated for Level 2 (standard industrial indoor environments), making it ideal for typical industrial automation environments.

Applications

The IS200STAOH2AAA is ideal for use in applications that require high-precision analog output signals to drive field devices, including:

• Industrial Automation: Controls actuators, valves, and positioners in various industrial settings.

• Power Plant Systems: Used in turbine and power generation systems where precise control over field devices is essential.

• Distributed I/O Systems: Suitable for cost-effective applications requiring simplex configurations without redundancy.

FAQ

Q: What kind of field devices can be controlled with the IS200STAOH2AAA?
A: The IS200STAOH2AAA is designed to control actuators, positioners, and similar devices that require 0-20 mA current loop signals, commonly used in turbine and power plant systems.

Q: Can I use this terminal board in a redundant system?
A: The IS200STAOH2AAA is intended for use in simplex configurations. For Triple Modular Redundancy (TMR) applications, a different board like the TBTCH would be necessary.

Q: How does the IS200STAOH2AAA ensure the output is accurate?
A: The IS200STAOH2AAA features real-time loop feedback and surge protection for each channel, allowing the system to continuously monitor and verify output signals for accuracy and reliability.

Q: What is the temperature range of the IS200STAOH2AAA?
A: The board can operate in temperatures ranging from -30°C to +65°C (—22°F to +149°F), making it suitable for use in a wide range of industrial environments.