IS200WEMAH1A IS200WEMAH1APR2 GE | Analog I/O PCB Board

The GE IS200WEMAH1A board provides analog I/O functions for Mark VI systems. This WEMA analog I/O PCB also carries the revision code IS200WEMAH1APR2 . It interfaces with field sensors and actuators for turbine control. The board handles both current and voltage signals with high accuracy.

Technical Specifications of GE IS200WEMAH1A IS200WEMAH1APR2

Parameter	Specification
Manufacturer	General Electric (GE)
Series	Mark VI / WEMA
Full Model	GE IS200WEMAH1A (IS200WEMAH1APR2)
Board Dimensions	26.04 cm x 24.13 cm x 2.54 cm
Weight	Approximately 0.50 kg
Analog Inputs	8 (Differential)
Analog Outputs	4
Input Current Range	4 to 20 mA
Input Voltage Range	0 to 10 V DC
Output Range	4-20 mA or 0-10 V
Resolution	16-bit (Typical)
Power Dissipation	8 W (Maximum)

Component Count and Board Construction

The GE IS200WEMAH1A board contains over 230 discrete components. You will find multiple operational amplifiers for signal conditioning. Furthermore, the board includes precision DACs for accurate output generation. The assembly also features opto-isolators for channel isolation. LED indicators show power and communication status.

Interfaces, Energy Storage, and Signal Processing

The IS200WEMAH1APR2 revision provides screw terminal blocks for all field wiring. Moreover, the board uses capacitors for analog filter networks. These capacitors store minimal energy but provide critical noise rejection. Each input includes a dedicated ADC for simultaneous sampling. Each output channel features short-circuit protection.

Functional Logic and Application Context

This Mark VI board scans all eight input channels continuously. It then transmits digital values to the main controller via backplane. The GE IS200WEMAH1A also receives command values for its four outputs. Additionally, it converts these commands into precise analog signals. Consequently, you can use this board for both sensing and control applications.

Channel Configuration and Diagnostic Features

You can configure each input channel independently for current or voltage. The board supports open-wire detection on 4-20 mA loops. Furthermore, the IS200WEMAH1APR2 includes software-configurable scaling for each channel. This scaling adapts the board to various sensor types easily. The board also provides loop power for two-wire transmitters.

Installation and Environmental Limits

You must power down the rack before inserting this PCB board. The operating temperature range spans -30°C to +65°C . Furthermore, the board provides 1500 V isolation between field and logic sides. Always verify the IS200WEMAH1APR2 jumper settings before connecting field wiring.