Description
Product Overview
The GE IS200EMIOH1ACA is an Exciter Main I/O Board. It belongs to the EX2100 series. GE designed it specifically for the Speedtronic Mark VI turbine control system. Consequently, this board supports gas, steam, and wind turbine applications. Its primary role is managing input and output signals. Additionally, it communicates with terminal boards like EPCT, ECTB, EACF, and EXTB. Therefore, it is a cornerstone for reliable power conversion and excitation control.
Why Choose This Board?
High Compatibility – Works seamlessly with Mark VI and EX2100 systems.
Strong Signal Handling – Processes PT, CT, contact inputs, and relay drives.
Efficient Design – Single slot, double-height VME saves rack space.
Built to Last – Surface-mount technology withstands harsh industrial sites.
Easy Diagnostics – Two front LEDs show power and status at a glance.
Technical Specifications
Brand: General Electric (GE)
Model: IS200EMIOH1ACA
Series: EX2100 Excitation Control / Mark VI Speedtronic
Board Type: Exciter Main I/O Board
Group: H1
Style: VME
Height: Double
Slot Design: Single
Relay Channels: 12
Technology: Surface-mount
Dimensions (H x W x D): 8.26 cm x 4.19 cm x 12.1 cm
Country of Manufacture: USA
Functional Revisions: 3 total (backward compatible with first two)
Part Number: IS200EMIOH1ACA
Measurement & Signal Ranges
Potential Transformer (PT) Signals: Standard industrial voltage levels
Current Transformer (CT) Signals: Standard industrial current levels
Contact Inputs: Binary status (open or close)
Output Relay Drivers: Logic-level control signals
Pilot Trip Relay Drives: Protection trigger outputs
Frequency Response: Optimized for 50/60 Hz power systems
Sensitivity: High precision for PT and CT signal conditioning
Linearity: Maintains signal integrity across the full operating range
Resolution: Adequate for industrial excitation control needs
Environmental & Tolerance Specifications
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Humidity Tolerance: 5% to 95% non-condensing
EMI Protection: Designed for high electrical noise environments
Noise Immunity: Complies with GE industrial control standards
Installation Guide
Use a standard VME rack with double-height slots.
Insert the board carefully into a single slot.
Secure it with the front faceplate clips.
Connect backplane connectors P1 and P2 firmly.
Ensure no bent pins on the rack backplane.
Keep the rack clean and free from metal debris.
Power off the control rack before starting installation.
Commissioning & Maintenance Convenience
Front LEDs show power and status for fast checks.
Clear reference designators help locate any component.
Test points allow easy voltage and signal measurement.
Standard VME mounting simplifies board replacement.
No special tools are needed for removal.
Regular inspection of LEDs and connectors is sufficient.
Compatibility Information
Works with the EX2100 excitation control series.
Compatible with terminal boards: EPCT, ECTB, EACF, EXTB.
Fits Mark VI Speedtronic rack systems.
Interfaces with the ESEL board for gate pulse routing.
Supports the EGPA in the power conversion cabinet.
Backward compatible with the first two functional revisions.
Certifications
Manufactured in GE certified facilities in the USA.
Meets GE industrial control quality standards.
Designed for hazardous and high-noise industrial sites.
Follows the VME bus specification for reliability.
Package List
One IS200EMIOH1ACA Exciter Main I/O Board
Front faceplate with LEDs and clips pre-attached
Note: Cables, terminal boards, and software are not included.
Warranty & Shipping
Warranty: 12 months from delivery date against manufacturing defects.
Shipping Partners: FedEx, UPS, DHL.
Fast dispatch within 2 business days after order confirmation.
Typical Applications
Excitation control for gas turbines
Steam turbine generator excitation
Wind turbine power conversion systems
Industrial power regulation and monitoring
Retrofit of older Mark V turbine systems
Diagnostic Capabilities
Power LED confirms the board receives DC power.
Status LED indicates normal operation or a fault.
Test points help verify internal signal paths.
System diagnostics via Mark VI HMI show I/O health.
Relay outputs can be force-activated for testing.
Frequently Asked Questions (FAQ)
Q1: What is the difference between IS200EMIOH1ACA and older revisions?
The first two revisions are backward compatible. Revision 3 may have minor circuit updates. Always check system firmware compatibility before use.
Q2: Can this board work with a Mark V system?
No. This board is designed for Mark VI and EX2100 series only.
Q3: How do I know if the board is faulty?
Check the Status LED first. Then measure the test points. Use system diagnostics to verify signal paths.
Q4: What signals can I connect directly to this board?
Do not connect high-voltage field wiring directly. Always use terminal boards like ECTB or EPCT for signal conditioning.
Q5: Does the board come with software or firmware?
No. Firmware loads separately through the Mark VI control system.
Q6: How long does shipping take?
Typically 3 to 7 business days. Delivery depends on the destination and chosen carrier (FedEx, UPS, or DHL).
Q7: What should I check before installing a used board?
Inspect for bent pins, burnt components, and damaged capacitors. Clean the edge connectors gently with isopropyl alcohol.
Q8: Can I use this board for wind turbine applications?
Yes. The Mark VI series fully supports wind turbine excitation control.
Q9: What is the typical lifespan of this board?
With proper cooling and clean power, it often exceeds 10 years in normal industrial environments.
Q10: Do you offer volume discounts for multiple units?
Yes. Please contact our sales team for bulk pricing.
Selection Guide
Confirm your system is Mark VI or EX2100 series.
Verify the rack has a free single slot, double-height VME position.
Check that your terminal boards are EPCT, ECTB, EACF, or EXTB.
Need gate pulse amplification? Ensure an EGPA board is present.
For new turbine projects, choose functional revision 3.
For replacement in existing systems, any revision works if the first two were used before.
Contact support with your system part number for an exact match.
Contact Information Inquiries
For technical support or sales, message us on WhatsApp:
+86 158 8020 0923
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