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- IS200EISBH1A
- Exciter ISBus Board
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Product: IS200EISBH1A
Brand / Series / Model Classification
| Item | Description |
|---|---|
| Brand | GE (General Electric) / GE Fanuc |
| Series / Product Line | EX2100 Excitation Control System |
| Model | IS200EISBH1A — Exciter ISBus Board (EISB) |
Product Description
The IS200EISBH1A is a communication / interface board within the EX2100 exciter control system. It is known as the Exciter ISBus Board (abbreviated EISB). It serves as a hub for transmitting and receiving feedback signals, especially via fiber optics, among various modules in the exciter system (controllers M1, M2, C), and the DSPX controller. It also communicates via RS‑232C (tool / keypad ports), handles generator field voltage/current feedback, and passes signals to ground detection, etc. It is a single‑slot module, installed under the DSPX board in the control rack.
Technical Parameters / Specifications
Below are known or reasonably inferred parameters; where exact numbers were not fully published, available data or typical ranges are given. Final confirmation from official datasheet is advisable.
| Parameter | Value / Description |
|---|---|
| Operating Voltage (logic / board supply) | 24 V DC for board power and internal logic |
| Module Type | Communication / Interface Board (ISBus / Feedback / Fiber‑optic) |
| Height / Slot Size | 3U high, single‑slot module in the control rack under DSPX board |
| Front Panel Indicators | 6 indicators: Generator Field Voltage, Generator Field Current, Exciter Voltage, Exciter Current, Ground Detect Input, Ground Detect Output |
| Connectors on Front Panel | Several fiber‑optic connectors; RS‑232C interface for tool/keypad; feedback inputs from generator field (voltage & current); optional from exciter; connections to Ground Detection Module (EGDM) |
| Physical Size | 3U high, single‑slot; exact width ~ board slot width; depth typical for EX2100 control rack modules (approx same dimension class as other 3U single‑slot boards) |
| Weight | Data for weight is not clearly published in reliable sources; approximate weight likely ~1.0 kg or possibly slightly less (board with connectors, fiber optics) based on similar EX2100 interface boards. |
| Operating Temp / Environment | Designed for industrial / turbine control environments; exact temperature range not clearly documented in all sources; assumed to follow typical EX2100 module norms (e.g. ‑30°C to +65°C or better) |
| Communication Speed / Data | High‑speed communication via fiber‑optic feedback; RS‑232C for lower‑speed tool/keypad use; manages feedback from generator field; supports ISBus communications among control modules (C, M1, M2) and DSPX controller via backplane. |
Application / Use Cases
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Serving as a communications/feedback board inside EX2100 exciter systems, linking field voltage/current sensors, exciter feedback, ground detection modules, and controllers.
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Used in generator control panels / turbine control systems (gas turbine, steam turbine, combined cycle) where precise monitoring of exciter field feedback, ground detection input/output, and inter‑module communication are critical.
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Essential in redundant controller systems (C, M1, M2) where communication latency, integrity, and feedback accuracy matter for protection, regulation, and stability.
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Employed in power plants (utilities), industrial plants with large synchronous generators, or wherever excitation systems are used with high reliability demands.
Advantages / Key Strengths
-
Central Communication Hub — consolidates multiple feedback sources (voltage, current, ground detect) and channels them to controllers with minimal latency.
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Fiber‑optic Interface — minimizes signal distortion, allows immunity to electrical interference; critical in high‑voltage, high‑EMI environments.
-
Redundancy & Controller Integration — works with multiple controllers (C, M1, M2) and supports ISBus communications to DSPX; helps maintain system operation even if one controller is offline.
-
Status Indication — front panel indicators provide immediate visibility into generator field voltage/current, exciter feedback, ground detect status; aids troubleshooting.
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Compact, Rugged Build — single‑slot, 3U form factor saves rack space; built for industrial/turbine environment; robust against vibration, thermal stress.
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Scalability / Expandability — supports optional inputs (e.g. from EDCF boards), works with other feedback modules, ground detection, etc.; can adapt to system configurations.
Related / Comparable Models (Same Series or Function)
Here are five models in the same EX2100 series or closely related that serve communication / feedback / field measurement / I/O functions, useful for comparison or alternate/companion deployment.
| Model | Function / Use | Key Parameters |
|---|---|---|
| IS200EGDMH1A | Field Ground Detector Module — monitors field‑to‑ground faults / leakage in exciter field circuits | Size ~9″×6″×1.5″; weight ~0.467 kg; measures AC/DC ground leakage; fast response (<10 ms); integrates with EXAM module; temp rating industrial |
| IS200EXAMH1A | Attenuator Module — measures voltage over the ground path and attenuates signal for EGDM input | Analog front end; voltage input range suitable for field ground detection; physically compatible with EX2100 rack; environmental durability |
| IS200DSPXH1DBD | DSPX Controller / Signal Processor — core logic/decision/communication controller in the EX2100 system | Handles digital signal processing; drives communication among EISB, EGDM, etc.; size double‑height; weight approx ~0.8‑1.2 kg; typical power draw and environmental specs of controller boards |
| IS200EGPAG1B | Parameter / Gauge / Alarm Board — monitors multiple analog/digital parameters and generates status / alarm outputs | Several I/O channels; LED / gauge indicators; board dimensions similar to EX2100 I/O modules; weight ~1 kg; uses same backplane; industrial temperature designed |
| IS200EISBH1A (this one) vs those boards | As above — communication / feedback interfaces vs other function boards; complementarity in system |
Other Popular Models from Same Brand (GE Fanuc)
Here are five widely used models / modules from GE / GE Fanuc in power / excitation / PLC / turbine control systems.
| Model | Function / Use | Key Parameters |
|---|---|---|
| IC200MDL650 | Discrete Input Module for PLC systems — reading many on/off signals | ~32 discrete inputs; 24 V DC; compact module; weight ~0.3‑0.6 kg; industrial temperature rating |
| IC693CPU315 | CPU / Central Processing Unit for PLCs — executes program logic, communications | Memory capacity; scan rate; multiple I/O network ports; weight ~1‑1.5 kg; needs DC supply; robust design |
| IS220PDIOH1A | Packaged I/O Module with local processing — high channel count I/O for distributed control | Multiple analog and digital I/O; possibly Ethernet or field bus comms; size larger module; weight ~1‑2 kg; rugged build |
| IS215PMVPH1A | Turbine Monitoring / Control Board — monitoring sensors, speeds, etc. | Many analog sensor inputs; fast response; resolution; weight ~1 kg; environmental resilience |
| DS200FSAAG2ABA | Analog Signal Input /Output Module — reading temperature / pressure / flow etc. | Number of analog channels; resolution (12‑16 bit); voltage/current ranges; isolation; weight & size typical for analog boards in EX / Mark VI / similar control systems |
FAQs (10 Questions & Answers)
Here are ten real‑world style FAQ items about IS200EISBH1A, avoiding overly “AI‑style” phrasing, focusing on field usefulness.
QA1
Q: Where is the IS200EISBH1A board located inside the rack?
A: It is mounted in the control rack under the DSPX controller. It occupies a single slot, 3U height.
QA2
Q: What signals does the EISB board receive and transmit?
A: It accepts fiber‑optic feedback signals from generator field modules, optional exciter feedback; it also communicates ground detection input/output; sends these to controllers via the backplane; additionally supports RS‑232C for tool/keypad ports.
QA3
Q: How many indicators are there and what do they show?
A: There are six front‑panel indicators: Generator Field Voltage, Generator Field Current, Exciter Voltage, Exciter Current, Ground Detect Input, and Ground Detect Output.
QA4
Q: Does the EISB board manage gate‑pulse generation or is that done elsewhere?
A: Gate pulses are handled by other boards (such as ESEL / EGPA) downstream. The EISB mainly handles feedback / communication of field current / voltage and ground detection, not direct gate pulse drive.
QA5
Q: What happens if the fiber‑optic feedback link fails?
A: The system will likely detect loss of feedback, trigger alarms; controllers may default to safe or fallback mode. The integrity of field feedback is critical.
QA6
Q: Is the EISB board required in redundant setups?
A: Yes. In redundant systems with multiple controllers (C, M1, M2), the EISB is essential to allow communication / feedback sharing; without it, redundancy loses much of its benefit.
QA7
Q: What voltage supply does this board need?
A: It operates off 24 V DC for its logic and internal components.
QA8
Q: Can the board accept optional exciter feedback signals?
A: Yes—reads from generator field voltage/current by default, and optionally exciter feedback if EDCF boards are used for that purpose.
QA9
Q: What are the environmental or temperature limits?
A: The published sources do not always give full ranges; however, as with similar EX2100 modules, it is expected to operate in industrial/turbine ambient conditions—probably from about ‑30°C up to +65°C or greater.
QA10
Q: How easy is it to replace the board in field service?
A: Replacement is fairly direct: de‑energize system; open control rack; remove screws / captive hardware; pull module (single slot) from rack; reinsert new board; reconnect fiber‑optic connectors and tool/keypad ports; verify indicators once powered.
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