Description
Product Parameters
| Parameter | Specification |
|---|---|
| Brand / Series | GE Mark VIe Speedtronic |
| Model | IS200VCCCH1B |
| Redundant Analog Inputs | 8 redundant pairs (16 total analog inputs) |
| Input Types | 4–20 mA, 0–10 V, ±10 V (software-selectable per channel) |
| ADC Resolution | 16-bit SAR (10–500 SPS) |
| Accuracy | ±0.1% FS |
| Redundancy Logic | Automatic failover (hardware-based) |
| Input Impedance | 250 Ω (current mode), > 1 MΩ (voltage mode) |
| Filtering | Programmable low-pass filter (1–50 Hz) |
| Loop Power | 24 VDC (externally supplied only) |
| Isolation | 1500 VAC (field-to-system) |
| CMRR | >100 dB @ 50/60 Hz |
| Diagnostics | Open-circuit detection, over/under-range detection, loop power fault monitoring, channel mismatch detection, primary/secondary status monitoring |
| Status Indication | 8 green LEDs (primary active), 8 green LEDs (redundant active), 16 red LEDs (fault), 2 red summary fault LEDs |
| Operating Temperature | –30°C to +65°C |
| Storage Temperature | –55°C to +85°C |
| Mounting | VME rack-mount terminal board with front-panel I/O connectors |
| Backplane Interface | VME64x (A24/A32, D16/D32/D64) |
| EMC Compliance | IEC 61000-4 Level 4 |
Advantages & Key Features
-
Redundant Analog Inputs: IS200VCCCH1B provides 8 redundant analog input pairs with automatic failover, ensuring uninterrupted critical signal monitoring.
-
High Channel Density: 8 redundant pairs (16 total inputs) in a single VME slot.
-
Flexible Input Configuration: Each channel supports 4–20 mA, 0–10 V, or ±10 V inputs via GE ToolboxST.
-
Comprehensive Diagnostics: Open-circuit, over/under-range, loop power fault, channel mismatch, and primary/secondary status monitoring per channel.
-
Opto-Isolation: 1500 VAC isolation protects the Mark VIe backplane from field wiring faults.
-
ToolboxST Integration: Full configuration, monitoring, and diagnostics via GE ToolboxST.
-
Drop-In Replacement: Direct replacement for earlier GE redundant analog input terminal boards.
Application Fields
-
Gas & Steam Turbines (GE Frame 6B/7EA/9E/HA): Redundant speed probes, critical pressure transmitters, critical temperature transmitters, vibration monitoring.
-
Combined Cycle Plants: Redundant HRSG pressure and temperature transmitters.
-
Compressor Stations: Redundant suction/discharge pressure transmitters.
-
Nuclear Power Plants: Critical analog monitoring where redundancy is mandated.
-
Safety-Critical Applications: Monitoring in safety instrumented systems (SIS).
Comparison with Competing Products
| Feature | GE IS200VCCCH1B | Competitor A (Redundant Analog Module) | Competitor B (Analog Input Module) |
|---|---|---|---|
| Redundant Pairs | 8 (16 inputs) | 4 (8 inputs) | 0 (non-redundant) |
| Input Types | 4–20 mA, 0–10 V, ±10 V | 4–20 mA only | 4–20 mA, 0–10 V |
| Diagnostics | Open, over/under, loop power, mismatch, status | Open only | Open only |
| Isolation | 1500 VAC | 1000 VAC | 500 VDC |
| Operating Temp | –30°C to +65°C | 0°C to 50°C | 0°C to 60°C |
Key Advantage: IS200VCCCH1B provides 8 redundant analog input pairs—double the density of competing redundant modules—with comprehensive diagnostics, making it ideal for critical turbine applications requiring high-reliability analog monitoring.
Selection Guidelines & Recommendations
-
Redundancy Configuration: Determine critical analog signals requiring redundant monitoring—up to 8 redundant pairs per board.
-
Input Type: Configure 4–20 mA, 0–10 V, or ±10 V per channel in GE ToolboxST.
-
Loop Power: External 24 VDC supplies required—plan cabinet power distribution accordingly.
-
Diagnostic Configuration: Enable mismatch detection and status monitoring for critical circuits.
-
Controller Firmware: Requires Mark VIe processor firmware v8.0 or later.
-
Wiring Guidelines: Use shielded twisted-pair cables for analog signal wiring.
-
Spare Strategy: Keep one spare per turbine; lead times 6–10 weeks.
-
Retrofit: Direct replacement—regenerate configuration in GE ToolboxST.
Important Cautions
-
No Hot-Swap: De-energize rack before insertion/removal.
-
Input Polarity: Observe correct polarity for 4–20 mA loops and voltage inputs.
-
Loop Power: External 24 VDC required—ensure supplies are connected.
-
Grounding: Connect AGND to Mark VIe system ground at single star point.
-
Shield Termination: Ground signal cable shields only at cabinet end.
-
ESD Handling: Use grounded wrist straps; field repair not possible.
-
Redundancy Verification: Confirm both primary and secondary inputs are operational after installation.
-
Channel Mapping: Verify field wiring maps to correct ToolboxST channel numbers.
AB 1747-L532
YASKAWA SGMPH-01A2A-YR11
FOXBORO FBM237
A-B 2711-K3A10L1
Reviews
There are no reviews yet.