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GE IS200VROCH1BBR Vibration Relay Output Card
Configured for vibration-driven discrete actuation in GE Mark VI turbine control architecture, the GE IS200VROCH1BBR (IS200VROCH1BBR Vibration Relay Output Card) provides electromechanical relay switching based on processed vibration input signals originating from VVIB monitoring channels or controller logic evaluation paths.
The module executes alarm and trip relay state changes through six Form-C output channels, converting digital protection signals into isolated dry-contact switching events for external interlock circuits and shutdown logic paths.
Hardware Specifications
| Parameter |
Specification |
| Model |
IS200VROCH1BBR |
| Brand |
GE |
| Origin |
USA |
| Weight |
0.3 kg |
| Dimensions |
160 mm x 120 mm x 25 mm |
| Operating Temp |
-30 deg C to +65 deg C |
| Power Consumption |
Backplane-fed logic supply (not specified) |
| Relay Outputs |
6 Form-C (SPDT) |
| Contact Ratings |
24 VDC @ 5 A; 48 VDC @ 1.2 A; 125 VDC @ 0.6 A |
| Input Source |
VVIB board / controller |
| Isolation |
Channel-to-channel isolation |
| Mounting |
Panel-mounted PCB |
| Connectors |
Euro-style terminal blocks |
| Coating |
Conformal coating |
GE Mark VI Vibration Trip Output Execution Architecture
The IS200VROCH1BBR implements relay-based discrete actuation derived from vibration protection logic executed within the Mark VI control chain. Input signals are preprocessed by vibration acquisition modules (such as VVIB boards), then evaluated against threshold logic within the control system before being mapped to relay output states.
Each Form-C relay channel is electrically isolated to prevent cross-coupling during simultaneous trip events. Contact switching is driven by internal coil energization controlled via backplane command structures. The relay output stage provides galvanically separated dry-contact transitions suitable for external interlock circuits, where timing behavior is governed by electromechanical response characteristics rather than deterministic bus latency.
Frequently Asked Questions (FAQ)
Q: Are relay channels independent in the IS200VROCH1BBR?
A: Yes. Each Form-C relay channel is electrically isolated to prevent cross-channel interference during vibration trip events.
Q: Can relay outputs handle continuous switching under load?
A: Relay life is determined by mechanical contact wear and load conditions. Switching inductive loads requires external suppression to limit contact degradation.
Q: Does the card operate without the VVIB input board?
A: No. Relay actuation depends on vibration signal processing upstream. Without VVIB or controller input, output states remain undefined or inactive depending on system configuration.
Field Installation Guidelines
Install the module on a grounded control cabinet panel with verified chassis continuity. Maintain segregation between relay load wiring and low-level vibration signal cables to reduce electromagnetic coupling. All terminal connections must be fully seated and mechanically secured before energization. For inductive relay loads, external suppression devices such as RC snubbers or flyback diodes should be applied to limit voltage transients. Ensure adequate spacing between adjacent relay modules to avoid thermal accumulation in dense cabinet layouts.
