GE DS200FCGDH1B Gate Distribution and Status Card (FCGD)

Description

Hardware & Electrical Specifications

‑ Model: DS200FCGDH1B ‑ Part Number: DS200FCGDH1B ‑ Module Type: Mark V / LS2100 LCI Gate Distribution and Status PCB Board (FCGD)Direct Tur… ‑ Mounting: Slide‑in VME rack‑mount installation with front‑panel ejector latches ‑ Input power: +5 VDC, ±15 VDC supplied from VME system backplane ‑ Bridge interface: 6‑pulse phase‑controlled non‑reversing SCR bridge; 12‑channel gating signal interface ‑ Signal input range: −8 mV ~ +45 mV for bridge feedback measurement channels ‑ Configuration components: On‑board hardware jumpers for system‑mode selection and signal‑path assignment ‑ Connectors: Dual VME rear backplane connectors; multiple front‑panel fiber‑optic / field‑signal interface ports for SCR gating and bridge‑status feedback ‑ Diagnostics resources: Multiple front‑panel LED status indicators for power, heartbeat, firing‑activity and hardware‑fault alarms; built‑in system‑clock and heartbeat‑watchdog circuits ‑ Isolation: Galvanic isolation between low‑voltage VME logic circuits and high‑power‑bridge‑related signal interfaces ‑ PCB treatment: Industrial conformal‑coated multilayer circuit board ‑ Compatibility note: Designed exclusively for GE Speedtronic Mark V and LS2100 LCI static‑starter platforms; not drop‑in compatible with Mark VI / Mark VIe systems. After replacement, strictly copy original jumper‑configuration, verify full connector seating, check LED status, validate feedback‑sampling accuracy and complete static firing‑signal tests before applying high‑voltage power.

Environmental Specifications

‑ Operating temperature: 0 ℃ ~ +60 ℃ ‑ Storage temperature: −40 ℃ ~ +85 ℃ ‑ Relative humidity: 5%‑95% non‑condensing ‑ Installation location: Indoor control cabinet, Pollution Degree 2, IP20 ‑ EMC compliance: Industrial EMC requirements for power‑turbine and static‑starter equipment ‑ Certifications: CE, UL compliant for power‑generation control‑system components

Mechanical Data

‑ Board dimension: 234 mm × 160 mm (9.2 in × 6.3 in) ‑ Mounting: Standard VME 6U slide‑in rack assembly with front‑panel ejector latches ‑ Weight: approx 0.85 kg

Main Functions

1. Receives and decodes high‑speed SCR firing‑command data transmitted from the DSPC processor board, distributes isolated gating trigger signals to each leg of the six‑pulse SCR power bridge for LCI static‑starter commutation controlDirect Tur….
2. Acquires, scales and multiplexes bridge‑side feedback signals including current, voltage and frequency; transmits processed measurement values and bridge‑component fault‑status information back to DSPC over VME backplane for closed‑loop calculation and fault‑alarm logicDirect Tur….
3. Embedded system clock, hardware reset and heartbeat‑watchdog circuits supervise board health; front‑panel LED indicators support on‑site commissioning and fault‑isolation maintenance.

Installation & Wiring Requirements

1. Cut off complete rack low‑voltage power and high‑voltage static‑starter power before installation or replacement. Non‑hot‑swappable. ESD wrist‑strap protection is mandatory during board handling.
2. Insert DS200FCGDH1B into target VME slot, push fully home to engage rear backplane connectors and actuate front‑panel ejector latches to lock. Reproduce jumper‑configuration exactly matching original‑board hardware settings. Confirm all fiber‑optic and field‑signal connectors are fully seated.
3. All control‑signal and fiber‑optic wiring must strictly follow Mark V / LS2100 system‑wiring drawings. Reliable protective‑earth connection for control cabinet is mandatory.
4. After replacement: Restore rack low‑voltage power first. Observe front‑panel LED power and heartbeat‑status. Verify bridge‑feedback‑signal values from controller diagnostic menus. Perform static firing‑signal verification test before applying high‑voltage power. Validate static‑starter commutation and closed‑loop operating‑performance.
5. Replacement note: Incorrect jumper‑configuration, poor backplane contact or loose fiber‑optic connections will cause gating‑signal loss, bridge‑commutation failure or turbine‑trip events. Full‑system commissioning and protection‑logic verification test is mandatory before putting static‑starter into service.