GE IS200VCMIH2CAA VCMI VME‑Bus Master Communication Controller Board

Description

Hardware & Electrical Specifications

• Model：IS200VCMIH2CAA
• Part Number：IS200VCMIH2CAA (IS215VCMIH2CA as faceplate assembly)Moore Auto…
• Module Type：VCMI VME‑Bus Master Communication Controller Board
• Mounting：6U single‑slot VME rack backplane installation inside control cabinet
• Power supply：+5 VDC, ±12 VDC powered via VME backplane
• Main processor：TMS320C32 32‑bit floating‑point DSP processor
• Communication interface：3‑channel IONet fiber‑optic ports for TMR redundant network; VME backplane bus; front‑panel RS‑232 debug serial port, reset push‑buttonMoore Auto…
• Communication rate：10 Mbps IONet fiber‑optic network
• Fault‑tolerance：SIFT voting algorithm for TMR data comparison, fault channel identification and isolation
• Interface：Front‑panel fiber‑optic connectors, RS‑232 port, multi‑pin VME backplane connector
• PCB treatment：CAA‑revision conformal coated for dust‑moisture‑corrosion resistance
• On‑board protection：ESD protection, transient surge suppression, link‑status monitoring, communication frame error counter, self‑watchdog circuit
• Compatibility note：Cannot run standalone; must match Mark VI VME‑based processor packs; full communication‑loop simulation test mandatory after replacement。

Environmental Specifications

• Operating temperature：0 ℃ ~ +70 ℃
• Storage temperature：‑40 ℃ ~ +85 ℃
• Relative humidity：5%‑95% non‑condensing
• Installation location：Indoor turbine control cabinet
• EMC compliance：IEC 61000‑6‑2
• Certifications：CE

Mechanical Data

• Weight：approx 0.75 kg
• Dimension：260 mm × 160 mm × 25 mm
• Handling note：ESD‑sensitive PCB; high‑speed fiber‑optic communication circuit, anti‑static wrist‑strap mandatory during handling

Main Functions

1. Serve as UDH main communication controller, realize real‑time bidirectional IONet fiber‑optic data exchange between main control rack and distributed I/O racks, processor packs and field terminal boards.
2. Execute SIFT fault‑tolerant voting for TMR triple‑redundant system, complete data comparison, fault diagnosis and faulty channel isolation.
3. Distribute main CPU control commands to remote I/O modules; upload field measurement, protection status and alarm data back to main controller via VME bus.
4. RS‑232 serial debug port supports local board maintenance, parameter check and diagnostic log readout.
5. On‑board self‑diagnosis: detect fiber‑optic link break, communication frame error count over‑threshold, VME‑bus abnormal, watchdog timeout; upload fault alarm to turbine main controller.
6. LED status indication:
   • Green LED：Board power supply normal
   • Yellow LED：IONet fiber‑optic link communication active
   • Red LED：Communication‑link fault / VME‑bus fault / module failure alarm

Installation & Wiring Requirements

1. Cut off rack power supply before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling PCB board.
2. Insert board into designated VME slot, secure panel locking screws; install fiber‑optic cables with minimum bending radius requirement, avoid sharp bending and squeezing of optical fiber.
3. Fiber‑optic wiring strictly follow GE Speedtronic Mark VI wiring manual; keep optical fiber cables physically separated from high‑power interference cables.
4. Complete protective grounding according to GE Speedtronic system specification.
5. After replacement: verify VME rack power status, check each IONet link status LED, test cross‑rack data transmission and redundancy switching performance before commissioning.
6. Replacement note: For TMR triple‑redundant system application, hardware consistency of related VCMI boards shall be verified; full communication‑loop simulation test mandatory before unit put‑into‑service.