GE 531X306LCCBAG3 LCCBA LAN Communication Board

Description

Hardware & Electrical Specifications

‑ Manufacturer: GE General Electric ‑ Compatible System: DC‑300, Speedtronic Mark‑V drive platform ‑ Functional Acronym: LCCBA (LAN Communication Board) ‑ Supported Protocol: ARCNET ‑ Connectors: ARCNET coaxial port, multi‑pin ribbon headers for backplane interface with DCCA controller ‑ On‑Board Jumpers: Station address and communication‑mode configuration jumpers. All jumper positions must be exactly duplicated during replacement ‑ Indicators: LED array for transmit, receive and communication‑fault diagnosis ‑ Power Source: +5 VDC, ±15 VDC supplied from drive‑rack backplane ‑ PCB Finish: Conformal coated multilayer PCB ‑ Compatibility Restriction: For DC‑300 / Mark‑V drive rack; incompatible with Mark‑VI / Mark‑VIe racks. G3 denotes hardware‑firmware revision.

Environmental Specifications

‑ Operating Temperature: 0 °C ~ +60 °C ‑ Storage Temperature: −40 °C ~ +85 °C ‑ Relative Humidity: 5%‑95 % non‑condensing ‑ Installation Environment: Drive‑control cabinet interior, Pollution Degree 2 ‑ EMC: Designed for power‑plant cabinet EMI and switching‑transient conditions

Mechanical Data

‑ Physical Dimension: approx 305 mm × 205 mm ‑ Mounting: Standard slot installation inside DC‑300 / Mark‑V drive rack ‑ Weight: approx 0.98 kg

Core Functions

1. ARCNET bus communication: Real‑time data exchange between DCCA drive controller, local operator panel and plant supervisory system.
2. Network gateway function: Uploads drive operating values, alarm information and trip event logs; downloads drive configuration parameters.
3. Hardware station‑address setting: Jumpers set node address for multi‑drive network topology.
4. Firmware‑based communication processing: EPROM stores dedicated ARCNET communication firmware.
5. On‑board diagnostics: LED indicators assist commissioning and troubleshooting of network link faults.

Installation, Replacement & Critical Warnings

1. Complete system power‑down and lock‑out procedure required before servicing. Non‑hot‑swappable. ESD wrist‑strap protection is mandatory for PCB and EPROM chips.
2. Record original station‑address jumper positions before removal. Wrong address setting results in network conflict and total communication loss.
3. Secure coaxial cable and ribbon‑cable connectors firmly; poor contact causes intermittent communication dropout.
4. After power‑on, perform communication verification: check LED status, confirm data interaction between drive controller and HMI.

5. Common failure mode: Coaxial‑line surge damage to network transceiver circuits. Inspect ARCNET cabling when random communication errors occur.