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GE D20ME 526-2005-216943 – Main Processor Module for D20 Substation Controllers
Product Overview
The GE D20ME 526-2005-216943 is a high-performance main processor module specifically engineered for GE’s D20 substation automation platform. It resolves the challenge of efficient data processing and local automation control in power substation environments, serving as the core computing unit that manages I/O data, executes control logic, and enables communication with peripheral devices. This module integrates a 32-bit microprocessor with built-in memory, supporting real-time data acquisition and processing for critical substation operations. Designed for industrial ruggedness, it ensures stable performance in power generation, transmission, and distribution applications, enabling seamless integration with existing D20 system components.
Technical Specifications — D20ME 526-2005-216943
| Value | |
|---|---|
| Product Model | D20ME 526-2005-216943 |
| Manufacturer | GE (General Electric) |
| Product Type | Main Processor Module |
| Power | 5 VDC ±5%, 12 VDC ±10% |
| Communication / Protocol | Modbus RTU, IEC 60870-5-103, RS-485 |
| Operating Temperature | -40°C to +75°C |
| Mounting | VMEbus Chassis Mount (3U Form Factor) |
| Dimensions (HxWxD) | 100mm x 160mm x 220mm |
| Weight | 1.8 kg |
| Typical Interfaces | 2 x RS-485, 1 x RS-232, VMEbus Interface |
| Compliance | IEC 61850, UL 508, CE, RoHS |
GE D20ME 526-2005-216943
Key Features and Benefits — D20ME 526-2005-216943
- 32-bit microprocessor delivers fast data processing speeds, ensuring real-time response to substation control commands.
- Built-in non-volatile memory (NVRAM) preserves configuration data and control logic during power outages.
- VMEbus compatibility enables easy integration with D20 I/O modules and expansion units, reducing system upgrade costs.
- Rugged industrial design with EMI/RFI shielding, suitable for harsh substation environments with high electrical noise.
- Supports remote diagnostics and firmware updates, minimizing on-site maintenance time and operational downtime.
Related Models
- D20EME 0526-21170-1: Ethernet/memory expansion module for D20 controllers, enhancing communication and storage capacity.
- D200: 8-slot substation controller chassis, compatible with the D20ME processor for large-scale applications.
- 540-0250: I/O expansion module, adding 16 digital input/output channels to D20 systems.
- D20ME II: Updated main processor module with enhanced processing power and expanded protocol support.
Installation and Maintenance — D20ME 526-2005-216943
- Install the module in the designated 3U slot of a compatible D20 VME chassis, ensuring secure seating and proper connector alignment.
- Verify power supply voltage before power-up to prevent damage to the processor circuitry.
- Back up configuration data regularly using GE’s D20 Configuration Software to facilitate quick recovery after module replacement.
- Periodically check for loose connections and ensure adequate airflow around the module to prevent overheating.
- Service only by qualified personnel; replace the module if diagnostic indicators show persistent hardware faults.
