Each computer is composed of Steam Turbine Excitation System CPU board PCA-6743VE, A/D converter board, binary I/O board, serial communication board, and pulse forming board.
Based on the two computers, the regulator forms a dual-channel system in the main. That means two same sets of measuring; input, computing, and output are included. The cooperating between the two sets will be descripted in the operation manual
Specification of CPU board PCA-6743VE
·CPU: Embedded ST Microelectronics STPC 133MHz processor (provided fanless operation)
·BIOS: 4 Mbits Flash BIOS
·Chipset: STPC Elite 133
·System memory: Onboard 32MB SDRAM, and one optional SDRAM SODIMM max. 64MB socket
·PCI IDE interface: One Enhanced IDE interface. Supports 2 IDE devices PIO mode 3,4 with bus mastering up to 14MB/sec.
·Floppy disk driver interface: Supports up to two FDDs (360KB/ 1.2MB/ 720KB/ 1.44MB/ 2.88MB)
·Parallel Port: One parallel port, supports EPP/ECP
·IR Port: One 115kbps IrDA compliant serial infrared
·Serial Ports: 2 serial ports COM1: RS232, COM2: RS232/422/485
·Power supply voltage: +5V (4.75V 5.25V)
·Power consumption: Maximum :5V @ 2A, Typical: +5V @ 1.62A
·SSD supports DiskOnChip® 2000
Function of CPU board PCA-6743VE
1. Ultra low power, fanless EVA-X5800 CPU, 512/256MB onboard DDR2 memory
2. CRT+LCD dual video output
3. Integrated floating point computing unit, supporting FDD/PC104
4. Optional module for 4 * RS-485 with automatic data flow control
5. 4 * USB 2.0 interface, 2 * RS-232/422/485 (1 rear I/O)+2 * RS-232, supporting CF card slot
6. Size: 185 × 122mm
CPU board PCA-6743VE Detail Pictures
SPEED SENSORS USED FOR ROTATIONAL SPEED MONITOR MSC-2B
The rotational speed monitor MSC-2B can be used with various types of rotation speed sensors, including:
· Passive speed sensor
· Active speed sensor
· Hall speed sensor
· Eddy current sensor
· Reverse speed sensor
