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146
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6 F 2 S 0 8 4 6
3.1.3 Signal Processing Module
The signal processing and communication module (SPM) incorporates a signal processing
circuit and a communication control circuit. Figure 3.1.3.1 shows the block diagram.
The signal processing circuit consists of an analog filter, multiplexer, analog to digital (A/D)
converter, main processing unit (MPU1) and memories (RAM and ROM), and executes all kinds
of processing including protection, measurement, recording and display.
The analog filter performs low-pass filtering for the corresponding current and voltage signals.
The SPM contains a lithium-ion battery, which should be removed at the end-of-life of the
product. The nominal backup time of a lithium-ion battery is one year
at continuous use after the
shipment from the factory.
The A/D converter has a resolution of 16 bits and samples input signals at sampling frequencies
of 2400Hz (at 50Hz) and 2880Hz (at 60Hz).
The MPU1 carries out operations for the measuring elements and scheme logic operations for
protection, recording, displaying and signal transmission control. It implements 60 MIPS and
uses two RISC (Reduced Instruction Set Computer) type 32-bit microprocessors.
The SPM can be provided with Optical interface or Ethernet LAN interface for serial
communication system.
Figure 3.1.3.1 Signal Processing and Communication Module
Analog filter
Other
modules
A/D
converter
MPU1
Analog filter
Analog filter
Multiplexer
Analog
input
RAM
ROM
Optical I/F
(Option)
Link with Serial
communication
system
Ethernet LAN
I/F (Option)
Summary of Contents for GRZ100 B Series
Page 264: ... 263 6 F 2 S 0 8 4 6 Appendix A Block Diagram ...
Page 271: ... 270 6 F 2 S 0 8 4 6 ...
Page 272: ... 271 6 F 2 S 0 8 4 6 Appendix B Signal List ...
Page 307: ... 306 6 F 2 S 0 8 4 6 ...
Page 308: ... 307 6 F 2 S 0 8 4 6 Appendix C Variable Timer List ...
Page 310: ... 309 6 F 2 S 0 8 4 6 Appendix D Binary Input Output Default Setting List ...
Page 321: ... 320 6 F 2 S 0 8 4 6 ...
Page 322: ... 321 6 F 2 S 0 8 4 6 Appendix E Details of Relay Menu and LCD Button Operation ...
Page 331: ... 330 6 F 2 S 0 8 4 6 ...
Page 340: ... 339 6 F 2 S 0 8 4 6 Appendix G Typical External Connections ...
Page 377: ... 376 6 F 2 S 0 8 4 6 ...
Page 384: ... 383 6 F 2 S 0 8 4 6 Appendix J Return Repair Form ...
Page 388: ... 387 6 F 2 S 0 8 4 6 Customer Name Company Name Address Telephone No Facsimile No Signature ...
Page 389: ... 388 6 F 2 S 0 8 4 6 ...
Page 390: ... 389 6 F 2 S 0 8 4 6 Appendix K Technical Data ...
Page 401: ... 400 6 F 2 S 0 8 4 6 ...
Page 402: ... 401 6 F 2 S 0 8 4 6 Appendix L Symbols Used in Scheme Logic ...
Page 405: ... 404 6 F 2 S 0 8 4 6 ...
Page 406: ... 405 6 F 2 S 0 8 4 6 Appendix M Example of Setting Calculation ...
Page 417: ... 416 6 F 2 S 0 8 4 6 ...
Page 418: ... 417 6 F 2 S 0 8 4 6 Appendix N IEC60870 5 103 Interoperability and Troubleshooting ...
Page 434: ... 433 6 F 2 S 0 8 4 6 Appendix P Inverse Time Characteristics ...
Page 437: ... 436 6 F 2 S 0 8 4 6 ...
Page 438: ... 437 6 F 2 S 0 8 4 6 Appendix Q Failed Module Tracing and Replacement ...
Page 444: ... 443 6 F 2 S 0 8 4 6 Appendix R Ordering ...
Page 447: ......