ABB REX 521 Technical Reference Manual, General

Also see for REX 521: Operator's manual Technical Reference Manual, General Operating guide Technical Reference Manual, Standard Configurations Technical Reference Manual, Standard Configurations

Contents

ABB REX 521 Technical Reference Manual, General Manual pdf 4 page image

4Protection RelayTechnical Reference Manual, GeneralREX 5214.1.8.1. High-speed power output (HSPO) ..................... 244.1.8.2. Single-pole power outputs (PO) ......................... 244.1.8.3. Signalling outputs (SO) ...................................... 254.1.9. Testing inputs and outputs .............................................. 254.1.10.Trip-circuit supervision ..................................................... 264.1.11.Self-supervision ............................................................... 284.1.11.1.Fault indication .................................................. 294.1.11.2.Fault indication texts .......................................... 304.1.12.Serial communication ...................................................... 314.1.12.1.Optical communication port on the rear panel ... 324.1.12.2.Isolated RS-485 connection on the rear panel .. 324.1.12.3.Front panel optical connection for a PC ............. 334.1.12.4.The service pin located on the rear panel .......... 334.1.12.5.SPA bus ............................................................. 334.1.12.6.LON bus ............................................................ 354.1.12.7.IEC 60870-5-103 bus ........................................ 374.1.12.8.Modbus bus ....................................................... 374.1.12.9.DNP 3.0 Bus ...................................................... 394.1.13.Time synchronization ....................................................... 394.1.14.Display panel (HMI) ......................................................... 404.1.15.Indication LEDs ............................................................... 414.1.16. Alarm LEDs .................................................................... 414.1.16.1.Special features of alarm LEDs ......................... 414.1.16.2.Writing signal names on alarm LED label .......... 424.2. Design description ...................................................................... 444.2.1. Technical data ........................................ 444.2.2. Terminal diagram of REX 521: Basic ............................... 484.2.3. Terminal diagram of REX 521: Medium ........................... 494.2.4. Terminal diagram of REX 521: High ................................ 504.2.4.1. Terminal diagram of H08 configuration .............. 514.2.5. Terminal diagram of REX 521: Sensor ............................ 524.2.6. Terminal connections ...................................................... 535. Service ..................................................................................... 566. Ordering information ............................................................. 577. Revision history of REX 521 .................................................. 587.1. Revision identification ................................................................. 587.2. Changes and additions to earlier released revision C ................ 587.3. Configuration, setting, and SA system tools ............................... 588. Index ........................................................................................ 599. Appendix A: IEC 60870-5-103 bus ........................................ 639.1. Functions supported by REX 521 ............................................... 63