ABB REX 521 User Manual

3
REX 521
Issued: 29.11.2001
Version: E/04.06.2004
We reserve the right to change data without prior notice.
Protection Relay
Operator’s Manual
Contents
1. About this manual .....................................................................5
1.1. Copyrights .....................................................................................5
1.2. Trademarks ...................................................................................5
1.3. General .........................................................................................5
1.4. Abbrevitations ...............................................................................6
1.5. Related documents .......................................................................6
1.6. Document revisions .......................................................................7
2. Safety information .....................................................................7
3. Introduction ...............................................................................8
3.1. REX 521 protection relay ..............................................................8
4. Instructions ................................................................................9
4.1. HMI features ..................................................................................9
4.1.1. Push-button functions ......................................................11
4.1.2. Selecting language ..........................................................12
4.1.3. Passwords .......................................................................13
4.1.4. Display backlight ..............................................................13
4.1.5. Display contrast ...............................................................13
4.1.6. Display test ......................................................................14
4.1.7. Selecting primary values ..................................................14
4.1.8. Optically isolated serial communication port ....................14
4.2. Menu chart ..................................................................................15
4.2.1. Measurement menu .........................................................16
4.2.2. Event menu ......................................................................17
4.2.3. Manual control .................................................................18
4.2.3.1. Local/Remote position selection ........................18
4.2.3.2. Controlling breaker .............................................19
4.2.4. Setting parameters ...........................................................21
4.2.5. Setting bit masks ..............................................................21
4.3. Indication messages ...................................................................22
4.3.1. Protection indications .......................................................22
4.3.2. Self-supervision ...............................................................23
4.3.3. Condition monitoring indication ........................................24
4.4. LED indicators .............................................................................25
4.4.1. Green indication LED (READY) .......................................25
4.4.2. Yellow indication LED (START) .......................................25
4.4.3. Red indication LED (TRIP) ...............................................25
4.5. Alarm LEDs .................................................................................26
4.5.1. Alarm LED 1-8 .................................................................26
1MRS 751107-MUM

ABB REX 521 Specifications

General

Brand	ABB
Model	REX 521
Category	Other
Language	English