3
Directional or Non-Directional
Earth-Fault Relay
Operator’s Manual
REJ 527
1MRS 751055-MUM
Issued: 07.07.99
Version: A/17.04.2001
Checked: H.S.
Approved: L.N.
We reserve the right to change data without prior notice.
Contents
1. Introduction ............................................................................... 6
1.1. About this manual ..........................................................................6
1.2. The use of the relay .......................................................................6
1.3. Features .........................................................................................6
1.4. Guarantee ......................................................................................7
2. Safety Information ..................................................................... 8
3. Instructions ................................................................................ 9
3.1. MMI features ..................................................................................9
3.1.1. Front panel ..........................................................................9
3.1.2. Display ..............................................................................10
3.1.2.1. Display idle mode ................................................10
3.1.2.2. Display test at power up ......................................10
3.1.2.3. Display backlight .................................................10
3.1.2.4. How to adjust display contrast ............................11
3.1.3. How to use push-buttons ..................................................11
3.1.4. How to select language .....................................................12
3.1.5. Main menu ........................................................................13
3.1.6. Submenu ...........................................................................13
3.1.7. How to switch between front and rear connectors ............14
3.2. MMI operation levels ....................................................................15
3.2.1. Main level ..........................................................................15
3.2.2. User level ..........................................................................15
3.2.2.1. Menu groups of the user level .............................15
3.2.2.2. How to monitor measured values ........................15
3.2.2.3. How to monitor recorded data .............................15
3.2.2.4. INFO ....................................................................16
3.2.2.5. Alarms .................................................................16
3.2.2.6. Self-supervision, IRF ...........................................17
3.2.3. Passwords ........................................................................18
3.2.4. Technical level ..................................................................18
3.2.4.1. Menu system of parameters ................................18
3.2.4.2. How to change settings .......................................19
3.2.4.3. Configuration .......................................................20
3.2.4.4. How to acknowledge and reset indicators,
outputs and registers ...........................................21
3.2.5. Menu chart ........................................................................22
3.3. Protection relay indications ..........................................................22
3.3.1. Indication messages .........................................................22
3.3.2. Priority of indication messages .........................................23
