Table Of Contents - Mitsubishi Electric MELPRO S Series Operation Manual

Numerical relay

Table of Contents

1. Features .................................................................................................................................... 9

2. Relay Specification ................................................................................................................. 10

2.1.

General specification (CBV2-A02S1) ................................................................................. 10

2.2.

General specification (COC4-A02S1) ................................................................................ 11

3. Selection Items ....................................................................................................................... 13

3.1.

Rotary Switch Assign ......................................................................................................... 13

3.2.

Switch-1: Select Item Switch ............................................................................................. 14

3.3.

Switch-2: Measurement Item Switch .................................................................................. 15

3.4.

Switch-3: Setting Item Switch ............................................................................................ 16

4. Front Panel Operation ............................................................................................................ 17

4.1.

Real-Time Measurement [MEASURE] ............................................................................... 17

Fault Record - Measurement Value [RECORD (RMS)] ..................................................... 18

4.2.

Fault Record - Relay Element [RECORD (ELE.)] .............................................................. 21

4.3.

4.4.

Relay Element Detection before Trip [PICK UP] ................................................................ 24

4.5.

Display Relay Element Setting [DISP. (SET.)] .................................................................... 26

4.6.

Change Relay Element Setting [SETTING] ....................................................................... 27

4.6.1.

Under Protection by Password ................................................................................................... 27

4.6.2.

Set Numerical Values .................................................................................................................. 30

4.6.3.

Set UV-TEST Mode (for CBV2) .................................................................................................. 31

4.6.4.

Set IDMT Characteristic Curve (for COC4) ................................................................................ 32

4.6.5.

Set FREQ. ................................................................................................................................... 33

4.6.6.

Set ALARM HOLD ...................................................................................................................... 34

4.6.7.

Set COMM. ST. No. .................................................................................................................... 35

4.6.8.

Set PASSWORD ......................................................................................................................... 36

4.7.

Forced Operation for Trip Digital Output [FORCED OP. (TRIP)] ........................................ 39

4.8.

Forced Operation for Relay Element [FORCED OP.＊] ..................................................... 41

4.9.

Clear Fault Record Data [RECORD RESET] ..................................................................... 43

4.10. Display Error Code by Self-Diagnosis [DISP. ERR.CODE] ................................................ 44

4.11. Clear Error Code [ERR. CODE. RESET] ........................................................................... 45