Table Of Contents - Mitsubishi Electric V Series Instruction Manual

Contents
1. Appearance .................................................................................................................................. 6
2. Outline dimensions ....................................................................................................................... 7
3. Package ........................................................................................................................................ 7
4. Storage ......................................................................................................................................... 8
5. Required tool ................................................................................................................................ 8
6. Unpacking ..................................................................................................................................... 9
6.1 Fixed type ....................................................................................................................... 10
6.2 Drawout type .................................................................................................................. 10
6.3 CONNECT → DISCONNECT position ........................................................................... 11
6.4 DISCONNECT → CONNECT position ........................................................................... 14
7. Handling ..................................................................................................................................... 17
8. Installation .................................................................................................................................. 18
8.1 Universal terminal .......................................................................................................... 20
8.2 Precautions for connecting ............................................................................................. 21
8.3 Check of the N-pole (4-Pole) .......................................................................................... 22
8.4 Control circuit ................................................................................................................. 22
9. Attachment of the Interphase barrier .......................................................................................... 23
10. Opening/Closing operation ....................................................................................................... 23
10.1 Conditions allowable for the closing operation ............................................................. 23
10.2 Direct switching operation ............................................................................................ 24
10.3 Remote opening/closing operation ............................................................................... 25
11. OCR alarm (AL) [MRE: Manual reset type] .............................................................................. 26
12. Cylinder lock (CYL) ................................................................................................................... 27
12.1 Locking procedures ..................................................................................................... 27
12.2 Releasing procedures .................................................................................................. 27
13. Safety shutter (SST) ................................................................................................................. 28
14. Safety shutter lock (SST-Lock) ................................................................................................. 29
15. Cell switch (CL) ........................................................................................................................ 30
15.1 How to check the specifications ................................................................................... 30
15.2 How to connect terminals ............................................................................................. 30
16. Electronic trip relay (ETR) section ............................................................................................ 31
16.1 Load current LED ......................................................................................................... 32
16.2 Pre-alarm function ........................................................................................................ 32
16.3 Control power supply .................................................................................................... 32
17. Characteristics setting of ETR .................................................................................................. 34
17.1 Setting of over-current tripping characteristics ............................................................. 34
17.2 Setting of ground fault protection characteristics ......................................................... 35
17.3 Setting procedure ......................................................................................................... 36
17.4 Precautions when checking characteristics using the field test device ........................ 37
18. Procedures for operating Display (LCD) ................................................................................... 38
18.1 List of display items ...................................................................................................... 38
18.2 LCD display .................................................................................................................. 38
18.3 Basic operation ............................................................................................................. 38
18.4 Screen display and LCD setting ................................................................................... 39
18.5 Display of measured values ......................................................................................... 40
18.6 Trip information ............................................................................................................. 42
19. Troubleshooting of ETR ............................................................................................................ 43
20. Wiring diagram ......................................................................................................................... 44
21. Technical note ........................................................................................................................... 45
21.1 Arc space ...................................................................................................................... 45
21.2 Reverse connection available ...................................................................................... 45
21.3 Service Conditions ....................................................................................................... 45
22. Inspection and Maintenance ..................................................................................................... 46
22.1 Guidances for Inspection and Maintenance ................................................................. 46
22.2 Preparation before Inspection ...................................................................................... 47
22.3 Inspection Details ......................................................................................................... 48
22.4 Fault Diagnosis ............................................................................................................. 51
23. Service network ........................................................................................................................ 53
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