MICROELETTRICA MC40-SEF, Operation Manual

Page: 2 / 36

MC40-SEF
Doc. N°
MO-0475-ING
Copyright 2012 FW: 1320.38.01.x Date 06.09.2022 Rev. 1 Pag. 2 of 36
1. General Utilization and Commissioning Directions ________________________________________________________ 3
1.1 - Storage and Transportation ______________________________________________________________________ 3
1.2 - Installation __________________________________________________________________________________ 3
1.3 - Electrical Connection ___________________________________________________________________________ 3
1.4 - Measuring Inputs and Power Supply _______________________________________________________________ 3
1.5 - Outputs Loading ______________________________________________________________________________ 3
1.6 - Protection Earthing ____________________________________________________________________________ 3
1.7 - Setting and Calibration _________________________________________________________________________ 3
1.8 - Safety Protection ______________________________________________________________________________ 3
1.9 - Handling ____________________________________________________________________________________ 3
1.10 - Maintenance ________________________________________________________________________________ 4
1.11 - Waste Disposal of Electrical & Electronic Equipment __________________________________________________ 4
1.12 - Fault detection and repair ______________________________________________________________________ 4
2. General Characteristics _____________________________________________________________________________ 5
2.1 - Power Supply ________________________________________________________________________________ 5
2.2 - Operation and Algorithms _______________________________________________________________________ 6
2.2.1 - Reference Input Values ____________________________________________________________________________________ 6
2.2.2 - Input quantities __________________________________________________________________________________________ 6
2.2.3 - Time Current Curves IEC (TU1029 Rev.0) _____________________________________________________________________ 8
2.2.4 - Time Current Curves IEEE (TU1028 Rev.0) _____________________________________________________________________ 9
3. Functions and Settings (Function) ____________________________________________________________________ 10
3.1 - T> (F49) - Thermal Image protection level _________________________________________________________ 10
3.1.1 - Thermal Image Curves (TU0445 Rev.0) ______________________________________________________________________ 11
3.2 - I> (1F51) - First overcurrent protection level _______________________________________________________ 12
3.3 - I>> (2F51) - Second overcurrent protection level ___________________________________________________ 13
3.4 - IH (3F51) - Third overcurrent protection level ______________________________________________________ 14
3.4.1 – Automatic doubling or Overcurrent thresholds on current inrush ___________________________________________________ 14
3.5 - Io> (1F51N) - First Earth Fault protection level _____________________________________________________ 15
3.6 - Io>> (2F51N) - Second Earth Fault protection level __________________________________________________ 15
3.7 - IoH (3F51N) - Third Earth Fault protection level _____________________________________________________ 16
3.8 – So> - Sensitive Earth Fault protection level ________________________________________________________ 16
3.9 - BF (F51BF) - Breaker Failure ____________________________________________________________________ 17
3.10 - RTD - Remote Trip __________________________________________________________________________ 17
3.11 - I.R.F. - Internal Relay Failure __________________________________________________________________ 17
3.12 - CBMng – Close Breaker Manage ________________________________________________________________ 18
3.13 - Osc - Oscillographic Recording _________________________________________________________________ 18
3.14 - Comm – Communication Parameters ____________________________________________________________ 19
3.15 - LCD – Display and Buzzer operation _____________________________________________________________ 19
4. Logic Blocking of Functions _________________________________________________________________________ 20
4.1 - Blocking Outputs _____________________________________________________________________________ 20
4.2 – Blocking Inputs ______________________________________________________________________________ 20
5. Output Relays ___________________________________________________________________________________ 20
6. Digital Inputs ____________________________________________________________________________________ 21
7. Self-diagnostic ___________________________________________________________________________________ 21
8. Relay Management _______________________________________________________________________________ 22
9. Signalizations ___________________________________________________________________________________ 23
10. Keyboard Buttons _______________________________________________________________________________ 23
11. Serial Communication Port ________________________________________________________________________ 24
11.1 - Main RS485 Serial Communication Port __________________________________________________________ 24
11.2 - Communication Port on Front Face Panel _________________________________________________________ 25
12. Menu and Variables ______________________________________________________________________________ 26
12.1 - Real Time Measurements _____________________________________________________________________ 26
12.2 - Meas (Instantaneous Measurements) ____________________________________________________________ 26
12.3 - Counter (Operation Counters) __________________________________________________________________ 26
12.4 - LastTrip (Event Recording) ____________________________________________________________________ 27
12.5 - R/W Set (Programming / Reading the Relay Settings) _______________________________________________ 28
12.5.1 - CommAdd (Communication Address) _______________________________________________________________________ 28
12.5.2 - Time/Date (Time/Date) __________________________________________________________________________________ 28
12.5.3 - RatedVal (Rated Input Values) ____________________________________________________________________________ 28
12.5.4 - Function (Functions) ____________________________________________________________________________________ 29
12.6 - RelayCfg (Relay Configuration) _________________________________________________________________ 31
12.7 - Commands ________________________________________________________________________________ 31
12.8 - Info&Ver (Firmware - Info&Version) _____________________________________________________________ 31
13. Keyboard Operational Diagram _____________________________________________________________________ 32
14. Password ______________________________________________________________________________________ 33
14.1 - MS-Com Password ___________________________________________________________________________ 33
15. Maintenance ___________________________________________________________________________________ 33
16. Power Frequency Insulation Test ____________________________________________________________________ 33
17. Connection Diagram _____________________________________________________________________________ 34
18. Overall Dimensions ______________________________________________________________________________ 34
19. Direction for Pcb's Draw-Out and Plug-In _____________________________________________________________ 35
19.1 - Draw-Out _________________________________________________________________________________ 35
19.2 - Plug-In ___________________________________________________________________________________ 35
20. Electrical Characteristics __________________________________________________________________________ 36