Microelettrica Scientifica MC2-30T User Manual

70 pages

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MC2-30T

Doc. N° MO-0483-ING

Date

17.03.2022

Rev.

Pag.

MICROPROCESSOR

OVERCURRENT AND EARTH FAULT

RELAY

TYPE

“MC2-30T”

OPERATION MANUAL

Table of Contents2
General Utilization and Commissioning Directions4
Storage and Transportation4
Installation4
Electrical Connection4
Measuring Inputs and Power Supply4
Outputs Loading4
Protection Earthing4
Setting and Calibration4
Safety Protection4
Handling4
General5
Power Supply5
Front Panel5
Keyboard and Display6
Display6
Icons of Display7
Signalization8
Leds Manual Reset8
Display of the Last Trip8
Leds Configuration9
Name10
Link Enable10
Status10
Light Prog10
Funct. Mode10
Functions10
Example: Change Settings for "Led112
Link Enable12
Flashing12
Funct.mode13
Functions13
User Variables14
Name14
User Descr14
Linked Functions14
Oplogic14
Timer14
Timer Type14
Extra14
Logical Status14
Example: Setting "User Variable14
User Description" (User Descr.)15
Linked Functions15
Operation Logic" (Oplogic)16
Timer16
Timer Type17
Extra17
Local Commands18
Measure19
Maximum Values (Only Via Software)19
Trip Recording20
Partial Counters22
Total Counters23
Events24
Events on Display25
System (System Parameters)27
Settings28
Modifying the Setting of Variables29
Password30
Menu: Communic. (Communication)31
Description of Variables31
Front Panel USB Serial Communication Port (RS232)31
Cable for Connection from Relay to Personal Computer31
Main Serial Communication Port (RS485)31
Menu: Customize (Human Machine Interface)32
Description of Variables32
Function: Filesys (File System and Disk Management)33
Description of Variables33
Download File Informations33
Function: T> (Thermal Image F49)35
Description of Variables35
Trip and Alarm35
Function: 1I> (First Overcurrent Element F50/51)37
Description of Variables37
Blocking Logic (BO-BI)38
Automatic Doubling of Overcurrent Thresholds on Current Inrush38
Function: 2I> (Second Overcurrent Element F50/51)39
Description of Variables39
Function: 3I> (Third Overcurrent Element F50/51)39
Function: 1Io> (First Earth Fault Element 50N/51N)40
Description of Variables40
Function: 2Io> (Second Earth Fault Element 50N/51N)40
Function: 3Io> (Third Earth Fault Element 50N/51N)41
Description of Variables41
Function: 1Is> (First Negative Sequence Element F46)42
Description of Variables42
Time/Current Operation of the First Current Unbalance Element "F(T)42
Function:2Is> (Second Negative Sequence Element F46)42
Function: Reclos (Automatic Reclosure RCL)43
Description of Variables44
Definitions44
Operation46
Reclose Command46
Function: Ttriprd (Trip Time Reduction)47
Description of Variables47
Operation47
Function: TCS (Trip Circuit Supervision)48
Description of Variables48
Operation48
Function: IRF (Internal Relay Fault)49
Description of Variables49
Operation49
Function: Breakerfail (Breaker Failure)49
Function: Oscillo (Oscillographic Recording)50
Description of Variables50
Operation50
Available on Software51
Setting "User Trigger Oscillo52
Example: Setting "Oscillo Trigger Logic53
Function: CB Mngn (Control C/B)56
Description of Variables56
Push-Buttons (Programmable Only Via Software)56
Function: Extrescfg (External Reset Configuration)58
Description of Variables58
Input - Output (Via Software)58
Digital Input58
DI" Configuration (Via Software)58
Example59
Name59
Status59
Functions59
Example: Setting "Digital Input59
Physical Outputs60
DO" Configuration60
Example Configuration60
Functions - Operation Mode61
Infostatus65
Date and Time66
Clock Synchronization67
Healthy (Diagnostic Information)68
Dev.info (Relay Version)68
Maintenance68
Wiring Diagram69
Overall Dimensions69
Electrical Characteristics70

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Microelettrica Scientifica MC2-30T Specifications

General

Brand	Microelettrica Scientifica
Model	MC2-30T
Category	Relays
Language	English

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