MC2-30M Doc.

N° MO-0495-ING

MICROPROCESSOR
MOTOR PROTECTION
RELAY

TYPE

“MC2-30M”

OPERATION MANUAL

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 MC2-30M Doc. N° MO-0495-ING

1. General Utilization and Commissioning Directions _________________________________________________________ 4

1.1 - Storage and Transportation _____________________________________________________________________ 4
1.2 - Installation __________________________________________________________________________________ 4
1.3 - Electrical Connection___________________________________________________________________________ 4
1.4 - Measuring Inputs and Power Supply _______________________________________________________________ 4
1.5 - Outputs Loading ______________________________________________________________________________ 4
1.6 - Protection Earthing ____________________________________________________________________________ 4
1.7 - Setting and Calibration _________________________________________________________________________ 4
1.8 - Safety Protection _____________________________________________________________________________ 4
1.9 - Handling ____________________________________________________________________________________ 4
1.10 - Maintenance ________________________________________________________________________________ 4
1.11 - Waste Disposal of Electrical & Electronic Equipment __________________________________________________ 4
1.12 - Fault Detection and Repair _____________________________________________________________________ 4
2. General _________________________________________________________________________________________ 5
2.1 - Power Supply ________________________________________________________________________________ 5
3. Front Panel ______________________________________________________________________________________ 5
4. Keyboard and Display ______________________________________________________________________________ 6
4.1 - Display _____________________________________________________________________________________ 6
5. Icons of Display ___________________________________________________________________________________ 7
6. Signalization _____________________________________________________________________________________ 8
6.1 - Leds Manual Reset ____________________________________________________________________________ 8
6.2 – Display of the last trip _________________________________________________________________________ 8
7. Leds Configuration_________________________________________________________________________________ 9
7.1 - Name _____________________________________________________________________________________ 10
7.2 - Link enable _________________________________________________________________________________ 10
7.3 - Status _____________________________________________________________________________________ 10
7.4 - Light Prog. _________________________________________________________________________________ 10
7.5 - Funct. Mode ________________________________________________________________________________ 10
7.6 - Functions __________________________________________________________________________________ 10
7.7 - Table 1 ____________________________________________________________________________________ 11
7.8 - Example: Change settings for “Led1” _____________________________________________________________ 12
7.8.1 - “Link Enable” ____________________________________________________________________________ 12
7.8.2 - “Flashing” ______________________________________________________________________________ 12
7.8.3 - “Funct.Mode” ____________________________________________________________________________ 13
7.8.4 -“Functions” _____________________________________________________________________________ 13
8. User Variables ___________________________________________________________________________________ 14
8.1 - Name _____________________________________________________________________________________ 14
8.2 - User Descr. _________________________________________________________________________________ 14
8.3 - Linked functions _____________________________________________________________________________ 14
8.4 - OpLogic ____________________________________________________________________________________ 14
8.5 - Timer _____________________________________________________________________________________ 14
8.6 - Timer type _________________________________________________________________________________ 14
8.7 – Extra _____________________________________________________________________________________ 14
8.8 - Logical status _______________________________________________________________________________ 14
8.9 - Example: Setting “User Variable” ________________________________________________________________ 14
8.9.1 - “User description” (User descr.) _____________________________________________________________ 15
8.9.2 - “Linked Functions” ________________________________________________________________________ 15
8.9.3 - “Operation Logic” (Oplogic) _________________________________________________________________ 16
8.9.4 - “Timer” ________________________________________________________________________________ 16
8.9.5 - “Timer type” ____________________________________________________________________________ 17
8.9.6 - “Extra” _________________________________________________________________________________ 17
9. Local Commands _________________________________________________________________________________ 18
10. Measure _______________________________________________________________________________________ 19
11. Maximum Values ________________________________________________________________________________ 20
12. Trip Recording __________________________________________________________________________________ 21
13. Partial Counters _________________________________________________________________________________ 23
14. Total Counters __________________________________________________________________________________ 24
15. Events ________________________________________________________________________________________ 25
15.1 – Events on display ___________________________________________________________________________ 26
16. System (System parameters) ______________________________________________________________________ 27
17. Settings _______________________________________________________________________________________ 28
17.1 - Modifying the setting of variables _______________________________________________________________ 29
17.2 - Password _________________________________________________________________________________ 30
17.3 – Menu: Communic. (Communication) ___________________________________________________________ 31
17.3.1 – Description of variables___________________________________________________________________ 31
17.3.2 – Front Panel USB serial communication port (RS232) ____________________________________________ 31
17.3.3 – Cable for connection from Relay to Personal Computer __________________________________________ 31
17.3.4 – Main serial communication port (RS485) _____________________________________________________ 31
17.4 - Menu: Customize (Human Machine Interface) ____________________________________________________ 32
17.4.1 – Description of variables___________________________________________________________________ 32
17.5 - Function: FileSys (File system and Disk management) ______________________________________________ 33
17.5.1 - Description of variables ___________________________________________________________________ 33
17.5.2 – Download file informations ________________________________________________________________ 33
17.6 - Function: T> (Thermal Image F49) _____________________________________________________________ 34

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 MC2-30M Doc. N° MO-0495-ING
17.6.1 - Description of variables ___________________________________________________________________ 34
17.6.2 - Trip and Alarm__________________________________________________________________________ 34
17.7 - Function: 1I> (First Overcurrent Element F50/51) _________________________________________________ 36
17.7.1 - Description of variables ___________________________________________________________________ 36
17.7.2 – Blocking Logic (BO-BI) ___________________________________________________________________ 37
17.7.3 - Automatic doubling of Overcurrent thresholds on current inrush ___________________________________ 37
17.8 – Function: 2I> (Second Overcurrent Element F50/51) _______________________________________________ 38
17.8.1 - Description of variables ___________________________________________________________________ 38
17.9 - Function: 3I> (Third Overcurrent Element F50/51) _________________________________________________ 38
17.9.1 - Description of variables ___________________________________________________________________ 38
17.10 - Function: 1Io> (First Earth Fault Element 50N/51N) _______________________________________________ 39
17.10.1 - Description of variables __________________________________________________________________ 39
17.11 - Function: 2Io> (Second Earth Fault Element 50N/51N) ____________________________________________ 39
17.11.1 - Description of variables __________________________________________________________________ 39
17.12 - Function: 3Io> (Third Earth Fault Element 50N/51N) ______________________________________________ 40
17.12.1 - Description of variables __________________________________________________________________ 40
17.13 - Function: 1Is> (First Negative Sequence Element F46)_____________________________________________ 41
17.13.1 - Description of variables __________________________________________________________________ 41
17.13.2 – Time/Current operation of the first Current Unbalance element “f(t)” ______________________________ 41
17.14 - Function:2Is> (Second Negative Sequence Element F46) ___________________________________________ 41
17.14.1 - Description of variables __________________________________________________________________ 41
17.15 - Function: MotSt (Motor Start) ________________________________________________________________ 42
17.15.1 - Description of variables __________________________________________________________________ 42
17.16 - Function: LR (Locked Rotor – Rotor jam) ________________________________________________________ 42
17.16.1 - Description of variables __________________________________________________________________ 42
17.17 - Function: StNo (Limitation Start Number) _______________________________________________________ 42
17.17.1 - Description of variables __________________________________________________________________ 42
17.18 - Function: StSeq (starting Sequence Control) _____________________________________________________ 43
17.18.1 - Description of variables __________________________________________________________________ 43
17.18.2 - Operation ____________________________________________________________________________ 43
17.19 - Function: I< (No load running) _______________________________________________________________ 43
17.19.1 - Description of variables __________________________________________________________________ 43
17.19.2 - Operation ____________________________________________________________________________ 43
17.20 - Function: TCS (Trip Circuit Supervision)_________________________________________________________ 44
18.20.1 - Description of variables __________________________________________________________________ 44
17.20.2 - Operation ____________________________________________________________________________ 44
17.21 - Function: IRF (Internal Relay Fault)____________________________________________________________ 45
17.21.1 - Description of variables __________________________________________________________________ 45
17.21.2 - Operation ____________________________________________________________________________ 45
17.22 - Function: BrkFail (Breaker Failure) ____________________________________________________________ 45
17.22.1 - Description of variables __________________________________________________________________ 45
17.22.2 - Operation ____________________________________________________________________________ 45
17.23 - Function: Oscillo (Oscillographic Recording) _____________________________________________________ 46
17.23.1 - Description of variables __________________________________________________________________ 46
17.23.2 - Operation ____________________________________________________________________________ 46
17.23.3 – Available on software ___________________________________________________________________ 47
17.23.4 – Setting “User Trigger Oscillo” _____________________________________________________________ 48
17.24.5 – Example: Setting “Oscillo Trigger Logic” _____________________________________________________ 49
17.24 - Function: CB Mngn (Control C/B) _____________________________________________________________ 52
17.24.1 - Description of variables __________________________________________________________________ 52
17.24.2 – Push-Buttons (Programmable only via software) ______________________________________________ 52
17.25 - Function: ExtResCfg (External Reset Configuration) _______________________________________________ 54
17.25.1 - Description of variables __________________________________________________________________ 54
18. Input – Output (via software)______________________________________________________________________ 54
18.1 – Digital Input _______________________________________________________________________________ 54
18.2 – “DI” Configuration (via software) _______________________________________________________________ 54
18.2.1 – Example ______________________________________________________________________________ 55
18.3 – Physical Outputs____________________________________________________________________________ 56
18.4 - “DO” Configuration __________________________________________________________________________ 56
18.4.1 - Example configuration ____________________________________________________________________ 56
18.4.2 - Functions - Operation Mode ________________________________________________________________ 57
19. InfoStatus _____________________________________________________________________________________ 59
20. Date and Time __________________________________________________________________________________ 60
20.1- Clock synchronization ______________________________________________________________________ 61
21. Healthy (Diagnostic Information) ___________________________________________________________________ 62
22. Dev.Info (Relay Version) __________________________________________________________________________ 62
23. Maintenance ___________________________________________________________________________________ 62
24. Wiring Diagram _________________________________________________________________________________ 63
25. Overall Dimensions ______________________________________________________________________________ 63
26. Electrical Characteristics __________________________________________________________________________ 64

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1. General Utilization and Commissioning Directions

Always make reference to the specific description of the product and to the Manufacturer's instruction.
Carefully observe the following warnings.
1.1 - Storage and Transportation

Must comply with the environmental conditions stated in the product's specification or by the applicable IEC
standards.
1.2 - Installation

Must be properly made and in compliance with the operational ambient conditions stated by the Manufacturer.
1.3 - Electrical Connection

Must be made strictly according to the wiring diagram supplied with the Product, to its electrical
characteristics and in compliance with the applicable standards particularly with reference to human safety.
1.4 - Measuring Inputs and Power Supply

Carefully check that the value of input quantities and power supply voltage are proper and within the
permissible variation limits.
1.5 - Outputs Loading

Must be compatible with their declared performance.

1.6 - Protection Earthing

When earthing is required, carefully check its effectiveness.

1.7 - Setting and Calibration

Carefully check the proper setting of the different functions according to the configuration of the protected
system, the safety regulations and the co-ordination with other equipment.
1.8 - Safety Protection

Carefully check that all safety means are correctly mounted, apply proper seals where required and
periodically check their integrity.
1.9 - Handling

Notwithstanding the highest practicable protection means used in designing electronic circuits, the electronic
components and semiconductor devices mounted on the modules can be seriously damaged by electrostatic
voltage discharge which can be experienced when handling the modules.
The damage caused by electrostatic discharge may not be immediately apparent, but the design reliability and
the long life of the product will have been reduced. The electronic circuits are completely safe from
electrostatic discharge (8 KV IEC 255.22.2) when housed in their case; withdrawing the modules without
proper cautions expose them to the risk of damage.

1.10 - Maintenance

Make reference to the instruction manual of the Manufacturer; maintenance must be carried-out by specially
trained people and in strict conformity with the safety regulations.

1.11 - Waste Disposal of Electrical & Electronic Equipment

(Applicable throughout the European Union and other European countries with separate collection program).
This product should not be treated as household waste when you wish dispose of it. Instead, it should be
handed over to an applicable collection point for the recycling of electrical and electronic equipment.
By ensuring this product is disposed of correctly, you will help prevent potential negative consequence to the
environment and human health, which could otherwise be caused by inappropriate disposal of this product.
The recycling of materials will help to conserve natural resource.
1.12 - Fault Detection and Repair

Internal calibrations and components should not be altered or replaced.

For repair please ask the Manufacturer or its authorized Dealers.

Misapplication of the above warnings and instruction relieves the Manufacturer of any liability.

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2. General

The main features of the relays are:

User friendly front face with hi-resolution graphic display (240x128), 10 programmable signal Leds, 6 push-
buttons (configurable) and four push-button for complete local managemen, USB for local communication.
Eight user programmable Output Relays.
Eight opto-isolated, self powered Digital Inputs.
Additional RS485 communication port

Input currents are supplied to 3 current transformers: measuring phase currents.

An additional internal CT directly measures the residual (Zero Sequence) current of the three inputs.
Current inputs can be 1 or 5A: selection between 1A or 5A is made by movable jumpers provided inside the
Relay.

2.1 - Power Supply

The relay can be fitted with two different types of power supply:

Type 1 24V(-20%) / 110V(+15%) a.c. 24V(-20%) / 125V(+20%) d.c.

Type 2 80V(-20%) / 220V(+15%) a.c. 90V(-20%) / 250V(+20%) d.c.

Before energizing the unit check that supply voltage is within the allowed limits.

3. Front Panel

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4. Keyboard and Display

↓ Pushbuttons Programmable

Navigation By these buttons the options showed in

menu correspondence on the display are selected.

Increase
These buttons are used to scroll the items of
the different menus (Local Control,
Measurements, Energy metering etc).
Decrease

4.1 - Display

The 240x128 pixel hi-resolution LCD display the available information (menu, etc.).

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5. Icons of Display

LocalCmd Local Commands

Measure Actual Measurements

MaxVal Maximum Values

TripRec. Trip Recording

Counter Partial Counters (Resettable Counter)

ROCnt Total Counter (Read Only Counter)

Events Event Recording

Setting Function Settings

System System Settings

InfoStatus Information Status

TimeDate Time And Date

Healthy Diagnostic Information

Dev.Info Relay Version

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6. Signalization

Eleven signal leds are provided:

1 Led Power Supply Not programmable Green

10 Leds Programmable (via software)

N° Colours
1 Green
2 Green
3 Green
4 Yellow
5 Red
6 Red
7 Red
8 Yellow
9 Red
10 Green

6.1 - Leds Manual Reset

For Leds manual reset operate as follows:

1 • Press “Menu” for 3 • Select

access to the main “LedClear”
menu with icons. • Press “Select” to
execute the
command.

2 • Select icon 4 • When command has

“LocalCmd” . been executed the
display shows
“Command Done”;
• Press “Select”,

6.2 – Display of the last trip

Beside the signalization of the led “Trip”, indicating a generic function trip, the display shows a window
indicating the latest function that was tripped and the number of events that are stored in the memory.
The display will show this window until the reset button or external reset are operated.

1 • Press “Menu” to access to the main menu with icons.

Press “Home” to erase trip visualization.
Ex. “tTCS” (flashing) is the last trip.

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7. Leds Configuration (only via software)

The relay manage up to 10 signal leds (Programmable), 1 led “Power” (green).

For Leds programming (only via software) operate as follows:

- Open the software program and connect to the relay.

- Select “Change Windows” from “Menu” button (options)

- Select “Led Setting”

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The window for leds configuration will show:

7.1 - Name

Led name – for leds position see picture

7.2 - Link enable

Linked = Enable to operate

Not Linked = Disable

7.3 - Status

Light-off = Normal condition

Light-on = When cause appear led is illuminated
See “Light Prog”
Flashing = When cause appear led is flashing

7.4 - Light Prog.

Light-on = When cause appear led is illuminated

Flashing = When cause appear led is flashing

7.5 - Funct. Mode

Volatile = When cause disappear led turn-off (Not memorized)

Latched = When cause disappear led remain illuminated (memorized)

7.6 - Functions

Select the function assigned to specific led (see table 1).

It’s possible to configure only one function for each led.
For configuration multiple functions use “UserVar” function.

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7.7 - Table 1

Tal Alarm Thermal Image T>

T> Trip
1I> Start First overcurrent element
t1I> Trip
2I> Start Second overcurrent element
t2I> Trip
3I> Start Third overcurrent element
t3I> Trip
1Io> Start First earth fault element
t1Io> Trip
2Io> Start Second earth fault element
t2Io> Trip
3Io> Start Third earth fault element
t3Io> Trip
1Is> Start
First negative sequence current element
t1Is> Trip
2Is> Start
Second negative sequence current element
t2Is> Trip
I< Start No Load Running element
tI< Trip
ILR Start Locked Rotor element
tILR Trip
IRF Start Internal Relay Failure
tIRF Trip
BF BF (Breaker Failure)
tTCS Trip coil supervision
MotOn Motor On
LimStNum Limitation Startings Number
StSeqSucc Start Sequence
Itr Switch-over current
DskClean Disk near Full clean operation is required
DskFull Disk Full Write should be lock
DskWR Disk write in progress
DskFRMT Disk Format in progress
DskCHK Check disk in progress
rDskAttach Removable disk usb attach
rDskDetach Removable disk usb detach
rDskDtchable Removable disk usb now detachable
Not used

rDskClean Removable disk usb near to full clean operation is required

rDskFull Removable disk usb full, write locked
rDskWR Removable disk usb write in progress
rDskFRMT Removable disk usb format in progress
rDskCHK Removable disk usb check in progress
manOpCmd Manual Open Command
L/Rdisc Local/Remote signal Discrepancy
CL-Cmd Close Command
C/Bfail Circuit Breaker failure
UserTriggerOscillo User Variable for Oscillographic Recording
UserVar<0>
to User Variable
UserVar<24>
Vcc “One” logic
Gnd “Zero” logic
Reset Reset signal logic
P1 Push-button 1
P2 Push-button 2
P3 Push-button 3
P4 Push-button 4
P5 Push-button 5
P6 Push-button 6
Gen.Start Start
Generic
Gen.Trip Trip
0.D1 Digital Inputs
0.D1Not
to
0.D8
0.D8Not
0.R1 Output relays
to
0.R8

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7.8 - Example: Change settings for “Led1”

Change settings for “Led1” : “Enable”, “Flashing”, “Latched”, “1I>”.

Main Windows:

7.8.1 - “Link Enable”

Select “Link enable” related to “Led 1” and press right button on mouse, select
“Value change”:

Select “Linked” and press “OK” (if Password is

request, see § Password):

7.8.2 - “Flashing”

Select “Light prog” related to Led 1 and press right button on mouse, select “Value
change”:

Select “Flashing” and press “OK” (if Password is

request, see § Password):

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7.8.3 - “Funct.Mode”

Select “Funct.Mode” related to Led 1 and press right button on mouse, select
“Value change”:

Select “Latched” and press “OK”

(if Password is request, see § Password):

7.8.4 -“Functions”

Select “Functions” related to Led 1 and press right button on mouse,

select “Value change”:

Select “1I>” and press “OK”

(if Password is request, see § Password):

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8. User Variables

The “User Variable” is a result of a logical operation (Or, AND, ecc...), it can be used like other logical output.
This operation is possible only via software.

8.1 - Name

Internal progressive name

8.2 - User Descr.

Custom identification label for user variable

8.3 - Linked functions

Selection functions

8.4 - OpLogic

Operation Logic = [None, OR, AND, XOR, NOR, NAND, NOT, Ff-SR, Counter, Rise-UP, Fall-Down]

8.5 - Timer

Time delay (0-600)s, step 0.01s

8.6 - Timer type

Delay = Add a delay on output activation. The “Timer” is edge triggered on rise edge.
Monostable P = Activated the output for the time “Timer”
Monostable N = Disactivated the output for the time "Timer".
Blinking = The output switches periodically at the frequency defined by "Timer".
Delay-Fall-Down = Delay-Fall-Down

8.7 – Extra

Extra Time (0 - 65000)s, step 1s

8.8 - Logical status

“User Variable” Logical status

8.9 - Example: Setting “User Variable”

Open software program and connect to the relay.

Select “Change Windows” from “Menu” button

Select “User Variable”

Setting for “UserVar<0>” : “Current Trip”, “1I>,2I>,3I>”, “OR”, “1”, “Monostable P”, “10”.

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8.9.1 - “User description” (User descr.)

Select “User descr” related to “UserVar<0>” and press right button on mouse,
select “Value change”:

Insert “Current Trip” into box and press

“OK”:

8.9.2 - “Linked Functions”

Select “Linked Functions” related to “UserVar<0>” and press right button on

mouse, select “Value change”:

Select “1I>, 2I>, 3I>” from “Available” box via push-button “<Add”, and press “OK”.
For remove functions, use push-button “>Remove”.

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8.9.3 - “Operation Logic” (Oplogic)

Select “Oper Logic” related to “UserVar<0>” and press right button on mouse,
select “Value change”:

Insert “OR” into box and press “OK”:

8.9.4 - “Timer”

Select “Timer” related to “UserVar<0>” and press right button on mouse, select
“Value change”:

Select “1” into box and press “OK”:

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8.9.5 - “Timer type”

Select “Timer” related to “UserVar<0>” and press right button on mouse, select
“Value change”:

Select “Monostable P” into box and

press “OK”:

8.9.6 - “Extra”

Select “Extra” related to “UserVar<0>” and press right button on mouse,

Select “10” into box and press “OK”:

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9. Local Commands

“Local Commands” allow to operate from relay front face controls like Thermal Memory reset, Leds reset, etc.

Menu Description Password

Led Clear Reset of signal Leds No
Relays Clear Manual reset of output relays No
main C/B Cl. Manual C/B closing (conditioned by Password) Yes
main C/B Op. Manual C/B opening (conditioned by Password) Yes
Event Clear Reset Events Yes
LTrip Clear Reset Last Trip Yes
Counter Clear Reset Counters Yes
HistFail Clear Reset of Internal Failure Historic records Yes
Reset StNo Reset of the Starts Number Yes
Reset Term Reset to zero of the accumulations relevant to Thermal Image and Yes
Interruption Energy (only if T> is enable)
Leds Test Signal Leds test No
Force Osc Force Oscillo Recording Yes
Format iDisk Format internal disk Yes
Check iDisk Check internal disk Yes

To operate one command by the Front Face Keyboard, proceed as follows (Led Clear in the present example).

1 • Press “Menu” for access to the main menu with icons.

2 • Select “LocalCmd” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • Select with pushbutton “Increase” or “Decrease” the menu “LedClear”.

• Press “Select” to execute the command.
(if Password is request, see § Password).

4 • When command has been executed the display shows

“Command Done”; go to “3”.

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10. Measure

Real time values as measured during the normal operation.

1 • Press “Menu” for access to the main menu with icons.

2 • Select “Measure” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • Scroll the menu “Measure” with pushbutton “Increase” or

“Decrease” to display
the measurement.
• Press “Exit” to go to the main menu.

Imx (0 ÷ 99999) A Largest of the 3 phase-currents (Ia,Ib,Ic)

Ia (0 ÷ 99999) A RMS value phase A current
Ib (0 ÷ 99999) A RMS value phase B current
Ic (0 ÷ 99999) A RMS value phase C current
Io (0 ÷ 99999) A RMS value of Zero Sequence Current
I1 (0 ÷ 99999) In Positive sequence current
I2 (0 ÷ 99999) In Negative Sequence current
Tem (0 ÷ 99999) %T Thermal status as % of the full load continuous operation temperature Tn
tst (0 ÷ 99999) s Motor starting time
Ist (0 ÷ 99999) A Max current during motor starting

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11. Maximum Values

Maximum demand values recorded starting from 100ms after closing of main Circuit Breaker (updated any time
the breaker closes).

1 • Press “Menu” for access to the main menu with icons.

2 • Select “MaxVal” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • Scroll the menu “Measure” with pushbutton “Increase” or

“Decrease” to display
the measurement.
• Press “Exit” to go to the main menu.

Imx (0 ÷ 99999) A Largest of the 3 phase-currents (Ia,Ib,Ic)

Ia (0 ÷ 99999) A RMS value phase A current
Ib (0 ÷ 99999) A RMS value phase B current
Ic (0 ÷ 99999) A RMS value phase C current
Io (0 ÷ 99999) A RMS value of Zero Sequence Current
I1 (0 ÷ 99999) In Positive sequence current
I2 (0 ÷ 99999) In Negative Sequence current
Tem (0 ÷ 99999) %T Thermal status as % of the full load continuous operation temperature Tn

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12. Trip Recording

Display of the function which caused the tripping of the relay plus values of the measurement at the moment of
tripping. The last 30 events are recorded.
The memory buffer is refreshed at each new relay tripping (FIFO logic).

Display → Reading of recorded Trips.

Erase → Clear all Trips recorded.

1 • Press “Menu” for access to the main menu with icons.

2 • Select “TripRec.” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • Select “Display” with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

• For “Erase” go to “8”

4 • If no trip is recorded the display shows “No Trips”.

5 • If any trip was recorded, select “View” to display the chronological list of the
records.
• By the keys “Increase” or “Decrease” select the date of the record to be
checked.

6 • Will be shown:
“Descr” the function that caused the event (Example: t1I> = Rise)
“Edge” if the function was tripped (Rise) or reset (Fall)
“Date”, date of trip, year/month/day, hour:minutes:seconds:milliseconds
• Press “Value”, for reading the value of input quantities on tripping.

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7 • Scroll with pushbuttons “Increase” or “Decrease” the available

measurements.
• Select “Exit” to go back to “5” for another selection, or “2” go back to the
main menu.

8 • Select “Erase” with button “Decrease”.

• Press “Select” to execute the commands; All Trips recorded are erased.
(if Password is request, see § Password).

9 • When command has been executed the display shows “Command Done”;
• Press “Exit” to go back to the main menu.

Imx (0 ÷ 99999) A Largest of the 3 phase-currents (Ia,Ib,Ic)

Ia (0 ÷ 99999) A RMS value phase A current
Ib (0 ÷ 99999) A RMS value phase B current
Ic (0 ÷ 99999) A RMS value phase C current
Io (0 ÷ 99999) A RMS value of Zero Sequence Current (RMS Secondary Amps)
I2 (0 ÷ 99999) In Negative Sequence current
Tem (0 ÷ 99999) %T Thermal status as % of the full load continuous operation temperature Tn

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13. Partial Counters

Partial counters of the number of operations for each of the relay functions.

Display → T> 0 Operations counters Thermal Image

1I> 0 Operations counters First overcurrent element
2I> 0 Operations counters Second overcurrent element
3I> 0 Operations counters Third overcurrent element
1Io> 0 Operations counters First earth fault element
2Io> 0 Operations counters Second earth fault element
3Io> 0 Operations counters Third earth fault element
1Is> 0 Operations counters First negative sequence current element
2Is> 0 Operations counters Second negative sequence current element
motST 0 Operations counters Motor Start
mStOV 0 Operations counters Motor Start Overall counter
LR 0 Operations counters Locked Rotor trip
StNo 0 Operations counters Start number limitation trip
StSeq 0 Operations counters Start Sequence trip
I< 0 Operations counters No Load running trip
TCS 0 Operations counters Trip Circuit Supervision
IRF 0 Operations counters Internal Relay Fault
BrkF 0 Operations counters Breaker failure
AutOp 0 Operations counters Automatic C/B Opening
AutCL 0 Operations counters Automatic C/B Closing
ManOp 0 Operations counters Manual C/B Opening
ManCL 0 Operations counters Manual C/B Closing
OvrOp 0 Operations counters Overall C/B Opening (Automatic + Manual)
OvrCL 0 Operations counters Overall C/B Closing (Automatic + Manual)

Erase → Reset all Counters

(By the interface program software it is possible to individually reset the counters
and set an initial starting number)

1 • Press “Menu” for access to the main menu with icons.

2 • Select “Counter” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • Select “Display” with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

• For “Erase” to go to “5”

4 • Display of the number of operations of each individual function.

• With pushbuttons “Increase” or “Decrease” scroll the parameters
• Press “Exit” go back to “3”.

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5 • Select “Erase” with pushbutton “Decrease”.

• Press “Select” .
(if Password is request, see § Password).

6 • When command has been executed the display shows “Command Done”;
and return to “5”.
• With pushbutton “Exit” to go back to the main menu.

14. Total Counters

Counters of the total number of operation of each individual function.
These counters cannot be reset

Display → T> 0 Operations counters Thermal Image

1I> 0 Operations counters First overcurrent element
2I> 0 Operations counters Second overcurrent element
3I> 0 Operations counters Third overcurrent element
1Io> 0 Operations counters First earth fault element
2Io> 0 Operations counters Second earth fault element
3Io> 0 Operations counters Third earth fault element
1Is> 0 Operations counters First negative sequence current element
2Is> 0 Operations counters Second negative sequence current element
motST 0 Operations counters Motor Start
mStOV 0 Operations counters Motor Start Overall counter
LR 0 Operations counters Locked Rotor trip
StNo 0 Operations counters Start number limitation trip
StSeq 0 Operations counters Start Sequence trip
I< 0 Operations counters No Load running trip
TCS 0 Operations counters Trip Circuit Supervision
IRF 0 Operations counters Internal Relay Fault
BrkF 0 Operations counters Breaker failure
AutOp 0 Operations counters Automatic C/B Opening
AutCL 0 Operations counters Automatic C/B Closing
ManOp 0 Operations counters Manual C/B Opening
ManCL 0 Operations counters Manual C/B Closing
OvrOp 0 Operations counters Overall C/B Opening (Automatic + Manual)
OvrCL 0 Operations counters Overall C/B Closing (Automatic + Manual)

1 • Press “Menu” for access to the main menu with icons.

2 • Select “ROCnt” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • With pushbuttons “Increase” or “Decrease” scroll the parameters.

• With pushbutton “Exit” to go back to the main menu.

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15. Events

Display of the function which caused any of the following events: - Status change of digital Inputs/Outputs. -
Start of protection functions – Trip of protection function – Function reset.
The last 500 events are recorded at pick-up (rise) or drop-out (fall).
The memory buffer is updated at each new event.

Display → Reading events recorded.

Erase → Clear all events recorded.

1 • Press “Menu” for access to the main menu with icons.

2 • Select “Events” icon with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

3 • Select “Display” with pushbutton “Increase” or “Decrease”.

• Press “Select” for access.

• For “Erase” go to “7”

4 • If no event is recorded the display shows message “No Events”.

5 • If any event was recorded, select “View” to display the chronological list of
the records.
• By the keys “Increase” or “Decrease” select the date of the record to be
checked.

6 • Will be shown:
“Descr” the function that caused the event
(Example: 1I> = Start, t1I> = Trip)
“Edge” if the function was tripped (Rise) or reset (Fall)
“Date”, date of trip, year/month/day, hour:minutes:seconds:milliseconds

7 • Select “Erase” with button “Decrease”.

• Press “Select” to execute the commands; All Events recorded are erased.
(if Password is request, see § Password).

8 • When command has been execute the display shows “Command Done”;
• Press “Exit” to go back to the main menu.

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15.1 – Events on display

Functions Events Events Description Status

Displayed
Tal Tal Alarm Rise
T> Thermal Image
T> T> Trip Rise Fall
1I> 1I> Start Rise
1I> Fist overcurrent element
t1I> t1I> Trip Rise Fall
2I> 2I> Start Rise
2I> Second overcurrent element
t2I> t2I> Trip Rise Fall
3I> 3I> Start Rise
3I> Third overcurrent element
t3I> t3I> Trip Rise Fall
1Io> 1Io> Start Rise
1Io> Fist earth fault element
t1Io> t1Io> Trip Rise Fall
2Io> 2Io> Start Rise
2Io> Second earth fault element
t2Io> t2Io> Trip Rise Fall
3Io> 3Io> Start Rise
3Io> Third earth fault element
t3Io> t3Io> Trip Rise Fall
1Is> 1Is> Start Rise
1Is> First negative sequence current
t1Is> t1Is> Trip Rise Fall
2Is> 2Is> Start Rise
2Is> Second negative sequence current
t2Is> t2Is> Trip Rise Fall
TCS TCS Start Rise
TCS Trip Coil Supervision
tTCS tTCS Trip Rise Fall
IRF IRF Start Rise
IRF Internal Relay Failure
tIRF tIRF Trip Rise
BF BF BF Trip Breacker Failure Rise Fall
ILR ILR Start Start Locked rotor Rise
LR
tILR tILR Trip Trip Locked rotor Rise
StNo LimStNum Trip Limitation of start number Rise
StSeqSucc Start Start sequence successful Rise
StSeq
Itr Start Start sequence trip/switch over failure Rise
I< Start Start No load running protection Rise Fall
I<
tI< Trip Trip No load running protection Rise Fall
MotON Trip Motor On Rise Fall
Time Sincro Trip Time Sincronization Rise
DskClean Disk near to full clean operation is required Rise
DskFull Disk full write should be lock Rise
DskFRMT Disk format in progress Rise Fall
rDskAttach Not Used removable disk usb attach Rise
Disk
rDskDetach Not Used removable disk usb detach Rise
rDskDtchable Not Used removable disk usb now detachable Rise
rDskClean Not Used Removable USB disk near to full clean oper. is required Rise
rDskFull Not Used Removable disk USB full, write locked Rise
L/R disc Local/Remote signal Discrepancy Rise
manOpKey Circuit Breaker intentional open by key Rise
manOpLocC Circuit Breaker intentional open by local command Rise
manOpRemC Circuit Breaker intentional open by remote command Rise
manOpExtIn Circuit Breaker intentional open by external input Rise
ExterManOp Circuit Breaker intentional external open Rise
C/B manClKey Circuit Breaker intentional close by key Rise
manClLocC Circuit Breaker intentional close by local command Rise
manClRemC Circuit Breaker intentional close by remote command Rise
manClExtIn Circuit Breaker intentional close by external input Rise
ExterManCh Circuit Breaker intentional external close Rise
CB-Fail Circuit Breaker (C/B Failure) Rise Fall
Gen.Trip General Trip Rise
Gen.Start General Start Rise
0.D1 Digital Input D1 Rise Fall
Digital
to Rise Fall
Inputs
0.D8 Digital Input D8 Rise Fall
0.R1 Output relays R1 Rise Fall
Output
to Rise Fall
Relays
0.R8 Output relays R8 Rise Fall

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16. System (System parameters)

Setting of system parameters.

CTs&PTs Phase CT Primary Prim. → 1000 A (1 ÷ 9999) step 1 A
Secondary Sec. → 1 A (1 / 5)
Neutral CT Primary Prim. → 1000 A (1 ÷ 9999) step 1 A
Secondary Sec. → 1 A (1 / 5)

Sys.Ratings Fn → 50 Hz (50 / 60)

Nominal Frequency
In → 100 A (1 ÷ 9999) step 1 A
Nominal Current

Setting Group Group → 1 (1 / 2)

1 • Press “Menu” for access to the main menu with icons.

2 • Select “System” icon with pushbuttons “Increase” or “Decrease”.

• Press “Select” for access.

3 • Select “CTs&PTs”.
• Press “Select” for access.

4 • Select “Phase CT”.

• Press “Select” for access.

5 • Select “Primary” to modify the value, or press “Decrease”

• Press “Modify” to modify the parameter.
(if Password is request, see § Password).

6
• Appear icon.
• Use pushbuttons “Increase” or “Decrease” to set the value.
• Press “Write” to confirm the value

7 • The value is now set.

• To set a new value return to the point “4”.
• Press “Exit”.

8 • The display show “Confirm the change?”.

• Choose “Yes ” to confirm the changes.
• Choose “No ” to not confirm the changes.
• After set confirmation (or non-confirmation) the display goes back to
point “3”.

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17. Settings

Two complete banks of settings of the programmable variables are available in the “SETTING” menu.
Both “Group #1” and “Group #2” include the hereunder listed variables.

1 Indicates the Setting Group that is actually being modified.

This symbol indicates that the function aside is enabled; symbol missing
indicates that the function is disabled.

Group#1 Group#2 Descriptions

Communic. Communic. Serial communication parameters
Customise Customise Visualization parameters
FileSys FileSys File Systems and disks management
T> T> Thermal Image
1I> 1I> First Overcurrent Element
2I> 2I> Second Overcurrent Element
3I> 3I> Third Overcurrent Element
1Io> 1Io> First Earth Fault Element
2Io> 2Io> Second Earth Fault Element
3Io> 3Io> Third Earth Fault Element
1Is> 1Is> First Negative Sequence Current Element
2Is> 2Is> Second Negative Sequence Current Element
MotSt MotSt Motor Start
LR LR Locked rotor protection
StNo StNo StartNumber limitation tripping
StSeq StSeq Starting sequence Control
I< I< No Load running protection
TCS TCS Setting variables for Trip Circuit Supervision
IRF IRF Internal Relay Fault
BrkFail BrkFail Setting variables for Breaker Failure detection
Oscillo Oscillo Setting variables for Oscillographic recording
CB-Mngn CB-Mngn C/B command Local / Remote setting
ExtReset ExtReset Configuration for external reset input

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17.1 - Modifying the setting of variables

To modify any variable setting by the keyboard proceed as follows:

(example: change setting of element “1I>”, from “Is 1.000 In” to “Is 3.500 In”)

1 • Press “Menu” for 7 •

access to the main Appear icon.
menu with icons.

2 • Select icon “Setting” 8 • Set new values

by pushbuttons pushbuttons
“Increase” or “Increase” or
“Decrease”. “Decrease” buttons
• Press “Select”. • Press “Write”.

3 • Select by pushbuttons 9 • If the change of

“Group#1” parameters is
completed, press
• Press “Select”. “Exit”.

4 • Select by pushbuttons 1 • “Yes” confirm all

“Increase” or 0 changes.
“Decrease” the
parameter “1I>”.
• Press “Select”. • “No” voids all the
changes.

5 • Select by buttons 1 • The relay returns to

“Increase” or 1 point “4”.
“Decrease” the menu
“Oper.Levels”.
• Press “Select”.

6 • The arrow aside “Is”

shows the parameter
selected for changing
• Press “Modify”.
• If Password is request,
see § Password

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17.2 - Password

The password is requested any time the user wishes to modify any password protected parameter
(example “1I>” menu “Setting”).

The factory default password is “1111”.

The password is only modifiable with the software.

When password is requested, proceed as follows:

1 Use the key “Increase” and 5 Use the key “Increase” or

“Decrease” and set the “Decrease” to set the
first digit of password. third digit.

2 Press “Next” 6 Press “Next”

to validate and go to the to validate and go to the
next digit. next digit.

3 Use the key “Increase” or 7 Use the key “Increase” or

“Decrease” to set second “Decrease” to set the
digit. fourth digit.

4 Press “Next” 8 Press “Next”

to validate and go to the to validate and go to
next digit. modify the next
parameter.

By key “Prev” go back to previous digit.

The password validity expires 60 sec after the last

setting modification or as soon as you go back to the
main menu

1 If set the incorrect password 2 The display will repeat the

the display shows initial interrogation
“Wrong code”.

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17.3 – Menu: Communic. (Communication)

Options → BRRem 19200 [9600 / 19200 / 38400]

→ PRRem MODBUS [MODBUS / IEC103]

Node Address → Addr. 1 [1 ÷ 250]

17.3.1 – Description of variables

BRRem : USB (Front Panel) serial communication speed

PRRem : Remote Protocol
Addr. : Identification number for the connection on serial communication bus

17.3.2 – Front Panel USB serial communication port (RS232)

A Mini-USB socket is available on Relay’s front face for connection.

Through this port - and by the interface program for Windows XP Pro (SP3)/7/10 – it is possible connect a
Personal Computer to download all available information, operate any control and program the relay; the
protocol used is “Modbus RTU”.

17.3.3 – Cable for connection from Relay to Personal Computer

The connection cable is a standard

USB-A/mini USB-B

17.3.4 – Main serial communication port (RS485)

From the Relay’s back terminal board, a RS485 ports is available for communication with SCADA system
with Protocol Modbus RTU or IEC60870-5-103 (selectable).
The communication interface allows to program all settings, operate all commands and download all
information and records.
The physical connection can be via a normal pair of wires (RS485).

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17.4 - Menu: Customize (Human Machine Interface)

Options → Lang English [English / Loc.Lang]

→ Light On [Auto / On]

Timers → tBckL 20 s (5 ÷ 120) step 1 s

17.4.1 – Description of variables

Lang : Set Language

Light : Set Display backlight
tBckL : Set Display backlight time

This menu allows to customize the Language and the Display.

The Display backlight can be programmed always on “ON” or switched-on “Automatically” for a few second
(set parameter “tBckL”) at any operation of the keyboard.

Example: set Local Language.

1 • Press “Menu” for 5 • Select “Loc.Lang”.

access to the main
menu with icons. • Press “Write”
• If Password is
requested, see §
Password

2 • Select icon “Setting” 6 • Press “Exit”

by pushbuttons
“Increase” or
“Decrease”.
• Press “Select”.

3 • Select “Group 1” or 7 • “Yes” confirms all

“Group 2” changes.
• Select “Customize”
• Select “Options”. • “No” void all
• Press “Select”. changes.

4 • Select “Lang” 8 • After set confirmation

the display shows
“Please Wait”
• Press “Modify”.

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17.5 - Function: FileSys (File system and Disk management)

Options → log disable [disable / int.disk]

→ OniDF StopWrite [StopWrite / DelOldFiles]

17.5.1 - Description of variables

log : Internal Disk write

Enable : Protection log file write enabled
Disable : Protection log file write disabled
OniDF : Write policy on internal full disk condition
StopWrite : Write disable
DelOldFiles : Delete older folder and write

17.5.2 – Download file informations

Files related to "Journal" - "Fault log" - "Oscillo" are available in the relay internal memory.

Connect the USB cable to the relay and wait a few moments.

Through the "Computer " icon on your desktop to access disk management, select the relay hard drive
on recording equipment " ".

17.5.2.1 – Journal file

Example:

Directory Descriptions
DATALOG 2018 Year
Jul Month
08 Day
Jrnl_08.07.2018.txt Journal File

Jrnl_08.07.2018.txt
Date Time Event
2018/07/03 18:42:07:100 Vcc Rise
2018/07/03 18:42:07:100 L/Rdisc Rise
2018/07/03 18:42:07:110 IPU boot Rise

17.5.2.2 – Faults log file

Example:

Directory Descriptions
TRIPS 2018 Year
Jul Month
15 Day
Trips_15.06.2018.txt Trips log File

Trips_15.06.2018.txt
Date Time Event Values
2018/06/15 08:17:27:200 tTCS Imx=0.0; Ia=0.0; Ib=0.0; Ic=0.0; Io=0.0; I2=0.00; Tem=0
2018/06/15 10:31:03:901 tTCS Imx=0.0; Ia=0.0; Ib=0.0; Ic=0.0; Io=0.0; I2=0.00; Tem=0

17.5.2.3 – Oscillographic file

Example:

Directory Descriptions
OSCILLO 2018 Year
Jul Month
18 Day
fault1_2016.05.08.15.56.45.cfg Oscillographic Comtrade
fault1_2016.05.08.15.56.45.dat File

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17.6 - Function: T> (Thermal Image F49)

Status → Enab. No [No / Yes]

Options → OPMOD I1.I2 [I1.I2 / I.Max]

Livelli → Tal 50 %Tb [10 ÷ 100] step 1 %Tb

→ Is 1 In [0.5 ÷ 1.5] step 0.01 In
→ Tres 50 %Tb [10 ÷ 100] step 1 %Tb
→ To 1 nkt [1 ÷ 10] step 1 nkt

17.6.1 - Description of variables

Abil. : Function enabling (No = Disable / Yes = Enable)

OPMOD : I1.I2 = Direct/Inverse current
I.Max = Phase current
Tal : Temperature pre-alarm level
Is : Continuous admissible current
Tres : Temperature reset
To : Warming-up Time Constant of the load

17.6.2 - Trip and Alarm

The algorithm compares the amount of heat accumulated “T” (≡ i2•t) to the steady state amount of heat “Ts”
corresponding to continuous operation at the continuously admissible current “Is”.
When the ratio “T/Ts” reaches the level set for Thermal Alarm “Tal” of the max allowed heating, the relay
trips accordingly

17.6.2.1 – Trip time of the Thermal Image Element

The trip time of the Thermal Image Element is a function of the current “I” flowing into the load and
depends on its warming-up Time Constant “Kt”, on the previous thermal status “Ip” and on the maximum
admissible continuous current “Is” according to the equation:

t = Time to relay tripping

Kt = Load thermal time constant 2 2
I = Actual load current  I   Ip 
  − 
In In
t = Kt ⋅  n   2   2
In = Load rated current
Is = Continuous admissible current
Ip = Steady state current before the overload  I   Is 
  − 
n = Natural Logarithm  In   In 

When the heating exceeds the set alarm level “Tal” or the max. allowed level (“I” > “Is” for the time “t”)
the output relays programmed for these function will be operated. Reset will take place when the thermal
status will drop below 95% of the trip level.

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17.6.2.2 – Thermal Image Curves (TU1024 Rev.1)

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17.7 - Function: 1I> (First Overcurrent Element F50/51)

Status → Enab. No [No / Yes]

Options → f(t) Type - D [D / A / B / C / I / VI / EI / MI / SI ]

→ tBI Off [Off / 2tBO]

Oper. Levels → Is 1 In (0.1 ÷ 4) step 0.01 In

Timers → ts 100 s (0.02 ÷ 100) step 0.01 s

→ tBO 0.75 s (0.05 ÷ 0.75) step 0.01 s

17.7.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

f(t) : Operation characteristic (Time/Current curve):
(D) = Independent definite time
(A) = IEC Inverse Curve type A
(B) = IEC Very Inverse Curve type B
(C) = IEC Extremely Inverse Curve type C
(I) = IEEE Inverse Curve
(VI) = IEEE Very Inverse Curve
(EI) = IEEE Extremely Inverse Curve
(MI) = IEEE Moderate Inverse Curve
(SI) = IEEE Short Inverse Curve
tBI : Blocking input reset time
Off = Permanent block
2tBO = Set 2xtBO.
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO”
is also the trip time delay of the Breaker Failure function.

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17.7.2 – Blocking Logic (BO-BI)

For each Protection Function it is possible to activate a Blocking Logic allowing for inhibiting their operation
by external signals supplied to the Digital Input.

17.7.2.1 – Output Blocking signal “BO”

All the protection functions that can be programmed to operate in the blocking logic mode, element, have
an instantaneous element (beside the time delayed) which is operated as soon as the controlled quantity
exceeds the set trip level (I > [Is] for current, etc..) and is instantaneously reset when the input quantity
drops below the reset level (normally 0.95Is).
The instantaneous element can control one of the user programmable output relays that, by its contacts,
makes the signal available for blocking an external element (BO = Blocking Output).
In case, “tBO” sec after the set trip time “ts” has expired, the Protection function is still in operation
(current above trip level), the Blocking Output relay (instantaneous element) is anyhow reset to
eventually remove the Blocking signal from a back-up protection.

17.7.2.2 – Blocking Input “BI”

For all the functions controllable by the Blocking Logic, it is possible to inhibit the time delayed tripping
by an external signal that activates a Digital Input programmed for this functionality.
The programmed Digital Input gets activated by an external cold contact closing across its terminals.
With the variable “tBI” set to “OFF” (tBI=OFF), the tripping of the delayed function is blocked as long as
the Blocking Input signal is present at the terminals of the Digital Input.
With the variable “tBI” set to “2xtBI” (tBI=2xtBI), 2xtBI seconds after the set trip time delay of the
function has expired the blocking input is anyhow ignored and the function enabled to trip.

17.7.3 - Automatic doubling of Overcurrent thresholds on current inrush

For some of the phase Overcurrent functions it is possible to have the set trip level [Is] automatically
doubled when strong inrush current is detected.
If at circuit Breaker switch-on (i.e. when the input current rises from zero to a minimum measurable value)
the current increases from 0 to 1.5 times the rated value [In] in less than 60ms, the set minimum pick-up
level [Is] is dynamically doubled ([Is]→[2Is]) and keeps this value until the input current drops below
1.25xIn or the set time [t2xI] has elapsed.
This functionality is very useful to avoid spurious tripping of the instantaneous, or short-time delayed
Overcurrent elements, that could be experienced at switch-on when energizing the feeder.

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17.8 – Function: 2I> (Second Overcurrent Element F50/51)

Status → Enab. Yes [No / Yes]

Options → tBI Off [Off / 2tBO]

→ 2xI Disable [Disable / Enable]

Oper. Levels → Is 1 In (0.1 ÷ 40) step 0.01 In

Timers → ts 100 s (0.02 ÷ 100) step 0.01 s

→ tBO 0.75 s (0.05 ÷ 0.75) step 0.01 s
→ t2xI 2 s (0.02 ÷ 100) step 0.01 s

17.8.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tBI : Blocking input reset time
Off = Permanent block
2tBO = Set 2xtBO.
2xI : Automatic doubling of trip level on inrush
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO” is
also the trip time delay of the Breaker Failure function.
t2xI : Maximum time of automatic threshold doubling on inrush

17.9 - Function: 3I> (Third Overcurrent Element F50/51)

Status → Enab. Yes [No / Yes]

Options → tBI Off [Off / 2tBO]

→ 2xI Disable [Disable / Enable]

Oper. Levels → Is 1 In (0.1÷40) step 0.01 In

Timers → ts 5 s (0.02÷100) step 0.01 s

→ tBO 0.75 s (0.05÷0.75) step 0.01 s
→ t2xI 2 s (0.02÷100) step 0.01 s

17.9.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tBI : Blocking input reset time
Off = Permanent block
2tBO = Set 2xtBO.
2xI : Automatic doubling of trip level on inrush
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO” is
also the trip time delay of the Breaker Failure function.
t2xI : Maximum time of automatic threshold doubling on inrush

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17.10 - Function: 1Io> (First Earth Fault Element 50N/51N)

Status → Enab. Yes [No / Yes]

Options → f(t) Type - D [D / A / B / C / I / VI / EI / MI / SI]

→ tBI Off [Off / 2tBO]

Oper.Levels → Is 0.01 On (0.01 ÷ 4) step 0.01 On

Timers → ts 100 s (0.02 ÷ 100) step 0.01 s

→ tBO 0.75 s (0.05 ÷ 0.75) step 0.01 s

On = Rated primary current of CTs or of the current Tore CT.

17.10.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

f(t) : Operation characteristic (Time/Current curve):
(D) = Independent definite time
(A) = IEC Inverse Curve type A
(B) = IEC Very Inverse Curve type B
(C) = IEC Extremely Inverse Curve type C
(I) = IEEE Inverse Curve
(VI) = IEEE Very Inverse Curve
(EI) = IEEE Extremely Inverse Curve
(MI) = IEEE Moderate Inverse Curve
(SI) = IEEE Short Inverse Curve
tBI : Blocking Input reset time
Off = Permanent block
2tBO = Set 2xtBO.
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO” is
also the trip time delay of the Breaker Failure function.

17.11 - Function: 2Io> (Second Earth Fault Element 50N/51N)

Status → Enab. Yes [No / Yes]

Options → tBI Off [Off / 2tBO]

Oper.Levels → Is 0.01 On (0.01 ÷ 9.99) step 0.01 On

Timers → ts 100 s (0.02 ÷ 100) step 0.01 s

→ tBO 0.75 s (0.05 ÷ 0.75) step 0.01 s

On = Rated primary current of CTs or of the current Tore CT.

17.11.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tBI : Blocking Input reset time
Off = Permanent block
2tBO = Set 2xtBO.
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO” is
also the trip time delay of the Breaker Failure function.

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17.12 - Function: 3Io> (Third Earth Fault Element 50N/51N)

Status → Enab. Yes [No / Yes]

Options → tBI Off [Off / 2tBO]

Oper.Levels → Is 0.01 On (0.01÷9.99) step 0.01 On

Timers → ts 100 s (0.02÷100) step 0.01 s

→ tBO 0.75 s (0.05÷0.75) step 0.01 s

On = Rated primary current of CTs or of the current Tore CT.

17.12.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tBI : Blocking Input reset time
Off = Permanent block
2tBO = Set 2xtBO.
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO” is
also the trip time delay of the Breaker Failure function.

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17.13 - Function: 1Is> (First Negative Sequence Element F46)

Status → Enab. Yes [No / Yes]

Options → t(t) Type-D [D / A / B / C / I / VI / EI / MI / SI]

→ tBI Off [Off / 2tBO]

Oper.Levels → Is 4 In (0.1 ÷ 4) step 0.01 In

Timers → ts 100 s (0.02 ÷ 100) step 0.01 s

→ tBO 0.75 s (0.05 ÷ 0.75) step 0.01 s

17.13.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

f(t) : Operation characteristic (Time/Current curve):
(D) = Independent definite time
(A) = IEC Inverse Curve type A
(B) = IEC Very Inverse Curve type B
(C) = IEC Extremely Inverse Curve type C
(I) = IEEE Inverse Curve
(VI) = IEEE Very Inverse Curve
(EI) = IEEE Extremely Inverse Curve
(MI) = IEEE Moderate Inverse Curve
(SI) = IEEE Short Inverse Curve
tBI : Blocking Input reset time
Off = Permanent block
2tBO = Set 2xtBO.
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO”
is also the trip time delay of the Breaker Failure function.

17.13.2 – Time/Current operation of the first Current Unbalance element “f(t)”

The relay measures the Negative Sequence component “I2” of the input current.
The Time/Current curves can be selected by programming the variable “f(t)”:

f(t) = D Independent definite time operation.

f(t) = I, VI, EI, MI, SI, A, B, C Dependent Inverse time operation

17.14 - Function:2Is> (Second Negative Sequence Element F46)

Status → Enab. Yes [No / Yes]

Options → tBI Off [Off / 2tBO]

Oper.Levels → Is 4 In (0.1 ÷ 4) step 0.01 In

Timers → ts 100 s (0.02 ÷ 100) step 0.01 s

→ tBO 0.75 s (0.05 ÷ 0.75) step 0.01 s

17.14.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tBI : Blocking Input reset time
Off = Permanent block
2tBO = Set 2xtBO.
Is : Minimum operation level
ts : Trip time delay
tBO : Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO”
is also the trip time delay of the Breaker Failure function.

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17.15 - Function: MotSt (Motor Start)

Oper.Levels → Im 0.1 In (0.05 ÷ 1) step 0.01 In

Timers → tfst 0.1 s (0.02 ÷ 1) step 0.01 s

→ tst 120 s (10 ÷ 120) step 0.01 s

17.15.1 - Description of variables

Im : Minimum operation level

tfst : Motor start filter time
tst : Motor starting time; 2xtst Inhibition time of the locked rotor function

17.16 - Function: LR (Locked Rotor – Rotor jam)

Status → Enab. Yes [No / Yes]

Oper.Levels → ILR 1 In (1 ÷ 5) step 0.01 In

Timers → tLR 120 s (1 ÷ 120) step 0.01 s

17.16.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

ILR : Minimum operation level
tLR : Trip time delay

17.17 - Function: StNo (Limitation Start Number)

Status → Enab. Yes [No / Yes]

Oper.Levels → StNo 10 In (1 ÷ 60) step 1

Timers → tstNo 600 s (60 ÷ 3600) step 60 s

→ tBst 600 s (60 ÷ 3600) step 60 s

17.17.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

StNo : Maximum number of starting allowed within te time tStNo
tstNo : Time in to which the StNo is counted
tBst : Restart inhibition time after tripping StNo

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17.18 - Function: StSeq (starting Sequence Control)

Status → Enab. Yes [No / Yes]

Oper.Levels → ITr 10 In (0.1 ÷ 1) step 0.1 In

Timers → tTr 20 s (0.5 ÷ 50) step 0.1 s

17.18.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

Itr : Switch-over current of motor starter
tstNo : Trip time delay of LR during run

17.18.2 - Operation

During start-up of the motor, the unit can control an output relay used to operate the switch-over of motor
starter (star-delta, resistance or impedance, autotransformer, etc...) thus allowing to automatically manage
the starting transition by controlling the parameters “ITr”, “tTr”.

At motor start counting of “tTr” begins. If during “tTr” the motor current drops below “lTr”, switching-over is
operated; if motor current stays above “lTr” longer than “tTr”, the Locked Rotor element is activated.

17.19 - Function: I< (No load running)

Status → Enab. No [No / Yes]

Oper.Levels → I< 0.5 In (0.15 ÷ 1) step 0.01 In

Timers → tI< 30 s (0.1 ÷ 90) step 0.01 s

17.19.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

I< : Operation level
tI< : Trip time delay

17.19.2 - Operation

This function performs the protection against no-load running: it is activated by motor under current.

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17.20 - Function: TCS (Trip Circuit Supervision)

Status → Enab. No [No / Yes]

Timers → ts 0.1 s (0.1 ÷ 100) step 0.01 s

18.20.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

ts : Trip time delay

17.20.2 - Operation

The relay includes a complete Circuit Breaker Trip Circuit Supervision unit that is associated to the Contact
“9-10” of the “R1” Output Relay.
The contact of “R1” is used to trip the C/B as reported in the drawing here below.
The supervision works when the C/B is closed and recognizes the Trip Circuit as sound as far as the current
flowing exceeds “1mA”.
In case of Trip Circuit Fault detection, the diagnostic relay is operated and the Led starts flashing (see §
Signalization).
To have Supervision also with the C/B open one N/C contact (52b) from the C/B and an external resistor
“R” are needed.

V
R[kΩ] ≤ − R52 where R52= Trip Coil internal resistance [kΩ]
1mA
V = Trip Circuit Voltage
2
V
PR ≥ 2 ⋅ [W ] Designed power of external resistance “R”
R

Tripping of the function operates a user programmable output relay.

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17.21 - Function: IRF (Internal Relay Fault)

In this menu it is possible to configurate the operation of the Relay Internal Fault detection element

Status → Enab. No [No / Yes]

Timers → tIRF 5 s (5 ÷ 200) step 0.01 s

17.21.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tIRF : Trip time delay

17.21.2 - Operation

Tripping of the function operates a user programmable output relay.

17.22 - Function: BrkFail (Breaker Failure)

Status → Enab. No [No / Yes]

Timers → tBF 0.75 s (0.05 ÷ 0.75) step 0.01 s

17.22.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

tBF : Trip time delay

17.22.2 - Operation

The Breaker Failure detection is started by the operation of the output relay “R1”, (programmed to be
controlled by the Protection Functions that trip the C/B).
If after [tBF] seconds from operation of the relay “R1”, any input current flow is still detected (>10% In),
the function “BF” trips and operate one user programmable output relay,

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17.23 - Function: Oscillo (Oscillographic Recording)

Status → Enab. No [No / Yes]

Options → Trig Trip [Start / Trip / OnCmd / REUserLg / FEUserLg]

Timers → tPre 0.5 s (0.01 ÷ 2) step 0.01 s

→ tPost 0.5 s (0.01 ÷ 8) step 0.01 s

17.23.1 - Description of variables

Enab. : Function enabling (No = Disable / Yes = Enable)

Trig : Selection of the Trigger command source (start recording):
Start = Trigger on time start of protection functions
Trip = Trigger on trip (time delay end) of protection functions
OnCmd = On Asynchronous Force trigger command
REUserLg = On rising edge of “User Logic” (see § “User Trigger Oscillo”)
FEUserLg = On falling edge of “User Logic”
tPre : Recording time before Trigger
tPost : Recording time after Trigger

17.23.2 - Operation

In the options: “Trig = Start” and “Trig = Trip”, the oscillographic recording starts respectively when any
protection function starts operating or trip.

The “Oscillo” Function includes the oscillographic recorder of input quantities able to store up to 10 seconds
for each record.
The number of events recorded depends on the duration of each individual recording (tPre + tPost).
In any case the number of event stored can not exceed 40 (40 x 1 sec).
Any new event exciting the memory capability, cancels and overwrites the former records.

Example:

tPre = 0.5s
= 1s → 40 Oscillographic recording
tPost = 0.5s
tPre = 2s
= 10s → 4 Oscillographic recording
tPost = 8s

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17.23.3 – Available on software

DskClean Disk near Full clean operation is required
Internal

DskFull Disk Full Write should be lock

Disk

DskWR Disk write in progress

DskFRMT Disk Format in progress
DskCHK Check disk in progress
rDskAttach Removable disk usb attach
Removable Disk

rDskDetach Removable disk usb detach

rDskDtchable Removable disk usb now detachable
rDskClean Removable disk usb near to full clean operation is required
rDskFull Removable disk usb full, write locked
rDskWR Removable disk usb write in progress
rDskFRMT Removable disk usb format in progress
rDskCHK Removable disk usb check in progress
Tal Alarm
T> Thermal Image T>
T> Trip
1I> Start
1I> First overcurrent element F50-51
t1I> Trip
2I> Start
2I> Second overcurrent element F50-51
t2I> Trip
3I> Start
3I> Third overcurrent element F50-51
t3I> Trip
1Io> Start
1Io> First earth fault element F50N-51N
t1Io> Trip
2Io> Start
2Io> Second earth fault element F50N-51N
t2Io> Trip
3Io> Start
3Io> Third earth fault element F50N-51N
t3Io> Trip
1Is> Start
1Is> First negative sequence current element F46
t1Is> Trip
2Is> Start
2Is> Second negative sequence current element F46
t2Is> Trip
Mot On Motor Start
ILR Start Start Locked rotor
LR
tILR Trip Trip Locked rotor
LimStNum Trip Limitation of start number
StSeqSucc Start Start sequence successful
Itr Itr Trip Switch-over current
I< Trip
I< No Load Running protection
tI< Start
BF BF Trip Breaker Failure
TCS Start
TCS trip coil supervision
tTCS Trip
IRF Start
IRF Internal Relay Failure
tIRF Trip
manOpCmd Manual Open Command
CL-Cmd Close Command
C/B
C/Bfail Circuit Breaker failure
L/Rdisc Local/Remote signal Discrepancy
Gen.Start Start Generic
Gen.Trip Trip Generic
OscilloTriggerLogic User Variable for Oscillographic Recording
UserVar<0>
to User Variable
UserVar<24>
Vcc Reserved
Gnd Reserved
ResLog Reset signal logic
P1
to Push-button
P6
0.D1 Digital Input “0.D1” activated
0.D1Not Digital Input “0.D1” deactivated
to Digital Inputs
0.D8 Digital Input “0.D8” activated
0.D8Not Digital Input “0.D8” deactivated

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17.23.4 – Setting “User Trigger Oscillo”

The “User trigger Oscillo” is a result of a logical operation (Or, AND, ecc...), it can be used like other logical
output. This operation is possible only via software.

17.23.4.1 - Name

Internal name

17.23.4.2 - User descr.

Fixed

17.23.4.3 - Linked functions

Selection functions

17.23.4.4 - OpLogic

Operation Logic = [None, OR, AND, XOR, NOR, NAND, NOT, Ff-SR, Counter, Rise-UP, Fall-Down]

17.23.4.5 - Timer

Time delay (0 ÷ 600)s, step 0.01s

17.23.4.6 - Timer type

Delay = Add a delay on output activation. The “Timer” is edge triggered on rise edge.
Monostable P = Activated the output for the time “Timer”
Monostable N = Disactivated the output for the time "Timer".
Blinking = The output switches periodically at the frequency defined by "Timer".
Delay-Fall-Down = Delay-Fall-Down

17.23.4.7 – Extra

Extra Time (0 ÷ 65000)s, step 1s

17.23.4.8 - Logical status

“User Trigger Oscillo” Logical status

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17.24.5 – Example: Setting “Oscillo Trigger Logic”

Open software program and connect to the relay.

Select “Change Windows” from “Menu” button

Select “User Variable”

Setting for “User Trigger Oscillo” : “1I>/2I>/3I>”, “AND”, “1”, “Monostable”, “10”.

17.25.5.1 – “Linked Functions”

Select “Linked Functions” related to “User Trigger Oscillo” and press right
button on mouse, select “Value change”:

Select “1I>, 2I>, 3I>” from “Available” box via push-button “<Add”, and press “OK”.
For remove functions, use push-button “>Remove”.

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17.20.5.2 – “Operation Logic” (Oplogic)

Select “Oper Logic” related to “User Trigger Oscillo” and press right button on
mouse, select “Value change”:

Insert “AND” into box and press “OK”:

17.20.5.3 – “Timer”

Select “Timer” related to “User Trigger Oscillo” and press right button on mouse,
select “Value change”:

Select “1” into box and press “OK”:

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17.20.5.4 – “Timer type”

Select “Timer” related to “User Trigger Oscillo” and press right button on mouse,
select “Value change”:

Select “Monostable P” into box and

press “OK”:

17.20.5.5 – “Extra”

Select “Extra” related to “User Trigger Oscillo” and press right button on mouse,

Select “10” into box and press

“OK”:

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17.24 - Function: CB Mngn (Control C/B)

This menu allows to configurate the command for C/B operation.

Options → L/R Ignored [Ignored / Active]

→ Key Enable [Disable / Enable]
→ Key0 None [None / P1 / P2 / P3 / P4 / P5 / P6]
→ KeyC None [None / P1 / P2 / P3 / P4 / P5 / P6]

Timers → tL/R 0.05 s (0.05 ÷ 1) step 0.05 s

→ tC/Bs 0.5 s (0.05 ÷ 1) step 0.05 s

17.24.1 - Description of variables

L/R : Selection of Local/Remote C/B operation mode Ignored or Active

Key : Disable = The pushbuttons on Front Panel are disabled;
Enable = The pushbuttons on Front Panel are Enable
Key0 : Configure a Key as C/B Open
KeyC : Configure a Key as C/B Close
tL/R : Admissible time before detection of the Local/Remote discrepancy alarm.
tC/Bs : Maximum admissible delay for detection of status signal after C/B operation.

17.24.2 – Push-Buttons (Programmable only via software)

It is possible to program up to six buttons on front of the relay, assigning any action / function.

Example: “ ” to “ ” and “ ” to “ ”.

17.24.2.1 – “DI Configurations” (Digital Inputs)

Select “DI configuration”:

Assign to:

Type Functions
Main C/B CloseSts 0.D1 digital input
Local State 0.D3 digital input
Remote State 0.D4 digital input

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17.24.2.2 – “User Variables”

Select “User Variable”:

Assign to:

Type User descr. Linked Functions

UserVar<0> UserVar<0> manOpCmd,Gen.Trip Manual Open Command, Generic Trip
UserVar<1> UserVar<1> CL-Cmd Close Command

17.24.2.3 – “DO Configuration”

Select “DO Configuration”:

Assign to:

Type Linked Functions

0.R1 UserVar<0>
0.R2 UserVar<1>

17.24.2.4 – “Function Setting”

Select “Function Setting”:

Assign to “CB Manage”:

Type Settings
Enable Local/remote Active
Enable Local Keys Enable
KeyO P1
KeyC P2

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17.25 - Function: ExtResCfg (External Reset Configuration)

This menu allows to select the edge polarity of the signal on the digital input configured to reset the relay
after a trip (see 17.2 input ExtReset).
The reset input will reset all the output relays configured as manual reset (latched), the signalisation of the
trip on the display and the indication of the LED are cleared also.

Options → ActOn RiseEdge [RiseEdge / FallEdge]

17.25.1 - Description of variables

ActOn : RiseEdge Active on Rise Edge (Digital Input close).

FallEdge Active on Fall Edge (Digital Input open).

18. Input – Output (via software)

The firmware can manage up to 8 digital inputs and 8 output relays.

The interfacing software also allows to program the operation of the output relays (Physical Output), and Digital
Inputs.

18.1 – Digital Input

0.D1 Programmable (D1)

0.D2 Programmable (D2)
0.D3 Programmable (D3)
Any digital input is active
0.D4 Programmable (D4)
when the relevant terminals
0.D5 Programmable (D5)
(see wiring diagram) are shorted.
0.D6 Programmable (D6)
0.D7 Programmable (D7)
0.D8 Programmable (D8)

18.2 – “DI” Configuration (via software)

Any of the Digital Inputs can be programmed to control one or more of the following functions.
Bi1I> Blocking input First overcurrent element
Bi2I> Blocking input Second overcurrent element
Bi3I> Blocking input Third overcurrent element
Bi1Io> Blocking input First earth fault element
Bi2Io> Blocking input Second earth fault element
Bi3Io> Blocking input Third earth fault element
Bi1Is> Blocking input First negative sequence current element
Bi2Is> Blocking input Second negative sequence current element
Group 1-2 Selection of the setting Group 1 or 2.
Main C/B CloseSts Main Circuit Breaker CLOSE position status
ExtR External Reset input
Local state Locate state
Remote state Remote state
C/B open command Open C/B Command
C/B close command Close C/B Command

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18.2.1 – Example

18.2.1.1 – Name

Logical Input name

18.2.1.2 – Status

Logical Input status

18.2.1.3 – Functions

Selection function

18.2.1.4 – Example: Setting “Digital Input”

Open software program and connect to the relay.

Select “Change Windows” from “Menu”

Select “DI configuration”

Setting for “Bi1I>” : “1I>”.

18.2.1.5 – “Functions”

Select “Functions” related to “Bi1I>” and press right button on mouse, select
“Value change”:

From box “Available”, select “1I>” and press “Add”.

Press “OK” for confirmation. (if Password is request, see § Password)

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18.3 – Physical Outputs

The output relay are fully user programmable and controlled by any protection functions and by any digital
inputs.

0.R1 Programmable (R1)

0.R2 Programmable (R2)
0.R3 Programmable (R3)
0.R4 Programmable (R4)
Available in the relay
0.R5 Programmable (R5)
0.R6 Programmable (R6)
0.R7 Programmable (R7)
0.R8 Programmable (R8)

18.4 - “DO” Configuration

Any Output Relay can be programmed to be controlled (energized) by one or more of the following functions
or Digital Inputs:

18.4.1 - Example configuration

18.4.1.1 - Relay

Relay internal name

18.4.1.2 - Linked function

It’s available only 1 link, select the function for tripping the output relay (for multiple association use
“User Variable”)

18.4.1.3 - Operation Logic

Not Used

18.4.1.4 - Logical Status

Relay Logical status

18.4.1.5 - Output Configuration

Normally Denergized The output relay is denergized in normal conditions and gets energized on
activation of the controlling Functional Output; reset means denergizing.
Normally Energized The output relay is energized in normal conditions and gets denergized on
activation of the controlling Functional Output; reset means energizing.

18.4.1.6 - tON (Operation Time)

This timer controls the duration of the activation of the output relay.

tON : 0 (0.01-10)s, step 0.01s

18.4.1.7 - Relay Status

Relay – Physical status

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18.4.2 - Functions - Operation Mode

Automatic : In this mode the output relay is “operated” (energized if “N.D.”, denergized if “N.E.”)
when the controlling Functional Output is activated and it is reset to the “non operated”
condition when the Functional Output gets disactivated but, anyhow, not before the time
“tON” has elapsed (minimum duration of the operation time)
Manual : In this mode the output relay is “operated” when the controlling Functional Output is
activated and remains in the operated condition until a manual reset command is issued
by the relay keyboard (local commands menu) or via the serial communication. In this
mode the timer “tON” has no effect.
Impulsive : In this mode the output relay is “operated” when the controlling Functional Output is
activated and it remains in the “operated” condition (energized if “N.D.”, denergized if
“N.E.”) for the set time “tON” independently from the status of the controlling Functional
Output.

Open software program and connect to the relay.

Select “Change Windows” from “Menu”

Select “DO Configuration”

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18.4.2.1 - Example: Change settings for “0.R1”

Change settings for “0.R1” : “1I>”, “Normally Deenergized”, “Automatic reset”, “0.5”.

18.4.2.2 - “Linked Functions”

Select “Linked Functions” related to 0.R1 and press right button on mouse,
select “Value change”:

From box “Available”, select “1I>” and press

“Add”.
Press “OK” for confirmation. (if Password is
request, see § Password)

18.4.2.3 - “Output Config”

Select “Output Config” related to “0.R1” and press right button on mouse, select
“Value change”:

Select “Normally Deenergized” from

combo box and press “OK”
(if Password is request, see § Password)

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18.4.2.4 - “Function”

Select “Function” related to “0.R1” and press right button on mouse, select “Value
change”:

Select “Manual reset” from combo box

and press “OK”
(if Password is request, see § Password)

18.4.2.5 - “tON”

Select “tON” related to “0.R1” and press right button on mouse, select “Value
change”:

Set “0.5” and press “OK”

(if Password is request, see § Password)

19. InfoStatus

In this menu is showed the status of relay

Options → LocR Disable

LocR : Local and Remote Status

Disable
Local
Remote
Discrepancy Status

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20. Date and Time

In this menu it is possible to configurate the Date and Time

Date: 20YY / MM / DD (2000/01/01 ÷ 2099/12/31)

YY = Year / MM = Month / DD = Day

Time: HH : MM : 00 HH = hour / MM = Minutes / 00

DofW: Day Es: Wednesday

1 • Press “Menu” for access to the main menu with icons.

2 • Select icon “TimeDate” by pushbuttons “Increase” or “Decrease”.

• Press “Select”.

3 • Press “Modify”.

4 • The last two figures of the Year will appear in bold character; by pushbuttons
“Increase” or “Decrease” set the new figures.
• Press “Next” to go to the next setting.

5 • As above for changing the “Month”

• Press “Next” to go to the next setting.

6 • As above for changing the “Day”

• Press “Next” to go to the next setting.

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7 • As above for changing the “Hours”

• Press “Next” to go to the next setting.

8 • As above for changing the “Minutes”

• Press “Next” to go to the next setting.

9 • The Day of the Week is calculated and displayed automatically.

• Press “Exit” to go back to the main menu.
• Press “Modify” to go back to the step “3”

Press the button “Next” to go back to the previous display.

20.1- Clock synchronization

The internal clock has 1ms resolution and a stability of ±35ppm in the operational temperature range.

It can be synchronized with an external time reference in the following ways:

 Using the standard “Time Synchronization” procedure of the “IEC870-5-103” protocol.

 Using the software or from the DCS with the Modbus RTU protocol.

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21. Healthy (Diagnostic Information)

The relay operates a continuous checking of the vital functionalities and in case an internal failure is detected,
the I.R.F. function (see § I.R.F.) is activated and the Power/IRF led is set to flashing.

Device → No Fail → No Fail

Fail → Fail present
MinorFail → Minor Fail
HistoricalFail → Cleared Fail
IAU FW notC → Firmware MPUs not compatible

Boards → Int.Ram → Internal RAM fault

SCI 1 → Serial comm. Controller 1
SCI 2 → Serial comm. Controller 2
SDRAM → SDRAM fault
Keys → Keyboard failure
TK stop/fail → Time Keeper to sync or stopped/failure
E2pCorrupt → E2P Corrupt
SRAM → SRAM Corrupt
Code Corrupt → Code Corrupt
Data Corrupt → Data Corrupt
SPI → Serial peripheral interface
IIC → I2C bus failure

If an internal self-clearing (transient) fault is detected, it is recorded into an historical file without any other
action.

22. Dev.Info (Relay Version)

In this menu it is possible to read the information relevant to relay unit.

SW Version IPU-R → ####.##.##.# Firmware version

Protect.Model → xxxxxx Protection Type

Serial Number → ###/##/##/#### Relay Serial Number

User Tag → xxxxxxx Relay identification label.

This information can only be modified by the
interface program software and allows the
user to give to the relay any suitable
denomination.

Build → ############ Build identification label.

Line → ############ Line identification label.

23. Maintenance

No maintenance is required. In case of malfunctioning please contact Service or the local Authorized Dealer
mentioning the relay's Serial No reported in the label on relays enclosure.

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24. Wiring Diagram

25. Overall Dimensions

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26. Electrical Characteristics

Approval: CE
Reference Standards IEC 60255 - CE Directive - EN/IEC61000 - IEEE C37
Dielectric test voltage IEC 60255-5 2kV, 50/60Hz, 1 min.
Impulse test voltage IEC 60255-5 5kV (c.m.), 2kV (d.m.) – 1,2/50µs
Insulation resistance > 100MΩ

Environmental Std. Ref. (IEC 60068)

Operation ambient temperature -10°C / +55°C
Storage temperature -25°C / +70°C
Environmental testing (Cold) IEC60068-2-1
(Dry heat) IEC60068-2-2
(Change of temperature) IEC60068-2-14
(Damp heat, steady state) IEC60068-2-78 RH 93% Without Condensing AT 40°C

CE EMC Compatibility (EN61000-6-2 - EN61000-6-4 - EN50263)

Electromagnetic emission EN55011 industrial environment
Radiated electromagnetic field immunity test IEC61000-4-3 level 3 80-2000MHz 10V/m
ENV50204 900MHz/200Hz 10V/m
Conducted disturbances immunity test IEC61000-4-6 level 3 0.15-80MHz 10V
Electrostatic discharge test IEC61000-4-2 level 3 6kV contact / 8kV air
Power frequency magnetic test IEC61000-4-8 1000A/m 50/60Hz
Pulse magnetic field IEC61000-4-9 1000A/m, 8/20µs
Damped oscillatory magnetic field IEC61000-4-10 100A/m, 0.1-1MHz
Immunity to conducted common mode IEC61000-4-16 level 4
disturbance 0Hz-150KHz
Electrical fast transient/burst IEC61000-4-4 level 3 2kV, 5kHz
HF disturbance test with damped oscillatory wave IEC60255-22-1 class 3 400pps, 2,5kV (m.c.), 1kV (d.m.)
(1MHz burst test)
Oscillatory waves (Ring waves) IEC61000-4-12 level 4 4kV(c.m.), 2kV(d.m.)
Surge immunity test IEC61000-4-5 level 4 2kV(c.m.), 1kV(d.m.)
Voltage interruptions IEC60255-4-11
Resistance to vibration and shocks IEC60255-21-1 - IEC60255-21-2 10-500Hz 1g

Caracteristics
Accuracy at reference value of influencing factors 1% In for measure
2% + to (to=20÷30ms @ 2xIs) for times
Rated Current In = 1 or 5A - On = 1 or 5A
Current Overload 100 In for 1 sec; 4 In continuous
Burden on current inputs Phase : 0.01VA at In = 1A; 0.2VA at In = 5A
Neutral : 0.01VA at In = 1A ; 0.2VA at In = 5A
Average power supply consumption < 10 VA
Output relays rating 5 A; Vn = 380 V
A.C. resistive switching = 1100W (380V max)
make = 30 A (peak) 0,5 sec.
break = 0.3 A, 110 Vcc,
L/R = 40 ms (100.000 op.)

Communication Parameter
Rear serial port (Terminal Blocks) RS485 – 9600 to 38400 bps – 8,n,1 – Modbus RTU – IEC60870-5-103
Front serial port (USB) RS232(virtual) – 9600 to 57600 bps – 8,n,1 – Modbus RTU

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representative for the latest update. The trademarks MS Microelettrica Scientifica, Knorr and Knorr-Bremse as well as the figurative mark “K” are registered. Copyright
© Knorr-Bremse AG and Microelettrica Scientifica SpA - all rights reserved, including industrial property rights application. Knorr-Bremse AG and Microelettrica
Scientifica SpA retain any power of disposal, such as for copying and transferring.

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20090 Buccinasco (MI) · Via Lucania 2 · Italy · Tel.: +39 02 575731
E-Mail: info@microelettrica.com · www.microelettrica.com

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