interface protection monitoring relay type pi96 in according … · 2013-07-08 · • measurement...

Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV0 070513 1

Interface protection Monitoring Relay Type PI96In according to CEI 0-21 technical norm

• For single-phase line systems (where required)• For three-phases systems with or without neutral• Imbalance control for produced power• Monitoring of phase sequence• RTC function with operating hours counter• Self-protection components• "Power Save" mode for limit consumption• Input for auxiliary contact DDI• Input for remote control• Input for local control• Input for communication presence• Input (configurable auxiliary) for external alarm• Relay output command for Interface Device backup • Relay output for backup (for systems> 20kWp)• Measurement variables VLL, VLN, Hz, (recording min/max)• Measurement variables AL, AN, VA, W, VAr, PF (by

external CT) Recording the maximum and minimum• Measurement of voltage and current THD• Measure energy kWh, kVArh imported / exported total

/ partial

Product DescriptionProtection relayinterface with intelligentenergy meter integratedvisualization system withLCD display. The devicePI96 is configured to beused as a protectiverelay interface and iscompliant with standardCEI 0-21 technique inmanufacturing facilitiesenergy. The protectionrelay interface PI96 is

particularly suitable forthe measurement of themain variables as well asact as a protective relay.PI96 The device is basedon a modular conceptfor panel mounting IP65factor. This protectionrelay interface has 2relay outputs, one forthe control of the maindisconnect (InterfaceDevice) and the other to

ModelPower SupplyCommunicationOptions

Type SelectionModel

Panel mounting PI960021 Power Supply

115..230VCA, -20%/+15% H(48..62Hz)

Option 24VCC, -20%/+10% LCommunication

RS485/RS232 Ports S1

Ord. Key PI96 0021 H I6 R4 S1 XX

control the auxiliarydevice such as backupof the Interface Device insystems with an outputexceeding 20kWp inaccordance with therequirements ofStandard CEI 0-21. Thedevice is equipped withother PI96 2 relayoutputs for the control ofauxiliary functions (egrelease for imbalance of

power, etc.). Theprotection relay interfacePI96 is also providedwith two serialcommunication linesRS232 / RS485 forremote monitoring notonly of the values ofvoltage, frequency,current, power andenergy, but also forevents recorded.

Integrated Protection FunctionsCode/Protection Function Description

27.S1 minimal voltage set 1

27.S2 minimal voltage set 2

59.S1 maximal voltage set 1 EN 61000-4-30

59.S2 maximal voltage set 2

81<.S1 minimal frequency set 1

81<.S2 minimal frequency set 2

81>.S1 maximal frequency set 1

81>.S2 maximal frequency set 2

BF (Breaker Failure) Interface Device open failure

Power “IMBALANCE” imbalance control for produced power (only three-phases systems)

• SW programming block• Protection Degree IP65• Auxiliary power supply AC and DC

2 Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV0 070513


Interface protectionVoltage Setpoint

Upper Voltage (59.S1)* 1,1 Un*Average mean voltagemeasured on 10min.Every 3 seconds a newvalue of the previous 10minhas to be created andcompared to set valueAcc to CEI EN 61000-4-30Upper voltage (59.S2) 1,15 UnLower voltage (27.S1) 0,85 UnLower voltage (27.S2) 0,40 Un

Rated grid frequency 50HzFrequency setpoints

Higher frequency ( 81>.S1 ) 50,5HzLower frequency ( 81<.S1 ) 49,5HzHigher frequency ( 81>.S2 ) 51,5HzLower frequency ( 81<.S2 ) 47,5Hz

TimingsPower ON delay 30sUpper voltage protection(59.S1) ≤3sUpper voltage protection (59.S2) 200msLower voltage protection (27.S1) 400msLower voltage protection (27.S2) 200msHigher frequency protection(81>.S1) 100msLower frequency protection (81<.S1) 100msHigher frequency protection (81>.S2) 100ms or 1s (remote mode)Lower frequency protection (81<.S2) 100ms or 4s (remote mode)

Connection / reconnectioncondition

Condizioni sotto verifica U ≥ 85% ≤ 110% andf ≥ 49,90Hz ≤ 50,10Hz

Power ON delay /connection ≥ 30sReconnection forPI intervention ≤ 0,1s

Alarm and diagnostics messages

Events Notes

Max Number of events stored 1000 - FIFO - con data ed ora evento

Alarms

• Intervention for: 59.S1 or 59.S2, 27.S1 or 27.S2, 81>S1 or81>S2, 81<S1 or 81<S2.

• Main contactor survey fault (PI) and internal fault.• External alarm state (Input 5), up to 4 programmable vir-

tual alarms.

Events recording Remote turn off, local control, external signal.

Threshold and timings settings

Feature Default Setting range Setting Steps

27.S1: minimal voltage set 10,85Un

0,4s0,2Un ÷ 1Un0,05s ÷ 5s

0,05Un0,05s

27.S2: minimal voltage set 20,4Un0,2s

0Un ÷ 1Un0,05s ÷ 5s

0,05Un0,05s

59.S1: maximal voltage set 1EN 61000-4-30

1,10Un≤ 3s

1,0Un ÷ 1,20Un-

0,01Un-

59.S2: maximal voltage set 21,15Un

0,2s1,0Un ÷ 1,3Un

0,05s ÷ 1s0,01Un0,05s

81<.S1: minimal frequency set 149,5Hz

0,1s47,0Hz ÷ 50,0Hz

0,05s ÷ 5s0,1Hz0,05s

81<.S2: minimal frequency set 247,5Hz

0,1s(1) o 4s(2)47,0Hz ÷ 50,0Hz

0,05s ÷ 5s0,1Hz0,05s

81>.S1: maximal frequency set 1 50,5Hz

0,1s50,0Hz ÷ 52,0Hz

0,05s ÷ 5s0,1Hz0,05s

81>.S2: maximal frequency set 251,5Hz

0,1s(1) o 1s(2)50,0Hz ÷ 52,0Hz

0,05s ÷ 5s0,1Hz0,05s

(1) Local Mode (2) Remote Mode In according to norm the setting of the timing for 81>.S2 and 81<.S2 can onlybe modified for the remote mode the remote mode. The local is always 0.1s.



Reading Input SpecificationsRated Inputs

System type: 1Ph, 3Ph, 3Ph+NCurrent type Galvanic insulation

by means of built-in CT’sVoltage 230VLN/400VLL

Current range (by CT) 6ATotal Harmonic Distortion (THD) ±1% FS (FS: 100%)Temperature drift ≤ 200ppm/°CFrequency sample 3200 sample/s @ 50HzMeasures See “List of the variables

that can be connected to”Method TRMS measurements of

distorted wave forms.Coupling type Direct voltage,

by means of CT’sCrest factor ≤3 (15A max. peak)Current Overloads

Continuous 6A, @ 50Hz/60HzFor 500ms 120A, @ 50Hz/60Hz

Voltage OverloadsContinuous 1.2 UnFor 500ms 2 Un

Frequency 40 to 440 HzInput impedance

400VL-L > 1.6MΩ230VL-N > 1.6MΩ5(6)A < 0.2VA

Accuracy(Display + RS485) In: 5A, Imax: 6A;(@25°C±5°C,U.R.≤60%,48..62Hz) Un: 230VLN, 400VLL

Current 0.01In ÷ 0.05In: ± (0.5% RDG +2DGT)0.05In ÷ Imax:± (0.2% RDG +2DGT)

Phase-neutral voltage ± (0.2% RDG +1DGT)Phase-phase voltage ± (0.5% RDG +1DGT)Frequency ± 0.01Hz (45 ... 65Hz)Active and Apparent power 0.01In ÷ 0.05In @PF 1: ±

(1%RDG+1DGT)0.05In ÷ Imax @PF1: ± (0.5% RDG+1 DGT)0.05In ÷ Imax @PF0.5L, 0.8C: ± (2% RDG+1 DGT)

Reactive power 0.05In a 0.1In, senϕ = 0.5L/C: ± (4%RDG+1DGT)0.1In to Imax, senϕ = 0.5L/C: ± (3%RDG+1DGT)0.05In a Imax, senϕ=1: ± (3%RDG+1DGT)0.02In ÷ 0.05In, senϕ=1: ± (4%RDG+1DGT)

Active energy Classe A in according toEN50470-3

Reactive energy Class 3 in according to EN62053-23

Start up current 5mA

Signals I/ O specification

Funzione ingressi digitali Input 1 “Remote turn off”

Terminals 30-29 o 30-36Input 2 “External signal”

Terminals 31-29 o 31-36Input 3 “Local control”

Terminals 32-29 o 32-36Input 4 “Auxiliary contact PI”

Terminals 33-29 o 33-36Input 5 “free,

in the events memory”Terminals 34-29 o 34-36

Input 6 “Power Save input”Terminals 35-29 o 35-36

Digital Inputs typeInput Voltage LO < 0,5VInput Voltage HI 2,4V ÷ 25VdcClosed contact current < 1mAMax operating freq. ≤ 20Hz with 50% duty cycle

Relay outputsOutput 1 DDI

Terminals 21-22Output 2 Backup Breaker

Terminals 23-24Output 3 Operation Ok signalling

Terminals 25-26Output 4* Backup Relay 1 (DDI)

Terminals 27-28Ouput relays type

Contact configuration SPSTContact AC1 5A @ 250VacContact AC15 1A @ 250Vac

* In case of “Power Save”operation mode,the Relay 4 is de-energized.

Interface settings table as inputs function

Operating mode configurationin “OP MODE” menù

InputsThresholdsfrequency

Timings forintervent

Input 2“External Signal”Terminals 31-29/36

Input 3“Local Control”

Terminals 32-29/36

“Loc”:Local operating mode

Not important Open Restrittive49,50kHz ÷ 50,50Hz

49,50Hz - 0,1s50,50Hz - 0,1s

Not important Close Permissive47,50kHz ÷ 51,50Hz

47,50Hz - 0,1s51,50Hz - 0,1s

“Rem”:Remote operating mode

Open Not important Restrittive49,50kHz ÷ 50,50Hz

49,50Hz - 0,1s50,50Hz - 0,1s

Close Not important Permissive47,50kHz ÷ 51,50Hz

47,50Hz - 4s51,50Hz - 1s



Serial Communication RS485Porta RS485

Type Multidrop, bidirectional(static and dynamic varia-bles).

Connection 2 fili, Half Duplex.Max distance 1000m,termination directly on instruments.

Address 247, selezionabie by front keyboard.

Protocol MODBUS/JBUS (RTU)

Dates (bidirectional)Dinamics (only reading) System variables and

phase-variables: see “List of variables measured”.

Statics (reading and writing) All configurationparameters.

Date format 1 bit for start, 8 bit for dates,no parity/parity, odd, parity1 bit for stop.

Communication speed Selectionable: 9,6k, 19,2k, 38,4k, 115,2k bit/s.

Devices in network 1/5 unit load. Max 160 device on the same network.

General specificationsOperating temperature -10 ÷ +55°C (14°F ÷ 131°F)

(U.R. 0 ÷ 90% not-condensing @ 40°C) In according to CEI 0-21

Storage temperature -30 ÷ +70°C (-22°F ÷ 158°F) (U.R. < 90% not-condensing @ 40°C)

Installation category Cat. IV (IEC60664, EN60664)Insulation According to CEI EN 60255-5

Pulse 1, 2/50µs: 5kV (CEI 0-16)Dielectric strength: >2kVACfor 1 minuteInsulation resistance:> 1000Mohm

EMCImmunity according to

CEI EN 50263 and EI EN60255-26, class B

Emissions according toCEI EN 60255-25 andCEI EN 55014-1, classe B

Protection degreeFront IP65Screw terminals IP20

Safety EN 60255-5,IEC60664, IEC61010-1EN60664, EN61010-1

Approvals CE, CEI 0-21:2012-06Connections Screw-type

Cable cross-section area Max. 2.5 mm2.Min./max. screws tightening torque: 0.4Nm/0.8Nm.

HousingDimensions (WxHxD) Module support:

96x96x82mmwith I/O modules

Max. depth behind the panel With 2 provided modules: 72mm

Material Front: ABS,Self-extinguishing: UL 94 V-0Back modules: PA66,Self-extinguishing: UL 94 V-0

Mounting Panel mountingWeight 450g

(packing included)

Power supply specificationsAuxiliary power supply H: 115 ÷ 230VCA, 48-62Hz

-20% +15%L: 24VCC

-20% +10%

Power consumptionH Standard mode 3,5W/8VAH “Power Save*” mode 2,7W/6VAL Standard mode 3,5WL “Power Save*” mode 2,7W

*Note: "Power Save" mode allows the reduction of self-consumption of PI96 in order to better achieve the autonomy of 5sfor the entire protection interface system (SPI).



Main functionsPassword Numeric code of 4 digits.

Default Password “0000”.System selection

System 3-Ph.+N 3-Phase (4-wire)System 3-Ph 3 Phase (3-wire)System 1-Ph 1-Phase (2-wire)

Transformer ratioTA 1.0 ÷ 9999.

If the currents and/orvoltages being measured exceed their maximum limits the display shows the error message “EEEE”.

FilterOperating range Selectable fro 0 to 100%

of the input display scaleFiltering coefficient Selectable from 1 to 32Filter action Measurements, analogue

signal retransmission, serialcommunication(fundamental variables: V, A,W and their derived ones).

DisplayingNumber of variables Up to 5 variables per page.

See “Front view”. Many different set of variables available (see “Display pages”) according to the application being selected. One page is freely programmable as combination of variables.

Backlight The backlight time is programmable from 0 (always on) to 255 minutes.

Harmonic analysis THD up to the 32ndharmonics on current and voltage.Details of the individual components are available by serial communication.

AlarmsVirtual Up to 4 in memory for the

different variables measu-red.

Working mode Up alarm and down alarm.Controlled variables The alarms can be connec-

ted to any instantaneous variable available in the table “List of the variables that can be connected to”.

Set-point adjustment From 0 to 100% of the display scale

Hysteresis From 0 to full scaleMin. response time 200ms, filters excluded.

Set-point on-time delay: “0 s”.Values Reset By means of the front key-

pad. It is possible to reset the following data:- all the max and dmd values.- total energies: kWh,kvarh;- partial energies: kWh,kvarh

ClockFunctions Universal clock and calendar.Time format Hour: minutes: seconds

with selectable 24 hours orAM/PM format.

Date format Day-month-year with selectable DD-MM-YY or MM-DD-YY format.

Battery life 10 yearsEnergie measure down counting of separate

countersTotal counters + kWh to 10 digit

- kWh to 10 digit+ kVArh to 10 digit- kVArh to 10 digitHours of operation

Partial counters + kWh to 10 digit- kWh to 10 digit+ kVArh to 10 digit- kVArh to 10 digit

Insulation between inputs and outputs

Measuring inputs Relay outputs Digital InputsCommunication

ports Aux power supply

Measuring inputs - 4kV 4kV 4kV 4kV

Relay outputs 4kV - 4kV 4kV 4kV

Digital Inputs 4kV 4kV - 4kV 4kV

Communicationports

4kV 4kV 4kV - 4kV

Aux power supply 4kV 4kV 4kV 4kV -



List of variables measured

No Variables 1-Phase System1-Phase Systemwithout neutral

1-Phase Systemwith neutral

Note

1 V L-N sis O # X sis = system = ∑ (1) (2)2 V L1 X # X (1) (2)3 V L2 O # X (1) (2)4 V L3 O # X (1) (2)5 V L-L sis O X X sis = system = ∑ (1) (2)6 V L1-2 # X X (1) (2)7 V L2-3 # X X (1) (2)8 V L3-1 # X X (1) (2)9 Ani O O X10 A L1 X X X (1) (2)11 A L2 O X X (1) (2)12 A L3 O X X (1) (2)13 VA sis X X X sis = system = ∑ (1) (2)14 VA L1 X # X (1) (2)15 VA L2 O # X (1) (2)16 VA L3 O # X (1) (2)17 var sis X X X sis = system = ∑ (1) (2)18 var L1 X # X (1) (2)19 var L2 O # X (1) (2)20 var L3 O # X (1) (2)21 W sis X X X sis = system = ∑ (1) (2)22 W L1 X # X (1) (2)23 W L2 O # X (1) (2)24 W L3 O # X (1) (2)25 PF sis X # X sis = system = ∑ (1) (2)26 PF L1 X # X (1) (2)27 PF L2 O # X (1) (2)28 PF L3 O # X (1) (2)29 Hz X X X (1) (2)30 Phase seq. O X X31 Asy VLL O X X Asymmetry32 Asy VLN O O X Asymmetry33 Run hours X X X34 kWh (+) X X X Total35 kvarh (+) X X X Total36 kWh (+) X X X Partial37 kvarh (+) X X X Partial38 kWh (-) X X X Total39 kvarh (-) X X X Total40 kWh (-) X X X Partial41 kvarh (-) X X X Partial42 A L1 THD X X X (1) (2)43 A L2 THD O X X (1) (2)44 A L3 THD O X X (1) (2)45 V L1 THD X O X (1) (2)46 V L2 THD O O X (1) (2)47 V L3 THD O O X (1) (2)48 V L1-2 THD X X X (1) (2)49 V L2-3 THD O X X (1) (2)50 V L3-1 THD O X X (1) (2)

(X) available; (O) not available (variable not available on display); (#) Not available (the page is not available);(1) Max value; (2) Dmd value.



Display, LED’s and commandsDisplay refresh time ≤ 100 msDisplay 4 lines, 4-DGT, 1 lines,

10-DGTType LCD, single colour white

backlightDigit dimensions 4-DGT: h 11 mm; 10-DGT:

h 7 mmInstantaneous variables read-out 4-DGTEnergies variables read-out Imported Total/Partial:

8+2DGT, 9+1DGT or 10DGT;Exported Total/Partial: 8+2DGT, 9+1DGT or 10DGT (with “-“ sign).

Run-hour counter 8+2 DGT (99.999.999 hours and 59 minutes max)

Overload status EEEE indication when the value being measured is exceeding the “Continuousinputs overload” (maximummeasurement capacity),

Max. and Min. indicationIstant variables 4 digits: 0,000 ÷ 9999 Energy 10 digits:

0,00 ÷ 9.999.999.999with automat scale:8+2 DGT, 9+1 DGT, 10 DGT

Key-pad Variable selection,programming of instrumentoperating parameters,readings "dmd", "max",list of inquiry interventions, reset total and partial energy.

Front position LEDsL1 59 protection trippingL2 27 protection trippingL3 81> protection trippingL4 81< protection tripping4 LED fixed Main contactor failure

(backup contactor)4 LED blinking Self Diagnosis failurekWh pulsating Flashing frequency

proportional to consump-tion of instant energy.

Back position LEDsOn the base Green as power-onOn the communication modules Two LEDs: one for TX (green)

and one for RX (amber)

1. Key-padTo program the configuration parameters and scroll thevariables on the display.

2. DisplayLCD-type with alphanumeric indications to:- display configuration parameters;- display all the measured variables.

3. Energy LEDRed LED blinking proportional to the energy being measured.Flashing frequency proportional to the consumption of instantenergy (only with TA).

4. LED di AllarmeThe alarm LED identify which type of threshold has beenexceeded:- 81<- 81>- 27- 59

5. Main bar-graphGraphical display of the percentage of power generatedcompared to the installed capacity (for instrument with currentmeasurements by CT).

Front Panel Description

21 22 23 24 25 26 27 28

29 30 31 32 33 34 35 36


Wiring diagrams, inputs / outputs


25

26

27

28

21

22

23

24

OUTPUT 4AS OUTPUT 1

4 RELAY OUTPUTS

OUTPUT 1DEVICE INTERFACE

OUTPUT 2BACKUP

OUTPUT 3PI OK/FAULT

33

34

35

36

29

30

31

32

AUX CONTACT FROM INTER(for DEVICE)

POWER SAVE

REMOTE EVENT

6 DIGITAL INPUTS

REMOTE TURN OFF

COM

COM

EXTERNAL SIGNAL

LOCAL CONTROL

M F I6 R4 module

15 14 13 12 11 10

1 2 3 4 5 6 7 8 9

Terminal block layout (back view)

I/O Module

Basic Module

41 42 43 44 45 46 47 48

RS485 RS232

RS232 / RS485 Serial Communication Ports

RS232/485 Serial ComModule

ATTENTION: you have to apply on power cable the filter which isincluded in the package of the PI96.Inside the package there is a ferrite that must be used to eliminate anynoise on the digital inputs. For this purpose, you have to apply this fil-ter on power cable wire that is connected to terminal 14 or 15.

AUX SUPPLY115...230VCA(opz. 24VCC)

FROMAUX SUPPLY

VOLTAGEMEASUREMENT

CONTROLINPUTS

*SEE NOTE2

CURRENTMEASUREMENT

ONLY FOR PLANTS WITH POWER IMBLANCE POSSIBILITY

FUSES:supply 115...230VCA, -20%/+15%:F=250V[T] 630mAALIM. 24VCC, -20%/+10%:F=250V[T] 3,15A

*NOTE1::FOR POWER UP TO 20kW,YOU HAVE TO APPLY A JUMPERBETWEEN TERMINALS 33 AND 36 (or 29)IN PLACE OF THE CONTACT Active Power POSITIVE DIRECTION

INPUT 4:BACKUP

for POWERUP TO Pn>20kW

I/O MODULE BASIC MODULE

TOGRID

OUPUT 1: DDI

MAX 250V5A AC1

INTERFACEDEVICE (DDI)AUX POWER

SUPPLY

GENERATION

INTERFACEDEVICE (DDI)

AUX CONTACT(for BACKUP)

*SEE NOTE1

*NOTE2:!!! WARNING !!!

!!! DANGER OF SHORT-CIRCUIT !!!ONLY FOR

THREE-PHASES SYSTEM WITHOUT NEUTRALINSTALL A JUMPER BETWEEN L3-N

14 15 10

L1

L2

L3

N

11 12 13

S1

TA1

L1 L2- + L3 N

TA2 TA3

S2 S1 S2 S1 S2

1 2 4 5 7 8

S2 S2 S2

3 6 923 2433

~

~

DDI

363531 3229 30 34

COM

EXTERNAL SIGNAL

REMOTE OFF

LOCAL CONTROL

REMOTE EVENT

POWER SAVE

OUPUT 2:BACKUP

MAX 250V5A AC1

TO BACKUPDEVICE

(for POWER UP TOPn>20kW)

21 22

DDI

VOLTAGEMEASUREMENT

CONTROL INPUTS

10 13

L1 N

FROMAUX POWER SUPPLY

DISABLEBACKUP

FUNCTION

33

AUX SUPPLY115-230VCA(opz. 24VCC)

CURRENTMEASUREMENT

DDI

OPTIONAL WIRING (not required by Norm)FOR POWER AND ENERGY MEASURES

Active PowerPOSITIVE DIRECTION

I/O MODULE BASIC MODULE

TOGRID

OUTPUT 1: DDIMAX 250V 5A AC1

INTERFACE DEVICE (DDI)AUX POWER SUPPLY

GENERATION

14 15

L1

N

S1

TA

- + S2

1 2

S2

321 22

~

~

DDI

FUSES:SUPPLY 115...230VCA, -20%/+15%:F=250V[T] 630mAALIM. 24VCC, -20%/+10%:F=250V[T] 3,15A

363531 3229 30 34

COM

SEGNALE ESTERNO

TELEDISTACCO

COMANDO LOCALE

EVENTO REMOTO

POWER SAVE



THREE-PHASES SYSTEM 3Ph+N (4 WIRES, WITH NEUTRAL), 3Ph (3 WIRES, WITHOUT NEUTRAL)

MONO-PHASE SYSTEM 1Ph

Three-Phases System Wiring diagrams

Mono-Phase System Wiring diagrams

96,00

96

,00

85,90

20,20 29,70 16,00 20,00

910

+1,8mm

I/O MODULE (ALWAYS INCLUDED)

Dimensions of modules

10 Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network REV0 070513


Dimensions and Panel cut-out

COMMUNICATION MODULE (ALWAYS INCLUDED)

I/O Module Serial Com ModuleRS232/485

interface protection monitoring relay type pi96 in according … · 2013-07-08 · • measurement...

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