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Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020 1 Monitoring Relay Interface protection Relay Type PI-DIN CEI 0-21: 2019-04

  • Single and Three phase monitoring relay
  • Auxiliary power supply 115...230Vac (H) or 24Vdc (L)
  • Settings, menù and logger navigation by means of front joystick
  • Password protected settings
  • 4 digital inputs, 2 relay outputs
  • Dual Function Alarm LED
  • Data logger with 10 last events logging
  • RS485 Serial communication
  • Approved according to CEI 0-21:2019-04 (relevant to installations with Power ≥ 800W) Product Description The PI-DIN interface protection device is a monitoring relay especially designed for the connection of renewable energy production plants to the public utility. Voltage and frequency are constantly monitored and measured. In case the measured values are out of the Norm specified ranges the grid feeding is interrupted by opening the main breaker. Feeding is restored as soon as the grid values return to specified ranges. This specific device is equipped with 2 relay outputs: one for the control of the main breaker ("DDI") and the second one for the backup Model Mounting Norm Auxiliary supply I/O Serial Communication Option Model Interface protection PI Mounting DIN (4 modules) Norm CEI 0-21: ed. 2019-04 0021 Auxiliary supply HHigh voltage 115...230Vac Low Voltage 24Vdc L I / O 4 digital inputs, 2 relay outputs I4R2 Communication RS485 port S1 Option None XX Ord. key PI DIN 0021 H I4R2 S1 XX breaker ("Rincalzo") which is mandatory on plants above 20kWp according to CEI 0-21:2019-04 Norm. The PI-DIN logs all the events with registration of date, time and type of the last 10 events. The data can be remotely read in real time by means of the RS 485 communication line. The Type Selection line can also be used for remote configuration, simplifying the operation. Integrated protection functions Code/Protection Function Description 27.S1 Min. voltage set 1 27.S2 Min. voltage set 2 59.S1 Max. voltage set 1 (EN 61000-4-30) 59.S2 Max. voltage set 2 81<.S1 Min. frequency set 1 81<.S2 Min. frequency set 2 81>.S1 Max. frequency set 1 81>.S2 Max. frequency set 2 BF (Breaker Failure) DDI open failure Al Seq incorrect phase sequence

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. REV2 18062020 Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21:2019-04 Interface protection Voltage Setpoint Maximum voltage (59.S1)* 1.1Un *the average value is calculated by measuring the voltage for 10 minutes, every 3s a new average value is calculated on the previous 10 minutes, according to CEI EN 61000-4-30. Max. voltage (59.S2) Min. voltage (27.S1) Min. voltage (27.S2) Rated grid frequency 50Hz Frequency Setpoint Max. frequency (81>.S1) 50.2Hz Min. frequency (81<.S1) 49.8Hz Max. frequency (81>.S2) 51.5Hz Min. frequency (81<.S2) 47.5Hz Timings Variable according to the start / end voltage value. Max. 603 s. Turn on delay Overvoltage protection (59.S1) Overvoltage protection (59.S2) 200ms Undervoltage protection (27.S1) 1.5s Undervoltage protection (27.S2) 200ms Overfrequency protection (81>.S1) 100ms Underfrequency protection (81<.S1)100ms Overfrequency protection (81>.S2) 100ms o 1s (remote mode) Underfrequency protection (81<.S2)100ms o 4s (remote mode) Turn on delay connection Reconnection after Interface Protection 0.05s 1.15Un 0.85Un 0.15Un between 1.001 and 1.003 between 0 .95 and 0.97 Max. frequency (81>.S1 ; S2) Min. frequency (81<.S1 ; S2) Max. voltage (59.S1 ; S2) Min. voltage (27.S1 ; S2) between 1 .03 and 1.05 between 0.997 and 0.999 Connection / Reconnection conditions Verified conditions Relapse rate

Events & Allarms messages Events Note Number registered events 10 - FIFO - with hour and date Alarms

  • Triggered for: 59.S1 or 59.S2, 27.S1 or 27.S2, 81>S1 or 81>S2, 81<S1 or 81<S2.
  • Main contactor fault detection (DDI) or internal fault. Registered events Remote Off, Local Control, External Signal. Timings and thresholds settings Parameter Default Setting Range Setting Steps 27.S1: Min. voltage set 1 0.85Un 1.5s 0.2Un ÷ 1Un 0.05s ÷ 5s 0.05Un 0.05s 27.S2: Min. voltage set 2 0.15Un 0.2s 0Un ÷ 1Un 0.05s ÷ 5s 0.05Un 0.05s 59.S1: Max. voltage set 1 EN 61000-4-30 1.10Un ≤ 603s* 1.0Un ÷ 1.20Un 0.01Un 59.S2: Max. voltage set 2 1.15Un 0.2s 1.0Un ÷ 1.3Un 0.05s ÷ 1s 0.01Un 0.05s 81<.S1: Min. frequency set 1 49.8Hz 0.1s 47.0Hz ÷ 50.0Hz 0.05s ÷ 5s 0.1Hz 0.05s 81<.S2: Min. frequency set 2 47.5Hz 0.1s(1) o 4s(2) 47.0Hz ÷ 50.0Hz 0.05s ÷ 5s 0.1Hz 0.05s 81>.S1: Max. frequency set 1 50,2 Hz 0.1s 50.0Hz ÷ 52.0Hz 0.05s ÷ 5s 0.1Hz 0.05s 81>.S2: Max. frequency set 2 51.5Hz 0.1s(1) o 1s(2) 50.0Hz ÷ 52.0Hz 0.05s ÷ 5s 0.1Hz 0.05s (1) Local mode (2) Remote Mode According to the Norm the timing setting can only be modified when the device is set on "remote mode". Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21:2019-04 Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020 3 *Note: Variable according to the start / end voltage value.

Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21: 2019-04 Reading input specifications I/O segnals specifications Digital inputs functions Input 1 Local Control Terminals 1-33 or 1-3 Input 2 External Signal Terminals 2-3 or 2-33 Input 3 Remote Off Terminals 41-3 or 41-33 Input 4 DDI Auxiliary Contact Terminals 42-33 or 42-3 Common terminals Terminals 3 and 33 Digital inputs type “LOW” level input voltage < 0,5V “HIGH” level input voltage 2.4V a 25VCC Max. input current < 1mA Output relay function Output Relay 1 DDI Breaker Terminals NO 12, NC 11, COM 13 Output Relay 2 Backup Breaker Terminals NO 9, NC 8, COM 10 Output relay type Contact configuration SPDT Contact AC1 8A @ 250Vac Contact AC15 2.5A @ 250Vac Contact DC12 5A @ 24Vdc Contact DC13 2.5A @ 24Vdc Mechanical life > 30*10 6ops Electrical life > 10*105ops @ 8A 250Vac cosϕ1 Rated inputs System type 1P , 3P , 3Pn Rated voltage 230VLN/400VLL Distortion (THD) +/-1% @ full scale Temperature drift ≤ 200ppm/°C Rated frequency 50Hz Input impedance 400VL-L 230VL-N Display accuracy Voltage ±0.5% RDG +1DGT Frequency ±0.1Hz Voltage repeatability ≤5% Frequency tolerance ±20mHz Timing repeatibilty ≤3% ±20ms Main Functions Password 4-digit numeric code Default Password “0”. System selection 3Ph system 3-phases (4-wires). 3Ph system 3-phases (3-wires). 1Ph system 1-phase (2-wires). Clock Functions Clock and calendar Time format Hour: minutes: seconds with formats selection 24 hours or AM/PM. Date format Day-month-year with DD-MM-YY or MM-DD-YY format selection Battery life 10 years Table for settings as inputs “OP MODE” Inputs Frequency thresholds Tripping timingsInput 2“External Signal”Terminals 2-3 or 2-33 Input 3“Local Control”Terminals 1-33 or 1-3 “Loc”: local operation Irrelevant Open Restrictive 49.80Hz ÷ 50.20Hz 49.80Hz - 0.1s 50.20Hz - 0.1s Irrelevant Close Permissive 47.50Hz ÷ 51.50Hz 47.50Hz - 0.1s 51.50Hz - 0.1s “Rem”: remote operation Open Irrelevant Restrictive 49.80Hz ÷ 50.20Hz 49.80Hz - 0.1s 50.20Hz - 0.1s Close Irrelevant Permissive 47.50Hz ÷ 51.50Hz 47.50Hz - 4s 51.50Hz - 1s 4 Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV1 171019

Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21: 2019-04 Serial communication RS485 RS485 Port Type Multidrop, bidirectional (static and dynamic varia- bles). Connection 2 wires, Half Duplex. Maximum distance 1000m, termination on instrument. Address 247, selezionable by frontal keyboard. Protocol MODBUS/JBUS (RTU) Data (bidirectional) Dynamic (only reading) Variables of system and phase: please see “List of variables measured” table. Static (reading and writing) All configuration parameters. Data format 1 bit for start, 8 bit for dates, no parity/odd parity dispari, equal parity, 1 bit for stop. Communication speed Selectionable: 4.8k, 9,6k, 19.2k bit/s. Network devices 1/5 unit load. Maximum 160 devices in the same network. General specification Operating temperature From -20 a +55°C (-4°F to 131°F) (U.R. from 0 to 90% without condensation @ 40°C) Storage temperature From -30 to +70°C (-22°F without condensation @ 40°C) Installation category Cat. IV (IEC60664, EN60664) Dielectric strength 3310Vac for 1 minute Rejection rate CMRR 100dB, from 48Hz to 62Hz EMC according to EN61000-6-3 and EN61000-6-2. Protection degree Front IP50 Screw terminals IP20 Pollution degree 3 Confomity Standards Safety EN61010-1 Approvals Terminals Cable references CE, CEI 0-21:2019-04 Screw Max. 2.5 mm2. Tightening torque Min./Max.: 0.4Nm/1Nm. Housing Dimensions (WxHxD) 90x71.6x66.3mm Material Front: ABS, Self extinguishing: UL 94 V-0 Mounting DIN rail Weight 300g ca (including packaging) Auxiliary power supply specifications Auxiliary power supply " H " version 115..230Vac, 48-62Hz " L " version -20% +15% 24Vdc -20% +20% Self-consumption " H " version 7VA " L " version 2W Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020 5

Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21:2019-04 Display, LEDs and commands Display refresh time ≤ 100 ms Display 2 lines, 4-DGT 1 line, 8-DGT Model LCD Digit dimension h 7mm Joystick Variables reading selection, operating parameters settings, triggered events list. Rotary switch programming menus access: password, date & time, interface protection parameters, system, etc... Selector is provided with a slit for lead seal locking. LED on front panel Dual function RED LED Lit: alarm triggered Blinking: Alarm triggered, elapsing delay before opening. 1. Joystick Programming menus parameters configuration and navigation. Events and variables scrolling. 2. Display LCD with alphanumerical indications: - Display configuration parameters; - Display all the measured variables; - Display logged events. 3. Programming menu selector With the Rotary selector ( lead seal lockable ) it is possible to select the main menu, the setting menu or the configuration menu. 4. Alarm LED Status LED - OFF , no alarms - ON, triggered alarm protection tripped - Blinking, alerm triggered, pr otection tripping after delay. Front panel description 6 Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020

Note: terminals 3 and 33 are internally connected AUX POWER INPUT AUX POWER INPUT BACKUP NC CONTACT BACKUP NO CONTACT BACKUP COMMON CONTACT DDI NC CONTACT DDI NO CONTACT DDI COMMON CONTACT RS 485 B (+) RS 485 A (-) REMOTE OFF INPUTS COMMON IN AUX DDI (for BACKUP) L3 MEASURE L2 MEASURE L1 MEASURE NEUTRAL MEASURE13 Input/Output pinout Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21:2019-04 1 2 3 4 5 6 7 8 9 10 11 12 13 31 32 33 41 42 43 51 52 53 54 55 56 57 Terminal board layout (back view) IMPORTANT NOTICE: Apply the ferrite filter contained in the box to the PI-DIN interface. A ferrite filter is provided in the box. The ferrite shall be used in order to eliminate possible disturbances on the digital inputs. In order to do that it is suggested to position it around the the cables connected to the digital inputs: all the four inputs and the two com- mon terminals. The ferrite has to be placed as close as possible to the device. Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020 7

115...230VCA 50Hz, 7VA 24VDC FROM AUXILIARY POWER SUPPLY VOLTAGE MEASUREMENT CONTROL INPUTS FUSES: SUPPLY INPUT 4: BACKUP for PLANTS with Pn>20kW OUTPUT2: BACKUP MAX 250V 5A AC1 TO GRID OUTPUT 1: INTERFACE DEVICE (DDI) MAX 250V 5A AC1 TO BACKUP DEVICE (Request for Pn>20kW) INTERFACE DEVICE (DDI) AUXILIARY POWER SUPPLY GENERATION INTERFACE DEVICE (DDI) AUX CONTACT (for BACKUP) *SEE NOTE1 56 5 5 N 53 51 57 L1 L2 L3 N 13 12 1133 42 10 9 8 DDI 2134 1 COM EXTERNAL SIGNAL REMOTE OFF LOCAL CONTROL INTERFACE DEVICE (DDI) *NOTE1: FOR INSTALLATIONS 20kWp OR BELOW A JUMPER SHALL BE MADE BETWEEN TERMINALS 42 AND 33 IN PLACE OF BREAKER AUX CONTACT. VOLTAGE MEASUREMENT 55 57 53 LN FROM AUXILIARY POWER SUPPLY DISABLE BACKUP FUNCTION 42 33 AUX POWER SUPPLY 115-230VCA 50Hz, 7VA 24VDC INTERFACE DEVICE (DDI) TO GRID OUTPUT 1: INTERFACE DEVICE (DDI) MAX 250V 5A AC1 INTERFACE DEVICE (DDI) AUXILIARY POWER SUPPLY GENERATION L N 13 12 11 DDI FUSES: SUPPLY CONTROL INPUTS 2134 1 COM EXTERNAL SIGNAL REMOTE OFF LOCAL CONTROL Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21:2019-04 Three Phases System wirings Single Phases System wirings THREE PHASES SYSTEM DIAGRAMS 3P+N, 3P SINGLE PHASE DIAGRAM 8 Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020

Monitoring Relay Interface Protection Relay Type PI-DIN CEI 0-21:2019-04 Dimensions (mm) Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV2 18062020 9