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Operating
and
assembly
manual
Translation
No.: INS/003/0001.0001.0001/2023/002
READ BEFORE ASSEMBLY
KEEP FOR THE WHOLE
LIFETIME OF THE DEVICE
en.corab.pl
Corab Encor
Inverter
4k/6k/8k/10k/12k
Year of release:
2023
version: 2

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Summary of Contents for CORAB Encor CE 4k

  • Page 1 Year of release: 2023 version: 2 Operating assembly manual Translation No.: INS/003/0001.0001.0001/2023/002 Corab Encor READ BEFORE ASSEMBLY KEEP FOR THE WHOLE Inverter LIFETIME OF THE DEVICE 4k/6k/8k/10k/12k en.corab.pl...
  • Page 2 en.corab.pl...
  • Page 3: Table Of Contents

    Table of contents 3 / 58 Table of contents: 3 Rules of use Introduction 3.1 Description of the device 1.1 General information 3.2 Use of the inverter according to its 1.2 Scope of delivery intended purpose 1.3 Definitions and abbreviations 3.3 Using the inverter against its 1.4 Identification details of the inverter intended use...
  • Page 4 4 / 58 Table of contents Table of contents: 9 Inspections and cleaning 6 Assembly 9.1 Personnel and safety 6.1 Personnel and safety 9.1.1 Results of non-compliance 6.1.1 Results of non-compliance 9.2 Initial and final actions 6.2 Procedures and tests 9.3 Inspections 6.2.1 Tools used for assembly 9.3.1 Semi-annual inspection...
  • Page 5: Introduction

    Manufacturer – Corab S.A. seated in Olsztyn, entered in to the register of entrepreneurs of the National Court Register under number 0000950779, the records of which are held by the District Court in Olsztyn, the 8th...
  • Page 6: Identification Details Of The Inverter

    6 / 58 Introduction Commercial Division of the National Court Register, holder of NIP (Tax ID no.) 7390207757. Device – the inverter and the set of components covered by the Manufacturer’s delivery. The device has to be installed in accordance with this manual and used with the intended purpose. Additional Elements –...
  • Page 7: Declaration

    Appendix no. 1 to this manual. 1.6 Liability This operating manual is an integral part of the Corab Encor 4-12k inverter. The Customer shall be liable for compliance with the applicable regulations of law in scope of assembly of inverters, electrical installations and fire protection.
  • Page 8: Safety - General Information

    8 / 58 2 Safety - general information 2 Safety - general information This manual is to specify the minimum safety rules within the scope of assembly and use of the device. The quali- fied personnel is obligated to choose and have protective equipment for the time of assembly works. The manual has indicated the recommended personal protective equipment.
  • Page 9 2 Safety - general information 9 / 58 before the installation, check all the components for damage, dentures or visible defects; comply with the applicable regulations of law and OH&S regulations; comply with regulations regarding earthing of PV modules; NOTE Connect the frames of PV modules and other surfaces conducting direct current in a way that will allow for continuous conduction and earthing.
  • Page 10: Requirements For Great Britain

    10 / 58 2 Safety - general information SAFETY INSTRUCTION Keep the manual for the whole period of use of the device. SAFETY INSTRUCTION Install all the additional elements according to the Manufacturer’s manual. all works with the device must be performed by the qualified personnel; if the noise level of the surroundings exceeds 70dB, use hearing protectors;...
  • Page 11: Prohibited Activities

    2 Safety - general information 11 / 58 2.4 Prohibited activities The user and the qualified personnel must familiarize themselves with activities that are prohibited during the use of the device. The following actions are prohibited during the use of the device: DANGER Do not make any changes in the security settings.
  • Page 12: Work Site

    HINT In order to obtain the Corab training certificate in scope of inverters, contact Corab S.A. SAFETY INSTRUCTION All specialist works must be carried out only by the qualified personnel. Qualified personnel must have valid certificates and qualifications, know the construction and installation method of the...
  • Page 13: Scope Of Obligations Of Qualified Personnel

    All the elements of personal protective equipment are selected on an individual basis by the qualified personnel and the user. The Manufacturer of the Corab Encor 4-12k device does not provide any personal protective equip- ment. The selected personal protective equipment must be compliant with the applicable safety regulations and the conditions at the place of installation of the device.
  • Page 14: Hazards Due To Energy Accumulated In The Device

    14 / 58 2 Safety - general information install the wires in such a way that their length ensures proper functioning of the device and does not lead to dangerous situations (they must not be too long or too short); combine DC wires of the same potential into one wire harness;...
  • Page 15: Hazards Due To High Leakage Current

    2 Safety - general information 15 / 58 do not work with connectors of the inverter, DC wires and PV modules when the power is connected. 2.8.3 Hazards due to high leakage current There is a risk of health damage! During the use of the inverter, there is a high working current that might lead to health damage or property damage.
  • Page 16: Pictograms

    16 / 58 2 Safety - general information do not leave any assembly elements and tools after completed works with the device; use proper personal protective equipment; take particular care during performance of the works. 2.9 Pictograms Tables 2 and 3 and Figures 2 and 3 have presented the pictograms that can be found on the device and its packaging.
  • Page 17 2 Safety - general information 17 / 58 Fig. 2 Location of pictograms on the device.
  • Page 18 SPD - DC surge arrester AC Auxiliary Supply - additional power source Screen – screen of the device Corab Encor 4k * Name of the device. * Example of a model name Fig. 3 Location of pictograms on the packaging of the device.
  • Page 19: Rules Of Use

    3 Rules of use 3.1 Description of the device The Corab Encor 4-12k inverter is an electrical device. It features a transformer-free construction with the IP66 level of protection which allows for installation outside of buildings. The inverter: has been constructed with the MPPT technology (two independent MPP Trackers, a wide range of MPPT input voltages);...
  • Page 20: Danger Arising From Use Of The Inverter Against Its Intended Purpose

    20 / 58 3 Rules of use in explosion hazard zones; in places used to store flammable products; in rooms without ventilation; in a manner against its intended purpose; at locations exposed to direct sunlight. DANGER Use of the device against its intended purpose may lead to a situation hazardous to life and/or health.
  • Page 21: Transport And Storage

    QR code and contact details of the Manufacturer. 4.4 Transport The Corab Encor 4-12k can be transported with any means of transport. The vehicle must be adjusted to the weight and dimensions of the device. All the used tools, safety devices, transported machines must be fully opera- tional and complete.
  • Page 22: Transport Conditions

    22 / 58 4 Transport and storage The device is delivered to the first Customer by the Manufacturer. Components are prepared for transport in form of packages, cardboard boxes placed on pallets in piles (maximum 8 layers). The manufacturer shall not be liable for defects caused during the transport, if the transport is not carried out by the Manufacturer or upon their order.
  • Page 23: Construction

    5 Construction 23 / 58 5 Construction 5.1 Personnel and safety Preparation of components of the device for assembly and verification of their condition must be carried out only by the qualified personnel. The general safety rules have been described in chapter 2 of this operating manual. 5.1.1 Results of non-compliance Non-compliance with the requirements regarding personnel, safety rules and OH&S regulations may lead to: risk to health and/or life;...
  • Page 24: Anti-Islanding

    The built-in interface allows displaying data on a computer or a different monitoring device. For this purpose, the Corab Encor 4-12k has been equipped with: external Wi-Fi/LAN logger – a communication module that gathers information from the module, such as...
  • Page 25 5 Construction 25 / 58 data on its status, efficiency, etc. Connection of Pocket Wi-Fi enables visualization of data in the Corab One application within the scope of own consumption, import and export of electricity to and from the electrical grid;...
  • Page 26: Arrangement Of Terminals And Clamps

    AC output Wi-Fi/USB pressure equalizing valve * Two input pairs in Corab Encor 4k, 6k, 8k, 10k inverters. Three pairs of inputs - Corab Encor 12k ** The connector includes an electricity meter interface, RS-485, DRMs. Fig. 7 Arrangement of terminals on the device.
  • Page 27: Dc Input

    8000 6000 4000 2000 Temp. [°C] Fig. 9 Chart depicting the change in working parameters in Corab Encor 12k depending on temperature. 5.3.2 DC input Table 6 DC input parameters for all models of the device. Inverter parameter/model CE 4k...
  • Page 28: Ac Output

    28 / 58 5 Construction 5.3.3 AC output Table 7 AC output parameters for all models of the device. Inverter parameter/model CE 4k CE 6k CE 8k CE 10k CE 12k Nominal AC output power 4 000 6 000 8 000 10 000 12 000 Max apparent output...
  • Page 29 5 Construction 29 / 58 Failure mode – the system of the inverter detected an error. The diode is lit with solid red light. The inverter is not working.
  • Page 30: Assembly

    30 / 58 6 Assembly 6 Assembly 6.1 Personnel and safety Works connected with the assembly of the device and additional elements can be carried out only by the qualified personnel. The general safety rules have been described in chapter 2 of this manual. 6.1.1 Results of non-compliance Non-compliance with the requirements regarding personnel, safety rules and OH&S regulations may lead to: risk to health and/or life;...
  • Page 31: Tools Used For Assembly

    6 Assembly 31 / 58 SAFETY INSTRUCTION The customer is responsible for verifying the qualifications of the qualified personnel. 6.2.1 Tools for assembly The tools and accessories necessary for the assembly have been listed in Table 9. Table 9 List of tools and accessories needed for the assembly of the device. Tools Picture Crimper for RJ plugs...
  • Page 32: Additional Elements

    6 Assembly 6.3 Additional elements The Corab Encor 4-12k inverter is a device intended to power an electrical grid and PV modules. During the instal- lation, the wires and their layout must comply with applicable regulations of law. The parameters of individual additional elements have been presented in Appendix no. 2, next to the action that requires a particular element.
  • Page 33: Place Of Installation

    Fig. 11 The prohibited installation method. 6.4.1 Place of installation The Corab Encor 4-12k inverter can be mounted only in a place: with a ± 5° inclination angle to the vertical; that provides ventilation; that does not expose the device to direct sunlight;...
  • Page 34: Commissioning

    34 / 58 6 Assembly The wall that the device is mounted on must be made of brick or concrete. The manufacturer allows for other surfaces used for installation only when they are as sturdy and stable as a brick or concrete wall. NOTE Use additional reinforcement when mounting on a wall that is not sturdy enough (compared to a brick or concrete wall).
  • Page 35: Starting And Stopping The Device

    The working status of the inverter has been described in section 5.4 of this operating manual. See how easy it is to add a new installation with the dedicated application developed for our inverter - Corab One. You will find in on Google Play or App Store. More information: www.en.corab.pl/encor.
  • Page 36: Restart

    36 / 58 7 Starting and stopping the device 7.4 Restart Before restarting, verify whether: the surge arrester ensures proper surge protection; the DC input voltage is lower than or equal to the maximum DC voltage (DC ≤ max. DC); WARNING If the DC voltage is too high, it may lead to permanent damage of the device or losses which are not covered by the guarantee.
  • Page 37: Operation

    8 Operation 37 / 58 8 Operation 8.1 Personnel and safety Works connected with operation of the device must be carried out only by the qualified personnel. The general safety rules have been described in chapter 2 to this operating manual. 8.1.1 Results of non-compliance Non-compliance with the requirements regarding personnel, safety rules and OH&S regulations may lead to: risk to health and/or life;...
  • Page 38: Functions Diagram

    38 / 58 8 Operation 8.2.1 Functions diagram: Menu Status Gird DESCRIBED IN TABLE 10 Language English German Polish RRRR - MM - DD Time 00:00 Settings Safety Eksp. control Mode selection Turn off Meter Set value Mode selection Turn off Meter Networ settings P(freq)
  • Page 39 8 Operation 39 / 58 Network protection DESCRIBED SECTION 8.2.7 New password RS485 address Parallel Mode selection Turn on communication Turn off M/S Select Master DESCRIBED SECTION 8.2.8 Slave System limit 180000 W MPPT scanning Mode selection DESCRIBED SECTION 8.2.9 Enetrgy reset Reset Meter reset...
  • Page 40 40 / 58 8 Operation N line Contactor Charg. manager Trn off Manual Switch Smart save DESCRIBED SECTION 8.2.10 Modbus function Function selection DESCRIBED SECTION 8.2.11 Ogólna kontrola Soft limit DESCRIBED SECTION 8.2.12 Hard limit Test DESCRIBED SECTION 8.2.13 Loc. connection Mode selection Turn off Meter...
  • Page 41: Function: Status

    8 Operation 41 / 58 Information Product SN: Master: Manager: Internal code: 8.2.2 Function: Status The Status function is available on level 2. The function is comprised of two parameters (level 3), where: Grid – stands for the current electrical and yield data for alternating current; PV –...
  • Page 42: Function Time

    42 / 58 8 Operation 8.2.4 Function time This function allows changing the date and time for each individual digit separately. You can change the values of digits by pressing the function key. Each digit must be confirmed by long pressing the key 8.2.5 Function: settings This function is used to configure the settings of the inverter.
  • Page 43 8 Operation 43 / 58 of power to the set percentage value; Passive power – allows setting the parameter to Turn off, Overvoltage, Undervoltage, PF (q) and Q(u) mode according to the electrical grid requirements of a particular country. The Overvoltage and Undervoltage modes allow for entering the PF value;...
  • Page 44 44 / 58 8 Operation Network P(freq) PARAMETERS DESCRIBED IN TABLE 11 settings Soft start Turn on Turn off Soft start Passive power Mode selection Turn off Overvoltage PF value Undervoltage PF value PF(p) PARAMETERS DESCRIBED IN TABLE 11 Comm485 Constant power P(u) function PARAMETERS DESCRIBED IN TABLE 11...
  • Page 45 8 Operation 45 / 58 Table 11. Parameters for Network settings: P (freq), passive power – PF (p), passive power – Comm485, P(u) function. Designation Description Turn off Parameter turn-off. Meter turn-on. Meter Power in the frequency function. P (freq) Power in the over frequency function.
  • Page 46 46 / 58 8 Operation 8.2.7 Parameter: Network protection This parameter covers setting within ranges specified in Table 12. Table 12 Network protection parameters. Designation Description O/V Stage1 Threshold 1 to shut off in case of excessive voltage. U/V Stage1 Threshold 1 to shut off in case of insufficient voltage.
  • Page 47: Parameter: Parallel Com

    8 Operation 47 / 58 8.2.8 Parameter: Parallel com. This parameter covers the settings in modes specified in Table 13. Parallel com. Mode selection Turn on Turn off M/S Select Master Slave System limit 180000 W Table 13 Parameters for parallel communication. Designation Description Turn on/Turn off...
  • Page 48: Parameter: Smart Save

    8 Operation 48 / 58 8.2.10 Parameter: Smart save This parameter covers the settings in modes specified in Table 15. Contactor Charg. manager Turn off Manual Switch SmartSave PARAMETERS DESCRIBED IN TABLE 15 Table 15 Parameters for smart save. Designation Description Switch Contactor.
  • Page 49: Parameter: Test

    8 Operation 49 / 58 Table 17 Parameter: General control. Designation Description Soft protection that limits the inverter output to the set value in a situation in which Soft limit the connection with the meter is interrupted. No fault is reported. Hard protection that will disconnect the inverter within 5 s when the power limit of Hard limit the power supply/power is exceeded.
  • Page 50: Function: Information

    8.3 Failures If the red diode is lit on the control panel, it means that the Corab Encor 4-12k inverter is in failure mode. DANGER The Corab Encor 4-12k is an electrical device. All works with the device must be carried out by the qualified personnel.
  • Page 51 8 Operation 51 / 58 Error Error description Description BusVoltFault IE06 Busbar voltage error 1. Check whether the value of voltages of DC strings is compatible with the device; 2. Disconnect the PV circuit by using the DC load switch, reset the inverter;...
  • Page 52: Frequent Power Loss

    In such situations, clean the radiator according to section 9 of this operating manual. DANGER The Corab Encor 4-12k is an electrical device. All works with the device must be carried out by the qualified personnel. 8.4 Update...
  • Page 53 8 Operation 53 / 58 The update can be carried out by the qualified personnel. In order to do that, a USB stick is necessary. Carry out the update according to the following steps: 1. Obtain the update file. For this matter, contact the Manufacturer of the device; 2.
  • Page 54: Inspections And Cleaning

    5 minutes before you disconnect the DC terminal and the AC terminal; disconnect the device from AC and DC power. DANGER The Corab Encor 4-12k is an electrical device. All works with the device must be carried out by the qualified personnel. DANGER Working with a live device might lead to a hazardous situation that can be dangerous to one’s life...
  • Page 55: Semi-Annual Inspection

    9 Inspections and cleaning 55 / 58 9.3.1 Semi-annual inspection Perform the semi-annual inspection every 6 months starting from the date of installation of the device. During the semi-annual inspection: check the back fins for dust and dirt; check whether the function keys are legible and in proper condition; check the control panel for damage;...
  • Page 56: Disposal And Disassembly

    56 / 58 10 Disposal and disassembly 10 Disposal and disassembly 10.1 Personnel and safety Disposal and disassembly must be carried out only by the qualified personnel. The general safety rules have been described in chapter 2 to this operating manual. 10.1.1 Results of non-compliance Non-compliance with the requirements regarding personnel, safety rules and OH&S regulations may lead to: risk to health and/or life;...
  • Page 57: Appendices - List

    11 Appendices - list 57 / 58 11 Appendices - list Appendix no. 1 - Template of the declaration of conformity Appendix no. 2 - List of elements and assembly corab.pl en.corab.pl de.corab.pl...
  • Page 58 Corab S.A. ul. Michała Kajki 4, 10-547 Olsztyn, REGON: 510519084, NIP: 7390207757, entered in to the National Court Register manager by the District Court in Olsztyn, the 8th Commercial Division of the National Court Register under KRS no.: 0000950779. Share capital: PLN 1,184,000.00 fully paid-up.
  • Page 59 [name and surname, position/name and surname, authorization] Corab S.A. ul. Michała Kajki 4, 10-547 Olsztyn, REGON: 510519084, NIP: 7390207757 entered in to the register of entrepreneurs of the National Court Register managed by the District Court in Olsztyn, the 8th Commercial Division of the National Court Register under KRS number: 0000950779. Share capital: PLN 1,184,000.00 fully paid up.
  • Page 60 1 / 11 Appendix no. 2 Corab Encor 4-12k - List of elements and tools 2. Mounting bracket 3. Screw anchor Inverter Quantity: Quantity: Quantity: 4. Screw for screw anchor 5. Round washer Tools Quantity: Quantity: Crimper for RJ plugs...
  • Page 61 Appendix no. 2 2 / 11 Corab Encor 4-12k - Mounting the inverter on a wall Tools Follow these steps to install the bracket for the inverter: 1. Press the bracket of the inverter against the wall. 2. Mark 3 spots that you will use to drill holes (at least 60mm deep).
  • Page 62 3 / 11 Appendix no. 2 Corab Encor 4-12k - Mounting the inverter on a wall Tools 0,8-1,0 Nm 0° ± 5° ≥300mm ≥300mm ≥300mm ≥300mm The screw is actually screwed into the enclosure of the inverter. Remove it. Use it to connect the enclosure of the inverter with its bracket.
  • Page 63 Appendix no. 2 4 / 11 Corab Encor 4-12k - Connecting the inverter to install PV modules General information: NOTE Before starting the installation, read Chapter 2 of this operating manual. choose the fuse according to the applicable regulations of law and working conditions;...
  • Page 64 5 / 11 Appendix no. 2 Corab Encor 4-12k - Connecting the inverter - connecting the PV modules WARNING Creating positive or negative earthing for PV modules is prohibited. NOTE Connect the inverter to PV modules with the same technical parameters, working in the same condi- tions.
  • Page 65 Appendix no. 2 6 / 11 Corab Encor 4-12k - Connecting the inverter to install PV modules Tools Click! Unscrew Unscrew Click! Prepare the DC connector according to the instructions below: 1. Prepare a wire with a gauge of 2.5-4 mm2.
  • Page 66 7 / 11 Appendix no. 2 Corab Encor 4-12k - Connecting the inverter - connecting to the electrical grid Tools Outer cover 52.5mm 12mm 55mm Male connectot Casing Wire nut Tighten each srew to make sure that each wire is firmly fixed in place.
  • Page 67 Appendix no. 2 8 / 11 Corab Encor 4-12k - Connecting the inverter - connecting to the electrical grid HINT Prepare the AC connector according to the following instructions: 1. Check the voltage of the electrical grid; 2. Disconnect the AC power in the main switching station;...
  • Page 68 9 / 11 Appendix no. 2 Corab Encor 4-12k - Connecting the earthing (PE) Tools 1,2±0,1 Nm DANGER Using the device without connected earthing is prohibited. Prepare the PE connection according to the following instructions: 1. Prepare the earthing wire.
  • Page 69 Appendix no. 2 10 / 11 Corab Encor 4-12k - Connecting the RJ-45 connector Tools 1,5 ± 0,1 Nm 1,2 ± 0,1 Nm RJ-45 waterproof element of the RJ-45 connector plug HINT Prepare the RJ-45 connector according to the following instructions: 1.
  • Page 70 11 / 11 Appendix no. 2 Corab Encor 4-12k - PIN codes for RS-485, the meter and the DRM a. description of connector PINs / electricity meter DRM0 RY-OUT 485_A 485_B CODE RS-485 Corab Encor inverter RS-485 interface computer WARNING The meter must be autorized by the Manufacturer of the inverter.
  • Page 71 Notes...
  • Page 72 Corab S.A. ul. Michała Kajki 4, 10-547 Olsztyn, REGON: 510519084, NIP: 7390207757, entered in to the National Court Register manager by the District Court in Olsztyn, the 8th Commercial Division of the National Court Register under KRS no.: 0000950779. Share capital: PLN 1,184,000.00 fully paid-up.

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