Autarco OX Series Installation And Operation Manual

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Installation and Operation Manual

Solar Inverters OX series

IM-S2.OX-EN-V2.4

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Page 2 This manual is an integral part of the unit. Please read the manual carefully before installation, operation or maintenance. Keep this manual for future reference. Product information is subject to change without notice. All trademarks are recognized as the property of their respective owners. © Autarco Group B.V. All rights reserved. OX-series Inverters...
Page 3: Table Of Contents
Installation and operation manual Table of Contents 1 Introduction 1.1 Read this ﬁrst 1.2 Target Audience 1.3 Product versions covered by this document 2 Preparation 2.1 Safety instructions 2.2 Package contents 2.3 Internal DC switch 2.4 Explanations of symbols on inverter 3 Product information 3.1 Overview 3.2 Product identiﬁcation...
Page 4 8 Monitoring setup and system registration 8.1 Communication Ports 8.2 Monitoring Devices 8.3 Registration 9 Maintenance 9.1 Fan Maintenance 10 Recycling and Disposal 11 Troubleshooting 11.1 General 11.2 Alarm messages: internal components, system and design fault) 11.3 Alarm messages: grid errors 12 Product speciﬁcations OX-series Inverters...
Page 5: Introduction
Target Audience This manual is intended for anyone who uses Autarco OX series inverter. Before any further action, the operators must ﬁrst read all safety regulations and be aware of the potential danger to operate high-voltage devices. Operators must also have a complete understanding of this device’s features and functions.
Page 6: Product Versions Covered By This Document
5 Installation. 1.3 Product versions covered by this document The main purpose of this user manual is to provide instructions and detailed procedures for installing, operating, maintaining, and troubleshooting the OX series of Autarco inverters which includes the following models: S2.OX80000(S) ●...
Page 7: Preparation
DC isolator is disconnected. This is because photovoltaic (PV) arrays create electrical energy when exposed to light, and could cause a hazardous condition. WARNING! The OX series inverter must only be operated with PV arrays of protection class II, in accordance with IEC 61730, class A.
Page 8: Package Contents
(S4.MC4F/MC4M) 2.3 Internal DC switch Please verify whether your Autarco OX series inverter is equipped with internal DC switches. This switch can be found on the bottom of the inverter. If there isn’t an internal DC switch it is important to apply an external DC switch in order to completely disconnect the solar PV module strings from the inverter.
Page 9 Installation and operation manual ATTENTION This device SHALL NOT be disposed of in residential waste. Please go to chapter 10 Recycling and Disposal for proper treatments. CE MARK This equipment conforms to the basic requirements of the EU guideline governing low voltage and electromagnetic compatibility. M-S2-OX-EN-V2.4...
Page 10: Product Information
Product information 3.1 Overview Autarco OX series grid tied inverters are state of the art, high eﬃciency, robust and reliable grid tied inverters at the best price quality ratio available. They are easy to install and carry a standard 5 year product warranty. Our rigorous quality control and testing facilities guarantee Autarco inverters meet the highest quality standards possible.
Page 11: Product Overview
Installation and operation manual 3.3 Product overview Inverter cover LED light - POWER LED light - OPERATION LED light - ALARM Display Escape key Up key Down key Enter key DC switches DC inputs Meter AC output M-S2-OX-EN-V2.4...
Page 12 The inverters of the OX series do not all share the same dimensions. Therefore this manual divides speciﬁcations for the two variations, referred to as group 1 and group 2. Group 1 includes the models: OX80000(S) OX110000-HV(S) Group 2 includes the models:...
Page 13: Handling
Installation and operation manual Handling 4.1 Product handling Instructions for handling the inverter: 1. The red circles denote cut outs on the product package. Push the cut outs to form handles for moving the inverter. 2. Open the carton, then two people handle both sides of the inverter through the area denoted dotted line.
Page 14: Installation
Installation 5.1 Safety DANGER! Do not install the inverter near ﬂammable or explosive items. WARNING! The installation must be performed by qualiﬁed personnel and in compliance with national and local standards and regulations. This inverter will be connected to a high voltage DC power generator and AC grid. Inappropriate installation may also jeopardize the life span of the inverter.
Page 15: Mounting Instructions
Installation and operation manual Examples of correct and incorrect installations below. 5.3 Mounting instructions Two people are required to remove the inverter from the carton and install the inverter. Handles are formed into the heatsink for ease of handling the inverter. The inverter is suitable for outdoor and indoor installation.
Page 16: Mounting And Dimensions
In case of vertical mounting, examples of correct and incorrect installations below. 5.4 Mounting and dimensions The inverter can be mounted to the wall or metal array racking. The mounting holes should be consistent with the size of the bracket or the dimensions. Dimensions inverters group 1: OX80000(S) OX110000-HV(S)
Page 17: Safety Clearance
Installation and operation manual Dimensions inverters group 2: OX100000(S) OX110000(S) 5.5 Safety clearance CAUTION! Make sure heat sinks are out of reach. WARNING! When installing multiple inverters, make sure there is suﬃcient clearance between them. Staggered installation may be recommended. High temperatures may aﬀect performance.
Page 18: Mounting Procedure
5.6 Mounting procedure 5.6.1 Wall mounting 1. Mount the wall bracket onto the mounting wall with appropriate screws plugs 2. Lower the inverter onto the bracket OX-series Inverters...
Page 19: Rack Mounting
Installation and operation manual 3. Use screws in the packaging to ﬁx the bottom of the inverter to the mounting bracket 5.6.2 Rack mounting 1. Mount the wall bracket onto the mounting rack with appropriate screws plugs M-S2-OX-EN-V2.4...
Page 20 2. Lower the inverter onto the bracket 3. Use screws in the packaging to ﬁx the bottom of the inverter to the mounting bracket OX-series Inverters...
Page 21: Electrical Installation
Installation and operation manual Electrical installation DANGER! This inverter will be connected to a high voltage DC power generator and AC grid. The installation must be performed by qualiﬁed personnel and in compliance with national and local standards and regulations 6.1 Electrical Connections The top cover doesn’t need to be opened during DC electrical connection (MC4 connector).
Page 22 WARNING! No matter what kind of grounding connection is adopted, it is forbidden to connect the ground of the inverter with the lightning protection of the building, otherwise Autarco will not be responsible for any damage caused by lightning. If connecting to lightning protection is required by the regulations, then a PV-box with surge protection shall be added.
Page 23 Installation and operation manual IMPORTANT! B (insulation stripping length) is 2-3mm longer than A (OT cable terminal crimping area) 4. Insert the stripped wire into the OT terminal crimping area, and use the hydraulic clamp to crimp the terminal to the wire as shown in the ﬁgure below. IMPORTANT! After crimping the terminal to the wire, inspect the connection to ensure the terminal is solidly crimped to the wire.
Page 24: Ac Connection (Grid Connection)
IMPORTANT! In order to improve the corrosion resistance of the grounding terminal, we recommend that the external grounding terminal is coated with silica gel or zinc paint for protection after installation of the grounding cable. 6.3 AC Connection (grid connection) DANGER! Never connect or disconnect the connectors under load.
Page 25 150-185 mm cable. Refer to local electrical codes for wire sizing. NOTE: There is no need to connect N to AC side for the OX series three-phase inverter, the ground wire can be connected to the grounding hole on the right side of the inverter heat sink.
Page 26 shrinkable tube or insulating tape. When using the heat shrinkable tube, sleeve the heat shrinkable tube over the wire before crimping the OT terminal. NOTE: If chosing aluminum alloy cable, you must use a copper aluminum transfer terminal in order to avoid direct contact between the copper bar and the aluminum alloy cable.
Page 27 Installation and operation manual 6. Insert the cable through cap nut, waterproof bushing and AC terminal cover into the AC terminal and use a socket wrench to tighten the screws. The torque is 10~20Nm. Group 1: Wiring with Neutral (S2.OX80000(S)) Wiring without Neutral (S2.OX110000(S)-HV) Group 2: Wiring with Neutral (S2.OX100000(S) and S2.OX110000(S))
Page 28: Additional Protections
S2.OX110000-HV(S) 540V The Autarco inverter is equipped with an integrated Residual Current Protective Device (RCPD) and Residual Current Operated Monitor (RCOM). The RCOM will detect the leakage current and compare it with the expected value. If the leakage current exceeds the permitted range, the RCPD will disconnect the inverter from the AC load.
Page 29: Dc Connections
Please always use the MC4 connectors from the inverter box to connect strings to the inverter. DANGER! Never connect or disconnect the connectors under load. OX series inverters have four MPP trackers. The DC characteristics of each model is shown in the table below:...
Page 30: Inverter Commissioning Sequence
CAUTION! MC4 connectors are watertight IP67 but cannot be used permanently under water. Do not lay the MC4 connectors directly on the roof surface. If any tools or parts are used in the MC4 connector assembly other than those listed in the MC4 connector manual, neither safety nor compliance with the technical data can be guaranteed.
Page 31: Operation
Operation 7.1 LED indicator lights There are three LED status indicator lights in the front panel of OX series inverters. The left POWER light (red) indicates power status of the inverter. The middle OPERATION light (green) indicates the operation status. The right ALARM light (yellow) indicates the alarm status. The table below explains their meanings.
Page 32: Information
7.3 Information The OX series inverters main menu provides access to operational data and information. The information is displayed by selecting "Information" from the main menu. By default the inverter display will scroll through the information states below. You can also press UP or DOWN keys to manually scroll through.
Page 33 Installation and operation manual I_C %VALUE% A Shows the current (A) of the grid L3 Status: %VALUE% Shows the status of the inverter Power: %VALUE% W Shows current output power (W) of the inverter For any status other than “Generating” and “Initializing” please refer to chapter 10 for troubleshooting Rea_Power: %VALUE% Var Shows the real power generated...
Page 34: Settings
7.5 Advanced info WARNING! Access to this section of the menu is for Autarco qualiﬁed and accredited technicians only. Unauthorized access will void the product and system warranty. Screen can be scrolled through with UP/DOWN keys to see the information as per the table below.
Page 35: Advanced Settings
Warning Message Internal data of the inverter 7.6 Advanced Settings WARNING! Access to this section of the menu is for Autarco qualiﬁed and accredited technicians only. Unauthorized access will void the product warranty and any kWh Guarantee. Screen can be scrolled through with UP/DOWN keys to see the information as per the table below.
Page 36 Press ENTER key to save Press ESC key to return Reset the inverters total kWh output to zero. Using this function without previous approval from Autarco will Clear Energy void any existing kWh Guarantees. Change the password to enter Advanced Info and Advanced Settings. Enter the current password before setting a new password.
Page 37 Installation and operation manual Special settings can switch oﬀ functions temporarily for testing purposes. These tests should only be done by qualiﬁed Autarco personnel or trained installers when requested to do so. Submenu includes: Grid Filter Set Relay_Protect Set ILeak_Protect Set GROUND_Protect Set GRID INTF.02 Set...
Page 38 Used to create I/V curves for all DC inputs. I/V Curve Set I/V curve I/V curve scan OX-series Inverters...
Page 39: Temperature Derating
Installation and operation manual Temperature derating The output power of the inverter varies with ambient temperature, as shown in the ﬁgure below. External fan The inverter’s external fans switch on automatically when cooling via the heat sink is no longer suﬃcient.
Page 40: Monitoring Setup And System Registration
Monitoring setup and system registration 8.1 Communication Ports The OX inverters have the following communication ports: COM1: Green 4 pin connector for WiFi/Cellular datalogger. ● COM2 and COM3: Cable glands and cover with following connection points behind: ● 2 x RJ45 connections 1 x RS485 terminal block COM2 and COM3 are RJ-45 connectors suitable for connecting multiple inverters in daisy chain conﬁguration and connecting them to a WiFi-box, GPRS-box or other data logger.
Page 41: Monitoring Devices
Installation and operation manual 8.2 Monitoring Devices Product Port Communication Connection To: # Inverters per Parallel Method product Connection S2.WIFI-STICK-D* COM1 WiFi Router S2.WIFI-STICK COM1 WiFi Router S2.LAN-BOX COM2 & COM3 WiFi or LAN Router Cabled (RJ45) S2.ETHERNET-STICK COM1 Cabled (RJ45) Router S2.ZWAVE-STICK COM1...
Page 42: Registration
Please refer to related instructions of communication products for further installation instructions. Complete monitoring setup must be done via MyAutarco. 8.3 Registration If you plan to request a kWh Guarantee for your system, please ensure that the following is completed and recorded on site before you leave; Inverter and module serial numbers (unless a speciﬁc order was made for the system in ●...
Page 43: Maintenance
CAUTION! Never use any solvents, abrasives or corrosive materials to clean the inverter. The OX series inverters require general maintenance to be performed once per year. Impurities such as dust and dirt accumulation on the heat sink may negatively aﬀect the inverter’s ability to dissipate heat.
Page 44 8. Connect the electrical wire and reinstall the fan assembly. Restart the inverter. The fans must be tested at least once per year and cleaned if necessary by qualiﬁed personnel. OX-series Inverters...
Page 45: Recycling And Disposal
Installation and operation manual 10 Recycling and Disposal To comply with European Directive 2002/96/EC on waste Electrical and Electronic Equipment and its implementation as national law, electrical equipment that has reached the end of its life must be collected separately and returned to an approved recycling facility. Ignoring this EU Directive may have severe eﬀects on the environment and your health.
Page 46: Troubleshooting
11 Troubleshooting 11.1 General Display Action message Check that all switches are in the ON position (including internal DC switch if present) ● Check AC and DC power supply. If DC power is greater than 10W and string voltage greater ●...
Page 47 Installation and operation manual 12Power-FAULT 12V power supply fault 1.Remove all D C input, reconnect and restart inverter one by one. PV ISO-PRO 01/02 PV isolation protection 2.Identify which string cause the fault and check the isolation of the string. ILeak-PRO 01/02/03/04 Leakage current...
Page 48: Alarm Messages: Grid Errors
11.3 Alarm messages: grid errors Alarm Message Failure description Solution OV-G-V01/02/03/04 Over grid voltage 1.Resistant of A C cable is too high. Change bigger size grid cable. 2.Adjust the protection limit if it’s allowed by electrical company. UN-G-V01/02 Under grid voltage 1.
Page 49: Product Specifications
Installation and operation manual 12 Product speciﬁcations S2.OX80000S S2.OX100000S S2.OX110000S S2.OX110000S-HV Input Max. DC voltage (V) 1100 MPPT voltage range (V) 180-1000 Turn on voltage (V) Turn oﬀ voltage (V) Number of MPP trackers Max. DC current per MPPT (A) Number of DC connections per MPPT Total number of strings...
Page 50 Max. eﬃciency 98.70% 99.0% Euro eﬃciency 98.30% 98.5% S2.OX80000S S2.OX100000S S2.OX110000S S2.OX60000S-HV Safety protection Internal overvoltage protection DC Insulation monitoring Earth fault protection Grid monitoring According to VDE 0126-1-1, UL1741, G83/2, AS4777 Earth fault current monitoring According to VDE 0126-1-1, UL1741, G83/2, AS4777 DC current monitoring According to VDE 0126-1-1, UL1741, G83/2, AS4777 Islanding protection...

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