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Summary of Contents for SolarMax 8MT2
- Page 1 SolarMax MT-Serie 8MT2 / 10MT2 / 13MT2 / 13MT3 / 15MT2 / 15MT3 Gerätedokumentation Instruction manual Documentation d’appareil Documentación del dispositivo Documentazione dell’apparecchio...
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Page 2: Table Of Contents
Contents About this instruction manual Target group Where to keep this manual Symbols used 1.3.1 Symbols in the instruction manual 1.3.2 Symbols on the inverter Safety instructions Appropriate use Description Block circuit diagram External operating elements and dimensions Installation Transport and storage Siting Lightning protection Scope of delivery... - Page 3 10.2.2 Warnings 10.2.3 Failures 10.2.4 Error 10.2.5 Blockings Maintenance Disposal Specifications 13.1 Specifications 13.2 Efficiency curve SolarMax 15MT3 13.3 Temperature-dependent output reduction (power derating) 13.3.1 SM8MT2 & SM10MT2 13.3.2 SM13MT2 & SM13MT3 13.3.3 SM15MT2 & SM15MT3 13.4 Individual country settings Guarantee...
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Page 4: About This Instruction Manual
About this instruction manual This instruction manual contains a description of the SolarMax MT series string inverters. It furthermore tells you how to install, commission, and operate the inverters. Familiarise yourself with the inverter functions and characteristics before you begin the installation work. -
Page 5: Symbols On The Inverter
Appropriate use The SolarMax MT series string inverters are designed exclusively to convert the direct current generated by PV modules into grid-compliant alternating current. Any other use is contrary to the purpose for which the inverters were designed. Sputnik Engineering accepts no liability for damages resulting from using inverters for purposes other than this. -
Page 6: Description
PV generator, the inverter disconnects from the grid and shuts down. The two (SolarMax 8MT2 / 10MT2 / 13MT2 / 15MT2) and/or three (SolarMax 13MT3 / 15MT3) independent MT series MPP trackers adapt to a changed energy supply from the PV gen- erator with the help of two digital signal processors (DSP) within seconds. -
Page 7: Block Circuit Diagram
Block circuit diagram AC Measurement RS485/ Ethernet Fan Control Status-Relay Inverter Control Booster Control... -
Page 8: External Operating Elements And Dimensions
External operating elements and dimensions Front view 550mm 750mm Graphics display with status LED and three buttons Side view left 200mm Fan cover (air intake) DC disconnector Q1 Connection option for external protective conductor Side view right Fan cover (air outlet) -
Page 9: Installation
The installation underground must be firm and non-combustible. CAUTION The casing of the SolarMax MT series inverter complies with protection class IP65. Thus, it can be installed outdoors, but the stated IP protection is only ensured if the included AC connector, an appropriate DC connector (MultiContact series 4) and the recommended RJ45 communications connectors are used. -
Page 10: Lightning Protection
CAUTION The inverter must be installed in a location protected from rain and snow. When installing several inverters next to each other, you must observe a distance of 0.5 metres between the inverters. This distance prevents the mutual thermal influence due to the hot exhaust air of the ventilation systems. The ventilation inlet and the ventilation outlet must never be covered. -
Page 11: Scope Of Delivery
Scope of delivery Inverter AC connector Installation plate for wall installation Instruction manual and quick guide Accessory kit (installation material for wall installation and earth connection) Installation The inverter can be installed easily using the included installation plate and installation material on a level installation base. -
Page 12: Electrical Connection
Installation plate MT series Recesses for lock with splint Hole Ø 10mm for padlock (against theft) Electrical connection The MT series inverters have the following connection options:... -
Page 13: Integrated Overvoltage Protection
SM10MT2 / SM13MT3 / Connection SM8MT2 SM13MT2 / SM15MT3 SM15MT2 1 x 2 / 1 x 1 1 - 3 2 x 2 strings MC4 3 x 2 strings MC4 strings MC4 External protective 2 x thread M6 conductor Status signalling M12 plug with potential-free switch contact contact 5-pole Amphenol plug-in connector... -
Page 14: Ac Connection
4.6.2 AC connection CAUTION The MT series inverters must be connected to a mains connection point meeting at least the requirements of overvoltage category 3. Mains fuses and cable cross-sections The following table contains information about the recommended mains fuses and the minimum required line cross-sections necessary for the AC feed line: SM13MT2/ SM15MT2/... - Page 15 The AC connector must be connected using a flexible cable as described in EN 60309-2/VDE 0623. The permissible cable diameter is 11 to 20mm. Cable strands with a maximum cross-section of 6mm² can be connected. 1. If the cable diameter is > 16mm, remove the blue inlay from the retainer ring.
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Page 16: Dc Connection
4.6.3 DC connection The MT series inverters are quipped with 2 (SolarMax 8MT2 /10MT2 / 13MT2 / 15MT2) and/or 3 (SolarMax 13MT3 / 15MT3) MPP trackers. Each tracker has two plus and minus poles for the connection of two strings per tracker input. One string can be connected to tracker 2 of SM8MT2. - Page 17 MPP Tracker 1 MPP Tracker 2 MPP Tracker 3 correct connection! CAUTION Use only connectors from the MC4 series made by MultiContact for connecting the DC feed lines to the inverter. Due to the transformerless circuit type of the MT series inverters, the plus or minus pole of the PV generator must not be earthed under any circumstances.
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Page 18: Status Signalling Contact
The status signalling contact is located in the connection area of the inverter, see 4.6 Electrical connection; page 71. A suitable M12 mating connector to connect to the status signalling contact can be ordered from the SolarMax Service Centre. Remote retrieval of the operating status can be configured, see section “Status relay”;... -
Page 19: Communications Sockets
Neutral conductor N 4.6.6 Communications sockets The SolarMax MT series inverters have two RJ45 sockets for data communication within a MaxComm network: The left-hand RJ45 socket is only an RS485 interface. The RS485 interface is used for connections to other SolarMax inverters or accessories with MaxComm interface. -
Page 20: External Protective Conductor
M6 connections: see 4.6 Electrical connection; page 71 External earth leakage circuit breaker (ELCB) The SolarMax MT series inverters have an integrated AC/DC sensitive leakage current sensor. This sensor is able to distinguish between the operational capacitive stray cur- rents (caused by capacities of the PV modules to the earth) and leakage currents (caused by touching a pole of the PV generator). -
Page 21: Commissioning
Commissioning Switching on and off All SolarMax inverters work completely automatically. When the PV generator supplies enough power, the inverter switches on and then starts mains feed operation. At night, or when the DC end is shut down, the inverter is disconnected from the grid. Operating the inverter and the ability to communicate via the interfaces are only possible when the inverter is switched on. -
Page 22: Initial Start-Up (Initial Setup)
You can restart initial start-up on the graphics display by pressing at any time. Thoroughly read the manual before starting initial start-up. Contact your grid op- erator or the SolarMax Service Centre if you have any doubt regarding the settings you must select. Procedure 1. - Page 23 Setting Description Mid voltage The inverter is connected to the medium-voltage mains. Low voltage The inverter is connected to the low-voltage mains. – Press to confirm your entry. When selecting “Low voltage”, the “Plant type” menu (for country setting “Germany”) or the “Standard” menu (for country setting “Italy”) is displayed (step 4).
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Page 24: Operation
6. In the “cosφ(P)” menu, select the specification for the reactive power feed-in required by the grid operator: Setting Description Standardised reactive power feed-in No reactive power feed-in (cos φ=1) Inactive – Press to confirm your entry. 7. In the “Validation” menu, check your entries. You can complete initial start-up after- wards by pressing . -
Page 25: Menu Structure
Menu button symbols With the help of the symbols shown here you can navigate the various menus and func- tions visible in the display. The current button function may change from one menu to the next and corresponds to the symbol appearing directly over the button in each case: Symbol Function Scroll up, increase number, or next element... - Page 26 The following schematic overview shows the available menu items: Measured values Statistics Overview Days Months Years Total Main menu Reset Con guration Settings Language Auto Test * Time/date Device address Ethernet Information Netmask TCP port Status relay Status relay delay . * Only for country setting “Italy”.
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Page 27: Overview
6.3.2 Overview If none of the three buttons is pushed for 120 seconds, the display returns automatically to the Overview menu showing the three most important values as well as the current operating status. 6.3.3 Measured values The current inverter measured values can be accessed in the “Measured values” menu. NOTE The inverter measured values are not suitable for billing purposes or calculating ef- ficiency. -
Page 28: Statistics
Use the arrow buttons to navigate the measured values. Press the left button to return to the Main menu. 6.3.4 Statistics In the Statistics menu you can access the inverter’s internal data logger. The accessible statistics are for the most recent 31 days, 12 months or 10 years. The “Total” sub-menu contains the accumulated yield and operating data since initial start-up of the inverter. - Page 29 Daily statistics This menu provides access to the data from the most recent 31 days. Use the buttons to select a daily statistic. Press the left button to return to the Statistics menu. Monthly statistics This menu provides access to the data from the most recent 12 months. Use the buttons to select a monthly statistic.
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Page 30: Configuration
Total This menu lists the total yield and the total number of operating hours of the inverter since initial start-up. Press the left button to return to the Statistics menu. Reset In this menu you can delete all the entries in the Statistics menu. NOTE Once deleted this data is irretrievably lost! Press the... - Page 31 The required “MT series parameter configuration using MaxTalk 2 Pro” instruction manual can be found on our website www.solarmax.com (Downloads area). You can request MaxTalk 2 Pro from the SolarMax Service Centre. The contact details can be found overleaf.
- Page 32 Parameter Description Unit Monit. ext. input The status signalling contact is configured for monitoring an external Inactive/on input. Restart delay Delay time before grid reconnection upon previous failure-related grid disconnection. Pac progression Maximum increase of the effective power during grid reconnection %/min upon previous failure-related grid disconnection.
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Page 33: Settings
6.3.6 Settings This menu can be used to set different communication parameters and monitoring func- tions. All settings can also be implemented with MaxTalk. Parameter Description Language Selection of the display language (German, English, French, Italian, or Spanish). The display language can be selected independently of the selected specific country settings. -
Page 34: Information
The monitoring electronics are supplied by the PV generator, in other words during the night and when the DC end is switched off, the status signalling contact is open. Implementing the settings Use the button to select a parameter. Press the button to select a highlighted parameter and switch into the editing mode to change it. -
Page 35: Auto Test According To Dk 5940
Auto Test according to DK 5940 During mains operation, the Auto Test procedure according to DK 5940 (only for coun- try setting “Italy”) varies the trigger threshold for AC voltage and frequency monitoring linearly with a ramp of ≤ 0.05Hz/s and/or ≤ 0.05Vn/s (Vn = 230Vac). This way, at some point during the test, the threshold will coincide with the current measured value, leading to triggering of the monitoring intervention. - Page 36 3. The trigger value, the trigger time, the current value, and the default value of voltage monitoring (Vac min) are displayed. Maximum frequency 1. The set frequency monitoring threshold f max is displayed. 2. The threshold value is decremented linearly until it reaches the current mains fre- quency value and grid monitoring is triggered.
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Page 37: Data Communication 96 En
The SolarMax web portal is the ideal complement to the MaxWeb xp data logger. When using the SolarMax web portal, you can access the data of your PV plant from anywhere on the Internet. The SolarMax web portal provides a wide variety of graphic and chart... -
Page 38: Configuration Of The Data Communication Interfaces
1023 since this range is reserved for predefined applications (referred to as “well known services”). NOTE You will find more details about data communication in the technical information “MaxComm network”. This document can be downloaded from our web- site at: www.solarmax.com; downloads/data communication/MaxComm. -
Page 39: Options
Options Accessory components Below you will find a list of other available accessory components. MaxMeteo Unit recording irradiation data and cell temperature of PV modules MaxCount Unit recording meter figures with S0 interface MaxDisplay Interface for a large display to visualise PV plant data Operating status Status messages and status LED The status message in the graphics display describes the current operating status of the... -
Page 40: Booting
Booting Status message Description Irradiance too low The solar irradiation or rather the available output is too low for mains operation. Startup… The inverter checks the internal hardware and software components before connecting to the grid. Restart delay The inverter has disconnected itself from the grid and is delaying re-connection to the grid. -
Page 41: Troubleshooting 100
10 Troubleshooting Sputnik Engineering delivers only SolarMax inverters which have stood up to our ex- tensive quality testing regime. Moreover, each inverter is subjected to several hours of endurance testing under full-load conditions. If, despite this, your PV plant suffers a failure or an error we recommend these proce-... -
Page 42: Solarmax Service Centre 101
10.1 SolarMax Service Centre If you have technical questions or difficulties, our Service Centre would be happy to help you. If you have questions about central inverter failures, please provide us with the fol- lowing details: Device type Serial number S/N Installation location Information about the failure you are experiencing (status message, etc.) -
Page 43: Diagnosis & Measures 102
10.2 Diagnosis & measures The following tables describe possible measures for remedying failures. If the measures suggested do not correct the failure, please contact the SolarMax Service Centre im- mediately. 10.2.1 General troubleshooting Cause Steps The display remains blank DC disconnector Q1 is Switch on DC disconnector switched off. -
Page 44: 10.2.3 Failures
Cause Measure RTC error The RTC (real-time clock) in If this problem happens fre- the inverter is malfunctioning, quently, contact the SolarMax the date and time have been Service Centre. Set the time reset. and date correctly. Flash error A flash error has occurred. -
Page 45: 10.2.4 Error
10.2.4 Error Status message Cause Measure Device error (+ error code) An internal error has occurred Check the two-digit error code in the inverter. displayed and contact the SolarMax Service Centre. -
Page 46: 10.2.5 Blockings
11 Maintenance SolarMax inverters are basically maintenance-free. However, in order to ensure perfect operation over the course of several years, in addition to regular controls of the operating and yield data via the inverter display or remote monitoring, we also recommend perform- ing the simple maintenance work described below at regular intervals. -
Page 47: Specifications
13 Specifications 13.1 Specifications 8MT2 10MT2 13MT2 15MT2 13MT3 15MT3 Input MPP voltage range 250… 250… 250… 250… 250… 250… values 750V 750V 750V 750V 750V 750V Minimum voltage for 300V 290V 370V 430V 280V 320V rated output power Maximum DC voltage... -
Page 48: Efficiency Curve Solarmax 15Mt3
(W x H x D) Warranty Standard 5 years / extension to 10, 15, 20, or 25 years possible available as of July 2012) only SM8MT2 and SM10MT2 (in preparation) Portugal 13.2 Efficiency curve SolarMax 15MT3 Standardised output Pac/Pac max [%]... -
Page 49: Temperature-Dependent Output Reduction (Power Derating)
13.3 Temperature-dependent output reduction (power derating) 13.3.1 SM8MT2 & SM10MT2 Temperature-dependent output reduction SM8MT2 & SM10MT2 Ambient temperature [°C] 13.3.2 SM13MT2 & SM13MT3 Temperature-dependent power reduction SM10MT2 Ambient temperature [°C]... -
Page 50: Sm15Mt2 & Sm15Mt3
13.3.3 SM15MT2 & SM15MT3 Temperature-dependent power reduction SM15MT2 & SM15MT3 Ambient temperature [°C]... -
Page 51: Individual Country Settings
13.4 Individual country settings Parameter Unit Germany Spain Medium ≤ 13.8kVA > 13.8kVA > 30kVA 0126-1-1 voltage Vac min 1 t Vac min 1 2000 1500 Vac max 1 t Vac max 1 1500 Vac min 2 t Vac min 2 1500 Vac max 2 t Vac max 2... - Page 52 Parameter Unit Germany Spain Medium ≤ 13.8kVA > 13.8kVA > 30kVA 0126-1-1 voltage Pac max SM10MT2 10000 10000 10000 10000 10000 10000 Pac max SM13MT2/3 13000 13000 13000 13000 13000 13000 Pac max SM15MT2/3 15000 15000 15000 15000 15000 15000 Iac max SM8MT2 Iac max SM10MT2 Iac max SM13MT2/3...
- Page 53 Parameter Unit Italy France Belgium Czech Republic Guida Con- Medium CEI 0-21 nessioni voltage - Vac Lock On/Off - Vac Lock-In - Vac Lock-Out On/Off - K factor S max SM8MT2 8000 8000 8000 8000 8000 8000 S max SM10MT2 10000 10000 10000...
- Page 54 Parameter Unit Greece Greece Portugal Great Switzerland Bulgaria Britain Mainland Islands - t MC monitoring Island Detection On/Off Soft Start Pac progression %/min P(f)-Mode On/Off - f start - f stop - Reduction %/Hz - Re-increase %/min Q-Mode - Vac Lock On/Off - Vac Lock-In - Vac Lock-Out...
- Page 55 Parameter Unit Romania Hungary Turkey China Israel Australia Iac mean max 1000 1000 1000 0.5% of 0.5% of 0.5% of Iac max Iac max Iac max Restart delay Mains check On/Off - Vac MC max - Vac MC min - f MC max 50.2 50.2 50.2...
- Page 56 Parameter Unit Rest of the world t f max 1 f min 2 t f min 2 f max 2 t f max 2 df/dt max Hz/s Ierr max Iac mean max 1000 Restart delay Mains check On/Off On - Vac MC max - Vac MC min - f MC max - f MC min...
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Page 57: Guarantee
14 Guarantee Sputnik Engineering AG (hereafter: Sputnik) guarantees full function and lack of defects of its tech- nical devices for a guarantee period specifically defined for each type of device. This guarantee period starts to run at the moment the goods leave Sputnik’s factory. Exceptionally, in case of sale of goods to natural persons for non-commercial / private purposes, the guarantee period starts to run only from the time of delivery to the end-buyer. - Page 58 In a guarantee case, the buyer may require an appropriate reduction of the price or have the contract rescinded: if the buyer is entitled to neither repair nor replacement, or if Sputnik has not completed the remedy within a reasonable time, or if Sputnik has not completed the remedy without significant inconvenience to the buyer.
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Page 60: Declaration Of Conformity
Certificate Declaration of conformity EC Declaration of Conformity for grid-connected photovoltaic inverters SolarMax 8MT2 SolarMax 10MT / 10MT2 SolarMax 13MT / 13MT2 / 13MT3 SolarMax 15MT / 15MT2 / 15MT3 made by Sputnik Engineering AG Höheweg 85 CH-2502 Biel/Bienne directives:... - Page 61 Country-specific certification and conformities can be found and downloaded at www.solarmax.com Les certificats et déclarations de conformité spécifiques à chaque pays peuvent être consultés dans la zone de téléchargement, à l‘adresse www.solarmax.com Certificados y documentos de conformidad específicos del país pueden verse en la zona de descarga en www.solarmax.com I certificati e le dichiarazioni di conformità...
- Page 62 SolarMax Service Center Deutschland +49 180 276 5 276 Schweiz / Svizzera / Suisse +41 32 346 56 06 France +33 4 72 79 17 97 Italia +39 0362 312 279 España +34 902 160 626 Benelux +32 2 535 77 32 Česká...
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