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Summary of Contents for Steca StecaGrid 8 000+ 3ph
- Page 1 StecaGrid 8 000+ 3ph StecaGrid 10 000+ 3ph Installations- und Bedienungsanleitung Installation and operating instructions Notice d'installation et d'utilisation DE EN FR 744.378 | Z02 | 12.13 744378 | 12.13...
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Page 2: Table Of Contents
Contents Preface Identification General safety instructions Scope of delivery Proper usage About this manual Contents Target audience Markings Structure and function Casing Operating buttons Display Additional grounding connection Cooling Grid monitoring Data communication Installation Safety measures during installation Mounting the inverter Preparing the AC connection Preparing the DC connections Preparing an additional ground connection... -
Page 3: Preface
Preface Always symmetrical The advantage of three-phase feeding is that the produced solar capacity is always symmetrically distributed on all three power conductors to the public power grid. This is the case across the whole output range offered by these inverters. When designing a system, the laborious work involved in avoiding asymmetry of more than 4.6 kW through the correct selection of separate inverters is thus dispensed with. -
Page 4: Identification
Plug: Steca order no. 719.621 – Socket: Steca order no. 719.622 – • Safety sleeve for Multi-Contact MC4, Steca order no. 742.215 • AC plug for cable diameter of 15 ... 18 mm , Steca order no. 741.038 Tab. 1:... -
Page 5: General Safety Instructions
General safety instructions • This document is part of the product. • Install and use the device only after reading and understanding this document. • Always perform the measures described in this document in the sequence specified. • Keep this document in a safe place for the entire service life of the device. Pass the document on to subsequent owners and operators of the device. -
Page 6: Scope Of Delivery
• Installation and operating instructions • Data cable StecaGrid 8 000+ 3ph StecaGrid 10 000+ 3ph Installations- und Bedienungsanleitung Installation and operating instructions Notice d'installation et d'utilisation DE EN FR 744.378 | Z0x | 12.xx 744378 | 12.13 Fig. -
Page 7: About This Manual
About this manual Contents This manual contains all information required by a technical professional for setting up and operat- ing the inverter. Follow the instructions of the respective manufacturers when installing other com- ponents (e.g. solar modules, cables). Target audience Unless otherwise indicated, the target audiences of this manual are technical professionals and sys- tem operators. -
Page 8: Structure And Function
6.3.4 Abbreviations Abbreviation Description internal grid monitoring of the inverter (MSD = Mains monitoring with allocated Switching Devices) working point producing the most power (MPP = Maximum Power Point) MPP tracker controls the power of the connected module strings to match the MPP SELV safety low voltage (SELV = Safety Extra Low Voltage) -
Page 9: Operating Buttons
Operating buttons The operating buttons ( in Fig. 5) have the following functions: Function Button Action General Guided configuration process Press briefly • jumps up by one menu level • navigates 1 step back • discards any changes Press longer • jumps to the status display • jumps to the start of the guided (≥ 1 second) - Page 10 7.3.2 Information The information shown on the display is described below using illustrative examples. Status display The status display shows measurements as listed below: Measurement name Measurement with units Date Symbol non-confirmed status messages; more information on this is provided in Section 11, p.
- Page 11 Graphical yield (day, month, year) Daily, monthly and annual yields can be displayed graphically in a chart. Period for a single yield value (here: Day yield) y-axis: Yield in kWh – With an extra M: yield in MWh –...
- Page 12 7.3.3 Control elements The control elements shown on the display, which are used for performing settings in the inverter, are described below using illustrative examples. Selection list with check boxes Designation of the selection list Check boxes with names: Check boxes allow multiple selection –...
- Page 13 7.3.4 Other important display fields Reset maximum values dialog The Reset maximum values dialog allows the following stored maximum values to be reset to 0: • Maximum daily power • Maximum daily yield • Absolute maximum power Select measurements Selection of the measurements to be shown in the status display.
- Page 14 7.3.5 Service menu The following section describes the service menu items. Notice Risk of reduced yields. Inverter and grid parameters can be changed in the service menu. The service menu may only be used by professional personnel who can ensure that the changes do not contra- vene the applicable regulations and standards.
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Page 15: Additional Grounding Connection
Additional grounding connection If prescribed, the inverter can be grounded via an additional stud bolt. A grounding terminal for the stud bolt is optionally available; see Fig. 5, p. 47. Cooling The internal temperature control system prevents excessive operating temperatures. If the internal temperature of the inverter exceeds the (derating) limit then the amount of power taken from the solar modules is automatically adjusted. - Page 16 – Read inverter information using Steca service software – An optional RS485/USB adapter for connecting to the inverter is also available. The adapter is available from Steca. • External data loggers (optional), recommended by Steca for professional system monitoring: – StecaGrid Monitor – WEB‘log (Meteocontrol) –...
- Page 17 External data loggers Device Inverter StecaGrid Vision StecaGrid Monitor Solar-Log Web‘log Terminal Signal Plug RJ45 RJ45 COMBICON Terminal strip RJ12 strip 19 / 11 / 15 Data A 21 / 13 / 17 Data B – – – – –...
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Page 18: Installation
Installation Safety measures during installation Observe the following safety notes when performing the work described in Section Installation. Danger Risk of death by electrocution! • Only technical professionals may perform the work described in Section Installation. • Always disconnect all DC and AC cables as follows before starting work on the inverter: 1. -
Page 19: Mounting The Inverter
Mounting the inverter Fastening the mounting rail 1. Cover the upper ventilation holes of the inverter that lie be- low the mounting position (protection from drilling dust). 2. Fasten the mounting rail level on the mounting surface using at least 2 stainless steel screws, as shown in the illustrations at the left. -
Page 20: Preparing The Ac Connection
Preparing the AC connection 8.3.1 AC and DC connection diagram DC+ 1 DC+ 2 DC+ 3 DC+ 4 – – – – DC– 4 DC– 3 DC– 2 DC– 1 Fig. 7: Connection diagram of the inverter Photovoltaic generator 1 Inverter ... -
Page 21: Preparing The Dc Connections
8.3.5 Wiring the AC plug Danger Risk of death by electrocution! Observe the warning notes in Section 8.1, p. 57! Wire the AC plug provided as described in Fig. 9 and in p. 123 onwards. Phase 1 Phase 2 ... -
Page 22: Preparing The Data Connection Cable
Preparing the data connection cable If a data connection is required, use a standard RJ45 cable (patch cable) or construct an alterna- tive data connection cable (Section 7.7, p. 54). Connecting the inverter and switching on the AC power Danger Risk of death by electrocution! Observe the warning notes in Section 8.1, p. -
Page 23: Initial Commissioning Of The Inverter
Initial commissioning of the inverter 8.8.1 Function Conditions for starting initial commissioning Initial commissioning starts automatically when at least the AC connector has been installed and switched on as described previously. If initial commissioning is not fully completed then it starts again anew the next time the device is switched on. - Page 24 8.8.2 Operation Starting Initial commissioning √ The start page for initial commissioning is shown on the display. Press SET for a longer time. The next page is displayed. Selecting a language 1. Press to select a language. 2. Press SET briefly. The language is adopted. 3.
- Page 25 Setting the country and reactive power characteristic curve Note The country can only be set once! 1. Press to select a country. 2. Press SET briefly. 3. Press SET for a longer time. If a reactive power characteristic curve is not prescribed for the selected country then finish initial commission- ing (see Finishing initial commissioning).
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Page 26: Switching On The Dc Supply
Finishing initial commissioning 1. Press ESC to jump stepwise backwards and correct set- tings or Press and hold SET for a longer period of time to finish initial commissioning. 2. If SET was pressed for a longer time then the inverter restarts anew and synchronises itself with the grid. -
Page 27: Deinstalling The Inverter
8.10 Deinstalling the inverter Danger Risk of death by electrocution! Only technical professionals may perform the work described in Sec- tion Deinstalling the inverter. Observe the warning notes in Section 8.1, p. 57. Switching off the AC and DC supplies 1. -
Page 28: Operation
Operation Overview of operating functions The following overview describes the operating functions on the inverter display. For the sake of clarity, only the operating buttons and SET are illustrated. Status display Main menu Submenus Yield Output power (energy fed into Day yield grid) Reactive power... -
Page 29: General Operating Functions
General operating functions • Hidden content is shown using the and buttons. • Repeated button presses: If need to be pressed repeatedly, you can alternatively hold these buttons pressed for a long time. The rate of repetition increases the longer the button is held. • Pressing any button switches on the backlight of the display if this has previously automatically switched off. - Page 30 Editing selection lists containing check boxes √ A selection list with check boxes is displayed (fig. left). 1. Press to select a check box. 2. Press SET. The state of the check box changes from on to off and vice-versa (preset check boxes cannot be changed).
- Page 31 Calling up the service menu and editing the values Notice Risk of yield losses and contravention of regulations and standards. Inverter and grid parameters can be changed in the service menu. The service menu must therefore only be used by professional personnel who know the applicable regulations and standards. 1.
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Page 32: Self Test
Self test The self test is mandatory for operation of inverters in Italy. Function The prerequisites for performing the self test are as follows: • The country Italy was selected during initial commissioning. • The level of solar irradiation is high enough to ensure that the inverter can feed the grid. During the self test, the inverter checks its switch-off behaviour with regard to too high / too low grid voltage and frequency (4 test phases, duration of approx. - Page 33 When the self test has finished, proceed as follows: 7. Press several times until the status message Self test passed is displayed (fig. left). 8. Press SET to confirm the result of the self test. The sta- tus display appears. Status message Description Remedy...
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Page 34: Troubleshooting
Troubleshooting Faults are indicated by event messages as described below. The display flashes red. Tab. 10, p. 74 contains notes on troubleshooting and fault correction. Structure Event messages contain the following information: Symbol for the type of event message ... - Page 35 Event messages Event message Description Type Grid frequency The grid frequency at the inverter is less than the minimum permissible too low value. Due to legal requirements, the inverter switches automatically off while the error state is present. Contact your installer if this error occurs frequently. ...
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Page 36: Maintenance
Do not dispose of the device in the normal household waste. At the end of its service life, return the device to Steca Customer Service with a note stating Zur Entsorgung (For disposal). The device packaging consists of recyclable materials. -
Page 37: Technical Data
Technical data 14.1 Inverter StecaGrid 8000+ 3ph StecaGrid 10 000+ 3ph DC input side (PV generator connection) Number of DC inputs Maximum start voltage 845 V Maximum input voltage 845 V Minimum input voltage 350 V Startup input voltage 350 V Rated input voltage 600 V Minimum input voltage for rated... - Page 38 StecaGrid 8000+ 3ph StecaGrid 10 000+ 3ph Efficiency values (at 5%, 10%, 20%, 74.1%, 92.7%, 94.8%, 77.2%, 94.1%, 95.3%, 25%, 30%, 50%, 75%, 100% of the 95.5%, 95.7%, 96.2%, 95.7%, 95.9%, 96.2%, rated power) at maximum MPP voltage 95.8%, 95.3% 95.9%, 95.3% Efficiency reduction in the case of –0.0025%/V...
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Page 39: Ac Cables And Line Circuit Breakers
Note The requirements for the country-specific grid parameters may change at short notice. Contact the Steca Customer Service if the parameters specified below no longer correspond to the legally pre- scribed requirements in your country. See Section Contact, p. 80. -
Page 40: Exclusion Of Liability
Steca Elektronik GmbH; (5) any other cause that could not be foreseen or avoided with the technology used in manufacturing the product; (6) if the serial number and/or the type number has been manipulated or rendered unreadable;... -
Page 41: Contact
Steca Elektronik GmbH shall in no case be liable for indirect damage or loss of profit. Un- less otherwise specified by any applicable compulsory legislative regulations, Steca Elektronik GmbH shall also not be liable for any other damages other than those for which Steca Elektronik GmbH has hereby explicitly accepted liability. - Page 42 Appendix Appendix Zertifikate – Certificates – Certificats 744.378 | 12.13...
- Page 43 Appendix 744.378 | 12.13...
- Page 44 Appendix Montage – Installation – Montage AC-Stecker – AC plug – connecteur AC ...
- Page 45 Appendix + ∅ ± ...
- Page 46 Appendix Wechselrichter – Inverter – Onduleur 744.378 | 12.13...
- Page 47 744378...
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