Fronius Argeno Operating Instructions Manual
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Fronius Argeno Operating Instructions Manual

Fronius Argeno Operating Instructions Manual

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Operating
Instructions
Fronius Argeno
EN-US
Operating instructions
42,0426,0547,EA
002-13032025

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Summary of Contents for Fronius Argeno

  • Page 1 Operating Instructions Fronius Argeno EN-US Operating instructions 42,0426,0547,EA 002-13032025...

  • Page 3: Table Of Contents

    Table of contents Safety rules Explanation of Safety Instructions General Environmental conditions Qualified personnel Safety measures at the installation site Data on noise emission values EMC measures Data backup Copyright Equipment grounding (GND) General information Product description Description of the device AC Daisy Chain Protection of people and equipment Safety...
  • Page 4 Connecting the inverter to the public grid – PEN conductor Connecting the inverter to the public grid – Daisy Chain Connecting the PV cable to the inverter Safety General information about PV modules Permitted cables Recommended default configuration Installing PV plugs Connecting PV cables Establishing equipotential bonding Establishing equipotential bonding...
  • Page 5 General Maintenance Cleaning Cleaning the fan drawer Status codes and remedy Status codes Technical data Argeno 125 Explanation of footnotes Relevant Standards and Directives CE Conformity Marking Mains failure Service, warranty terms and conditions, and disposal Fronius SOS Fronius manufacturer's warranty...

  • Page 6: Safety Rules

    Safety rules Explanation of DANGER! Safety Instruc- tions Indicates an immediate danger. ▶ Death or serious injury may result if appropriate precautions are not taken. WARNING! Indicates a possibly dangerous situation. ▶ Death or serious injury may result if appropriate precautions are not taken. CAUTION! Indicates a situation where damage or injury could occur.

  • Page 7: Environmental Conditions

    For the location of the safety and danger notices on the device, refer to the chapter headed "Information on the device" in the operating instructions for your device. Any equipment malfunctions which impair safety must be remedied before the device is turned on. Environmental Operation or storage of the device outside the stipulated area will be deemed as conditions...

  • Page 8: Data Backup

    Data backup With regard to data security, the user is responsible for: backing up any changes made to the factory settings saving and storing personal settings Copyright Copyright of these operating instructions remains with the manufacturer. Text and illustrations were accurate at the time of printing, subject to change. We are grateful for suggestions for improvement and information on any discrep- ancies in the operating instructions.

  • Page 9: General Information

    General information...

  • Page 11: Product Description

    With the "AC Daisy Chain" inverter variant, the AC lead can be routed directly from the inverter to another inverter. This makes it possible to quickly connect a maximum of two Argeno inverters to each other. The optionally available Daisy Chain input plate and type 2 AC SPDs are required for this variant.

  • Page 12: Protection Of People And Equipment

    Protection of people and equipment Safety WARNING! Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property. ▶ All the work and functions described in this document must only be car- ried out by trained and qualified personnel.
  • Page 13 Safety symbols and text: DANGER: 1100V GEFAHR: 1100V WARNING: Risk of Electic Shock Both AC and DC voltage sources are terminated inside this equip- ment. The DC conductors of this photovoltaic system are ungroun- ded and may be energized when the photovoltaic array is exposed to light.

  • Page 14: Inv Off

    If the RCMU is not working properly, the device will be im- mediately disconnected from the public grid at all poles. AFCI – arc fault A Fronius Argeno version is available with AFCI (arc fault circuit interrupter) arc circuit inter- detection (item number: 4,210,471).

  • Page 15: Safe State

    IMPORTANT! Fronius will not bear any costs which may arise due to a detected electric arc and its consequences. Fronius accepts no liability for damage which may occur des- pite the integrated arc fault circuit interrupter/interruption (e.g., due to a parallel arc).

  • Page 16: Utilization In Accordance With "Intended Purpose

    The following circumstances are considered to be reasonably foreseeable misuse: Any use that is not the intended use or goes beyond the intended use. Alternations to the inverter are not expressly recommended by Fronius. Installation of components that are not expressly recommended or sold by Fronius.

  • Page 17: Functional Principle

    Functional principle Operating prin- The inverter is fully automatic. Starting at sunrise, as soon as the PV modules are ciple generating enough energy, the inverter starts checking the PV system (insulation measurement) and the grid (mains voltage and mains frequency). If all values are within the normative framework, the system is automatically connected to the grid and grid power feed operation begins.

  • Page 18: Operating Controls And Connections

    Operating controls and connections Operating ele- ments and dis- plays DC disconnectors and DC connections Cable glands for data communication Cable glands for AC Connection bolt for grounding Housing cover Support foot with handle (left/right) Fan drawer (left/right) LED status indicators For further information on the LED status indicators, see But-...

  • Page 19: Pv Connections

    PV connections Data communic- The data communication area is loc- ation area in in- ated in the middle of the inverter. verter Data communic- RS485 interface ation area Reserved for future functions. RS485 switch INV OFF Connection for external 24 V (+/-20%) / 1 A (min. 15 mA) grid protection compon- ent, see Connecting INV OFF...

  • Page 20: Button Functions And Led Status Indicators

    LAN1 and 2 Ethernet connection for data communication (e.g., WLAN router, home network, or for commissioning with a laptop, see chapter Establishing a LAN connection via a network on page 47). LAN direct Ethernet connection for commissioning with static IP (direct PC connec- tion), see Establishing a local LAN connection on page 47.
  • Page 21 LED status indicators The inverter is performing an update. Flash blue...

  • Page 23: Installation And Startup

    Installation and Startup...

  • Page 25: General

    General System compon- All components installed in the photovoltaic system must be compatible and ent compatibility have the necessary configuration options. The installed components must not re- strict or negatively influence the functioning of the photovoltaic system. NOTE! Risk due to components in the photovoltaic system that are not compatible and/or have limited compatibility.

  • Page 26: Installation Location And Position

    Installation location and position Choosing the DANGER! location of the inverter Danger due to flammable or explosive materials in the vicinity of the device. Fire poses a risk of serious or fatal injury. ▶ Do not install the device in potentially explosive atmospheres or in the vi- cinity of highly flammable materials.
  • Page 27 When installing the inverter in a switch cabinet or similar closed environment, ensure adequate heat dissipation by forced-air ventilation. When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between all sides of the inverter and the ventilation and building openings.

  • Page 28: Installation Position Of The Inverter

    Do not install the inverter in: Areas where there is an increased risk of accidents from farm animals (horses, cattle, sheep, pigs, etc.) Stables or adjoining areas Storage areas for hay, straw, chaff, animal feed, fertilizers, etc. The inverter is designed to be dust-proof (IP 66). In areas of high dust accumulation, dust deposits may collect on the cool- ing surfaces, and thus impair the thermal performance.

  • Page 29: Installing The Inverter

    Installing the inverter Selecting the WARNING! mounting mater- Using unsuitable mounting material can cause the device to fall. This can result in personal injury. ▶ Only use mounting material suitable for the mounting surface. Only use the supplied mounting material for masonry and concrete. ▶...

  • Page 30: Connecting The Inverter To The Public Grid (Ac Side)

    Connecting the inverter to the public grid (AC side) Monitoring the IMPORTANT! To provide the best possible grid monitoring, the resistance in the grid leads to the mains connections should be as low as possible. AC connection Singlecore cable gland version area 5x M40 cable glands Diameter: 10-28 mm...

  • Page 31: Connecting Aluminum Cables

    Power category Connection version Cable cross-section Singlecore 50-240 mm Multicore Argeno 125 50-240 mm Daisy Chain 50-240 mm Maximum altern- If an external residual current circuit breaker is required due to installation regu- ating current lations, a type A residual current circuit breaker must be used.

  • Page 32: Safety

    RCD menu item must be enabled. If one of these types is used, it must have a protective rating of at least 1,250 NOTE! The inverter may be used with a maximum 500 A automatic circuit breaker. Safety WARNING! Danger from mains voltage and DC voltage from PV modules. An electric shock can be fatal.

  • Page 33: Connecting The Inverter To The Public Grid - Singlecore

    Connecting the The phases should be connected in the proper order: L1, L2, L3, N, and PE. inverter to the public grid – Singlecore CAUTION! Short circuits may damage the inverter. AC leads that are not installed and routed correctly can result in damage to the device.

  • Page 34: Connecting The Inverter To The Public Grid - Pen Conductor

    Connecting the The connection process corresponds to that of the Singlecore version, see Con- inverter to the necting the inverter to the public grid – Singlecore on page 33. public grid – PEN conductor CAUTION! Short circuits may damage the inverter. AC leads that are not installed and routed correctly can result in damage to the device.
  • Page 35 CAUTION! Short circuits may damage the inverter. AC leads that are not installed and routed correctly can result in damage to the device. ▶ Insulate bare parts of the connection cable and cable lug, e.g., using shrink sleeve. ▶ Connect the AC leads with as much distance between them as possible. The L1 / L2 / L3 / N leads are connec- ted to the front and rear of the busbar in each case.

  • Page 36: Connecting The Pv Cable To The Inverter

    Connecting the PV cable to the inverter Safety DANGER! DC voltage is present at the exposed ends of the DC leads when there is irra- diation on the PV modules. Touching the live connections can result in severe injury or death. ▶...

  • Page 37: General Information About Pv Modules

    Solar module strings must not be grounded. Permitted cables Select cable cross-sections of sufficient size depending on the device type. Power category Adapter Cable cross-section Phoenix/PV-C3F-S 2.5-6 (+) 1,100 V/35 2.5-6 mm² (see data sheet of Argeno 125 the plug) Phoenix/PV-C3M-S 2.5-6 (-) 1,100 V/35...

  • Page 38: Recommended Default Configuration

    Recommended All DC inputs disconnected default configur- ation IMPORTANT! String fuses may be required depending on the selected PV mod- ules. Observe the information provided by the manufacturer of the module. Two strings on one MPP tracker Restriction: DC + DC - Max.
  • Page 39 Two strings via Y cables and one string directly on one MPP tracker Restriction: DC + DC - Max. 10 A per string on the Y cable / Max. 30 A on the MPP tracker Required accessories: Min. two Y cables (one PV+ / PV- each) for a string PD-ED6/Y-120 (1+/2-) PD-ED6/Y-120 (2+/1-)

  • Page 40: Installing Pv Plugs

    One parallel string via two MPP trackers and one separated string each per MPP tracker Restriction: DC + DC - Max. 20 A on the Y plug (n ) and 20 A each on the plug (MPP tracker 1/n and MPP tracker 2/n Max.

  • Page 41: Connecting Pv Cables

    Connecting PV Connect the PV cables of the PV mod- cables ules as labeled. Unused plugs on the inverter must be closed using the cover caps supplied with the inverter.

  • Page 42: Establishing Equipotential Bonding

    Establishing equipotential bonding Establishing Depending on local installation regulations, it may be necessary to ground the equipotential device with a second ground connection. The threaded bolt on the underside of bonding the device can be used for this purpose.

  • Page 43: Connecting The Data Communication Cables

    Connecting the data communication cables Permitted cables LAN connections for the data Fronius recommends using at least CAT 5 STP (shielded twisted pair) cables communication and a maximum distance of 100 m. area Multiple invert- The network cabling of the inverters can have a star or linear configuration. Ring ers in a network connection is not permitted.

  • Page 44: Connecting The Err Alarm Relay

    Remove the cap nut on the strain-re- lief device and press the sealing ring out from the inside of the device using the blanking plugs. First, guide the data cables through the cap nut of the strain-relief device and then through the housing opening. In the area of the shield support of the EMC cable gland, strip the lead by 10 mm up to the shield.

  • Page 45: Connecting Inv Off

    Maximum contact rating The contact is designed as a normally open contact. Connecting INV A separate power supply is needed when using a third-party device. An active-low signal is required to switch off the power supply. One or more inverters can be connected. min./max.

  • Page 46: First Startup

    First startup Closing and switching on the inverter WARNING! Housing components may become hot during operation. Risk of burns due to hot housing components. ▶ Only touch the housing cover during operation. Attaching safety When connecting to the low-voltage grid in France, a stickers (France) safety sticker must be attached as per directive UTE C15-712-1.

  • Page 47: Establishing A Local Lan Connection

    Establishing a Application: The planned network in- local LAN con- frastructure is not available yet. A DC nection power supply to the inverter is suffi- cient for commissioning. You will need a laptop with a LAN in- terface and a LAN cable. LAN direct Connect the LAN cable to the laptop and inverter (direct LAN connection).

  • Page 48: Access Via Modbus

    The installation includes a number of steps as described below: Language selection Country configuration Power limitation (if necessary) Network parameters Localization Modbus Optional parameters Finalization Access via Mod- The device supports Modbus/TCP and the standard SunSpec models. Write ac- cess can be disabled if security is an issue. Activate Configuration >...

  • Page 49: Energizing The Inverter And Switching It Back On

    De-energizing the inverter and switching it back De-energizing Turn off the automatic circuit the inverter and breaker. switching it back Turn the DC disconnectors to the "Off" switch setting. To start up the inverter again, follow the steps listed above in reverse order.

  • Page 51: User Interface Of The Inverter

    User interface of the inverter...

  • Page 53: General

    Network information Installer Disconnect Grid Update The device carries out regular checks for relevant updates at: …fronius.com For information on changes and improvements included in the updates (change logs) and information on pending updates, please see: …fronius.com Network The device carries out regular checks for relevant updates at: …fronius.com.

  • Page 54: Monitoring

    Monitoring Monitoring Yield today and Yield total Current power in kVA Button for scrolling to the next page Current power in kW Current reactive power in kvar Button for scrolling to the previous page Inverter status indicators Reactive power factor (13) (12) (10)
  • Page 55 (14) (16) (15) (14) Export function (15) Stop (16) Deselect all channels...

  • Page 56: Yield

    Yield Configuring via a web interface Display Setting Description Day view Displays recorded operating data as a diagram. Select a day. ü The web interface displays the selected data. Week view Displays recorded operating data as a diagram. Select a week. ü...

  • Page 57: Configuration

    Configuration General Password protecting special network parameters Once the password is enabled, it also applies for external change requests (e.g., via Modbus or other external interfaces). You will be asked for the password if you want to change a protected network parameter.
  • Page 58 Display Setting Description Trip Settings Enable shutdown according to generic parameters, frequency, or voltage. Generic parameters Option to activate standard protective shutdown Trip with intentional Check to enable Enable delayed trip if necessary. delay Confirm the action field. Frequency Option to monitor frequency tripping Trip underfrequency Status Enable if necessary.
  • Page 59 Display Setting Description Trip overvoltage monit- Status Enable if necessary. oring Number of trip over- Specify the number of protection levels. voltage levels Trip overvoltage level 1 100-125 Define the range and trip time. [% U Confirm the action field. Trip overvoltage time 0-180,000 [ms] level 1...
  • Page 60 Display Setting Description Min. conn. frequency 45-65 [Hz] Set connection frequency range after grid monit- after grid failure oring. Max. conn. frequency 45-65 [Hz] after grid failure Monitoring time PV 1,000-1,800,000 Set time for monitoring the mains voltage and PV voltage [ms] voltage.
  • Page 61 Display Setting Description Settling time 200-60,000 Set the settling time. [ms] / 1,000 [ms] Confirm the action field. P(f) Enable frequency-dependent power reduction in the P(f) menu. Operation mode Off | Mode 1 | Specify the operation mode. Mode 2 | Mode 3 Mode 1 = Hysteresis active - Limit ;...
  • Page 62 Display Setting Description Evaluated voltage Maximum phase Specifies which voltage is evaluated in a three-phase voltage | Positive system. phase sequence voltage Select the power-dependent control method. Hysteresis mode Off | On Hysteresis mode affects the shutdown response of P(U). Enable the mode.
  • Page 63 Display Setting Description Power gradient increase 1-65,534 Set the maximum change in the reactive power & decrease [% Slim / min] %Slim/min in the event of a change to overexcited mode. Set the maximum change in the reactive power %Slim/min in the event of a change to underex- cited mode.
  • Page 64 Display Setting Description Cos phi Curve 0.3-1 ind./cap. Specify cos j of the node. Excitation Curve overexcited | un- Overexcited corresponds to a capacitive load, under- derexcited excited to an inductive load. If a reactive power not equal to 1 is selected: Se- lect the type of phase shift.
  • Page 65 Display Setting Description Q minimum 0-100 [% Slim] Set reactive power Q to a min. value. underexcited | Select the type of phase shift. overexcited Underexcited corresponds to an inductive load, over- excited to a capacitive load. Q maximum 0-100 [% Slim] Set reactive power Q to a max.

  • Page 66: Dc Settings

    Display Setting Description Operation mode On | Off Select a control process. On: Activates dynamic grid support using dynamic reactive current. Off: Deactivates dynamic grid support using dynam- ic reactive current. Dynamic grid support remains active on account of interference immunity. Setting Manual | Pre- Select a control process.

  • Page 67: Communication

    Display Setting Description DC configuration All inputs separ- Observe the recommended default configuration! ate | All inputs parallel Select "All inputs seperate" if strings are connec- ted individually. Optional: Select "All inputs parallel" if strings are connected in parallel. Confirm the action field. Global MPPT To determine the global MPP, first MPP trackers (1/3/5/7/9) and then MPP trackers (2/4/6/8/10) are considered.

  • Page 68: Features / Functions

    Display Setting Description Modbus TCP/UDP Check to enable Enabling write access makes it possible to set sys- Write access tem-critical parameters via Modbus TCP. Are you sure you want to allow write access? Allow Modbus TCP write access. Confirm the action field. Modbus TCP/UDP Set network port.

  • Page 69: Service / Maintenance

    Option to send an error log. Export Service Package Press the export button and send the file to Fronius. Service Log Shows all logged installations. You should also use the "Service" and "Installer" interface to manu- ally add all maintenance tasks.
  • Page 70 Display Setting Description Settings Set the interface for data logging and the basic counter. User logging interval 1 | 5 | 10 | 15 Setting and time until memory is overwritten: 1 [minutes] min-5 days; 5 min-4.5 years; 10 min-9 years; 15 min-14 years.
  • Page 71 Display Setting Description Shows all actions carried out in the system and on the web interface. Account Management Account Management After starting for the first time, the default pass- word must be changed. Enter a user name. Enter a user-defined password. Reboot Device Transfer safety-relevant parameters to a medium.

  • Page 73: Advanced Settings

    Advanced settings...

  • Page 75: Reactive Power Control

    Maximum continuous apparent power as a function of the mains voltage: Argeno 125 voltage with U 380 V Maximum apparent power [p.u.] ≥...

  • Page 76: Reactive Power Functions

    value of a PT-1 filter. Depending on the control method selected, there are also other parameters that determine dynamic behavior. Reactive power The following functions for controlling reactive power are implemented: cos constant j functions Q constant cos j (P) Q(P) 10 nodes Q(U) 10 nodes Reactive power is prioritized by default for all methods but can be disabled.
  • Page 77 Model Parameter Scale factor Range Description 123. OutPF- 0-1,000 Specifies the time after Set_RvrtTms which the inverter reverts Timeout to the previously valid re- active power process if it does not receive a new power factor specification. If the timeout is set to 0 seconds, the sent power factor specification is per- manently maintained, even...
  • Page 78 Model Parameter Scale factor Range Description 123. VArPct_RmpTms 1-65,524 Specifies the dynamic be- Output gradient [% Slim / havior on changing the re- limitation in- min] active power value power crease & Output factor. The reactive power gradient limita- is changed with the spe- tion decrease cified gradient.

  • Page 79: Parameters For Reactive Power Control

    Q [%PN] 1) 43,6 | 207 2) 0 | 212 3) 0 | 230 4) 0 | 248 5) 43,6 | 253 U[V] Q(U) standard characteristic Q(U) standard characteristic with five nodes Q(P) 10 nodes In Q(U) mode, the reactive power set value is calculated continuously as a func- tion of the effective power.
  • Page 80 Display Setting Description Settling time 1,000-120,000 Specifies the dynamic behavior on changing the cos j set value. In the event of a change in the reactive [ms] power, cos j is changed according to a PT-1 charac- teristic with a settling time of 5 tau. Q constant Q constant 0-100 [% Slim]...
  • Page 81 Display Setting Description Power gradient in- 1-65,534 [% S The rate of change of the output is limited by the crease & decrease configured value in the event of an increase in the min] output power. The rate of change of the output is limited to the configured value in the event of a decrease in the output power.
  • Page 82 Display Setting Description Settling time 1,000-120,000 [ms] Settling time in the event of an abrupt change in the reactive power set value (e.g., caused by a voltage jump). The transient response corresponds to a first- order filter (PT-1) with a settling time = 5 tau. The settling time is overlaid with the increasing and decreasing gradient.
  • Page 83 Display Setting Description 1. node ... 10. node Power | Voltage | Ex- Power of the node as a percentage of the maximum citation power. 0-100 [% S For the first node, the power must be 0%, for the last node the power must be 100%. The power val- ues of the nodes must increase continuously.

  • Page 84: Effective Power Control

    Effective power control Dynamics/accur- In all of the control methods described below the specified set value at the in- verter's terminals is adjusted using a stationary deviation of the effective power of maximum 2% S The transient response of the control methods is determined by a PT-1 filter. The settling time is 5 tau, which corresponds to achieving approx.

  • Page 85: Voltage-Dependent Power Reduction P(U)

    Model Parameter Scale factor Range Description WMaxLimPct_Rvr 0-1,000 Specifies the time after tTms which the inverter in- Timeout creases the power limita- tion if it does not receive a new one. If the timeout is set to 0 seconds, the power limita- tion that is sent is perman- ently maintained, even in the event of a communica-...
  • Page 86 Configuration examples: Without hysteresis: The function is activated as soon as the voltage exceeds the value of data point 1 (dp1). The power limit follows a straight line between dp1 and dp2. The function is deactivated as soon as the voltage falls below dp1.

  • Page 87: P(F)

    Display Setting Description Deactivation gradi- 0-65,534 [% / min] If the available power is above the actual output at the time of deactivation, the power increase back to the maximum power is limited. The limitation is im- plemented by an absolute power limitation that in- creases with a continuous gradient up to the maxim- um power.
  • Page 88 to a possible fluctuation in the available power or the set value, but at no time increases above the absolute power limit. Equation 1 Equation 2 Equation 1 defines the maximum limit with DP as per equation 2, P the actual power at the time of activation, and P the reference power.

  • Page 89: Parameters For P(F)

    100 % P 100 % P = = P ef f =5 5 2 Hz = = 5 5 5 5 % % % % % % % deactivated stop 50 , 1 Hz stop 60 % P 60 % P 50 , 5 51 , 0 51 , 5...
  • Page 90 Display Setting Description Activation threshold 40-50 [Hz] Activation threshold (f1) underfrequency: at underfrequency Determines the frequency threshold for activating the function in case of underfrequency events. The Activation threshold 50-60 [Hz] effective power adjustment is activated if the fre- at overfrequency quency falls below the configured value and mode 1 or 2 is activated.
  • Page 91 Display Setting Description Output gradient lim- 0-65,534 [% / min] Specifies the dynamic response on changing the ef- itation increase & fective power for power increase and decrease. If decrease the voltage changes, the effective power is changed with the specified gradient. The gradient is overlaid with the settling time.

  • Page 92: Dynamic Grid Support

    Dynamic grid support Dynamic grid The capacity of a generating system to remain immune to voltage dips and support (fault voltage spikes in the supply system is a key element in establishing a reliable en- ride through) ergy supply. Interference immunity ensures that brief disruptions do not result in a loss of relevant generation capacity in a larger area of an interconnected grid.
  • Page 93 order to bolster the mains voltage. The support takes place in the event of voltage dip with overexcited reactive current (corresponds to a capacitive load), and in the event of a voltage spike with underexcited reactive current (corres- ponds to an inductive load). In the reactive current priority mode, the active cur- rent is reduced to the extent necessary to comply with the limits of the maximum continuous current of the inverter.

  • Page 94: Parameters For Frt

    Parameters for Display Setting Description FRT (Fault Ride The device supports dynamic grid stabilization (fault Through) ride through). Setting: Manual Operation mode On | Off All parameters can be configured independently. Settings Manual | Predefined zero current Setting: Predefined zero current Dynamic grid support active on account of interfer- ence immunity and zero current feed-in.
  • Page 95 Display Setting Description Constant k positive k 0-10 Amplification factor for the negative phase-se- sequence dip and quence system used in the calculation of the react- swell ive current using formulas (2) and (4). Can be con- figured independently for drops and spikes. Dead band 2-120 [% Uref] Dynamic grid support through fast feed-in of resid-...
  • Page 96 Display Setting Description Minimum support 1,000-15,000 [ms] If activated due to a voltage jump in accordance with time formula (1) and the configured dead band, the dy- namic grid support via fast feed-in of residual cur- rent is deactivated after the minimum support time elapses.

  • Page 97: Other Grid-Supporting Functions In The Case Of Effective Power

    Other grid-supporting functions in the case of ef- fective power Permanent The maximum effective and apparent power to be installed for a generation sys- power gradients tem is agreed between the utility and system operator. The device capacity of a system can be set to the exact agreed value using the S and P settings.

  • Page 98: Parameters For Permanent Power Limitation

    The following formulas are used to calculate the gradient S lim/min 100000 Power / kVA resp. kW =100 WMaxLimPct =40 Gradient = -600 % S /min Time / s Power gradient according to sample parameters and calculation The following formulas are used to calculate the Q filter parameter and cos j gradient: Formula for calculating the Q filter parameter j gradient (internal power gradient)

  • Page 99: Power Gradient Normal Operation

    It is possible to configure: Whether the soft start-up should occur every time the device is switched on Whether the soft start-up should occur only upon initial start-up each day Whether the soft start-up should occur only when starting up after the device has been switched off by the grid protection Primarily because there is a risk that many systems could increase their power levels simultaneously after they have been switched off by the grid protection, a...

  • Page 100: Enhanced Island Detection

    Enhanced island detection Enhanced island Due to decentralized generation, there is the possibility that a deactivated part detection of the grid will remain live in an unintended island due to a local balance between load and generation in this part of the grid. The detection of unintended island formation is an important function of decentralized generating units and plays a role in preventing damage to equipment as well as ensuring the safety of person- nel.
  • Page 101 device switches to zero current mode. If the ROCOF of the grid exceeds the con- figured shutdown threshold (stage 2) for the shutdown disconnection time, the device switches off. In case of an island, this will shut down the island instantan- eously.

  • Page 102: Q On Demand

    Q on Demand Q on Demand DANGER! If night shutdown is disabled ("Q on Demand" mode), there may still be a high level of DC voltage on both the string collector and the device, despite the string collector being switched off. Severe injury and death may result.

  • Page 103: Appendix

    Appendix...

  • Page 105: Care And Maintenance

    Care and maintenance Safety DANGER! Lethal voltages are still present in the connections and leads of the device even after the device has been switched off and disconnected. Touching the leads or terminals/busbars in the device can result in severe in- juries or death.

  • Page 106: General

    Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly. Maintenance Maintenance and service work may only be carried out by Fronius-trained service technicians. Cleaning Wipe the inverter, if necessary, with a damp cloth.

  • Page 108: Status Codes And Remedy

    The start-up input voltage setting may be incorrect. Remedy: No action necessary. Remedy: If status code persists, contact a Fronius-trained service technician.
  • Page 109 Ensure sufficient cooling of the device. Remedy: Remove any foreign matter from the device Remedy: If the first two steps do not help, contact a Fronius-trained service technician Cause: A module string is disconnected from the device due to a defective DC fuse.

  • Page 110: Technical Data

    Technical data Argeno 125 Input data Max. input voltage 1,100 V (at 1,000 W/m²/-10 °C in an open circuit) Nominal input voltage 620 V DC starting voltage 250 V MPP voltage range 550-850 V Number MPP-controller Maximum input current (I...
  • Page 111 Output data AC overvoltage category Current (inrush) < 20 A [RMS (20 ms)] Duration of short circuit alternating current (max. 3 x 182.66 A output fault current) General data Night-time power loss = standby consumption 4.8 W 400 V AC no LAN European efficiency 98.7% Maximum efficiency...

  • Page 112: Explanation Of Footnotes

    Explanation of The values provided are standard values. If required, the inverter is cus- footnotes tomized for a specific country. Depending on the country setup or device-specific settings (ind. = inductive; cap. = capacitive) Maximum current from a defective PV module to all other PV modules. From the inverter itself to the PV side of the inverter, this is 0 A.

  • Page 113: Relevant Standards And Directives

    Relevant Standards and Directives CE Conformity The equipment complies with all the requisite and relevant standards and direct- Marking ives that form part of the relevant EU directive, and therefore is permitted to dis- play the CE mark. Mains failure The standard measurement and safety procedures integrated into the inverter ensure that the power feed is immediately interrupted in the event of a grid fail- ure (for example shut-off by the grid operator or damage to lines).

  • Page 114: Service, Warranty Terms And Conditions, And Disposal

    To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com. Disposal The manufacturer, Fronius International GmbH, will take back the old device and arrange for it to be professionally recycled. Observe the national regulations for...

  • Page 115: Circuit Diagrams And Dimensions

    Circuit diagrams and dimensions...

  • Page 116: Dimensions Of The Mounting Bracket

    Dimensions of the mounting bracket...

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