Fronius GEN24 Operating Instructions Manual
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Fronius GEN24 Operating Instructions Manual

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Operating
Instructions
GEN24 & Tauro Country Setup Menu
EN
Operating Instructions
42,0426,0413,EN
007-26072022

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  • Page 1 Operating Instructions GEN24 & Tauro Country Setup Menu Operating Instructions 42,0426,0413,EN 007-26072022...

  • Page 3: Table Of Contents

    Contents General Country setup Access code Adjusting parameters with the Fronius Solar.start app Adjusting parameters with the browser Country setup Country setup selection Country setup selection General Startup and Reconnection Ramp Rates Safety Unintentional Islanding Detection Isolation monitoring DC Arc Fault Protection...

  • Page 4: General

    Country setup The "Country Setup" menu area is intended exclusively for installers/service technicians from authorised specialist companies. The access code must be re- quested from the national/international Fronius point of contact using an applic- ation form. CAUTION! Risk due to unauthorised access.
  • Page 5 ▶ Do not give the access code to third parties and/or unauthorised persons. Adjusting para- The "Fronius Solar.start" app is needed for registration. Depending on the end meters with the device, the app is available on the respective platform. Fronius Sol- ar.start app...
  • Page 6 Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_PILOT" and the serial number of the device). Password: enter 12345678 and confirm. IMPORTANT! To enter the password on a Windows 10 operating system, the link "Connect using a security key instead"...

  • Page 7: Country Setup

    Country setup...

  • Page 9: Country Setup

    "Country setup" Displays the available setups per country/region. A setup is a device configuration predefined by Fronius. The selection of the country setup must be made in consideration of the applicable standards or in coordination with the grid operator. "Rated Frequency (Hz)"...

  • Page 10: General

    General Startup and Re- These parameters can be used to set the grid monitoring times before the invert- connection er is switched on. For the set time, both the mains voltage and the grid frequency must be within the permissible range before connection is allowed. The permissible range for the mains voltage is defined in the menu area "Grid and system protection"...

  • Page 11: Startup And Reconnection

    Name Description "StateCode" "StateCode" name number "Long Time Aver- Mains voltage exceeds the "Long-term 1117 age Overvoltage long-term overvoltage lim- mains Limit" it ("Long Time Average voltage limit Limit"). exceeded" "Unintentional Is- Unintentional islanding "Islanding 1004 landing Detec- was detected. detected"...
  • Page 12 Parameter Range of values Description "Ramp-Down Irra- The effective power reduction is limited diation" with a rate of change of "Ramp-Down Irradiation Rate". Note: This func- The function is deactivated. tion only has an effect on invert- ers with storage. "Ramp-Down Irra- 0.001 - 200 Permitted rate of change of effective...
  • Page 13 Parameter Range of values Description 0.001 ‑ 100 "Ramp-Down Permitted rate of change for power re- Communication [%/s] duction. Rate"...

  • Page 14: Safety

    Safety Unintentional Is- Unintentional islanding landing Detec- In the event of a grid failure or disconnection of a small part of the grid from the tion higher-level utility grid, it is possible under special conditions for local loads and inverters to establish unintentional islanding. If the generation and load (of both active and reactive power) are balanced, the AC voltage and frequency can re- main within the allowable limits.
  • Page 15 must be activated for both the isolation warning and the isolation error. Isolation Warning The measured value of the isolation monitoring is used for an isolation warning. Status code 1083 is displayed if the measured value falls below an adjustable limit value.
  • Page 16 DC Arc Fault These parameters can be used to set the behaviour of the arc detection at the Protection DC terminals of the inverter. The DC Arc Fault Protection function protects against arc faults and contact faults. Any faults that occur in the current and voltage curve are constantly evaluated and the current circuit is switched off if a contact fault is detected.
  • Page 17 Parameter Range of val- Description "Automatic Re- If more arcs have been detected within 24 connects" hours than are defined in "Automatic Re- connects", the inverter will not make any further attempt to start feeding energy in- to the grid. The status code 1006 is dis- played on the user interface of the invert- er after each detection and must be ac- knowledged manually.

  • Page 18: Rcmu

    Parameter Range of val- Description "Recording If "Automatic Signal Recording (ASR)" is Probability" activated, the frequency for a recording can be set here. No signal characteristics are recorded. 0.0 ‑ 1.0 Every 10 minutes, data is uploaded to the cloud with a frequency in accordance with the "Recording Probability".

  • Page 19: Dc Shutdown Communication

    Parameter Range of val- Description "Automatic Re- If more fault currents have been detected connects" within 24 hours than are defined in "Auto- matic Reconnects", the inverter will not make any further attempt to start feeding energy into the grid. The status code 1076 is displayed on the user interface of the in- verter and must be acknowledged manu- ally.

  • Page 20: Interface Protection

    Interface Protection Voltage This chapter deals with the protection settings for overvoltage and undervoltage. Mains voltage limits are defined for this purpose. These depend on the country setup and can be adjusted as described below. Each mains voltage limit is defined by: an undervoltage with associated protection time, or an overvoltage with associated protection time.
  • Page 21 "Middle Limits" Parameter Description "Voltage Middle Limits" Activate / deactivate the middle voltage limit values "On" / "Off" "Undervoltage U<" Setting value for undervoltage protection U< in [V] "Undervoltage Time U<" Setting value of time for undervoltage protection U< in [s] "Overvoltage U>"...

  • Page 22: Voltage

    and frequency must be fulfilled for a certain time. A distinction is made between: "Startup": switching on the inverter during a normal startup process (e. g. at sunrise) and "Reconnection": the reconnection of the inverter after a grid fault (see table "Grid faults") (e.
  • Page 23 Name Description "StateCode" "StateCode" name number "Overfrequency" Grid frequency exceeds an "AC fre- 1035 overfrequency limit ("In- quency too ner, Outer or Alternative high" Limit Overfrequency"). "Underfrequency" Grid frequency falls below "AC fre- 1037 an underfrequency limit quency too ("Inner, Outer or Alternat- low"...
  • Page 24 "Inner limit" - inner limit value "Outer limit" - outer limit value Trip range Overfrequency Underfrequency Graphic illustrating the limits In backup power mode, the inverter itself determines the frequency and the fre- quency limits are therefore not active. "Inner Limits" Parameter Description "Underfrequency f<"...
  • Page 25 Each time the inverter is restarted, the "Frequency Alternative Limit" does not have to be set to "On" again, but the external signal to activate it must be sent again. If it is not sent, the inner frequency limit value is used. Parameter Description "Frequency Alternative...

  • Page 26: Frequency

    Parameter Description "Reconnection Minimum Lower value of the grid frequency for reconnection Frequency" in [Hz] "Reconnection Maxim- Upper value of the grid frequency for reconnection um Frequency" in [Hz] "Startup Minimum Fre- Lower value of the grid frequency for the normal quency"...

  • Page 27: Dc Injection

    RoCoF detection can be used as a passive stand-alone operation detection meth- Parameter Description "Rate of Change of Fre- Activate and deactivate the RoCoF protection. quency (RoCoF) Protec- "On" / "Off tion." "ROCOF Limit" Setting value of the frequency change protection in [Hz/s] "RoCoF Time"...
  • Page 28 Parameter Range of val- Description 0.0 s ‑ 10.0 s "DC Injection Protection time for the inner limit - Shut- Time" down occurs after the respective limit value has been exceeded for this time. "Outer Limit" Parameter Range of val- Description "Mode"...

  • Page 29: Grid Support Functions

    Grid Support Functions Voltage Fault In the event of faults in the grid, there is a risk of a large number of generation Ride Through plants being shut down unintentionally and thus a risk of network collapse. Grid (VFRT) voltage disturbances (Voltage Fault, Gridvoltage-Disturbance) are short-term voltage dips or surges in the grid.
  • Page 30 Regions R1 to R3 must have descending values of detection thresholds: The R1 threshold must be higher than the R2 threshold, and so on. The use of identical thresholds for multiple regions is prohibited. Using the threshold value 0 % is allowed. To deactivate a specific region, its threshold can be used: An HV region (R1) is deactivated by adjusting the threshold to 200 %.
  • Page 31 Region 1 These setting values define how the inverter behaves within Region 1. The choice of setting has no effect on regions 2 and 3. Parameter Range of values Standard Description value "Current Calc Current inrush mode for Mode" region 1. This parameter defines the type of current feed dur- ing a region 1 voltage fault.
  • Page 32 Parameter Range of values Standard Description value 0 ‑ 200 "Threshold Stat- 125 % Voltage threshold (in % of ic" [% UacNominal] nominal voltage) that must be exceeded or fallen be- low to activate VFRT re- gion 1 and its associated current inrush mode.
  • Page 33 Region 2 These setting values define how the inverter behaves within Region 2. The choice of setting has no effect on regions 1 and 3. Parameter Range of values Standard Description value "Current Calc Current inrush mode for Mode" region 2. This parameter defines the type of current feed dur- ing a region 2 voltage fault.
  • Page 34 Parameter Range of values Standard Description value 0 ‑ 200 "Threshold Stat- 40 % Voltage threshold (in % of ic" [% UacNominal] nominal voltage) that must be exceeded or fallen be- low to activate VFRT re- gion 2 and its associated current inrush mode.
  • Page 35 Region 3 These setting values define how the inverter behaves within Region 3. The choice of setting has no effect on regions 1 and 2. Parameter Range of values Standard Description value "Current Calc Current inrush mode for Mode" region 3. This parameter defines the type of current feed dur- ing a region 3 voltage fault.

  • Page 36: Active Power

    Parameter Range of values Standard Description value 0 ‑ 200 "Threshold Stat- Voltage threshold (in % of ic" [% UacNominal] nominal voltage) that must be exceeded or fallen be- low to activate VFRT re- gion 3 and its associated current inrush mode. >...
  • Page 37 When the function is activated and the specified grid voltage limit value is ex- ceeded, the effective power is reduced according to a defined gradient if the mains voltage is too high (see example "System without storage" - red characteristic curve) is increased according to a defined gradient if the mains voltage is too low (only possible with hybrid inverters, see example "System with storage"...
  • Page 38 "System with storage and act- Description of the parameters ive grid support enabled" (graphic - blue characteristic curve) "Mode": On (without Hys- (1) (4) Momentary effective power when the teresis) respective "Activation Threshold" is Battery is active reached: 50 % of P (equipment - "Active Grid Support": On nominal power)
  • Page 39 Parameter Range of val- Description Availability 208 ‑ 311 [V] "Activation Mains voltage limit value Threshold Over- above which the power re- voltage" duction takes place. 0.01 ‑ 100 [%/ "Gradient Over- Gradient by which the ef- voltage" fective power is reduced. Example - conversion from static to gradient: Static s = 4 % →...
  • Page 40 Parameter Range of val- Description Availability 0 ‑ 600 [s] "Time Constant Time constant (1 Tau) in (τ)" seconds [s]. Whenever the set value is changed, this new set value is not triggered abruptly, but smoothly in accordance with a PT1 response. The time constant describes how quickly the new set value is reached.
  • Page 41 Power curve when "Activation Threshold Overvoltage" is exceeded. Parameter Range of val- Description Availability 200 ‑ 311 [V] Used ex- "Stop Voltage at Mains voltage limit value Undervoltage" up to which the charging clusively in power of the battery is re- the follow- duced.
  • Page 42 Charge power limitation when "Activation Threshold Undervoltage" is exceeded. Frequency-dependent Power Control , also called frequency/watt function or P(f) function, causes a change in effect- ive power depending on the grid frequency. A distinction is made between: Overfrequency Underfrequency When the function is activated and the specified grid frequency limit value is ex- ceeded, the effective power is reduced according to a defined gradient in the event of an overfrequency (in the case of an inverter with storage, discharge of the storage is stopped...
  • Page 43 Once the grid frequency falls within the permitted frequency range again follow- ing successful power reduction, return to the full power available takes place de- pending on the country setup as follows: Mode: "On (without Hysteresis)" The inverter increases the power from the current reduced value to the ori- ginal value in accordance with the same gradient used for power reduction.
  • Page 44 Example 2 Description of the parameters "P(f) Mode": On (without Momentary effective power when the Hysteresis) respective "Activation Threshold" is "Configuration Method": reached: 60 % of P (nominal power). Stop frequency "Activation Threshold Underfre- "Active Grid Support": Off quency": 49.7 Hz "Stop Frequency - Underfrequency": 49.0 Hz "Power at Stop Frequency - Underfre-...
  • Page 45 Example 3 Description of the parameters "P(f) Mode": On (with Hys- Momentary effective power when the teresis) respective "Activation Threshold" is "Configuration Method": reached: 60 % of P (nominal power). Gradient "Gradient Underfrequency": 80 %/Hz "Active Grid Support": Off "Activation Threshold Underfre- "Calculation Mode Under- frequency": P quency": 49.7 Hz...
  • Page 46 Parameter Range of val- Description Availability "Mode" The function is deactiv- ated. On (with Hys- Function is activated with teresis) hysteresis. On (without Function is activated In the fol- Hysteresis) without hysteresis. lowing setups "On (without Hysteresis)" is not pos- sible: Region A 2020...
  • Page 47 Overfrequency Parameter Range of val- Description Availability "Calculation Indicates the reference Mode Overfre- power for calculating the (k*df) quency" power limit in the event of overfrequency. (k*df) Reference power → Momentary (k*df) power when the fre- quency limit value is exceeded.
  • Page 48 Parameter Range of val- Description Availability 45 ‑ 66 [Hz] "Lower Deactiv- Used when "Mode" is set to ation Threshold "On (with Hysteresis)". Overfrequency" If this value is less than the "Upper Deactivation Threshold Overfrequency", a frequency window res- ults in which the grid fre- quency must be located to terminate the function.
  • Page 49 Example 4: Setups AUS/NSZ Description of the parameters 2020 "P(f) Mode": On (with Hys- Momentary effective power when the teresis) respective "Activation Threshold" is "Active Grid Support": On reached: 60 % of P (nominal power). Battery is active The gradient for power reduction in generator-powered operation at over- frequency results automatically from the two set parameters "Activation...
  • Page 50 Power curve at overfrequency with hysteresis. Underfrequency Parameter Range of val- Description Availability "Calculation Indicates the reference Mode Underfre- power for calculating the (k*df) quency" power limit in the event of underfrequency. (k*df) Reference power → Momentary (k*df) power when the fre- quency limit value is exceeded.
  • Page 51 Parameter Range of val- Description Availability 0 ‑ 100 [%] "Power at Stop Power when the set fre- Frequency - Un- quency limit value "Stop derfrequency" Frequency - Underfre- quency" is reached. Ad- justable between 0 % and full feed-in power (100 %). 45 ‑...
  • Page 52 Example 5: Setups AUS/NSZ Description of the parameters 2020 "P(f) Mode": On (with Hys- Momentary draw (charging power of teresis) the battery) when the respective "Ac- "Active Grid Support": On tivation Threshold" (3) is reached: Battery is active 80 % of P (nominal power) The gradient for reducing the charging power at underfrequency results auto-...
  • Page 53 Power curve at underfrequency with hysteresis. General - Frequency-dependent Power Control Parameter Range of val- Description Availability 0.01 ‑ 100 [%/s "Return Gradi- Rate of change at which ent 1" the inverter increases the effective power after the limitation has ended. 0.01 ‑...
  • Page 54 Parameter Range of val- Description Availability 0 ‑ 100 [W%] "Return Gradi- Threshold value from ent 1 Alternat- which "Return Gradient 1" ive Threshold" or "Return Gradient 1 Al- ternative" is applied. Example: If the difference between the rated power and the currently reduced power is less than or equal to the threshold value, "Return...
  • Page 55 Example 6 Description of the parameters Actual power at the moment the limit value is exceeded Reduced power "Gradient Overfrequency" "Deactivation Time" "Return Gradient 1" "Return Gradient 1 Alternative" "Return Gradient 1 Alternative Threshold": P <= 25 % "Return Gradient 1 Alternative Threshold": P >...
  • Page 56 Parameter Range of val- Description Availability "Return Gradi- Deactivates the use of ent 2 Mode" "Return Gradient 2". Rais- ing the effective power from the reduced value to the device rated output takes place according to "Return Gradient 1". Activates a different rate of change at which the in- verter increases the ef- fective power from the ori-...
  • Page 57 Application example with "Return Gradient 2 Mode". Parameter Range of val- Description Availability 0 ‑ 600 [s] "Deactivation Used when "Mode" is set to Time" "On (with Hysteresis)". Waiting time after which the inverter increases the power again (after the grid frequency is again within the permitted frequency range between "Upper De-...

  • Page 58: Reactive Power

    Battery SoC Limitation for Grid Support Parameter Range of val- Description Availability "Mode" Deactivated SoC limitation Activated SoC limitation 0 ‑ 100 % "Battery SoC The battery is not further Lower Limit" discharged when the lower limit is reached. 0 ‑ 100 % "Battery SoC The battery is no longer Upper Limit"...
  • Page 59 Reactive power mode is restricted by the maximum apparent power S (and the maximum output current) as well as by the operational reactive power limits of the inverter: Primo GEN24: Q = 60 % of S (or cos φ = 0.80 at S Symo GEN24: Q = 71 % of S (or cos φ...
  • Page 60 General settings Parameter Range of val- Description "Mode" Reactive power mode selection option. The following modes are described in the subchapters. No reactive power is fed in. Cos φ - Con- Constant Cos φ. stant Power Factor Q Absolute - Constant reactive power in [Var].
  • Page 61 Depending on the selected mode, only the setting options in the respective subchapter and these general settings have an effect. const cos φ Reactive power default defined by a constant cos φ. The function is limited by the maximum apparent power and Cos φ minimum, the P/Q priority has no effect. Parameter Range of val- Description...
  • Page 62 Q Absolute - Constant Reactive Power Reactive power specification defined by a constant value [Var]. The function is limited by the maximum apparent power and by "Cos φ Minimum" Parameter Range of val- Description "Q - Reactive -200,000 Var - Reactive power setting value in [Var] (set Power (Var)"...
  • Page 63 to the nominal apparent power (S ) of the inverter. The function is limited by the maximum apparent power and by "Cos φ Minimum". Parameter Range of val- Description "Q - Reactive -100 % - Reactive power setting as a percentage [%] Power (% of 100 % in relation to the nominal apparent power...
  • Page 64 power and by "Cos φ Minimum". For the characteristic curves, the data points must be entered in the X‑axis (effective power) and in the Y‑axis (Cos φ). Point Parameter Range of val- Description 0 % ‑ 100 % "Active Power Effective power in percent (% of Nominal [%] related to the nominal ap-...
  • Page 65 Point Parameter Range of val- Description 0 % ‑ 100 % "Active Power Effective power in percent (% of Nominal [%] related to the nominal ap- Apparent parent power S Power)" 0 ‑ 1 "cos φ - Power Set value of Cos φ. Factor"...
  • Page 66 Example: Curve defined by four data points. P = 15 %, cos φ = 0.85 - Over-Excited P = 25 %, cos φ = 1 - Over-Excited P = 45 %, cos φ = 1 - Over-Excited P = 90 %, cos φ = 0.9 - Under-Excited General In addition to the four points, the following parameters also come into play: Parameter...
  • Page 67 Parameter Range of val- Description Supplementary de- scription 0 % ‑ 100 % "Lock-Out P- Effective power in With the effective Dependent (% percent [%] related power-dependent of Nominal Ap- to the nominal ap- lock-out values, it parent Power)" parent power S .
  • Page 68 ent power and by "Cos φ Minimum". For the characteristic curves, the data points in the X‑axis (effective power) and in the Y‑axis (reactive power) must be entered. Point Parameter Range of val- Description 0 % ‑ 100 % "Active Power Effective power in percent (% of Nominal [%] related to the nominal ap-...
  • Page 69 P = 50 %, Q = 0 % P = 95 %, Q = -32 % In addition to the four points, the following parameters also come into play: Parameter Range of val- Description Supplementary de- scription 0 % ‑ 120 % "Lock-In AC voltage in per- With the voltage-de-...
  • Page 70 Parameter Range of val- Description Supplementary de- scription 0.01 s ‑ 60 s "Time Constant Time constant (1 (τ)" Tau) in seconds [s]. Whenever the set value is changed, this new set value is not triggered ab- ruptly, but smoothly in accordance with a PT1 response.
  • Page 71 Point Parameter Range of val- Description 50 % ‑ 150 % "Voltage (% of AC voltage in percent [%] re- Nominal lated to the nominal voltage Voltage)" (X‑axis). -100 % ‑ 100 % "Reactive Power Reactive power in percent [%] (% of Nominal related to the nominal appar- Apparent...
  • Page 72 Parameter Range of val- Description Supplementary de- scription 0.01 s ‑ 60 s "Time Constant Time constant (1 (τ)" Tau) in seconds [s]. Whenever the set value is changed, this new set value is not triggered ab- ruptly, but smoothly in accordance with a PT1 response.
  • Page 73 U = 95 %, Q = 32 % U = 97 %, Q = 0 % U = 104 %, Q = 0 % U = 105 %, Q = -32 % Lock-Out P-Dependent (% of Nominal Apparent Power) = 5 % Lock-In P-Dependent (% of Nominal Apparent Power) = 30 %...

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