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Summary of Contents for Fronius 3PN-35A
- Page 1 Operating Instructions Fronius Backup Controller 3PN-35A EN-US Operating instructions 42,0426,0569,EA 003-02062025...
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Page 3: Table Of Contents
Connecting to the public grid Connecting loads in the backup power circuit Connecting the inverter in the backup power circuit Connecting the neutral conductor for the Fronius Smart Meter (optional) Connecting the data communication cable (Fronius GEN24) Commissioning Putting the PV system into operation... - Page 4 Circuit Diagrams Fronius Backup Controller 1-pin separation Fronius Backup Controller 4-pin separation, e.g., Germany Dimensions Fronius Backup Controller 3PN-35A...
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Page 5: General Information
General information... -
Page 7: Safety Information
Safety information Explanation of The warnings and safety instructions in these instructions are intended to pro- warnings and tect people from possible injury and the product from damage. safety instruc- tions DANGER! Indicates an immediately dangerous situation Serious injury or death will result if appropriate precautions are not taken. ▶... -
Page 8: Environmental Conditions
(EMF) occur in the environment around the inverter and the Fronius system components as well as in the area of the PV modules including the supply lines. In the case of exposure to humans, the required limit values are observed when the products are used in line with the intended use and the recommended dis- tance of at least 20 cm is observed. -
Page 9: Emc Measures
of prostheses (implants, metal parts in and on the body) as well as active physical aids (pacemakers, insulin pumps, hearing aids, etc.) are in the vicinity of compon- ents of the PV system, they must consult with the responsible doctor regarding possible health risks. -
Page 10: General
General Information on Technical data and markings are located on the Fronius Backup Controller. This the device information must be kept in a legible condition and must not be removed, covered, pasted or painted over. Labelling CE label – confirms compliance with applicable EU directives and regulations. -
Page 11: Target Group
Target group This document provides detailed information and instructions to ensure that all users can use the device safely and efficiently. The information is intended for the following groups of people: Technical specialists: People with appropriate qualifications and funda- mental electronic and mechanical knowledge, who are responsible for the installation, operation, and maintenance of the device. -
Page 12: Fronius Backup Controller
Fronius Backup Controller Intended use The Fronius Backup Controller is a fixed piece of equipment designed for use in public grids with TT-/TN-S-/TN-C-S systems. Its main function is to automatic- ally and securely disconnect all connected loads and generators from the public grid in the event of a grid failure or grid malfunction in accordance with the spe- cifications of the grid operator. -
Page 13: Scope Of Supply
Fronius GEN24 inverter Converts direct current into alternating current and charges the battery (battery charging is only possible with Fronius GEN24 Plus inverters). The integrated system monitoring enables the inverter to be integrated into a network by means of WiFi. -
Page 14: Positioning
Loads in the system e.g., washing machine, lamps, TV Positioning The Fronius Backup Controller must be installed in the backup power circuit of the photovoltaic system. NOTE! Other inverters/generators in the house Only 1 hybrid inverter may be installed in the backup power circuit of the PV system. -
Page 15: Operating Controls And Connections
Operating controls and connections Connection area 1-pin push-in terminal for the neutral conductor connection to the Fronius Smart Meter (max. 1 A). 8-pin push-in terminal for loads/generators in the backup power circuit. Push-in terminal for digital in- puts/outputs (I/Os). 6-pin push-in terminal for the supply from the public grid. -
Page 17: Installation And Startup
Installation and Startup... -
Page 19: Prerequisites For Connecting
2.5 - 10 mm 2.5 - 10 mm 2.5 - 6 mm 2.5 - 6 mm Push-in terminal for the neutral conductor connection to the Fronius Smart Meter (max. 1 A) 1 - 4 mm 1 - 4 mm 1 - 4 mm 1 - 2.5 mm... -
Page 20: Permitted Cables For Digital Inputs/Outputs (I/Os)
AWG 26 - 16 AWG 26 - 16 AWG 26 - 16 The maximum cable length between the inverter and the Backup Control- ler must not exceed 30 m (32 yd). Fronius recommends using at least CAT 5 STP (shielded twisted pair) cables. -
Page 21: Installation
Installation Safety WARNING! Danger from short circuits due to foreign bodies in the housing. An electric shock can lead to serious injury or death. ▶ Cover vents during installation. WARNING! Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property. ▶... -
Page 22: Energizing All Sides Of The Pv System
Wait for the capacitors of the inverter to discharge (2 minutes). Installation The Fronius Backup Controller can be mounted on a 35 mm DIN rail. The housing comprises 11 modules accord- ing to DIN 43880 and conforms to unit... -
Page 23: Connecting To The Public Grid
Connecting to WARNING! the public grid Danger from loose and/or incorrectly clamped single conductors in the ter- minal. This can result in serious injury and damage to property. ▶ Only connect one single conductor in the slot provided for each terminal. ▶... -
Page 24: Connecting Loads In The Backup Power Circuit
Connecting WARNING! loads in the backup power Danger from loose and/or incorrectly clamped single conductors in the ter- circuit minal. This can result in serious injury and damage to property. ▶ Only connect one single conductor in the slot provided for each terminal. ▶... -
Page 25: Connecting The Inverter In The Backup Power Circuit
Connecting the WARNING! inverter in the backup power Danger from loose and/or incorrectly clamped single conductors in the ter- circuit minal. This can result in serious injury and damage to property. ▶ Only connect one single conductor in the slot provided for each terminal. ▶... -
Page 26: Connecting The Neutral Conductor For The Fronius Smart Meter (Optional)
Connecting the WARNING! neutral conduct- or for the Froni- Danger from loose and/or incorrectly clamped single conductors in the ter- us Smart Meter minal. (optional) This can result in serious injury and damage to property. ▶ Only connect one single conductor in the slot provided for each terminal. ▶... -
Page 27: Connecting The Data Communication Cable (Fronius Gen24)
Use network cables of type CAT5 STP or higher. Use a twisted cable pair for corresponding data cables. Use double insulated or sheathed data cables when near bare conductors. Use shielded twisted pair cables to avoid interference. Fronius Smart Meter Backup Controller Inverter TS 65A-3... -
Page 28: Commissioning
Commissioning Putting the PV Switch on the battery connected to system into op- the inverter. eration Set the DC disconnector to the "on" switch position. Turn on the automatic circuit breaker. General IMPORTANT! Settings in the Device configuration > Functions and I/Os menu item may only be implemented by staff trained to do so! The service password must be entered for the Device configuration menu item. -
Page 29: Testing Backup Power Mode
During ongoing operation (recommendation: at least once a year) For test mode, a battery charge of min. 30% is recommended. A description on how to run test mode can be found in the backup power check- list (https://www.fronius.com/en/search-page, item number: 42,0426,0365). -
Page 31: Appendix
Appendix... -
Page 33: Care, Maintenance, And Disposal
Care, maintenance, and disposal Cleaning Clean the Backup Controller as required with a damp cloth. Do not use cleaning agents, abrasives, solvents or similar to clean the Backup Controller. Maintenance Maintenance and service work may only be carried out by qualified technical per- sonnel. -
Page 34: Warranty Provisions
Warranty provisions Fronius manu- Detailed, country-specific warranty conditions are available at www.fronius.com/ facturer's war- solar/warranty. ranty To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com. -
Page 35: Technical Data
Technical data Fronius Backup General data Controller Grid configuration TT / TN-S / TN-C-S 3PN-35A Housing 11 modules according to DIN 43880 Mounting 35 mm DIN rail Weight 856 g Protection class IP20 Fault Ride Through (FRT) According to EN 50549-10... -
Page 37: Circuit Diagrams
Circuit Diagrams... - Page 38 Fronius Backup Controller 1-pin separation BESTEHENDE HAUSINSTALLATION EXISTING DOMESTIC INSTALLATION DC= IN BATTERY PV-GENERATOR DC CONNECTION POTENTIALAUSGLEICHSSCHIENE MEN - LINK PV INPUTS BATTERY FRONIUS INVERTER (SINGLE PHASE) =A1+A2 PILOT / PILOT2 ModBus 0 ( PILOT2 AC TERMINAL 4,071,817 ONLY ) CAT5 STP ANSCHLUSS FÜR VON FRONIUS...
- Page 39 Fronius Backup Controller 4-pin separation, e.g., Germany BESTEHENDE HAUSINSTALLATION EXISTING DOMESTIC INSTALLATION DC= IN BATTERY PV-GENERATOR DC CONNECTION POTENTIALAUSGLEICHSSCHIENE MEN - LINK PV INPUTS BATTERY FRONIUS INVERTER (THREE PHASE) =A1+A2 PILOT / PILOT2 ModBus 0 ( PILOT2 AC TERMINAL 4,071,817...
- Page 41 Dimensions...
- Page 42 Fronius Backup Controller 3PN-35A...
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