Used. Green Energy company gives a 12 month guarantee FAQ 

1. Introduction

The Fronius IG Plus 35v‑1 is a single-phase grid-connected photovoltaic inverter. It converts DC power from solar panels into AC power suitable for the grid, while monitoring performance and providing protection features.

Model: 4.210.015
Output: 3150 W
Rated Voltage: 230 VAC, 50/60 Hz
Type: Grid-tied inverter

2. Safety Instructions

⚠️ Important – Read Before Installation or Operation

1. Only qualified electricians should install and operate the inverter.

2. Disconnect the inverter from AC and DC power before performing any work.

3. Ensure proper grounding and bonding according to local regulations.

4. Avoid exposure to water, dust, or extreme temperatures.

5. Do not open the inverter; there are no user-serviceable parts inside.

3. Package Contents

• Fronius IG Plus 35v‑1 inverter

• AC connection cable / terminal blocks

• Mounting brackets and screws

• Quick Start Guide / Safety Instructions

• Optional: Fronius IG Com Card (for monitoring)

4. Device Overview

• DC Input: Connects to solar PV array (max voltage and current as per specification).

• AC Output: Single-phase 230 VAC grid connection.

• LED Indicators:

  • Green: Normal operation

  • Yellow: Warning / inverter starting up

  • Red: Fault / error

• Communication Interfaces: Optional COM card for data logging, monitoring via PC or network

5. Installation

1. Select a suitable location:

   • Indoor, dry, ventilated

   • Max ambient temperature: +60 °C

   • Avoid direct sunlight, dust, or corrosive environments

2. Mounting the inverter:

   • Use supplied brackets and screws

   • Ensure vertical orientation

   • Maintain clearance for ventilation

3. Electrical connections:

   • DC input: Connect PV array (+/−) to inverter terminals

   • AC output: Connect to grid via a dedicated circuit breaker (230 VAC)

   • Grounding: Connect inverter grounding terminal to earth

4. Optional COM card:

   • Install for data logging and monitoring (connects to PC via RS‑232 or USB)

5. Power up:

   • Switch on DC and AC supply

   • Inverter performs self-test and begins feeding the grid

6. Operation

6.1 Normal Operation

• Green LED indicates the inverter is operating correctly and feeding the grid.

• Performance monitoring: Using COM card and Fronius monitoring software, view:

  • Energy production (kWh)

  • AC and DC voltage/current

  • Power output (W)

  • Operational status

6.2 Startup

• Inverter starts automatically when DC voltage from PV array exceeds startup threshold.

• Warm-up delay: ~30 seconds to 2 minutes.

6.3 Shutdown

• Switch off AC and/or DC supply

• Disconnect inverter before maintenance

7. Maintenance

• Clean exterior with dry cloth; avoid water or solvents.

• Inspect cables and terminals regularly.

• Check LED indicators for normal operation.

• Faulty inverters must be serviced by authorized personnel.

8. Troubleshooting

9. Technical Specifications

• Rated AC output: 230 VAC, 50/60 Hz

• Maximum output power: 3150 W

• Maximum DC voltage: 500 V DC

• Maximum DC input current: 15 A

• Efficiency: ~95%

• Operating temperature: −25 °C … +60 °C

• Protection class: IP20

10. Monitoring (Optional)

• Install COM card for monitoring and data logging.

• Connect to PC via RS‑232 or USB.

• Use Fronius IG.access software to view:

  • Energy production

  • Historical data

  • Error logs

11. Warranty and Support

• For technical support and service, contact:
  Fronius International GmbH
  Website: https://www.fronius.com
  Email: support@fronius.com