APS microinverter commissioning checklist

Transcription

1 APS microinverter commissioning checklist As modules are installed: 1. Check that each microinverter powers up successfully as it is connected to the solar module If there is sunlight on the solar module when it is connected to the DC input of the microinverter, the LED on the inverter will flash green three times to indicate a successful start up sequence. If the LED flashes red, or doesn t flash at all, the inverter may be faulty. Disconnect the DC leads and reconnect them to initiate another start up sequence. If the LED doesn t flash green three times, replace the inverter with another one. WARNING: Never disconnect the DC connectors under load. Ensure that the AC supply to the array is disconnected prior to disconnecting and/or reconnecting the DC cables. 2. Remove one serial number sticker off each microinverter as it is installed and stick it onto a piece of paper to show the layout of the array. 3. Ensure that Protective End Caps are installed on last inverter of each branch. 4. Ensure that all AC and DC cables and plugs securely connected and neatly cable- tied to mounting rails - not sagging down onto the roof. 5. Ensure that no more than 11 microinverters (22 modules) are connected in any one branch. 6. Ensure each branch (or the whole installation if there is less than 11 microinverters) is protected by a 25A circuit breaker. Once the system is energised: 7. Double check that all inverter serial numbers and locations have been recorded 8. Ensure switchboard labels have been installed as required on the main switchboard and Solar Array AC Isolator 9. Record the serial number of the ECU This is a 12 digit number starting with the number 2 that can be found on the side of the ECU 10. Plug the ECU into a power point, connect the LAN cable to an internet router and turn it on. Important notes: 1. The microinverters and ECU communicate via a power line carrier signal. The ECU must be plugged directly into a power point. Do not plug it into a power board, UPS, or any other device that may filter out or prevent the signal from APS commissioning checklist Rev.1.0 May 2012 AC Solar Warehouse Page 1

2 the inverters reaching the ECU If the installation has more than 1 phase, the ECU must be connected to the same phase as the PV system. 11. Check that the ECU connects to the expected number of inverters The ECU will cycle through the Initialisation, Starting Up, and Operation display screens when first turned on. This can take up to 30 minutes depending on the number of modules installed and the quality of the power line communications. If some or all of the inverters are not found by the ECU, refer to the next section of this checklist for troubleshooting instructions. 12. Demonstrate basic system operation to the customer: how to isolate the array at the switchboard meaning of indications on the ECU screen website login details will be provided by 13. Ensure that APS Warranty Card 1 has been filled out and signed by the customer 14. Leave PV system owners manual on site 15. Take photographs of all system components After leaving site: 16. Send completed Warranty Card 1 and microinverter serial numbers/layout to the AC Solar Warehouse (info@acsolarwarehouse.com) 17. When monitoring system login details are received from APS/AC Solar Warehouse Log onto monitoring website to check system is operating as expected Pass login details onto customer If you have problems with the installation or commissioning of systems, the team at the AC Solar Warehouse are happy to assist and can be contacted on APS commissioning checklist Rev.1.0 May 2012 AC Solar Warehouse Page 2

3 ECU Troubleshooting If no microinverters are found by the ECU within 30 minutes: 1. Check there is sunlight on the array (the microinverters don t communicate with the ECU after the sun goes down). 2. Check that the PV system is turned on at the main switchboard. If there is any doubt as to whether the system is energised, check the LED on the microinverters and ensure they are flashing green. 3. If the installation has multiple phases, ensure the ECU is on the same phase as the PV system. 4. Check that the ECU is plugged directly into a power point not into an extension lead, power board or UPS. 5. Move the ECU to a different power point (Start by trying the closest power point to the switchboard). 6. Try entering the inverter ID numbers into the ECU manually (refer detailed instructions below). If some but not all microinverters are found by the ECU within 30 minutes: 1. Check the status of each microinverter by observing the LED: Flashing Slow Green (10s gap) - Producing power and communicating with ECU. Flashing Fast Green (2s gap) Producing power and not communicating with ECU Flashing Red Not producing power If an inverter is not flashing at all or is flashing red, it is not operating correctly and will not be communicating with the ECU. Replace the microinverter. 2. If the LEDs on all inverters are flashing green, try entering the inverter ID numbers into the ECU manually (refer detailed instructions below). If the ECU is showing - web Check the network connectivity to the router. You may need to reboot the router. APS commissioning checklist Rev.1.0 May 2012 AC Solar Warehouse Page 3

4 Entering inverter ID numbers into the ECU manually 1. Connect the ECU to a broadband router and power it up 2. Obtain the IP address, (e.g ) from the ECU display. 3. Connect a computer to the router and enter the IP address from the ECU display into the Internet Browser. This should bring up the screen below: 4. Click on Administration 5. Click the ID management, and then click on Clean ID APS commissioning checklist Rev.1.0 May 2012 AC Solar Warehouse Page 4

5 5. Type the Serial Number of each microinverter into the Input Inverter ID section 6. Click OK and wait a few minutes. 8. Click on Real Time Data. The real time data for each inverter will be displayed. APS commissioning checklist Rev.1.0 May 2012 AC Solar Warehouse Page 5

6 9. You should be able to see which inverters are communicating with the ECU and which ones aren t. Check the operation of the microinverters that are not commutating by observing the LED on the microinverter and replace if necessary. APS commissioning checklist Rev.1.0 May 2012 AC Solar Warehouse Page 6