Austa AU-1P20002G-230-EU Installation And Operation Manual - Page 9

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WARNING:

ALWAYS DISCONNECT AC POWER BEFORE DISCONNECTING PV MODULE WIRES

AU-1P20002G

FROM

. THE AC CONNECTOR OF THE FIRST

CIRCUIT IS SUITABLE AS A DISCONNECTING MEANS ONCE THE AC BRANCH CIRCUIT BREAKER

IN THE LOADCENTER HAS BEEN OPENED.

LED indication of error

error mode (except for grounding error)



The LED light flashes in red color.

NOT communicating with AUG-256, and with no error



The LED light flashes in orange color.

grounding fault



The LED light is in solid red color.

Troubleshooting an inoperable AUM micro inverter

To troubleshoot an inoperable AU-1P20002G, follow the steps in the order shown:

1. Check the connection to the utility grid. Verify that the utility voltage and

frequency are within allowable ranges shown in the label of AU-1P20002G.

2. Verify utility power is present at the inverter in question by removing AC, then DC

power. Never disconnect the DC wires while the AU-1P20002G is producing

power. Re-connect the DC module connectors, and then watch for the LED blinks.

3. Check the AC branch circuit interconnection harness between all the

AU-1P20002G. Verify that each inverter is energized by the utility grid as described

in the previous step.

4. Make sure that any AC disconnects are functioning properly and are closed.

5. Verify the PV module DC voltage is within the allowable range shown in the label

of AU-1P20002G.

6. Check the DC connections between the AU-1P20002G and the PV module.

7. PLC signal quality may be checked through the interface on the AUG-256 gateway.

If the PLC signal is weak, it might be due to the distance between the micro

inverters and the gateway. It may also be caused by the interference from other

electronic devices. In most cases, signal quality may be significantly improved by

moving the AUG-256 to closer to the micro inverter arrays, and/or farther away

from other interferers. In some cases, a signal filter (LCF) may be installed to

reduce the interference to PLC communication. If there are two or more

separate AUM systems close by, it is highly recommended to install LCF for each

micro inverter system to block interference from adjacent other systems.

7. If the problem persists, please call customer support at Austa.

WARNING:

DO NOT ATTEMPT TO REPAIR THE AUM-2000; IT CONTAINS NO

USER-SERVICEABLE PARTS. IF TROUBLESHOOTING METHODS FAIL, PLEASE RETURN THE

AUM-2000 TO YOUR DISTRIBUTOR FOR MAINTENANCE.

AU-1P20002G

IN A BRANCH

Disconnecting a AU-1P20002G from the PV Module

To ensure the AU-1P20002G is not disconnected from the PV modules under load,

adhere to the following disconnection steps in the order shown:

1. Disconnect the AC by opening the branch circuit breaker.

2. Disconnect the first AC connector in the branch circuit.

3. Cover the module with an opaque cover.

4. Using a DC current probe, verify there is no current flowing in the DC wires between

the PV module and the AU-1P20002G.

5. Care should be taken when measuring DC currents, most clamp-on meters must be

zeroed first and tend to drift with time.

6. Disconnect the PV module DC wire connectors from the AU-1P20002G.

7. Remove the AU-1P20002G from the PV array racking.

Installing a replacement AU-1P20002G

1. Attach the replacement AU-1P20002G to the PV module racking using hardware

recommended by your module racking vendor

2. Connect the AC cable of the replacement AU-1P20002G and the neighboring

AU-1P20002G to complete the branch circuit connections.

3. Complete the connection map and connect the PV Modules.

1) Complete the connection map

2) Each AU-1P20002G has a removable serial number located on the mounting plate.

Enter this serial number into a AUG-256, and correspond it to a number in the

connection map.

3) Connect the PV Modules

4) Completely install all AU-1P20002G and all system inter-wiring connections prior

to installing the PV modules.

a) Mount the PV modules above their corresponding AU-1P20002G. Each

AU-1P20002G comes with two oppositely sexed DC connectors.

b) First connect the positive DC wire from the PV module to the negatively

marked DC connector (male pin) of the AU-1P20002G. Then connect the

negative DC wire from the PV module to the positively marked DC connector

(female socket) of the AU-1P20002G. Repeat for all remaining PV modules

using one AU-1P20002G for each module.

4. Replace the old PLC_ID in the AUG-256 gateway with the new PLC_ID of

the replacement micro inverter.