Resetting The Operation Inhibition After Detection Of An Arc Fault - SMA SUNNY TRIPOWER 12000TL-US Instructions D'installation

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9. Measure the remaining strings in the same manner.
☑ If the insulation resistance of a string deviates considerably from the theoretically
calculated value, there is a ground fault present in that string.
10. Reconnect to the inverter only those strings from which the ground fault has been eliminated.
11. Reconnect all other strings to the inverter.
12. Recommission the inverter (see Section 11, page 58).
13. If the inverter still displays an insulation error, contact the Service (see Section 17 "Contact",
page 74). The PV modules might not be suitable for the inverter in the present quantity.
10.6 Resetting the Operation Inhibition after Detection of an
Arc Fault
If the red LED is glowing and the event number 4301 is displayed in the communication product
(e.g. Sunny Portal), the inverter has detected an electric arc and interrupts feed-in operation.
Requirement:
☐ A communication product corresponding to the type of communication used must be
available.
Procedure:
1.
Danger to life due to electric shock
• Disconnect the inverter from all voltage sources (see Section 9, page 39).
2. Ensure that the PV modules, the connected cables and plugs are not defective.
Repair or replace defective PV modules, cables or plugs.
3. Recommission the inverter (see Section 7, page 35).
4. Access the user interface of the communication product.
5. Reset the operation inhibition by setting one of the following parameters:
• Select the parameter Reset operating data or Op.FncSetIstl and set to Reset
operation inhibition or RSPermStopOp. This effects resetting of the operation
inhibition and the inverter will start feeding in again.
or
• Select the parameter AFCI switched on or AfciIsOn and set to No and then back to
Yes. This effects resetting of the operation inhibition and the inverter will start feeding in
again.
Installation Manual
10 Troubleshooting
STPTL-US-10-IA-xx-17
57

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