SMA SUNNY TRIPOWER CORE1-US - Resetting the Operation Inhibition after Detection of an Arc Fault; Updating the Firmware

7 Troubleshooting
SMA Solar Technology America LLC
User ManualSTP50-US-40-BA-en-1056
12. Recommission the inverter (see inverter installation manual).
13. If the inverter still displays an insulation error, contact the Service (see Section10 "Contact",
page60). The PV modules might not be suitable for the inverter in the present quantity.
7.4 Resetting the Operation Inhibition after Detection of an
Arc Fault
If the red LED is glowing and the event number 4301 or 4302 is shown in the event list on the user
interface of the inverter, the inverter has detected an electric arc and interrupts feed-in operation.
Procedure:
1.
DANGER
Danger to life due to electric shock
• Disconnect the inverter from any voltage sources (see the inverter installation manual).
2. Ensure that the PV modules, the connected DC cables and the terminal block for the DC
connection are not defective.
Repair or replace defective PV modules, DC cables or terminal block for the DC connection.
3. Recommission the inverter (see inverter installation manual).
4. Activate the user interface (see Section4.1, page19).
5. Log into the user interface as an Installer Logging Into the User Interface.
6. Reset the operation inhibition by setting one of the following parameters:
• Select the parameter Reset operating data and set to Reset operation inhibition.
or
• Select the parameter AFCI switched on and set to No and then back to Yes.
☑ This effects resetting of the operation inhibition and the inverter will start feeding in again.
7.5 Updating the Firmware
If no automatic update is set in the communication product (e.g. Cluster Controller) or via the user
interface of the inverter, you have two possibilities to update the inverter firmware:
• Update the firmware via the user interface of the inverter.
• Update the firmware via USB flash drive.