SMA STP 15000TL Service Manual - Manual (Page 21)

Event number Display message, cause and corrective measures
8202 Connect ESS, do not open cover
Device disturbance or reverse current in the PV array. Wait until dark before
disconnecting the PV array from the inverter in order to prevent the risk of an
electric arc occurring when the DC connectors are pulled out.
Corrective measures:
• Securely plug in the ESS all the way.
• Disconnect the inverter from all voltage sources when it is dark (see
Section 2.2, page 7).
8203 Interference device > Do not disconn. ESS
The cause must be determined by the Service.
Corrective measures:
• Disconnect the inverter from all voltage sources when it is dark (see
Section 2.2, page 7).
• Contact Service (see Section 15, page 43).
8301 Lightn.prot.inactive > Chk lightn.prot.A/PE
At least one surge arrester is defective.
Corrective measures:
• Check the function of the surge arresters (see Section 10, page 34).
8302 Lightn.prot.inactive > Chk lightn.prot.B/PE
At least one surge arrester is defective.
Corrective measures:
• Check the function of the surge arresters (see Section 10, page 34).
8401 Overheating > Disconn. device from generator and grid
Device disturbance due to overheating in the inverter. The inverter disconnects
from the utility grid and from the PV array.
Corrective measures:
• Contact Service (see Section 15, page 43).
9002 Grid Guard-Code invalid
The SMA Grid Guard code entered is incorrect. The operating parameters are
still protected and cannot be changed.
Corrective measures:
• Enter the correct SMA Grid Guard code.
9003 Grid param. locked
The parameters are now locked but can be changed at any time via the rotary
switch. No corrective measures required.
4 Troubleshooting SMA Solar Technology AG
Service Manual 21 STP15-17TL-10-SG-en-10