SMA 20000TL Service Manual User Manual
Page 15
Event number
Message, cause and corrective measures
701
Frq. not permitted > Check parameter
The power frequency is not within the permissible range. The inverter has dis-
connected from the utility grid.
Corrective measures:
• If possible, check the power frequency and observe how often
fluctuations occur.
If fluctuations occur frequently and this message is displayed often,
contact the grid operator. The grid operator must approve changes to the
operating parameters of the inverter.
If the grid operator gives its approval, discuss any changes to the
operating parameters with the SMA Service Line.
1302
Waiting for grid voltage > Installation failure grid connection > Check
grid and fuses
The inverter has detected an error in the AC cabling. The inverter cannot con-
nect to the utility grid.
Corrective measures:
1. Ensure that the AC connection is correct (see the operating manual for
2. Ensure that the country data set has been configured correctly. Select the
parameter Set country standard or CntrySet and check its value.
1501
Reconnection fault grid
The changed country data set or the value of a parameter you have set does
not correspond to the local requirements. The inverter cannot connect to the
utility grid.
Corrective measures:
• Ensure that the country data set has been configured correctly. Select the
parameter Set country standard or CntrySet and check its value.
3301
Unstable operation > Generator output too low
There is not enough power at the DC input of the inverter for stable operation.
This may be caused by snow on the PV modules or insufficient irradiation. The
inverter interrupts feed-in operation and can no longer connect to the utility
grid.
Corrective measures:
1. If irradiation is too low, wait for it to increase.
2. If this message is displayed frequently, ensure that the PV array has been
correctly rated and wired.
5 Troubleshooting
SMA Solar Technology AG
Service Manual for Installers
15
STP20-25TL-SG-en-11