Error no. Explanation
Inverter behavior
Corrective measures
S1
S2
R
0404*
Frequency change per second too
high for grid operation
30 s
30 s
‒
‒
0502*
Power frequency is too low. Power
frequency disturbance detected by
standard monitoring.
30 s
30 s
‒
• Check power frequency.
• Check the display of the grid monitoring
relay.
• Make sure the fuses in the load circuit
function properly.
0503*
Power frequency is too high.
Power frequency disturbance de-
tected by standard monitoring.
30 s
30 s
‒
0504*
Power frequency is too low. Power
frequency disturbance detected by
redundant monitoring.
30 s
30 s
‒
0505*
Power frequency is too high.
Power frequency disturbance de-
tected by redundant monitoring.
30 s
30 s
‒
0506*
The inverter has detected a stand-
alone grid and has disconnected
from the utility grid.
W
W
‒
• Check power frequency.
0801*
One line conductor of the utility
grid has failed.
30 s
30 s
‒
• Check the grid voltage.
• Make sure the external fuses work
properly.
• Make sure the AC cable connections
are tight.
0802*
1301
Left-hand rotating magnetic field is
connected.
30 s
Q
‒
• Check phase position.
• Make sure all fuses are switched on.
1500
The conditions for grid reconnec-
tion have not yet been reached af-
ter a grid error.
W
W
‒
• Check the power frequency and grid
voltage.
* Depending on the parameterization, the disturbance message may have to be acknowledged manually.
9 Troubleshooting
SMA Solar Technology AG
System Manual
123
MVPS22JP-SH-en-11
Summary of Contents for 1000-1SC
Page 257: ......
