Page 12 Operating Instructions Powador 1501xi/2501xi*/3501xi/4501xi/5001xi**
Status Explanation Comment
0 Inverter has just switched on Only for a brief period after being fi rst switched on in the morning.
1 Waiting to start Grid parameters and generator voltage are checked.
2 Waiting to switch off Insuffi cient generator voltage and generator power. The status before
it switches over to night shutdown mode.
5 Grid feed mode The inverter is feeding into the grid.
8 Self test The line relay and the shutdown of the power electronics are tested
prior to the commencement of grid feed mode.
10 Overtemperature shutdown If the inverter overheats (heat sink temperature > 85 °C) due to the
ambient temperature being too high and inadequate air circulation,
the inverter switches off.
12 Overload shutdown Protective function of the inverter when too much generator power
is supplied.
13 Protection shutdown Protective function of the inverter for short-lived line failures.
14 Line failure Possible line failure causes:
• Line overvoltage
• Line undervoltage
• Line impedance jump
15 Transition to night shutdown Inverter switches from stand-by to night shutdown mode.
16 Operation stop 3 faults in self test – resumes after a complete shutdown.
24 DSP error Possible causes of a fault in the control system:
• Internal computing error (e.g. division by 0)
• DC Link overvoltage
• Control card overtemperature
• Solar generator overvoltage
28 Hardware error The self test was unsuccessful. There is a fault.
30 Measurement error The current and voltage measurements in the inverter are not plau-
sible.
33 DC grid feeding error The DC feed into the grid was too high.
34 Communication error The DC feed into the grid was too high.
Table 4.3: Explanation of the operating states
Operating states
Section 4 · Operation
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