64
Installation and Operating Instructions
V00
11 Troubleshooting
When the PV system does not operate normally, we recommend the following
solutions for quick troubleshooting. If an error occurs, the red LED will light up. The
re
will have “Event
Messages" display in the monitor tools. The corresponding corrective
measures are as follows:
Object
Error
code
Corrective measures
Presumable
Fault
6
• Check the open
-circuit voltages of the strings and
make sure it is below the maximum DC input voltage of
the inverter.
• If the
input voltage is within the permitted range and
the fault still occurs, it might be that the internal circuit
has broken. Contact the service.
33
• Check the grid frequency and observe how often
major fluctuations occur.
If this fault is caused by frequent fluctuations, try to
modify the operating parameters after informing the
grid operator first.
34
•Check the grid voltage and grid connection on inverter.
• Check the grid voltage at the point of connection of
inverter.
If the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the
monitored operational limits after informing the electric
utility company first.
If the grid voltage lies within the permitted range and this
fault still occurs, please call service.
35
• Check the fuse and the triggering of the circuit
breaker in the distribution box.
• Check the grid voltage, grid usability.
• Check the AC cable, grid connection on the inverter.
If this fault is still being shown, contact the service.
