Specifications

Fault Code Descriptions
975-0581-01-01 5–11
This manual is for use by qualified personnel only
Control Unit Disconnect Errors
These errors cause the inverter to disconnect from the grid and shut down. They
are reported to the control unit. Should these situations occur, contact Schneider
Electric Customer Service.
Fault 0152 IGBT Over-current
Cause: The current has exceeded 2000 Arms.
Fault 0252 Switch Fault
Cause: An IGBT was activated, but no feedback signal was received confirming
activation.
Fault 0452 Over-temperature
Cause: The AC current converter’s cooling element temperature has exceeded
80 °C. The temperature is displayed in the display.
Fault 0852 Over-voltage DC Bus
Cause: The intermediate circuit voltage has exceeded 950 Vdc.
If the inverter has the 1000 Vdc option, then this fault only applies while the
inverter is producing power. Before it starts, the DC voltage can reach 1000 Vdc.
Fault 1052 Earth Fault
Cause: The PV array exceeds the differential current limit of the PV terminals; the
difference in current between PV+ and PV- exceeds the predefined limit.
Fault 2052 Under-voltage 24V Converter
Cause: The power semiconductor’s control voltage is below 20 V.
Fault 0153 DC Over-current
Cause: The DC bus current has exceeded 1250 A average.
Fault 0853 Too Cold or Internal Voltage not in Range
Causes:
• The internal temperature sensor is reporting temperature below 0°C.
• The internal control circuit supply voltage or clock have malfunctioned.