SMA SC 200 - Manual (Page 90)

Troubleshooting and Problem Solving SMA Solar Technology AG
90 SC-BEN100262 User Manual
222 Error text:
Ambient temperature Error type 2
Cause of error:
The ambient temperature is higher than 51 °C.
Corrective measure:
• Check the cooling concept.
• Check the fans.
• Check the ambient conditions.
• Check the sensor.
400 Error text:
internal failure of inverter bridge Error type
2/3
Cause of error:
Internal inverter bridge fault (e.g. symmetry fault, board voltage, undertemperature, sensor
broken).
Corrective measures:
If this error occurs frequently, contact the SMA Serviceline.
402 Error text:
ser. com. with inverter bridge disturbed Error type 2
Cause of error:
• The RS485 communication between the inverter bridge and the Sunny Central Control
is interrupted.
• The inverter bridge or the Sunny Central Control may be faulty.
Corrective measures:
• Check the RS485 wiring.
• If this is a permanent error, please contact the SMA Serviceline.
408 Error text:
PV Overvoltage Error type 3
Cause of error:
DC voltage is too high on the generator side.
Corrective measures:
• Immediately disconnect the PV generator from the Sunny Central! Danger of damage
to the Sunny Central!
• Check DC voltage.
• Check module wiring and system design.
No. Description