SMA SC 250U - Manual (Page 38)

Error Diagnosis SMA America, LLC
38 SCUS-BE-BUS120514 User Manual
7.1.4 Display Fault
If the fault is with the display, the cause of the fault appears in
text line (see example to the right). A display fault is shown
without a two-digit error code. The table below describes the
type of fault, its cause and what you can do to rectify the fault.
7.1.5 Acknowledge Error at the Sunny Display
Acknowledge the error as described in the following.
1. Rectify the error at the Sunny Central as described in section 7 ”Error Diagnosis” (page 32).
2. Press the glowing pushbutton once.
– After 2 seconds the error is acknowledged.
No. Description
none Error text:
NO COMMUNICATION
Cause of fault:
The display has received no data for 5 minutes.
Corrective measures:
• Check communication cable.
• Check supply voltage of the operation control unit (BFR).
• Check operating mode of the Display (see the Sunny Central installation guide).
– WEBBOX: For this operating mode a Sunny WebBox has to be installed.
– NO WEBBOX: No Sunny WebBox installed.
• For operation with Sunny WebBox: Check function of the Sunny WebBox.
• Contact the SMA Serviceline.