SMA SB 3300TL HC - Manual (Page 28)

Commissioning SMA Solar Technology AG
28 SB3300TLHC-IEN094121 Installation Guide
PV Overvoltage
Check the string voltages again to make sure they are within the limits stated in section 5.1 ”Overview
Connection Area” (page 14). If the input voltage is too high, contact the planner / installer of the PV
generator for assistance.
If despite checking the string voltages the LED signal occurs again when the PV generator is connected
to the Sunny Boy, disconnect the PV generator from the Sunny Boy again and contact SMA Solar
Technology (see section 13 ”Contact” (page 40)).
6.2 Blink Codes
NOTICE!
Excessive DC input voltage can destroy the Sunny Boy!
If the bottom yellow LED flashes four times at
intervals of one second, the grid voltage and the
PV generator must be immediately disconnected
from the Sunny Boy! There is a danger of
damage to the inverter resulting from excessive
DC input voltage!
Green Red Yellow Status
Glows continuously Is not glowing Is not glowing OK (feeding operation)
Glows continuously Is not glowing Disturbance
Glows continuously OK (initialization)
Flashes quickly
(3 x per second)
Is not glowing Is not glowing OK (Stop)
Glows continuously Is not glowing Disturbance
Flashes slowly
(1 x per second)
Is not glowing Is not glowing OK (waiting, grid monitoring)
Glows continuously Is not glowing Disturbance
Briefly goes out
(approx. 1x per
second)
Is not glowing Is not glowing OK (derating)
Glows continuously Is not glowing Disturbance
Is not glowing Is not glowing Is not glowing OK (night shutdown)
glowing/blinking Disturbance
Glows continuously Is not glowing Disturbance
glowing/blinking Disturbance
You will find a detailed description of the failure messages and their causes as well as the
meaning of the blink codes in the the Sunny Boy user manual included in delivery.