SMA SB 4200TL Multi-String - Manual (Page 22)

Device Description SMA Technologie AG
Page 22 SB4200-12:FE4804 Operating Instructions
Input Voltage (PV Generator) too High
When the failure occurs, the yellow failure LED is on for five seconds and then starts
the blinking code by staying off for three seconds and then blinking four times in short
intervals. The code is sent three times.
The Sunny Boy indicates that the input voltage is too high. The voltage of the PV ge-
nerator exceeds 750 V DC the respectively admissible voltage!
Immediately disconnect the PV generator from the Sunny Boy
4200TL Multi-String. Too high voltage may lead to irrepairable
damages!
Have your installer examine your plant configuration.
5 s 3 s 1 s 1 s 1 s 1 s
LED on LED off
Yellow LED is blinking 4
times in short intervals.
The signal is repeated 3 times and
then starts from the beginning.