SMA SB 4200TL Multi-String Installation - Manual (Page 24)

Installation SMA Technologie AG
Page 24 SB4200TL-13:SE2006 Installation Guide
5.3 Activation
You can activate the Sunny Boy 4200TL Multi-String when:
• The AC (grid) cable has been correctly connected.
• All the DC (PV) strings have been connected and all unused PV plug connectors
on the underside of the inverter have been closed with the protecting caps.
• The lid has been tightly screwed on.
Proceedings for Activation
Check whether string voltages comply with limiting values stated in chapter 4.2 „Re-
quirements: PV-Modules” (page 15). If the values are too high, the planner / installer
of the PV generator must modify the strings.
If the LED blinks again when the PV plant is reconnected to the inverter although
string voltages have been checked to be ok, disconnect the PV panel again and con-
tact SMA Technologie AG (see chapter 10 „Contact” (page 39)).
1. Switch the circuit breaker on.
2. Check whether the LEDs indicate trouble-free
operation of the Sunny Boy 4200TL Multi-String
based on the next page. If this is the case com-
missioning has been successfully completed.
If the lower yellow LED repeatedly blinks once a second for four
times, immediately disconnect the grid voltage and the PV gener-
ator from the Sunny Boy 4200TL Multi-String. The input voltage is
too high. The inverter might be damaged!
Photovoltaik-Stringwechselrichter
Photovoltaic string inverter