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SMA Technologie AG Installation

Installation Guide SB25_30-11:SE0307 Page 31

6.3 Commissioning

You can commission the Sunny Boy when:

• the housing cover is securely screwed shut,

• the AC (grid) cable is connected correctly,

• the DC cables (PV strings) are fully connected and the unused DC plug connectors

on the bottom of the housing are closed using the protective caps.

How to Commission the Inverter

Check the string voltages again to make sure they are within the limits stated in section

5.2 "PV Generator Requirements" (Page 15). 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 Technologie AG (see section 12 "Contact" (Page 63)).

1. First of all, switch the line circuit breaker to the

"on" position.

2. Now look at the LED display and consult the

table on the following page to check whether the

Sunny Boy is in a fault-free and appropriate

operating mode. If this is the case,

commissioning was successfully completed.

Warning!

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 risk of damage to the inverter resulting

from excessive DC input voltage!

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PV Powered 2500 Installationsanleitung Seite 31