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Commissioning the Sunny Boy SMA Solar Technology AG

26 SB25_30-IEN092520 Installation Guide

6 Commissioning the Sunny Boy

1. Check the following requirements before commissioning:

– device is securely in place

– correct connection of the AC cable (grid)

– full connection of the DC cables (PV strings)

– unused DC plug connectors on the underside of the enclosure are sealed with protecting

caps

– the enclosure lid is securely screwed in place

– the Electronic Solar Switch (ESS) is securely plugged

– the line circuit breaker is laid out correctly

2. Switch on the line circuit breaker.

☑ The green LED is glowing or blinking if there is

enough radiation: commissioning has been

successful.

or:

☑ The red or yellow LED is glowing or blinking: there

has been an error. Proceed to step 3.

3. Read section 9 "Troubleshooting" (page36) and, if

necessary, the user manual provided. The meaning of

the LED's as well as the error and status messages on

the display are described in this section.

A Green LED In operation

B Red LED Ground fault or varistor

defective

C Yellow LED Error

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PV Powered 2500 Przewodnik Instalacji Strona 26