SUNNY BOY 2500 / 3000 - Installation Guide - Sinetech

SMA SOLAR TECHNOLOGYSUNNY BOYSMA Solar Technology AGInstallation5.3 CommissioningYou can commission the Sunny Boy when:• the housing cover is securely screwed on• the Electronic Solar Switch is securely attached• the AC (grid) cable is connected correctly.• the DC cables (PV strings) are fully connected and the unused DC plug connectors on thebottom of the housing are closed using the protective caps.Commissioning procedure1. Switch the line circuit breaker to the "On" position.On2. Now look at the LED display and consult the tableon the following page to check whether the SunnyBoy is in a fault-free and expedient operatingmode. If this is the case, commissioning wassuccessfully completed.NOLOGYOYOperation (green)Ground fault (red)Fault (yellow)NOTICE!Excessive DC input voltage can destroy the Sunny Boy!• Disconnect the grid voltage and the PVgenerator if after a short time the bottomyellow LED flashes four times at intervalsof one second and the display shows themessage on the right.Check the string voltages again to make sure they are within the limits stated in section 4.2 „PVGenerator Requirements“ (17). If the input voltage is too high, contact the planner / installer of thePV generator for assistance.If despite checking the string voltages the LED signal occurs again when the PV generator is connectedto the Sunny Boy, disconnect the PV generator from the Sunny Boy again and contact SMA ServiceLine (see section 10 „Contact“ (49)).Installation Guide SB25_30-IEN083212 31