PV Powered 3000 Manual de Instalação descarregar pdf (Página 55)

SMA Solar Technology AG Troubleshooting

Installation Manual SB25_30-IA-IEN115050 55

Earthfault The electrical insulation between the PV plant and earth is defective.

The resistance between the DC plus and/or DC minus connection and

earth is outside the defined limit range.

Corrective measures

• Check the insulation of the PV plant.

• Check the installation for earth faults as described in Section 9.3.1

"Checking the PV Array for Earth Faults" (page57).

ROM The inverter's firmware is faulty.

Corrective measures

• If this fault occurs frequently, contact the SMA Service Line.

Shutdown Temporary inverter fault.

Corrective measures

• Contact the SMA Service Line.

Vac-Bfr

Vac-Srr

The line voltage is no longer within the permissible range

("Bfr" or "Srr" is an internal message of no relevance for the user).

This fault can be caused by any of the following conditions:

• Mains disconnected (miniature circuit-breaker, fuse)

• AC cable is interrupted

• AC cable is highly resistive

The inverter disconnects itself from the power distribution mains for safety

reasons.

Corrective measures

• Check the line voltage and mains connection on the inverter.

• If the line voltage lies outside the acceptable range because of

local mains conditions, ask the network operator if the voltages can

be adjusted at the feed-in point or if they agree to changes in the

values of the monitored operating limits

(operating parameters: Vac-Min and Vac-Max).

• If the line voltage lies within the tolerance range, yet "Vac-Bfr" or

"Vac-Srr" faults are still displayed, contact the SMA Service Line.

Message Description and corrective measure

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 75 76

Sem comentários

PV Powered 3000 Manual de Instalação Página 55