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4 leds – SMA PVO-N-20 User Manual

Page 14

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4  Product Description

SMA Solar Technology AG

14

PVO-BOX-IA-en-10

Installation Manual

4.4 LEDs

The LEDs for fault indication are 2-colour. They glow red if operation is currently interrupted. They
glow yellow if a fault has previously occurred, but normal operation is currently possible.

Item

Description

Explanation

A

Green LED

Indicates the operating state of the SMA PV Offset Box.

B

Red-yellow LED

Indicates an FE connection fault or AC connection fault.

C

Red-yellow LED

Indicates a DC connection fault.

D

Red-yellow LED

Indicates an insulation fault.

E

Red-yellow LED

Indicates a device fault.