SMA PVO-N-20 User Manual
Page 46
10 Troubleshooting
SMA Solar Technology AG
46
PVO-BOX-IA-en-10
Installation Manual
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x
x
Yellow,
red
x
Insulation fault:
– Insulation resistance (including
inverter) against earth less than
200 kΩ
– Earth fault in the PV array
– Inverter and PV Offset Box in operation
simultaneously
• Check PV array for earth fault
(see inverter installation manual).
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x
x
x
Yellow,
red
Device fault
• Contact the SMA Service Line
(see Section 14 "Contact", page 52).
Off
Flashing
red
Flashing
red
Flashing
red
x
Setting fault:
– The operating mode and output
voltage settings are not compatible
– Prohibited switch position selected
• Configure the SMA PV Offset Box
correctly (see Section 8 "Commissioning",
page 41).
Off
Off
Off
Off
Off
No supply voltage
• Check AC-side installation.
Description and corrective measure