SMA SMC 9000TL Installation - Manual (Page 60)

60 SMC9-11TLRP-IA-en-51 Installation Manual
10 Troubleshooting SMA Solar Technology AG
Errors, faults and warnings are shown in the display and start in the first line with the word "Error",
"Disturbance" or "Warning". In the second line of the display, the cause of the error, fault or warning
is shown.
10.2.3 Errors, Faults, Warnings
Message Cause and corrective measures
!PV-Overvoltage! -
!DISCONNECT DC! Overvoltage at DC input. The inverter may be destroyed.
This message is additionally highlighted by rapid flashing of the
backlight.
Corrective measures:
• Disconnect the miniature circuit-breaker.
• Remove the ESS.
• Unlock and remove all DC connectors using a screwdriver
(blade width: 3.5 mm).
– Insert the screwdriver into one of the side slots.
– Remove the DC connectors.
• Check whether the DC voltage is below the inverter's maximum
input voltage. If the DC voltage is below the maximum input
voltage of the inverter, connect the DC connectors to the inverter
again.
If the DC voltage is above the maximum input voltage of the
inverter, check the PV plant design or contact installer of the
PV array.
• If this message is repeated frequently, disconnect the inverter
(see section 9) and contact the SMA Service Line.
ACVtgRPro The ten-minute average mains voltage is no longer within the
permissible range. The mains voltage or grid impedance at the
termination point is too high. The inverter disconnects from the
electricity grid to comply with the power quality.
Corrective measures:
• Check that the mains voltage at the termination point of the
inverter is permanently in the permissible range.
If the mains voltage is 253 V or higher, contact the network
operator. Ask the network operator whether the voltage can be
adapted at the feed-in point or whether the he will approve a
change in the limiting value of the "ACVtgRPro" parameter.
If the mains voltage is permanently in the permissible range and
this message is still displayed, contact the SMA Service Line.