149Maintenance
EN
8.9 Replacement of the buffer battery
WARNING – B Some inverter parts may be subject to hazardous voltages for the operator. Before
performing any work on the inverter, refer to “Inverter total de-energization and safe access”
paragraph on this manual to know all the necessary step to safely operate on the inverter.
Replacing the buffer battery (47) is carried out on the wiring box (02) and may be necessary in the following
circumstances:
• LED error signal.
• Reset of the date and time settings.
The buffer battery (47) is of the CR2032 type and is installed
on the communication and control board (26).
Procedure to replace the buffer battery (47):
• Perform the “Inverter total de-energization and safe access” procedure before operate on the inverter.
• Open the front wiring box cover (07).
WARNING – B Do not open the power module cover (06) during the replacement operation.
• Remove the buffer battery (47) to be replaced.
• Install the new buffer battery, taking care to handle it with insulating gloves in order not to compromise
the charge and respecting the polarity shown on the diagram on the communication and control board
(26).
CR2032
X1
• Reconnect all the input strings and restart the inverter.
J9 J10
X2
J2
S2
J4
J1
S1 S3
J3
J6
47
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