Replacement of the buffer battery
Replacing the buffer battery a20 is carried out on the DC wiring box
02
and may be necessary in the following circumstances:
1. LED error signal
2. Reset of the date and time settings
The battery is of the CR2032 type and is installed on the communication
and control board
09
. It can only be accessed after having removed the
front cover
08
of the DC wiring box installed to protect the areas under
high voltage.
Procedure to replace the buffer battery:
1. Disconnect the inverter by disconnecting the DC and AC disconnect
switches tted on the outside of the inverter (Standard version) or the AC
and DC disconnect switch (S / -SX / -SY versions) followed by the quick
t input connectors.
2. Open the DC disconnect switch and the AC disconnect switch installed
on the covers of the two wiring boxes
3. Remove the front cover
08
installed on the DC wiring box
02
4. Remove the buffer battery a20 to be replaced
5. Install the new 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
5. Fit the new plastic cover above the communication and control board
6. Reconnect all the input strings and start the inverter.
~30°
ON
3
2
1
OFF
S6
ON
3
2
1
OFF
S6
R46
R49
3
2
1
J1
J18
J7 J5
J8
X5
2
2
1
2
1
18
17
1
18
17
J6
J15
J22
J9
J10 J11 J12
J16
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
a20
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