145Maintenance
EN
8.5 Replacing the DC surge arrester cartridge
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.
NOTE – D The replacement of DC surge arrester cartridge is available only for models that
use replaceable cartridges slot. For the model produced from Week 45 / Year 2019 the only
replaceable cartridges are the PE cartridge (one per each board).
Replacing the DC surge arrester cartridges (24) may be necessary in the following circumstances:
• “Alarm” LED flashing, “Power” LED steady ON.
•
Presence of “W018” Error in “INVERTER LOG menu” section of web user
interface.
• The inspection window of DC surge arrester cartridge is RED.
The DC surge arrester cartridges (24) are installed on the DC surge arrester plate
(21) inside the wiring box (02).
Procedure for replacing one of the DC surge arrester cartridges (24):
• 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.
• Push the side snaps and pull out the cartridges.
• Insert the new cartridge in the empty slot.
21
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