T012C6
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Maintenance operations are required to be carried out by personnel familiar with and specically trained in the
operations of this inverter. ABB recommends personnel having appropriate North American Board of Certied
Energy Practitioners (NABCEP) certication and/or other professional licensing and/or having received training
through ABB or other authorized organizations perform maintenance operations.
DO NOT allow the equipment to be used if problems of any kind are found.
WARNING! Maintenance operations must be carried out with the equipment disconnected from the
grid, unless otherwise indicated.
After shutdown, wait at least 10 minutes before removing guards or covers in order to allow devices
inside the unit to cool and allow any electrostatic charges and parasitic voltages to dissipate.
For cleaning, DO NOT use rags made of lamentary material or corrosive products that may damage parts of the
equipment or materials which may generate electrostatic charges. Avoid temporary repairs. All repairs should be
carried out using only genuine spare parts. The maintenance technician is under an obligation to promptly report
any anomalies.
Always use the personal protective equipment (PPE) provided by the employer and comply with the safety
conditions in the Introduction and safety, section 1, of this manual. ABB accepts no liability if the periodic checks
and maintenance cycles indicated in this manual and in the attached documentation are not complied with correctly,
or if maintenance is entrusted to unqualied staff.
Routine maintenance
Routine maintenance operations noted below can be carried out by the user or by the installer.
Clean the equipment at least annually; in particular, the lower grill on the wiring box through
which the air for cooling the heatsink passes and the heatsink itself. If possible, use an extractor
or suitable pipe cleaners to remove debris.
Annually or in the event of malfunction, check that the environmental conditions have not
changed drastically (exposure to weather conditions); also check that the inverter chassis has
not been isolated by foreign bodies such that airow may be affected.
Annually or in the event of malfunction, check the tightness of the cable opening plugs, the
tting of the connectors and front covers. Loose ttings can allow water seepage into the
cabinet, possibly leading to short-circuit conditions due to high humidity.
6
Maintenance
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