Maintenance And Inspection - Toshiba TOSVERT-130 G3 Interface Manual

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4. Maintenance And Inspection

Preventive maintenance and inspection is required to maintain the Modbus
communication interface in its optimal condition, and to ensure a long operational
lifetime. Depending on usage and operating conditions, perform a periodic inspection
once every three to six months. Before starting inspections, always turn off all power
supplies to the inverter unit, and wait at least five minutes after the inverter's
"CHARGE" lamp has gone out.
DANGER!
to the inverter, or for at least 5 minutes after power to the inverter has been
removed. A hazard exists temporarily for electrical shock even if the source
power has been removed.
Inspection Points
•
Check that the wiring terminal screws are not loose. Tighten if necessary.
•
Check that there are no defects in any wire terminal crimp points. Visually check
that the crimp points are not scarred by overheating.
•
Visually check the wiring and cables for damage.
•
Clean off any accumulated dust and dirt. Place special emphasis on cleaning the
ventilation ports of the inverter and all installed PCBs. Always keep these areas
clean, as adherence of dust and dirt can cause premature component failure.
•
If use of the inverter unit is discontinued for extended periods of time, turn the
power on at least once every two years and confirm that the unit still functions
properly.
•
Do not perform hi-pot tests on the inverter or Modbus interface board, as they may
damage the unit's internal components.
Please pay close attention to all periodic inspection points and maintain a good
operating environment.
Do not touch any internal parts with power applied
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