YASKAWA Varispeed-616G3 Instructions Manual

MAINTENANCEPERIODIC INSPECTIONThe VS-616G3 requires very few routine checks . It will function longerif it is kept clean, cool and dry, while observing the precautions listedon Page 8 under "LOCATION" . Check for tightness of electrical con-nections, discoloration or other signs of overheating or aging . Use Table 5 as your inspection guide. Before servicing, turn off AC main circuitpower and be sure that the CHARGE lamp is OFF .Note :ComponentTable 5 Periodical InspectionCheckOperating conditions are as follows:" Ambient temperature : 30°C (86°F)/yearly average" Load factor : 80% or below" Operation rate : 12 hours or below / dayMAINTENANCECorrective ActionExternal terminals, unit Loose screws Tightenmounting bolts, connec-tors, etc Loose connectors TightenBlow with dry compressed air of 39 .2 xCooling Fins Build-up of dust and dirt 10' to 58 .8 x 10 , Pa (57 to 85 psi)pressure .Blow with dry compressed air of 39 .2 xPrinted circuit board Accumulation of conductive dust or 10' to 58 .8 x l0' Pa (57 to 85 psi)oil. pressure .If dust and oil cannot be removed,replace the board.For abnormal noise: and vibration.Cooling fan Whether the cummulative operation Replace the cooling fan.time exceeds 20,000 hours or not .Blow with dry compressed air of 39 .2 xPower elements Accumulation of dust and dirt 10' to 58 .8 x 10' Pa (57 to 85 psi)pressure .Smoothing capacitor Discoloration or odor Replace the capacitor or inverter unit .for more: efesotomasyon - Yaskawa drive