2.3 Periodic MaintenanceThe drive has Maintenance Monitors that keep track of component wear. This feature provides advance maintenance warningand eliminates the need to shut down the entire system for unexpected problems. The drive allows the user to check predictedmaintenance periods for the components listed below.• Cooling Fan, Circulation Fan, Control Board Cooling Fan• Electrolytic Capacitors• Inrush Prevention Circuit• IGBTsFor replacement parts, contact the distributor where the drive was purchased or contact Yaskawa directly.u Replacement PartsTable 2.3 contains the estimated performance life of components that require replacement during the life of the drive. Onlyuse Yaskawa replacement parts for the appropriate drive model and revision.Table 2.3 Estimated Performance LifeComponent Estimated Performance LifeCooling Fan, Circulation Fan 5 yearsElectrolytic Capacitors 5 years <1><1> The drive has few serviceable parts and may require complete drive replacement.NOTICE: Estimated performance life based on specific usage conditions. These conditions are provided for the purpose of replacing partsto maintain performance. Some parts may require more frequent replacement due to poor environments or rigorous use.Usage conditions for estimated performance life:Ambient temperature: Yearly average of 30 °C (IP20/NEMA 1, UL Type 1 enclosure, external heatsink) or 40 °C (IP00/Open-Type enclosure)Load factor: 80% maximumOperation time: 24 hours a dayn Performance Life Monitors Maintenance MonitorsThe drive calculates the maintenance period for components that may require replacement during the life of the drive. Apercentage of the maintenance period is displayed on the HOA keypad by viewing the appropriate monitor parameter.When the maintenance period reaches 100%, there is increased risk that the drive may malfunction. Yaskawa recommendschecking the maintenance period regularly to ensure maximum performance life.Refer to Recommended Periodic Inspection on page 164 for more details.Table 2.4 Performance Life Monitors Used for Component ReplacementParameter Component ContentsU4-03 Cooling FanCirculation FanControl Board CoolingFanDisplays the accumulated operation time of the fan, from 0 to 99999 hours. This value is automatically resetto 0 once it reaches 99999.U4-04 Displays the accumulated fan operation time as a percentage of the specified maintenance period.U4-05 DC Bus Capacitors Displays the accumulated time the capacitors are used as a percentage of the specified maintenance period.U4-06 Inrush (pre-charge)Relay Displays the number of times the drive is powered up as a percentage of the performance life of the inrushcircuit.2.3 Periodic Maintenance166 YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
