7.3 Periodic Maintenance 7.3 Periodic Maintenance The drive has various "maintenance monitors." This feature provides advance maintenance warning and eliminates the need to shut down the entire system for unexpected problems. The drive allows the user to check the following maintenance periods. • Cooling Fan • Electrolytic Capacitors (Main Circuit) • Inrush Prevention Circuit • IGBT u Replacement Parts Table 7.3 contains the estimated performance life of components that require replacement during the life of the drive. Only use OYMC replacement parts for the appropriate drive model and revision.
Table 7.3 Estimated Performance Life 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 parts to 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 • Load factor: 80% maximum • Operation time: 12 hours a day n Performance Life Monitors The drive calculates the maintenance period for components that may require replacement during the life of the drive.
A percentage of the maintenance period is displayed on the LED digital operator by viewing the appropriate monitor parameter. When the maintenance period reaches 100%, there is increased risk that the drive may malfunction. OYMC recommends checking the maintenance period regularly to ensure maximum performance life. Refer to Recommended Periodic Inspection on page 142 for more details. Table 7.4 Performance Life Monitors Used for Component Replacement n Related Drive Parameters Table 7.5 Maintenance Parameter Settings NOTICE: After replacing parts, reset the appropriate maintenance parameters (o4-03, o4-05, o4-07, and o4-09) to 0.
If these parameters are not reset, the function will continue to count down the performance life of the new replaced components. 144 SIEP C710606 33A OYMC AC Drive – J1000 User Manual Component Estimated Performance Life Cooling Fan 2 ~ 3 years Electrolytic Capacitors (Main Circuit) 10 years Parameter Component Contents U4-04 Cooling Fan Displays the accumulated cooling fan operation time as a percentage of the specified maintenance period (displayed in percent %). U4-05 Main Circuit (DC bus) Electrolytic 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 inrush circuit. U4-07 IGBT Displays the percentage of the maintenance period reached by the IGBTs. Parameter Parameter Name Operator Display o4-03 Cooling Fan Maintenance Setting (Operation Time) o4-05 Capacitor Maintenance Setting o4-07 Inrush Prevention Relay (pre-charge) Maintenance Setting o4-09 IGBT Maintenance Setting