Yaskawa iQpump Micro - Manual (Page 202)

6.2 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 6.2 contains the estimated performance life of components that require replacement during the life of the drive. Only
use Yaskawa replacement parts for the appropriate drive model and revision.
Table 6.2 Estimated Performance Life
Component Estimated Performance Life
Cooling Fan 10 years
Electrolytic Capacitors (Main Circuit) 10 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 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 40 °C
• Load factor: 80% maximum
• Operation time: 24 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. Yaskawa recommends
checking the maintenance period regularly to ensure maximum performance life.
Table 6.3 Performance Life Monitors Used for Component Replacement
Parameter Component Contents
U4-03
Cooling Fan
Displays the accumulated operation time of the cooling fan, from 0 to 99999 hours. This value is
automatically reset to 0 once it reaches 99999.
U4-04
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.
6.2 Periodic Maintenance
202 YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual