Periodic Maintenance; Periodic Maintenance; Replacement Parts - YASKAWA CIMR-VU BA0001 Technical Manual

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 Yaskawa replacement parts for the appropriate drive model and revision.
Electrolytic Capacitors (Main Circuit)
<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.
Refer to Recommended Periodic Inspection on page 313
Parameter
U4-03
Cooling Fan
U4-04
Main Circuit (DC bus)
U4-05
Electrolytic Capacitors
U4-06 Inrush (pre-charge) relay
U4-07 IGBT
314
Table 7.3 Estimated Performance Life
Component
Cooling Fan
Table 7.4 Performance Life Monitors Used for Component Replacement
Component
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.
Displays the accumulated cooling fan operation time as a percentage of the specified maintenance
period (displayed in percent %).
Displays the accumulated time the capacitors are used as a percentage of the specified maintenance
period.
Displays the number of times the drive is powered up as a percentage of the performance life of
the inrush circuit.
Displays the percentage of the maintenance period reached by the IGBTs.
Estimated Performance Life
for more details.
Contents
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
10 years
<1>
10 years