Periodic Maintenance; Periodic Maintenance; Replacement Parts - YASKAWA U1000 Technical Manual

7.3

Periodic Maintenance

The drive has Maintenance Monitors that keep track of component wear. 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 predicted
maintenance periods for the components listed below.
• Cooling Fan, Circulation Fan
• Capacitors for the Control Power Supply
• Inrush Prevention Circuit
For replacement parts, contact the distributor where the drive was purchased or contact Yaskawa directly.
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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.
Component
Cooling Fan, Circulation Fan
Capacitors for the Control Power Supply
<1> Capacitors for the control power supply cannot be replaced on some lower capacity models. Complete drive replacement may be required for these
models.
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 (IP00/Open Type enclosure)
Load factor: 80% maximum
Operation time: 24 hours a day
n Performance Life Monitors Maintenance 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 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 419
Parameter Component
U4-03
Cooling Fan
Circulation Fan
U4-04
U4-05 DC Bus Capacitors
U4-06 Pre-charge Circuit
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
Table 7.3 Estimated Performance Life
Table 7.4 Performance Life Monitors Used for Component Replacement
Displays the accumulated operation time of the fan from 0 to 99999 hours. This value is automatically reset to
0 after it reaches 99999.
Displays the accumulated fan operation time as a percentage of the specified maintenance period.
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.
Estimated Performance Life
for more details.
Contents

7.3 Periodic Maintenance

10 years
<1>
10 years
7
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