Periodic Maintenance - YASKAWA L1000A Technical Manual

200 v class: 1.5 to 110 kw (2 to 150 hp) 400 v class: 1.5 to 315 kw (2 to 500 hp) 600 v class: 1.5 to 160 kw (2 to 250 hp)
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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, Control Board Cooling Fan
• Electrolytic Capacitors
• Inrush Prevention Circuit
• IGBTs
For replacement parts, contact the distributor where the drive was purchased or contact Yaskawa directly.
◆ 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
Electrolytic Capacitors
<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 (104°F) (IP00 enclosure)
Load factor: 80% maximum
Operation time: 24 hours a day
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 322
Table 7.4 Performance Life Monitors Used for Component Replacement
Parameter
Component
U4-03
Cooling Fan, Circulation Fan,
Control Board Cooling Fan
U4-04
U4-05
DC Bus Capacitors
U4-06
Inrush (pre-charge) Relay
U4-07
IGBT
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Table 7.3 Estimated Performance Life
for more details.
Displays the accumulated operation time of the fan, from 0 to 99999 hours. This value is automatically reset to 0 once 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.
Displays the percentage of the maintenance period reached by the IGBTs.
7.3 Periodic Maintenance
Estimated Performance Life
10 years
10 years
<1>
Contents
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