7.3 Periodic Maintenance
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 381
Periodic Inspection &
Maintenance
7
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.
For replacement parts, contact the
distributor where the drive was purchased or contact YASKAWA directly.
• Cooling Fan, Circulation Fan, Control Board Cooling Fan
• Electrolytic Capacitors
• Inrush Prevention Circuit
•IGBTs
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.
Table 7.3 Estimated Performance Life
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 (IP20/IP00 enclosure)
Yearly average of 30°C (IP20/NEMA 1, UL Type 1 enclosure, side-by-side mounting, finless drive or external heatsink installation)
• 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%, the
re is increased risk that the drive may malfunction. YASKAWA
recommends checking the maintenance period regularly to ensure maximum performance life.
Set parameters L8-12 (Ambient Temperature Setting) and L8-35 (Installation Method
Selection) for use with the
installation environment when using maintenance monitors.
Refer to Recommended Periodic Inspection on page 379 for more details.
Table 7.4 Performance Life Monitors Used for Component Replacement
Component Estimated Performance Life
Cooling Fan, Circulation Fan, Control Board Cooling Fan 10 years
Electrolytic Capacitors
10 years <1>
<1> The drive has few serviceable parts and may require complete drive replacement.
Parameter Component Contents
U4-03
Cooling Fan, Circulation Fan,
C
ontrol Board Cooling Fan
Displays the accumulated operation time of the fan, from 0 to 99999 hours. This value is automatically reset to 0 once it
reaches 99999.
U4-04 Displays the accumulated fan operation time as a percent
age of the specified maintenance period.
U4-05 DC Bus Capacitors Displays the accumulated time the capacitors ar
e 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 mai
ntenance period reached by the IGBTs.
To Next Page
Loading...
Need help?
General
